CN102162682A - Adjustable cathode protective water heater - Google Patents
Adjustable cathode protective water heater Download PDFInfo
- Publication number
- CN102162682A CN102162682A CN201110110897XA CN201110110897A CN102162682A CN 102162682 A CN102162682 A CN 102162682A CN 201110110897X A CN201110110897X A CN 201110110897XA CN 201110110897 A CN201110110897 A CN 201110110897A CN 102162682 A CN102162682 A CN 102162682A
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- power supply
- metal inner
- water heater
- water
- polarity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses an adjustable cathode protective water heater, comprising a water storage tank provided with a metal inner barrel which is provided with an auxiliary anode with an inertial material and is used as the cathode; the auxiliary anode and the metal inner barrel are electrically connected with an additional direct current power supply through a polarity conversion device; when the polarity conversion device is in normal state, the auxiliary anode is electrically connected with the anode of the additional direct current power supply; and the metal inner barrel is electrically the cathode of the additional direct current power supply. In the invention, an additional direct current power supply cathode protective device is utilized to soften the water quality to achieve the purpose of using water heathily, and protect the corrosion prevention to a stainless steel inner barrel; and meanwhile, through the exchanging of the polarity, the cathode protective device is converted into an electrolysis device, so as to achieve the requirement of automatically removing the water scales.
Description
Technical field
The present invention relates to a kind of have anti-incrustation scale of bucket and etch-proof impressed current cathodic protection type water heater in demineralized water, the stainless steel.
Background technology
Water heater is heated to higher temperature with water from low temperature, uses to satisfy the hot water of people in life, production.Water heater is not in the market generally all taked corresponding measure because of water quality than hard fouling at interior bucket, has partly product employing to add the magnesium rod and makes anode, and interior bucket is made the internal bucket of method of negative electrode and protected, but can not popularize.Its reason is the main following problem that exists, because magnesium is reactive metal, will constantly be eroded as anode, needs periodic replacement, changes inconvenient; Next is that this kind method does not have obvious effects to the incrustation scale of removing on the internal cylinder of water heater wall.
Summary of the invention
The object of the present invention is to provide a kind of adjustable cathodic protection type water heater, adopt corrosion resistant impressed current anode, can use for a long time, demineralized water effectively, and can also cathode protection device be switched to electrolysis unit by switching device shifter and remove incrustation scale.
For achieving the above object; technical scheme of the present invention is: adjustable cathodic protection type water heater; comprise the storage tank that is provided with metal Inner bucket; it is characterized in that described metal Inner bucket insulation is provided with the impressed current anode of inert material, metal Inner bucket double as negative electrode; impressed current anode and metal Inner bucket are electrically connected external dc power supply by the polarity conversion equipment; the polarity conversion equipment under normal conditions, impressed current anode is electrically connected the positive pole of external dc power supply, metal Inner bucket is electrically connected the negative pole of external dc power supply.
When adopting technique scheme,, in the water heater metal, insert the impressed current anode of inert material in the bucket, bucket in the metal as one of them auxiliary cathode, and is connected to them above the both positive and negative polarity of external dc power supply by lead by additional power source.In use, the water in the metal bucket just becomes the medium of two utmost points.When connecting dc source, provide electronics to negative electrode continuously, the Ca in the water
2+, Mg
2+Also can constantly gather formation charcoal acid calcium and charcoal acid magnesium not soluble in water above the negative electrode, make the Ca in the water
2+, Mg
2+Fewer and feweri, thus reach the requirement of demineralized water, and barrel knot dirt problem also solves thereupon in the metal.On the other hand, when bucket is as negative electrode in metal since dc source can be constantly in stainless steel bucket electronics constantly is provided, thereby stoped the iron in the interior bucket stainless steel to generate Fe
2+And then the generation iron rust, protected interior bucket not to be corroded effectively.Though charcoal acid calcium that generates and charcoal acid magnesium can be attached to forming incrustation scale above the bucket in the stainless steel, when incrustation scale is adsorbed onto when to a certain degree needing to clear up, with polarity switch electrode is changed, promptly bucket in the metal is converted to anode, the physical reactions of brine electrolysis has taken place, and has promptly generated H at anode
2, negative electrode generates O
2So, can produce a large amount of bubbles at the metal inner barrel wall, bubble increases will produce blasting phenomena, and the incrustation scale that is adsorbed on barrel wall can come off under this effect; Moreover, after bucket in the stainless steel is converted to anode, other cation in the water just turns to auxiliary positive electrode to form and with respect to inner barrel wall the row who is adsorbed in top incrustation scale is torn open power, and this has further promoted coming off of incrustation scale, and sewage can be discharged by the sewage draining exit of water heater.Because the incrustation scale on the metal inner barrel wall significantly reduces through after the scale removal, has also just obtained prolongation the service life of water heater.The present invention is simple in structure, reliable, cost is low, can widely popularize utilization.
Further, use for convenience and operated from a distance, described polarity switch carries out the switching of polarity by remote control.By remote control is installed, can control polarity switch easily, reach the purpose of Remote.
Further, for energy savings, adopt the external dc power supply of environmental protection, described external dc power supply is to exchange in the dc source that the dc source that converts to, dc source that battery provides or solar panel provide any one.By solar panel being set out of doors as external dc power supply, promptly can reach the purpose of demineralized water, antiscaling, descaling, reach the purpose of environmental protection and energy savings again by the solar energy that uses environmental protection.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of adjustable cathodic protection type water heater embodiment of the present invention;
Fig. 2 is the schematic diagram of Fig. 1 under the scale removal state;
Fig. 3 is the circuit theory diagrams of Fig. 1 Semi-polarity conversion equipment;
Fig. 4 is the another kind of circuit theory diagrams of Fig. 1 Semi-polarity conversion equipment.
The specific embodiment
As Fig. 1; shown in Figure 2; adjustable cathodic protection type water heater critical piece of the present invention is a storage tank 1; the impressed current anode 3 of stainless steel; polarity interchanger 4; additional power source 5; incrustation scale reset button or remote controller 6; and have sewage draining exit on the storage tank 1; impressed current anode 3 and storage tank 1 separate by insulation sleeve; the positive pole of external dc power supply 5 is connected on the impressed current anode 3; negative pole is received above the interior bucket of stainless steel of storage tank 1; after connecting additional power source just continuously in the water heater stainless steel bucket surface electronics is provided, this has just stoped the iron in the stainless steel of interior bucket to be transformed into Fe greatly
2+Form iron rust, the Ca in the water on the other hand
2+, Mg
2+Also can constantly gather as forming charcoal acid calcium not soluble in water and charcoal acid magnesium above the stainless steel cask wall of negative electrode, make the Ca in the water
2+Fewer and feweri, thus reach the requirement of demineralized water.
As shown in Figure 3; polarity conversion equipment circuit theory diagrams under normal conditions; JS is in normally off; C1 is in off-state; C1-3 and C1-4 all are in closure state; this moment, the interior bucket of stainless steel of storage tank 1 was connected with the negative pole of external dc power supply, and the positive pole of impressed current anode and external dc power supply is connected, and is in demineralized water this moment, protects tubbiness attitude in the stainless steel.When need clearing up, the incrustation scale on the stainless steel inner barrel wall of storage tank 1 can take following scheme:
Option A:
Shown in the circuit theory diagrams of Fig. 3, when pressing incrustation scale clear switch S (or by remote controller inductive switch S far away is controlled), C1 just is in closure state, C1-1 and C1-2 are just closed simultaneously, C1-3 and C1-4 just are in off-state, this moment, the interior bucket of stainless steel of storage tank 1 was connected with the positive pole of external dc power supply, the negative pole of impressed current anode and external dc power supply is connected, this moment, water heater was in scale removal cleaning state, the reaction of brine electrolysis also can take place at the two poles of the earth this moment, promptly generates H at negative electrode
2, generate O at anode
2, the O that on the stainless steel inner barrel wall, generates
2The bubble explosion makes attached to charcoal acid calcium on the bucket wall and charcoal acid magnesium and comes off, on the other hand after bucket in the stainless steel is converted to anode, other cation in the water just turns to impressed current anode to form and with respect to inner barrel wall the row who is adsorbed in top incrustation scale is torn open power, this has further promoted coming off of incrustation scale, thereby open the effect that reaches cleaning and descaling behind the sewage draining exit effluent sewerage, prolonged the service life of water heater, because the front end at C1 is provided with an adjustable delay switch, can regulate the scale removal time according to actual conditions, C1 causes corrosion with regard to automatic disconnection to avoid the internal bucket of overlong time after reaching setting-up time.
Option b:
As shown in Figure 4, present principles is basic identical with option A, just increases by an additional power source switch S is sent control signal, does not have remote control and don't conveniently splits the situation of putting line operate into thereby solve.
Above-described only is preferred implementation of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement, for example, external dc power supply can be selected solar panel for use; these also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.
Claims (3)
1. adjustable cathodic protection type water heater; comprise the storage tank that is provided with metal Inner bucket; it is characterized in that; described metal Inner bucket insulation is provided with the impressed current anode of inert material; metal Inner bucket double as negative electrode, impressed current anode and metal Inner bucket are electrically connected external dc power supply by the polarity conversion equipment, and the polarity conversion equipment is under normal conditions; impressed current anode is electrically connected the positive pole of external dc power supply, and metal Inner bucket is electrically connected the negative pole of external dc power supply.
2. adjustable cathodic protection type water heater as claimed in claim 1 is characterized in that described polarity switch carries out the switching of polarity by remote control.
3. adjustable cathodic protection type water heater as claimed in claim 1 or 2; it is characterized in that described external dc power supply is to exchange in the dc source that the dc source convert to, dc source that battery provides or solar panel provide any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110110897XA CN102162682A (en) | 2011-04-29 | 2011-04-29 | Adjustable cathode protective water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110110897XA CN102162682A (en) | 2011-04-29 | 2011-04-29 | Adjustable cathode protective water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102162682A true CN102162682A (en) | 2011-08-24 |
Family
ID=44464032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110110897XA Pending CN102162682A (en) | 2011-04-29 | 2011-04-29 | Adjustable cathode protective water heater |
Country Status (1)
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| CN (1) | CN102162682A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719828A (en) * | 2012-07-02 | 2012-10-10 | 中交四航工程研究院有限公司 | Constant-current intermittent cathodic protection and corrosion acceleration system and implementation method thereof |
| CN103088345A (en) * | 2013-02-28 | 2013-05-08 | 青岛双瑞海洋环境工程股份有限公司 | Propeller antifouling method based on impulse current method |
| CN112815531A (en) * | 2019-11-15 | 2021-05-18 | 青岛海尔智能技术研发有限公司 | Anti-corrosion device for electric water heater and direct current electric water heater |
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| CN2483658Y (en) * | 2001-04-20 | 2002-03-27 | 山东小鸭集团热水器有限公司 | Water storage type water heater with corrosion-resistance by ising cathode protection method |
| CN2623700Y (en) * | 2002-12-13 | 2004-07-07 | 颜民 | Double protection anticorrosion apparatus |
| CN101374977A (en) * | 2005-07-20 | 2009-02-25 | 默洛尼卫生洁具有限公司 | Accumulator water heater with adjustable cathodic protection |
| CN101381130A (en) * | 2008-10-16 | 2009-03-11 | 汪孟金 | Water processor and automatic pole changing circuit thereof |
| CN102022818A (en) * | 2009-09-16 | 2011-04-20 | 欧洲热能应用公司 | Electric storage water heater with double cathodic protection |
| CN202133113U (en) * | 2011-04-29 | 2012-02-01 | 重庆欧凯电器有限公司 | Adjustable cathode protection type water heater |
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2011
- 2011-04-29 CN CN201110110897XA patent/CN102162682A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483658Y (en) * | 2001-04-20 | 2002-03-27 | 山东小鸭集团热水器有限公司 | Water storage type water heater with corrosion-resistance by ising cathode protection method |
| CN2623700Y (en) * | 2002-12-13 | 2004-07-07 | 颜民 | Double protection anticorrosion apparatus |
| CN101374977A (en) * | 2005-07-20 | 2009-02-25 | 默洛尼卫生洁具有限公司 | Accumulator water heater with adjustable cathodic protection |
| CN101381130A (en) * | 2008-10-16 | 2009-03-11 | 汪孟金 | Water processor and automatic pole changing circuit thereof |
| CN102022818A (en) * | 2009-09-16 | 2011-04-20 | 欧洲热能应用公司 | Electric storage water heater with double cathodic protection |
| CN202133113U (en) * | 2011-04-29 | 2012-02-01 | 重庆欧凯电器有限公司 | Adjustable cathode protection type water heater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719828A (en) * | 2012-07-02 | 2012-10-10 | 中交四航工程研究院有限公司 | Constant-current intermittent cathodic protection and corrosion acceleration system and implementation method thereof |
| CN103088345A (en) * | 2013-02-28 | 2013-05-08 | 青岛双瑞海洋环境工程股份有限公司 | Propeller antifouling method based on impulse current method |
| CN103088345B (en) * | 2013-02-28 | 2014-12-17 | 青岛双瑞海洋环境工程股份有限公司 | Propeller antifouling method based on impulse current method |
| CN112815531A (en) * | 2019-11-15 | 2021-05-18 | 青岛海尔智能技术研发有限公司 | Anti-corrosion device for electric water heater and direct current electric water heater |
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Address after: Banqiao Industrial Park 402460 Chongqing County of Rongchang City Applicant after: Chongqing Oukai Electrical Appliances Co., Ltd. Address before: Banqiao Industrial Park 402460 Chongqing County of Rongchang City Applicant before: Chongqing Oukai Electrical Appliances Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CHONGQING OUKAI ELECTRIC APPLIANCE CO., LTD. TO: CHONGQING OUKAI ELECTRICAL APPLIANCE CO., LTD. |
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Application publication date: 20110824 |