IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0133989
(2002-04-26)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
15 |
초록
▼
A water heater comprising a housing defining a water heating chamber, at least a portion of the housing being metallic, and a metallic heating element disposed in the housing for heating the water, wherein the metallic portion of the housing and a metallic heating element are electrically connected
A water heater comprising a housing defining a water heating chamber, at least a portion of the housing being metallic, and a metallic heating element disposed in the housing for heating the water, wherein the metallic portion of the housing and a metallic heating element are electrically connected such that the metallic portion of the housing is cathodic and the metallic heating element is anodic and current flows from the metallic heating element, through the water, to the metallic portion of the housing. A system for treating water is also disclosed and comprises the water heater and a collector disposed in the housing for collecting solid precipitates deposited from the water. Methods for heating and treated water are also disclosed.
대표청구항
▼
1. A system for treating water comprising:a housing having a water inlet for receiving untreated water and a water outlet for discharging treated water, wherein the housing, at least a portion of which is metallic, comprises a first container defining a water treatment chamber comprising an electric
1. A system for treating water comprising:a housing having a water inlet for receiving untreated water and a water outlet for discharging treated water, wherein the housing, at least a portion of which is metallic, comprises a first container defining a water treatment chamber comprising an electric heating element, and a second container comprising a metallic heat exchanger tube, wherein the electric heating element and the metallic heat exchanger tube are capable of heating the water sufficiently to convert dissolved impurities in the untreated water to solid precipitates; and a collector disposed in the housing for collecting the solid precipitates deposited from the water; wherein the metallic portion of the housing and the metallic heat exchanger tube are electrically connected such that the metallic portion of the housing is cathodic and the metallic heat exchanger tube is anodic due to electrochemical exchange through the water between the metallic portion of the housing and the metallic heat exchanger tube. 2. The system of claim 1, wherein the metallic portion of the housing and the metallic heat exchanger tube are electrically connected with a direct current voltage source.3. The system of claim 1, wherein the metallic portion of the housing and the metallic heat exchanger tube have different surface potentials.4. The system of claim 1, wherein the second container is the metallic portion of the housing.5. The system of claim 1, wherein metallic heat exchanger tube comprises a metal selected from the group consisting of carbon steel, silicon cast iron, silicon cast chromium iron, graphite, and carbon.6. The system of claim 1, wherein metallic heat exchanger tube comprises a metal selected from the group consisting of magnetite, ferrite, and alloys thereof.7. The system of claim 1, wherein metallic heat exchanger tube comprises a metal selected from the group consisting platinum and Mix Metal Oxides.8. The system of claim 1, wherein the electric heating element comprises a metallic surface within the water treatment chamber.9. The system of claim 8, wherein first container further comprises a metallic electrode in a position spaced from the electric heating element within the water treatment chamber.10. The system of claim 9, wherein the metallic electrode and the metallic surface of the electric heating element have different surface potentials.11. The system of claim 9, wherein the metallic electrode and the metallic surface of the electric heating element are electrically connected such that the metallic electrode is cathodic and the metallic surface of the electric heating element is anodic due to electrochemical exchange through the water between the metallic electrode and the metallic surface of the electric heating element.12. A method for treating water comprising:feeding untreated water into a housing through a water inlet in the housing, the housing comprising a first container which defines a water treatment chamber and which comprises an electric heating element, and a second container which comprises a metallic heat exchanger tube, wherein at least a portion of the second container is metallic; heating the untreated water fed into the housing with the electric heating element and the metallic heat exchanger tube to convert dissolved impurities in the untreated water to solid precipitates; electrically connecting the metallic portion of the second container and the metallic heat exchanger tube through the water such that the metallic portion of the second container is cathodic and the metallic heat exchanger tube is anodic; and collecting the solid precipitates deposited from the water onto a collector disposed in the housing. 13. The method of claim 12, wherein the metallic portion of the second container and the metallic heat exchanger tube are electrically connected with a direct current voltage source.14. The method of claim 12, wherein the metallic portion of the second container and the metallic heat exchanger tube have different surface potentials.15. The method of claim 12, wherein metallic heat exchanger tube comprises a metal selected from the group consisting of carbon steel, silicon cast iron, silicon cast chromium iron, graphite, and carbon.16. The method of claim 12, wherein metallic heat exchanger tube comprises a metal selected from the group consisting of magnetite, ferrite, and alloys thereof.17. The method of claim 12, wherein metallic heat exchanger tube comprises a metal selected from the group consisting platinum and Mix Metal Oxides.18. The method of claim 12, wherein the electric heating element comprises a metallic surface within the water treatment chamber.19. The method of claim 18, wherein first container further comprises a metallic electrode in a position spaced from the electric heating element within the water treatment chamber.20. The method of claim 19, wherein the metallic electrode and the metallic surface of the electric heating element have different surface potentials.21. The method of claim 19, wherein the metallic electrode and the metallic surface of the electric heating element are electrically connected such that the metallic electrode is cathodic and the metallic surface of the electric heating element is anodic due to electrochemical exchange through the water between the metallic electrode and the metallic surface of the electric heating element.22. The method of claim 12, wherein the untreated water fed into the housing flows first through the second container exterior of the heating tube, through the first container, and then following removal of the solid precipitates the treated water flows back into the second container interior the heating tube.23. A system for treating water comprising:a housing having a water inlet for receiving untreated water and a water outlet for discharging treated water, wherein the housing, at least a portion of which is metallic, comprises a first container defining a water treatment chamber comprising (i) an electric heating element having a metallic surface, and (ii) a metallic electrode in a position spaced from the electric heating element within the water treatment chamber, and a second container comprising a metallic heat exchanger tube, wherein the electric heating element and the metallic heat exchanger tube are capable of heating the water sufficiently to convert dissolved impurities in the untreated water to solid precipitates; and a collector disposed in the housing for collecting the solid precipitates deposited from the water; wherein the metallic portion of the housing and the metallic heat exchanger tube are electrically connected such that the metallic portion of the housing is cathodic and the metallic heat exchanger tube is anodic due to electrochemical exchange through the water between the metallic portion of the housing and the metallic heat exchanger tube, and wherein the metallic electrode and the metallic surface of the electric heating element are electrically connected such that the metallic electrode is cathodic and the metallic surface of the electric heating element is anodic due to electrochemical exchange through the water between the metallic electrode and the metallic surface of the electric heating element.
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