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Storage-type water heater having tank condition monitoring features

A water heater, condition technology, applied in the field of assessing the condition of water storage tanks, can solve problems such as damage to the inner lining of the water storage tank

Active Publication Date: 2010-08-18
AOS HLDG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This can cause damage to the inner lining of the storage tank

Method used

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  • Storage-type water heater having tank condition monitoring features
  • Storage-type water heater having tank condition monitoring features
  • Storage-type water heater having tank condition monitoring features

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Embodiment Construction

[0020] Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of parts presented in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it should be understood that certain terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "mounted," "connected," "supported," and "coupled" are used broadly and encompass direct and indirect mountings, connections, supports, and couplings. Also, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, and may include...

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Abstract

Methods and systems for evaluating the condition of a water tank having a powered anode protection system. The water heater includes a storage tank to hold water, a powered anode, and a control circuit. The control circuit includes a variable voltage supply, a voltage sensor, and a current sensor. The control circuit is configured to compare a measured parameter to a threshold. In some constructions, the threshold is indicative of a condition of the storage tank at which the powered anode is no longer able to protect the storage tank from corrosion. In other constructions, the threshold is predicative of a potential failure of the storage tank caused by corrosion. In some constructions, the control circuit is configured to estimate a time remaining until the predicted failure of the storage tank.

Description

technical field [0001] This patent application claims the benefit of US Provisional Patent Application Serial No. 60 / 968,424, filed August 28, 2007, which is hereby incorporated by reference in its entirety. [0002] The present invention relates to a storage water heater having an energized anode and a method of using the energized anode to assess the condition of a water storage tank. Background technique [0003] Powered anodes have been used in the water heater industry to prevent corrosion of exposed steel in water storage tanks. In such systems, the anode is typically constructed using a metal such as platinum or titanium, and extends into the water contained in the water storage tank. An electrical current is then applied through the anode to prevent oxidation or corrosion of the exposed steel. In some of these systems, the amount of current required to adequately protect exposed steel is dependent inter alia on the quality and material of the tank lining and the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2007F24H9/0047F24H9/455
Inventor 安德鲁·威廉姆·菲利普斯安德鲁·罗伯特·卡韦斯托马斯·杰勒德·范西斯廷雷·奥利弗·克诺佩尔约翰·马修·舒尔茨
Owner AOS HLDG CO
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