Control system for monitoring localized corrosion in an industrial water system

A control system and localized corrosion technology, applied in the localized corrosion system and industrial water system field, can solve the problems of slow chemical treatment agent, system recovery, uneconomical consumption of chemicals, etc.

Inactive Publication Date: 2012-01-25
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Third, since both the sensor measurement and the logic used for pitting control are qualitative, it is impossible to determine whether the control action is appropriate
Slow and low dose escalation of chemical treatments may not recover the system from its degradation
Delayed chemical treatment additions may require three or four times more chemicals to bring the system back to its baseline of efficacy, resulting in uneconomical consumption of chemicals

Method used

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  • Control system for monitoring localized corrosion in an industrial water system
  • Control system for monitoring localized corrosion in an industrial water system
  • Control system for monitoring localized corrosion in an industrial water system

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Embodiment Construction

[0019] Approximate language used throughout the specification and claims herein may be used to modify any quantitative representation that may be varied without resulting in a change in the underlying function to which it relates. Accordingly, a value modified by a term or terms, such as "about", is not to be limited to the precise value stated. Approximate language may correspond, in at least some cases, to the precision of the instrument used to determine the value. Range limitations may be combined and / or interchanged, and such ranges are identified and include all the subranges included herein unless context or language indicates otherwise. Except in the working examples or where otherwise indicated, all numbers or expressions referring to amounts of ingredients, reaction conditions, etc. used in the specification and claims are to be understood as being modified in all cases by the term "about".

[0020] As used herein, the terms "comprises," "including," "having," or an...

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Abstract

A control system is disclosed for monitoring and controlling localized corrosion in an industrial water system, comprising: measuring quantitative localized corrosion rate and at least one controllable water chemistry variable; identifying mathematical correlations between the quantitative localized corrosion rate and the at least one controllable water chemistry variable; establishing mathematical correlations between the controllable water chemistry variable and at least one chemical treatment feed; defining an index derived from current and future values of the localized corrosion rate and an index derived from current and future values of the at least one chemical treatment feed; utilizing a processor to minimize the index of the localized corrosion rate and the index of the at least one chemical treatment feed and determine current and future values of the at least one chemical treatment feed; and implementing only a current value of the at least one chemical treatment feed within the water system.

Description

field of invention [0001] The field of the invention involves the accumulation and analysis of real-time data and proactively maximizing localized corrosion inhibition while minimizing water and treatment chemical costs for more effective and efficient industrial water systems. In particular, the present invention relates to systems for monitoring and controlling localized corrosion in industrial water systems such as, but not limited to, cooling water systems, boiler systems, water recovery systems, and water purification systems. Background of the invention [0002] An adequate supply of fresh water is essential for industrial development. Cooling of products and equipment, process needs, boiler feed, and sanitary and potable water supplies all require large quantities of water. It is increasingly evident that freshwater is a precious resource that must be protected through proper management, resource conservation and use. To ensure an adequate supply of high-quality ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00C02F5/08C23F11/08G05B13/04G05B15/02G05B21/02G05B23/02G05D21/02G01N33/18
CPCC02F2303/08G01N17/00G05D21/02C02F2209/06C02F2209/005C02F2103/023
Inventor 万朝阳G·E·盖格G·A·约翰逊B·W·拉休克
Owner GENERAL ELECTRIC CO
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