sludge lancing system for steam generator

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Steam generator replacement overview - Power …

Steam generator replacement overview particularly when the secondary-loop water contains impurities or particles that lodge in crevices or create sludge or when the water is excessively basic

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Steam Generator Services - Westinghouse Nuclear

Steam Generator Services. Since the company's inception in 1886, innovation has been a cornerstone of Westinghouse Electric Company. It's no surprise, then, that Westinghouse was the first vendor to bring revolutionary steam generator technologies, such as suitcase eddy current, alternate repair criteria, sleeving, auto analysis and soft chemical cleaning, to market.

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Reducing Deposits in Steam Generators - EPRI

2009-5-11 · or mechanical sludge lancing using high-pressure water jets. These approaches are often effective, but can be costly and carry risks related to extended outages or incomplete cleaning. An alternative approach is to inject dispersants, which prevent corrosion products from depositing on steam generator surfaces so they can be removed via blowdown.

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NPDES PERMIT issued to - US EPA

2012-2-29 · occur at your site assuming that: the cooling water system has been designed as a once-through system; the opening of the cooling water intake structure is located at, and the face of the standard 3/8-inch mesh traveling screen is oriented parallel to, …

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Volume 3 - Canada

2016-3-9 · Steam Generator Services RANGER A New Approach to Steam Generator NDE AREVA offers an innovative approach to steam generator non-destructive examination (NDE). RANGER performs various types of steam generator tube inspection and repair. The manipulator features an enhanced design that enables quick and easy installation, requiring only one person.

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Improvements in PWR steam generator sludge lancing

Room reservation. TIB Conti-Campus: group study rooms with whiteboards; TIB Conti-Campus: parent-child workroom; TIB Conti-Campus: dual workstations

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US Patent for Steam generator sludge lancing method …

A method for removing sludge that may be deposited on a tubesheet of a steam generator comprises placement of fluid headers at the elevation of the sludge to be removed establishing a circumferential fluid stream at that elevation. A fluid lance is moved along the line between the headers emitting a pulsating fluid jet perpendicular to a line of movement of the fluid lance at an elevation

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Improvements in PWR steam generator sludge lancing

Room reservation. TIB Conti-Campus: group study rooms with whiteboards; TIB Conti-Campus: parent-child workroom; TIB Conti-Campus: dual workstations

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CECIL (Consolidated Edison Combined By

2015-11-2 · These issues require a need for a system that can access the tube bundle interior, remove sludge without damaging tubes, identify and remove foreign objects, and at the same time reduce personnel exposure to radiation. _____ CECIL (Consolidated Edison Combined Inspection and Lancing) is a robotic steam generator maintenance system developed

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Modular Sludge Lancing Equipment for Mushroom …

A b s t r a c t Periodic sludge lancing enhances steam generator life by mitigating corrosion between its tubes and tube sheet. The present modular sludge lancing equipment has been designed to

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'Steam Generator Water Hammer Technical Evaluation.'

2013-6-10 · the feedwater system (steam generator water hammer) during normal and hypothesized operating conditions. The steam-water slugging phenomenon in the feedwater system (specifically, the feedrings and associated horizontal feedwater piping) was considered in this review. A known steam generator water hammer has not occurred at the KPS, or at

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The Future of Nuclear Energy in South Africa - CPLO

2016-10-12 · The Future of Nuclear Energy in South Africa S h a n e P e r e i r a –22nd M a y 2 1 0 5. Koeberg circa 1980 Current: Steam Generator Replacement • Replacement of 6 Steam Generators Sludge Lancing, Eddy Current and Visual

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Steam Generator Mechanical Cleaning Hard and Soft …

The effectiveness of the sludge lancing process can be increased by applying upper bundle flushing resulting in a higher total amount of removed deposits. For optimized hard sludge removal of hard deposit accumulated of longer periods of time we provide a combined mechanical and chemical cleaning solution.

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Nuclear Steam Generator Chemical Cleaning …

As the nuclear industry moves through the 1990s, many utilities are concerned with their future operation. Many are discovering unexpected problems with excessive secondary side deposits' propagating intergranular attack and other corrosion mechanisms that lead to steam generator tube degradation and eventual tube retirement.

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KKS__

2018-6-26 · water and residues removal system incl. Neutralization Sludge thickening system LW LY Secondary-side steam generator tubesheet lancing system Steam

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Steam Generator Services - BWX Technologies, Inc. …

BWX Technologies, Inc. (BWXT) understands the degradation of steam generator and heat exchanger tubing, both mechanical and corrosion modes, which has resulted in extensive repairs and replacements around the world. The variety of degradation modes challenges the integrity of tubing and, therefore, the stations' reliability.

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DEVELOPMENT OF A STEAM GENERATOR LANCING …

The research to develop a lancing system that would remove sludge deposits from the tubesheet of a steam generator was started in 1998 by the Korea Electric Power Research Institute (KEPRI) of the

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Nuclear steam generator sludge lancing method and

1989-7-18 · The general object of this invention is to provide a steam generator sludge lancing method and apparatus which is particularly efficient in removing sludge deposits from the tube sheet and tubes of a nuclear steam generator of the type having two lance ports and two inspection ports, wherein adjacent ports are spaced 90° apart.

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CECIL (Consolidated Edison Combined By

2015-11-2 · These issues require a need for a system that can access the tube bundle interior, remove sludge without damaging tubes, identify and remove foreign objects, and at the same time reduce personnel exposure to radiation. _____ CECIL (Consolidated Edison Combined Inspection and Lancing) is a robotic steam generator maintenance system developed

Learn More

Volume 3 - Canada

2016-3-9 · Steam Generator Services RANGER A New Approach to Steam Generator NDE AREVA offers an innovative approach to steam generator non-destructive examination (NDE). RANGER performs various types of steam generator tube inspection and repair. The manipulator features an enhanced design that enables quick and easy installation, requiring only one person.

Learn More