Test valve offers fast steam trap monitoring

Swagelok unveiled an integrated test valve assembly that allows users to observe condensate removal and monitor steam trap performance.

Monitoring steam trap performance can help reduce costs related to steam and energy loss, reduced heating capacity, and equipment damage.

The integrated test valve assembly consists of two stainless steel Swagelok 63 series general purpose ball valves for isolation and testing and a CF3M Swagelok two-bolt universal mount that offers easy installation of a steam trap.

The integrated test valve offers fast visual monitoring of steam trap performance
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Valves feature oval quarter-turn handles available in locking, non-locking, and latch-locking models and a variety of end connections, including Swagelok tube fitting, and female NPT and female ISO-7/1. There is a choice of three test valve locations: facing towards the steam trap, away from the steam trap or downward.

Allweiler lubrication oil systems for Iran

Germany’s Allweiler will deliver lubrication-oil systems for 22 steam turbines in Iran.

The control panel and the switch cabinet of a finished system
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The turbines are part of a new power plant complex that Siemens will construct in the north Iranian city of Neka during the next three years. The order is worth g7m, making it one of the largest ever received at the pump skid division

Allweiler will deliver all of the lube oil systems needed for the power plant, which will be constructed in Neka. Combined cycle power plants have gas and steam turbines. They utilize the waste heat from the gas turbines to generate steam that powers the steam turbines. As a result, heat that would normally be lost is used to produce additional power, greatly increasing the plant’s overall efficiency. Allweiler will deliver their components complete from their headquarters in Radolfzell, Germany. The lubrication oil modules supply the turbines, the gearing, and the generators with lube oil that is automatically filtered and cooled inside the system.

EA sells HV cable mapping kit to China

EA Technology has sold a system for mapping partial discharge activity in high voltage cables to the Yunnan Electric Power Group, which serves China’s fourth largest province. The equipment identifies the location and magnitude of discharges in underground cables up to 33 kV, providing operators with the information they need to make better decisions on maintenance and replacement.

EA’s cable mapper kit fits into a small van, making it easy to deploy in the field
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It works by applying a very low frequency (VLF) high voltage power supply to lengths of cable. This produces a map of partial discharge activity in joints and insulation, which is displayed on a PC. The captured data can then be used for analysis.

The whole equipment set can be mounted in a small van and is non-destructive, ensuring minimum disruption to the network.

Turbine warming increases flexibility

The concept of Turbine Pressure Warming (TPW) was introduced at Powergen’s Ironbridge Power Station in Shropshire, England, to increase flexibility, reduce start up time by up to ten hours and to extend the life of turbine components.

TPW enables the coal-fired station to operate flexibly and reliably to maximise its contribution to Powergen. The technique reduces the temperature driving force between the steam and metal turbine components during start-ups. This reduces the amount of stress in the metal while the temperature is raised from its shutdown temperature to its MCR value.

Pressure warms are now always used after an off load period of 24 hours or more. The usual hot start procedure is used for periods of less than 24 hours.

The technique allows the situation to begin a cold start and be at full load in six to seven hours.

Westinghouse bags sole source contract from PG&E

Westinghouse Electric’s repair, replacement and automation services (RRAS) unit has won a $14m sole source contract to provide replacement parts and services to PG&E’s Diablo Canyon nuclear power plant.

The contract calls for Westinghouse RRAS to provide two sets of reactor coolant pump internals, hydraulic nuts and studs and full-scope pump and motor change-out filled services. The new equipment will be supplied to support Diablo Canyon’s autumn 2005 and spring 2006 refuelling outages.

Westinghouse will also perform off-site chemical decontamination and rebuild services for the pumps to be removed from the plant.