Steam Turbine Critical Spare Parts

Product Details:

The most important turbine elements are the turbine blades. They are the principal elements that convert pressure energy of working fluid into kinetic energy. Turbine blades are of two basic types: moving blades fixed blades In steam turbines, the steam expands through the fixed blade (nozzle), where the pressure potential energy is converted to kinetic energy. The high-velocity steam from fixed nozzles impacts the moving blades, changes its direction and also expands (in case of reaction type blades). The change in its direction and the steam acceleration (in case of reaction type blades) applies a force. The resulting impulse drives the blades forward, causing the rotor to turn. Steam turbine types based on blade geometry and energy conversion process are: impulse turbine reaction turbine Modern steam turbines frequently employ both reaction and impulse in the same unit, typically varying the degree of reaction and impulse from the blade root to its periphery. The rotor blades are usually designed like an impulse blade at the rot and like a reaction blade at the tip.

Product Details:

Labyrinth packing is sufficient to prevent steam leakage of steam or air in steam turbine .Low pressure steam is supplied to final seats of labyrinths.Labyrinth-type steam seal, also known as labyrinth steam seal, has the following commonly used structural forms: comb-shaped, D-shaped, and fir tree-shaped.

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Diaphragms are a key component to the overall performance of your Steam Turbine, and the degradation of the diaphragms can have a big impact. As little as a 5% deviation of total nozzle area can equate to a significant loss in both Heat Rate and Output of your turbine. If diaphragms are not repaired during the outage, these losses will be not only maintained, but increased throughout the next outage period. EthosEnergy can offer comprehensive inspection and repair recommendations such as: Non-destructive testing Partition area check Major 410 SS partition weld repair Minor Inconel partition weld repair Joint and distortion repairs Restoration of spill strips Restoration of steam face Restoration of inner and outer sidewall Restoration of Inner & outer setback face Restoration of packing & spill strip hook fit Bolt hole repairs Complete diaphragm dishing repair Upgrades and Modifications Diaphragm partial partition replacement Benefits of Diaphragm Repairs: Recover turbine efficiency loss Repairs performed within an outage timeframe Reduced maintenance cost by refurbishing components rather than replacing Structural repairs to joints and seal faces ensure the integrity of the diaphragm until the next outage

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A valve designed to regulate the supply of a fluid (as steam or gas and air) to an engine and operated by a handwheel, a lever, or automatically by a governorespecially : the valve in an internal-combustion engine incorporated in or just outside the carburetor and controlling the volume of vaporized fuel charge delivered to the cylinders

Product Details:

Nozzles are a key component to the overall performance of your Steam Turbine, and the degradation of the diaphragms can have a big impact. As little as a 5% deviation of total nozzle area can equate to a significant loss in both Heat Rate and Output of your turbine. If diaphragms are not repaired during the outage, these losses will be not only maintained, but increased throughout the next outage period. VVK's can offer comprehensive inspection and repair recommendations such as: Non-destructive testing Partition area check Major 410 SS partition weld repair Minor Inconel partition weld repair Joint and distortion repairs Restoration of spill strips Restoration of steam face Restoration of inner and outer sidewall Restoration of Inner & outer setback face Restoration of packing & spill strip hook fit Bolt hole repairs Complete diaphragm dishing repair Upgrades and Modifications Diaphragm partial partition replacement Benefits of Modification/Repairs: Recover turbine efficiency loss Repairs performed within an outage timeframe Reduced maintenance cost by refurbishing components rather than replacing Structural repairs to joints and seal faces ensure the integrity of the diaphragm until the next outag Nozzle is the stator part of turbine means it is fixed part. In impulse turbine we use nozzle and in the nozzle all the pressure energy of fluid converted into kinetic energy so when fluid strikes the blade of the turbine fluid have only kinetic energy. In steam turbine we use convergent- divergent nozzle or C-D nozzle.