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What is the purpose of the drain at the bottom of the turbine cylinder? It is used for draining water during the startup and shutdown of the unit to prevent water hammer. In simple terms, hydrostatic condensate refers to water that condenses from steam. The hydrostatic condensate in the inner cylinder of a turbine’s high-pressure section arises when steam comes into contact with metal walls at lower temperatures during startup and shutdown processes. Introducing a certain amount of steam into the inner cylinder of the high-pressure section at the beginning of startup is intended to reduce deformation of the metal components due to thermal stresses, thereby shortening the overall startup time of the unit. If the moisture is not removed, it will cause repeated heating and cooling on the inner surface of the outer cylinder as well as on the outer surface of the inner cylinder of the high-pressure cylinder, which leads to permanent damage to the metal of the high-pressure cylinder; the consequences are severe. Therefore, it is essential to remove the moisture as much as possible. If there is hydrophobic material that cannot be removed, it will cause vibration when the high-pressure cylinder is operated.
It is used for draining water during the startup and shutdown of the unit to prevent water hammer. In simple terms, hydrostatic condensate refers to water that condenses from steam. The hydrostatic condensate in the inner cylinder of a turbine’s high-pressure section arises when steam comes into contact with metal walls at lower temperatures during startup and shutdown processes. Introducing a certain amount of steam into the inner cylinder of the high-pressure section at the beginning of startup is intended to reduce deformation of the metal components due to thermal stresses, thereby shortening the overall startup time of the unit. If the moisture is not removed, it will cause repeated heating and cooling on the inner surface of the outer cylinder as well as on the outer surface of the inner cylinder of the high-pressure cylinder, which leads to permanent damage to the metal of the high-pressure cylinder; the consequences are severe. Therefore, it is essential to remove the moisture as much as possible. If there is hydrophobic material that cannot be removed, it will cause vibration when the high-pressure cylinder is operated.
It is used for draining water during the startup and shutdown of the unit to prevent water hammer.
Since the steam cools down and turns into water immediately when the pipes are warmed up before starting up the turbine, and during the warming-up process after startup, if this condensed water is not removed in time, the high-speed steam flow will carry water droplets into the nozzles, thereby damaging the blades. Therefore, the cylinder drain valve must be opened before starting up to allow the drainage to flow out smoothly.
In simple terms, hydrostatic condensate refers to water that condenses from steam. The hydrostatic condensate in the inner cylinder of a turbine’s high-pressure section arises when steam comes into contact with metal walls at lower temperatures during startup and shutdown processes. Introducing a certain amount of steam into the inner cylinder of the high-pressure section at the beginning of startup is intended to reduce deformation of the metal components due to thermal stresses, thereby shortening the overall startup time of the unit.
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It is used to drain water from the warm-up unit, and also to prevent cavitation caused by the presence of water over a long period of time
It is used for draining water during the startup and shutdown of the unit to prevent water hammer. In simple terms, hydrostatic condensate refers to water that condenses from steam. The hydrostatic condensate in the inner cylinder of a turbine’s high-pressure section arises when steam comes into contact with metal walls at lower temperatures during startup and shutdown processes. Introducing a certain amount of steam into the inner cylinder of the high-pressure section at the beginning of startup is intended to reduce deformation of the metal components due to thermal stresses, thereby shortening the overall startup time of the unit. If the moisture is not removed, it will cause repeated heating and cooling on the inner surface of the outer cylinder as well as on the outer surface of the inner cylinder of the high-pressure cylinder, which leads to permanent damage to the metal of the high-pressure cylinder; the consequences are severe. Therefore, it is essential to remove the moisture as much as possible. If there is hydrophobic material that cannot be removed, it will cause vibration when the high-pressure cylinder is operated.
Since the steam cools down and turns into water immediately when the pipes are warmed up before starting up the turbine, and during the warming-up process after startup, if this condensed water is not removed in time, the high-speed steam flow will carry water droplets into the nozzles, thereby damaging the blades. Therefore, the cylinder drain valve must be opened before starting up to allow the drainage to flow out smoothly.