【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190925
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Question: What are the regulating stage and pressure stage? There are no answers provided for this series of posts; fellow netizens are free to share their own opinions – just reply with what you understand. Replies earn rewards ranging from 5 to 15 points; all forum members are welcome to participate actively and support the development of the forum! ! ! Chemical Equipment and Machinery
When the steam supply to the turbine is regulated by nozzles, the steam inlet area of the high-pressure first stage changes as the load varies; therefore, this first stage is called the regulating stage, while the subsequent stages are referred to as pressure stages.
When the steam supply to the turbine is regulated by nozzles, the steam inlet area of the high-pressure first stage changes as the load varies; therefore, this first stage is called the regulating stage, while the subsequent stages are referred to as pressure stages.
When a turbine is regulated using nozzles, the inlet area of the first stage changes in response to load variations; therefore, the first stage of such a turbine is commonly referred to as the regulating stage, while the other stages are called non-regulating stages or pressure stages.
1. Regulating stage: This refers to the first working stage of the turbine; its flow area can change in response to load variations due to the partial admission of air, which enables regulation, and that is why it is called the regulating stage. 2 Pressure stages: All stages in a turbine other than the regulating stage are collectively referred to as pressure stages.
The most basic working unit of a turbine, which consists of a row of nozzles and a row of rotor blades, is called a turbine stage. When a turbine is regulated using nozzles, the inlet area of the first stage changes in response to variations in load; therefore, the first stage of such a turbine is commonly referred to as the regulating stage. The other stages at all levels are collectively referred to as non-regulating stages or pressure stages. A pressure stage is a stage that relies primarily on a reasonably distributed pressure drop or enthalpy drop within the stage group, and it is either an impulse stage or a reaction stage.
The adjustment level refers to the extent to which the machine adjusts its position, similar to how a car has 5–6 different positions. The pressure level refers to the level of energy absorbed to drive the machine’s rotation and the level of energy it outputs.
Whether the flow area per stage changes with the load level: in multi-stage turbines, the regulating stage refers to the first working stage of the turbine, and its flow area can change as a result of partial admission of air, thereby enabling regulation； The subsequent stages are referred to as pressure stages.
1. Regulating stage: This refers to the first working stage of the turbine; its flow area can change in response to load variations due to the partial admission of air, which enables regulation, and that is why it is called the regulating stage. 2. Pressure stage: All stages in a turbine except the regulating stage are collectively referred to as pressure stages.
Regulating stage: It refers to the first working stage of a steam turbine. Its flow area can change in response to load variations due to the partial introduction of steam, which enables regulation; hence it is called the regulating stage. Pressure stages: All stages in a steam turbine except for the regulation stage are collectively referred to as pressure stages.
When a turbine is regulated using nozzles, the inlet area of the first stage changes in response to load variations; therefore, the first stage of such a turbine is commonly referred to as the regulating stage. The other stages are collectively referred to as non-regulating stages or pressure stages. A pressure stage is a stage that relies primarily on a reasonably distributed pressure drop or enthalpy drop within the stage group, and it is either a single impulse stage or a reaction stage.