The steam turbine is a type of heat engine and one of the most important prime movers for generating electricity and servicing ships and other vehicles. It functions by using the kinetic energy found in steam to produce a force to turn a generator and ultimately create electricity.
A steam turbine takes in part of its kinetic energy from high-temperature and high-pressure steam from different kinds of boilers. It then uses this energy to move the turbine blades, which are attached to the rotor of a generator. As the rotor blades turn, it creates electricity through a series of coils and magnets generating direct current (DC), or alternating current (AC).
Generally, a power plant will contain a boiler and a steam turbine to create electricity. The process is simple, but starts with the generation of steam in the boiler, which requires the use of some kind of fuel. The fuel could be coal, natural gas, or oil, among other possibilities. The fuel is then burned in the boiler, which produces steam at high temperatures and pressure levels.
In the steam turbine, this pressure is then harnessed to drive the turbine blades and generate electricity. To do this, the steam turbine contains several stages, each of which is composed of a set of blades. As the steam passes through these blades, the pressure and momentum of the steam is transferred to the blades and the subsequent stages. The process of steam passing through the blades and transferring its force is known as Impulse. This repeated transfer of force, from one stage of blades to the next, turns the rotor steadily, which creates a rotating force headed to the generator.
After the steam has passed through the turbine, it is then cooled significantly. The process of this steam cooling the turbine is called regenerative power. This is the same process used in some forms of air conditioning. The steam is then condensed into water and then recycled back into the boiler to start the process all over again.
The principle behind the steam turbine is relatively easy to understand. With the pressurized steam passing through the blades, the pressure and momentum transferred to the rotor cause it to rotate continuously and generate electricity through the generator. This process is very efficient, as it can generate large amounts of electricity with a minimal amount of fuel, and has become the basis for modern power plants.
Steam turbines are very reliable and require minimal maintenance. They are also relatively quiet and clean, making them an ideal source of electricity generation. Steam turbines have been in use since the late 19th century, and have become the backbone of most electricity provision in the world.
压力蒸汽轮机是一种热机和用于发电和服务船只和其他车辆的最重要的主动装置之一。它通过利用蒸汽中的动能产生力,转动发电机,最终产生电力。
压力蒸汽轮机从不同类型的锅炉中获得其动能的一部分,即高温高压蒸汽。然后,它利用这种能量来移动安装在发电机转子上的涡轮叶片。随着转子叶片的转动,它通过一系列线圈和磁铁产生直流电或交流电。
通常,发电厂将包含一个锅炉和一个蒸汽轮机来产生电力。这个过程很简单,但首先需要在锅炉中产生蒸汽,这需要使用某种燃料。燃料可以是煤炭、天然气或石油,以及其他可能性。燃料然后在锅炉中燃烧,产生高温高压的蒸汽。
在蒸汽轮机中,这种压力用于驱动涡轮叶片,并产生电力。为此,蒸汽轮机包含多个阶段,每个阶段由一组叶片组成。随着蒸汽通过这些叶片,蒸汽的压力和动量被转移到叶片和后续阶段。蒸汽穿过叶片并传递力量的过程称为脉冲。这种力的重复传递,从一个叶片阶段传到另一个,稳定地转动转子,通过发电机产生旋转力。
蒸汽经过轮机后,它就被大大冷却了。蒸汽冷却轮机的过程称为再生动力。这是一些空调形式使用的同一过程。蒸汽然后被冷凝成水,然后回收到锅炉中重新开始这个过程。
蒸汽轮机的原理相对容易理解。随着压缩的蒸汽穿过叶片,蒸汽的压力和动量被转移到转子上,导致它连续旋转,并通过发电机产生电力。这一过程非常有效,可以使用最少的燃料产生大量的电力,并成为现代发电厂的基础。
压力蒸汽轮机非常可靠,需要最少的维护。它们还相对安静和清洁,使其成为理想的电力发电源。蒸汽轮机自19世纪末就开始使用,并成为世界上大多数电力供应的支柱。