Dual-machine regenerative steam extraction steam thermodynamic system

A technology of regenerative steam extraction and thermal system, which is applied in the field of steam turbines, can solve the problems of unstable operation of equipment and high production cost of equipment, and achieve the effects of improving circulation efficiency, reducing heat consumption, and reducing flow loss

Active Publication Date: 2012-10-10
SHANGHAI TURBINE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a dual-machine regenerative steam extraction steam thermal system, which is used to solve the problems of unstable operation of equipment and high production cost of equipment in the prior art.

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  • Dual-machine regenerative steam extraction steam thermodynamic system
  • Dual-machine regenerative steam extraction steam thermodynamic system
  • Dual-machine regenerative steam extraction steam thermodynamic system

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Embodiment Construction

[0036] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0037] It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, so only the components related to the present invention are shown in the drawings rather than the number, shape and Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be ...

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Abstract

The invention provides a dual-machine regenerative steam extraction steam thermodynamic system. In the system, the intermediate stage of a high pressure cylinder of a main steam turbine is provided with a high pressure steam extraction opening, the high pressure steam extraction opening is respectively connected with a steam inlet of a small steam turbine and one high pressure heater with the highest steam inlet parameter in a plurality of high pressure heaters through high pressure steam extraction pipelines, the intermediate stage of the small steam turbine is provided with a plurality of regenerative steam extraction openings which are connected with the rest high pressure heaters except the high pressure heater with the highest steam inlet parameter through regenerative steam extraction pipelines, and a steam exhaust port of the small steam turbine is connected with a deaerator through a steam exhaust pipeline of the small steam turbine. According to the system disclosed by the invention, a high-temperature preposed steam cooler can be omitted, and the feed-water temperature of a boiler is reduced, which helps to improve the efficiency of the boiler and reduce the heat consumption of a machine set; and flow loss can be effectively reduced, the circulation efficiency is improved, and the cost of equipment is reduced.

Description

technical field [0001] The invention relates to the field of steam turbines, in particular to a thermodynamic system using a small steam turbine for extracting steam and recovering heat. Background technique [0002] Electricity is the most basic, cleanest, and most convenient energy source for human society. Due to the current situation of the earth's primary energy sources, the pattern of coal-fired power generation in the electric power industry will not change for a long period of time. Coal-fired power generation produces clean energy and electricity, but also produces a lot of pollution and CO 2 Emissions, CO calculated based on my country's coal-fired power generation in 2011 2 Emissions have exceeded 3 billion tons. In order to protect the environment and save resources, how to improve the efficiency of steam turbines has become an issue that the industry pays more and more attention to. [0003] In order to improve the efficiency of steam turbines, currently stea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K17/02
CPCY02P80/15
Inventor 彭泽瑛程凯史立群王恭义田伟华杨红霞阳虹
Owner SHANGHAI TURBINE
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