Low-pressure steam Rankine cycle power generation system and method thereof

A Rankine cycle, low-pressure steam technology, used in steam generation, steam generation devices, separation methods, etc., to achieve the effects of low temperature, reduced carbon emissions, and improved cycle efficiency

Pending Publication Date: 2020-04-24
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This type of power generation system has not been reported in the industry

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  • Low-pressure steam Rankine cycle power generation system and method thereof

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Embodiment Construction

[0028] Below in conjunction with specific embodiment, further illustrate the present invention.

[0029] figure 1 The schematic diagram of the low-pressure steam Rankine cycle power generation system provided for this embodiment, the low-pressure steam Rankine cycle power generation system includes a water pump 1, a low-temperature regenerator 2, a deaerator 3, a pressure reducer 4, an evaporator 5, a steam A compressor 6, a high temperature regenerator 7, a boiler 8, a steam turbine 9, a generator 10, and a condenser 11 constitute a steam Rankine cycle.

[0030] The outlet of water pump 1 is connected to the inlet of high pressure side of low temperature regenerator 2, the outlet of high pressure side of low temperature regenerator 2 is connected to the inlet of deaerator 3, the outlet of deaerator 3 is connected to the inlet of pressure reducer 4, the outlet of pressure reducer 4 is connected to the inlet of evaporator 5 , the outlet of evaporator 5 is connected to the inle...

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Abstract

The invention provides a low-pressure steam Rankine cycle power generation system and a method thereof. The system comprises a water pump, a low-temperature heat regenerator, a deaerator, a pressure reducer, an evaporator, a steam compressor, a high-temperature heat regenerator, a boiler, a steam turbine, a power generator and a condenser, and a steam Rankine cycle is formed. The parameters of thesteam turbine are low pressure and high temperature, vaporization heat of water is provided by a low-grade heat source, and the boiler further heats the steam to a high-temperature overheating state.The system operates at a low-pressure parameter, and the manufacturing cost of the unit can be greatly reduced; the temperature of a water working medium vaporization heat source is low, and cheap low-temperature solar heat, industrial waste heat, terrestrial heat and the like can be adopted; the steam inlet temperature of the steam turbine is increased to the level of a gas turbine, circulationefficiency can be improved, and good economical efficiency of the unit is guaranteed.

Description

technical field [0001] The invention relates to a low-pressure steam Rankine cycle power generation system and method, belonging to the technical field of thermal power generation. Background technique [0002] Coal-fired power generation is one of the main power supply methods in my country, and it will still occupy the largest share of power generation at present and for a long period of time in the future. In order to meet the requirements of the national energy conservation and emission reduction policy, on the one hand, it is necessary to further improve and enhance the performance of existing coal-fired turbine generator sets, including subcritical, supercritical and ultra-supercritical units; on the other hand, it is necessary to explore new types of steam turbines. generator set. [0003] At present, 700°C advanced ultra-supercritical units are being developed at home and abroad, but due to the high cost of nickel-based high-temperature materials, the unit cost rema...

Claims

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Application Information

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IPC IPC(8): F01K11/02F03G6/00F03G4/00F22D1/32F22D1/50F22B33/18
CPCF01K11/02F03G6/00F03G7/04F22D1/32F22D1/50F22B33/18Y02E10/46Y02P80/20
Inventor 郑开云黄志强
Owner SHANGHAI POWER EQUIP RES INST
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