Double-effect steam turbine power generation system

A power generation system and steam turbine technology, which is applied to steam engine devices, machines/engines, mechanical equipment, etc., can solve the problems of increased system energy consumption and large heat energy loss, and achieve the effects of reducing heat energy loss, reducing heat energy loss, and reducing energy consumption

Pending Publication Date: 2022-08-09
XIAN THERMAL POWER RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the thermal energy loss in the steam turbine powe

Method used

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  • Double-effect steam turbine power generation system

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Embodiment

[0032] like figure 1 A dual-effect steam turbine power generation system provided in this embodiment is shown, including: a first circulation pipeline and a second circulation pipeline that are coupled to each other for heat exchange.

[0033] The first circulation pipeline includes a boiler, a steam turbine unit, a condenser 5, a condensate water pump, a multi-stage low-pressure heater 7, a deaerator 8, a feed water pump 9 and a multi-stage high-pressure heater 10 that are circulated and communicated as an evaporator 11. . The second circulation pipeline includes a high-pressure turbine as the first turbine 16, a reheater 12, a low-pressure turbine as the second turbine 17, a condenser body 13, a compressor 14, and a heater in cyclic communication. device body 15. At least one stage low pressure heater 7 and at least one stage high pressure heater 10 are arranged in parallel with the liquid side of the condenser body 13; between the low pressure heater 7 and the steam turbi...

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Abstract

The invention relates to the technical field of thermal power generation, in particular to a double-effect steam turbine power generation system which comprises a first circulation pipeline, a second circulation pipeline, a third circulation pipeline and a fourth circulation pipeline. The second circulating pipeline comprises a first turbine, a reheater, a second turbine, a condenser body, a compressor and a heater body which are in circulating communication; the at least one-stage low-pressure heater and the at least one-stage high-pressure heater are arranged in parallel with the liquid side of the condenser body; the steam turbine set is communicated with a steam pipeline, the hot side of the heater body is installed on the steam pipeline in series, and the hot side of the reheater is installed on at least one steam pipeline communicated with the high-pressure heater in series. The first circulating pipeline and the second circulating pipeline are subjected to coupling heat exchange, so that the temperature of a backflow medium output from the high-pressure heater can be increased, the backheating steam extraction superheat degree is reduced, the heat exchange loss is reduced, and the energy consumption of a turbine unit power generation system is reduced.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to a double-effect steam turbine power generation system. Background technique [0002] Coal-fired power generating units consume a large amount of coal resources and cause environmental pollution while providing large-scale power security. Therefore, the efficient and clean operation of coal-fired units can not only save valuable coal resources, improve energy conversion and utilization efficiency, reduce the energy cost of thermal power companies, but also improve environmental quality and reduce pollution emissions. [0003] As the core part of the steam turbine, the performance of the thermal system has a direct impact on the energy consumption, efficiency, and emissions of the steam turbine. In the thermal system of the steam turbine unit in the prior art, the steam turbine unit is driven to rotate through the steam cycle, thereby driving the generator to outp...

Claims

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Application Information

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IPC IPC(8): F01K23/04F01K25/10F01K7/40F01K7/44F01K7/22F01K3/26F01K9/02F01K11/02F01D15/10
CPCF01K23/04F01K25/103F01K7/40F01K7/44F01K7/22F01K3/262F01K9/02F01K11/02F01D15/10
Inventor 薛朝囡许朋江居文平颜世刚陈锋段周朝吕凯张建元
Owner XIAN THERMAL POWER RES INST CO LTD
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