Title:
STEAM COMBINED CYCLE HAVING SINGLE WORKING FLUID, AND COMBINED-CYCLE STEAM POWER DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/068430
Kind Code:
A1
Abstract:
The present invention relates to the technical field of energy and power, and particularly relates to a steam combined cycle having a single working fluid, and combined-cycle steam power device. A condenser (6) has a condensate pipeline in communication to a combined evaporator (7) via a circulation pump (4) and a preheater (10). An expander (2) has a steam channel in communication with the combined evaporator (7) via a mid-temperature evaporator (13). The combined evaporator (7) has a steam channel in communication with a compressor (1) and a second expander (3). The compressor (1) has a steam channel in communication with the expander (2) via a high-temperature heat exchanger (5). The second expander (3) has a steam channel in communication with the condenser (6). The condenser (6) has a condensate pipeline in communication with the mid-temperature evaporator (13) via a second circulation pump (9) and a second preheater (17), and then in communication with a third expander (12) and the condenser (6) via a steam channel. The high-temperature heat exchanger (5), mid-temperature evaporator (13), combined evaporator (7), preheater (10), and second preheater (17) all have a heat source medium channel in communication with the exterior, and the condenser (6) has a cooling medium channel in communication with the exterior. The expander (2) is connected to the compressor (1), and transmits power. The expander (2), second expander (3), and third expander (12) are connected to the exterior and output power, thus forming the combined cycle steam power device.
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Inventors:
LI HUAYU (CN)
Application Number:
PCT/CN2017/000611
Publication Date:
April 19, 2018
Filing Date:
September 29, 2017
Export Citation:
Assignee:
LI HUAYU (CN)
International Classes:
F25B7/00; F01K7/44
Foreign References:
| CN103502582A | 2014-01-08 | |||
| CN102032070A | 2011-04-27 | |||
| CN203335151U | 2013-12-11 | |||
| CN102242985A | 2011-11-16 | |||
| CN101906998A | 2010-12-08 | |||
| CN1891981A | 2007-01-10 | |||
| US3795103A | 1974-03-05 |
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