Water-heat-power cogeneration system based on low-temperature multi-effect evaporation technology
A technology of multi-effect evaporation and cogeneration of heat and power, applied in general water supply saving, steam application, steam engine installation, etc., can solve problems such as lack, and achieve the effect of avoiding the reduction of water volume, avoiding the increase of water consumption, and saving consumption
Active Publication Date: 2022-08-05
HUANENG POWER INT INC +2
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Problems solved by technology
[0006] Therefore, the technical problem to be solved by the present invention is to overcome the lack of a device that combines electricity, heat, and water in the prior art and can simultaneously overcome the respective defects of the three, thereby providing a low-temperature multi-effect evaporation technology. water cogeneration system
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[0031] combine figure 1 As shown, the water heat and power cogeneration system based on the low-temperature multi-effect evaporation technology provided by this embodiment includes:
[0032] steam turbine unit;
[0033] The seawater desalination system includes a first steam ejector 1, a multi-effect evaporator group and a fresh water pipeline 4. The driving steam inlet of the first steam ejector 1 is communicated with the steam outlet of the steam turbine unit, and the steam outlet is connected with the steam of the first effect evaporator 2. The inlet is communicated, and the ejected steam inlet is communicated with the steam outlet of the final effect evaporator 3;
[0034] The heating and heating system includes a second steam ejector 5, a steam heater 6 and a peak heater 7. The driving steam inlet of the second steam ejector 5 is communicated with the steam outlet of the steam turbine unit, and the steam outlet is connected with the steam of the steam heater 6. The inle...
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The invention relates to the technical field of water-heat-power cogeneration, in particular to a water-heat-power cogeneration system based on a low-temperature multi-effect evaporation technology. Comprising a steam turbine set, a seawater desalination system and a heating system, the seawater desalination system comprises a first steam ejector, a multi-effect evaporator set and a fresh water pipeline, and the heating system comprises a second steam ejector, a steam heater and a peak heater. Driving steam inlets of the first steam ejector and the second steam ejector are both communicated with a steam outlet of the turboset, ejection steam inlets are both communicated with a steam outlet of the last-effect evaporator, and a steam outlet of the first steam ejector is communicated with a steam inlet of the first-effect evaporator; and a steam outlet of the second steam ejector is communicated with a steam inlet of the steam heater. According to the water-heat-power cogeneration system based on the low-temperature multi-effect evaporation technology, the thermal power generating unit can be applied to fresh water and heat supply, meanwhile, waste heat in steam generated by the last-effect evaporator can be recycled, and the purpose of saving energy is achieved.
Description
technical field [0001] The invention relates to the technical field of water-heat-power co-generation, in particular to a water-heat-power co-generation system based on low-temperature multi-effect evaporation technology. Background technique [0002] With the large-scale grid-connected power generation of renewable energy sources such as wind and solar energy, grid-connected power generation has become the main source of electricity. The traditional thermal power unit has transformed from the main body of electricity to the main body of ensuring the safety of power grid operation, such as peak regulation, frequency regulation, and voltage regulation. At the same time, with the acceleration of urbanization and industrialization, the demand for various forms of energy such as residential heating and fresh water has grown rapidly, which provides a direction for the future development of thermal power units. [0003] Heating is mainly by heating the water coming from the heati...
Claims
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IPC IPC(8): F01K13/00F01K17/02F01K21/00F01D15/10
CPCF01K13/00F01K17/02F01K21/00F01D15/10Y02E20/14Y02A20/124
Inventor 石慧马汀山许朋江刘苗苗王朝阳刘明严俊杰赵永亮
Owner HUANENG POWER INT INC