CN115263459A - Combined cycle power plant - Google Patents

Combined cycle power plant Download PDF

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Publication number
CN115263459A
CN115263459A CN202010521806.0A CN202010521806A CN115263459A CN 115263459 A CN115263459 A CN 115263459A CN 202010521806 A CN202010521806 A CN 202010521806A CN 115263459 A CN115263459 A CN 115263459A
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CN
China
Prior art keywords
evaporator
communicated
expander
circulating pump
condenser
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CN202010521806.0A
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Chinese (zh)
Inventor
李鸿瑞
李华玉
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B21/00—Combinations of two or more machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01B23/08—Adaptations for driving, or combinations with, pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention provides a combined cycle power device, and belongs to the technical field of energy and power. The condenser is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through the evaporator and a second evaporator, the mixed evaporator is provided with a low-pressure steam channel which is respectively and directly communicated with the compressor and the condenser through a third expander, the compressor is provided with a steam channel which is communicated with the high-temperature heat exchanger, the condenser is communicated with the evaporator through a second circulating pump, the evaporator is provided with a steam channel which is communicated with the second expander, the second expander is provided with a steam channel which is communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is provided with a steam channel which is communicated with the expander, the condenser is communicated with the second evaporator through the third circulating pump, and the second evaporator is provided with a steam channel which is communicated with the expander through an intermediate steam inlet channel; the high-temperature heat exchanger, the evaporator and the second evaporator are communicated with the outside through a heat source medium channel, the condenser is communicated with the outside through a cooling medium channel, and the expander is connected with the compressor and transmits power to form the combined cycle power device.

Description

Combined cycle power plant
The technical field is as follows:
the invention belongs to the technical field of energy and power.
Background art:
cold demand, heat demand and power demand, which are common in human life and production; among them, the conversion of thermal energy into mechanical energy is an important way to obtain and provide power. In general, the temperature of the heat source decreases with the release of heat, and the heat source is variable. When fossil fuel is used as a source energy source, the heat source has the dual characteristics of high temperature and variable temperature, so that a power device based on single thermodynamic cycle is difficult to convert more heat energy into mechanical energy; for high-quality fuel, high thermal efficiency can be obtained by adopting the traditional gas-steam combined cycle, but the problems of high manufacturing cost, large investment, thermal efficiency to be improved and the like still exist.
Taking an external combustion type steam power device as an example, a heat source of the external combustion type steam power device belongs to a high-temperature and variable-temperature heat source; when Rankine cycle is taken as a theoretical basis and steam is taken as a cycle working medium to realize heat variable power, due to the limitation of temperature resistance, pressure resistance and safety of materials, no matter what parameters are adopted for operation, large temperature difference loss exists between the cycle working medium and a heat source, irreversible loss is large, the heat efficiency is low, and the potential for improving the heat efficiency is very large.
People need to simply, actively, safely and efficiently utilize heat energy to obtain power, and therefore the combined cycle steam power plant has the advantages of high heat efficiency, high safety, adaptability to high-temperature heat sources or variable-temperature heat sources and capability of coping with various fuels.
The invention content is as follows:
the invention mainly aims to provide a combined cycle power device, and the specific contents of the invention are explained in the following sections:
1. the combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a second evaporator, the mixed evaporator is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor and communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with the high-temperature heat exchanger, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through a second circulating pump, then the evaporator is provided with a steam channel which is communicated with the second expander, the second expander is also provided with a steam channel which is communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is also provided with a steam channel which is communicated with the expander, and after the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through a third circulating pump, the second evaporator is provided with a steam channel which is communicated with the expander through a middle steam inlet channel; the high-temperature heat exchanger, the evaporator and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the hybrid evaporator or the heat source medium channel is communicated with the outside, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
2. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a heat supplier; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a second evaporator and a heat supply device, the mixed evaporator is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor and is communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with the high-temperature heat exchanger, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, the evaporator is further provided with a steam channel which is communicated with the second expander, the second expander is further provided with a steam channel which is communicated with the expander, the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through the third circulating pump, and the second evaporator is further provided with a steam channel which is communicated with the expander through a middle steam inlet channel; the high-temperature heat exchanger, the evaporator and the second evaporator are also respectively communicated with the outside through heat source medium channels, the condenser is also communicated with the outside through a cooling medium channel, the hybrid evaporator or the heat source medium channel is also communicated with the outside, the heat supplier is also communicated with the outside through a heated medium channel, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
3. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a second evaporator and an evaporator, the mixed evaporator is also provided with a low-pressure steam channel which is respectively communicated with the compressor and the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with the high-temperature heat exchanger, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, then the evaporator is provided with a steam channel which is communicated with the second expander, the second expander is also provided with a steam channel which is communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is also provided with a steam channel which is communicated with the expander, and the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through the third circulating pump, then the second evaporator is provided with a steam channel which is communicated with the expander through a middle steam inlet channel; the high-temperature heat exchanger and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the evaporator or the heat source medium channel is also communicated with the outside, the mixed evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
4. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser is provided with a condensate pipeline which is communicated with a mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through an evaporator and a second evaporator, the mixed evaporator is also provided with a low-pressure steam channel which is respectively communicated with a compressor directly and communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with a high-temperature heat exchanger, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, then the evaporator is further provided with a steam channel which is communicated with the second expander, the second expander is further provided with a steam channel which is communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is further provided with a steam channel which is communicated with the expander, and the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through the third circulating pump, and then the second evaporator is further provided with a steam channel which is communicated with the expander through a middle steam inlet channel; the high-temperature heat exchanger and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the evaporator or the heat source medium channel is also communicated with the outside, the mixed evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
5. The combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a high-temperature heat regenerator and a second evaporator, the mixed evaporator is also provided with a low-pressure steam channel which is respectively communicated with the compressor directly and communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with the high-temperature heat exchanger through the high-temperature heat regenerator, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, the evaporator is further provided with a steam channel which is communicated with the second expander, the second expander is further provided with a steam channel which is communicated with the expander, the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through the third circulating pump, and the second evaporator is further provided with a steam channel which is communicated with the expander through an intermediate steam inlet channel; the high-temperature heat exchanger, the evaporator and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the hybrid evaporator or the heat source medium channel is communicated with the outside, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
6. The combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator, a heat supply device and a high-temperature heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a high-temperature heat regenerator, a second evaporator and a heat supply device, the mixed evaporator is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor and communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with a high-temperature heat exchanger through the high-temperature heat regenerator, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, the evaporator is further provided with a steam channel which is communicated with the second expander, the second expander is further provided with a steam channel which is communicated with the high-temperature heat exchanger through the high-temperature heat regenerator, the high-temperature heat exchanger is further provided with a steam channel which is communicated with the expander, and the condenser is also provided with the condensate pipeline which is communicated with the second evaporator through the third circulating pump, and the second evaporator is further provided with the steam channel which is communicated with the expander through an intermediate steam channel; the high-temperature heat exchanger, the evaporator and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the hybrid evaporator or the heat source medium channel is also communicated with the outside, the heat supplier is also communicated with the outside through a heated medium channel, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
7. The combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a high-temperature heat regenerator, a second evaporator and an evaporator, the mixed evaporator is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor and communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with a high-temperature heat exchanger through the high-temperature heat regenerator, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, the evaporator is further provided with a steam channel which is communicated with the second expander, the second expander is further provided with a steam channel which is communicated with the high-temperature heat exchanger through the high-temperature heat regenerator, the high-temperature heat exchanger is further provided with a steam channel which is communicated with the expander, and the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through the third circulating pump, and the second evaporator is further provided with the steam channel which is communicated with the expander through an intermediate steam channel; the high-temperature heat exchanger and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the evaporator or the heat source medium channel is also communicated with the outside, the mixed evaporator or the heat source medium channel is also communicated with the outside, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
8. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser is provided with a condensate pipeline which is communicated with the mixed evaporator through a circulating pump, the expander is provided with a low-pressure steam channel which is communicated with the mixed evaporator through a high-temperature heat regenerator, an evaporator and a second evaporator, the mixed evaporator is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor and is communicated with the condenser through a third expander, the compressor is also provided with a steam channel which is communicated with a high-temperature heat exchanger through the high-temperature heat regenerator, the condenser is also provided with a condensate pipeline which is communicated with the evaporator through the second circulating pump, the evaporator is further provided with a steam channel which is communicated with the second expander, the second evaporator is further provided with a steam channel which is communicated with the high-temperature heat exchanger through the high-temperature heat regenerator, the high-temperature heat exchanger is further provided with a steam channel which is communicated with the expander, and the condenser is also provided with a condensate pipeline which is communicated with the second evaporator through the third circulating pump, and the second evaporator is further provided with the steam channel which is communicated with the expander through a middle steam channel; the high-temperature heat exchanger and the second evaporator are also respectively communicated with the outside through a heat source medium channel, the condenser is also communicated with the outside through a cooling medium channel, the evaporator or the heat source medium channel is communicated with the outside, the hybrid evaporator or the heat source medium channel is communicated with the outside, and the expander is connected with the compressor and transmits power to form a combined cycle power device; wherein, or the expander is connected compressor, circulating pump, second circulating pump and third circulating pump and is transmitted power.
9. A combined cycle power device is characterized in that a low-temperature heat regenerator and a fourth circulating pump are added in any one of the combined cycle power devices in items 1 to 8, a condenser is provided with a condensate pipeline which is communicated with an evaporator through the second circulating pump, the condenser is adjusted to be provided with a condensate pipeline which is communicated with the low-temperature heat regenerator through the second circulating pump, a middle steam extraction channel is additionally arranged on a compressor and is communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is provided with a condensate pipeline which is communicated with the evaporator through the fourth circulating pump, so that the combined cycle power device is formed.
10. A combined cycle power plant, in any of the combined cycle power plants described in items 1-9, a newly added heat regenerator and a newly added circulating pump are added, the condenser is adjusted to have a condensate pipeline communicated with a second evaporator through a third circulating pump, the condenser has a condensate pipeline communicated with the newly added heat regenerator through the third circulating pump, the compressor is additionally provided with a middle steam extraction channel communicated with the newly added heat regenerator, the newly added heat regenerator has a condensate pipeline communicated with the second evaporator through the newly added circulating pump, and a combined cycle power plant is formed.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of a combined cycle power plant 1 according to the present invention.
FIG. 2 is a schematic diagram of a 2 nd principle thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 3 is a 3 rd principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 4 is a diagram of a 4 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 5 is a diagram of a 5 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 6 is a 6 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 7 is a 7 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 8 is a diagram of an 8 th principle thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 9 is a diagram of a 9 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 10 is a 10 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
In the figure, 1-expander, 2-second expander, 3-compressor, 4-third expander, 5-circulating pump, 6-second circulating pump, 7-third circulating pump, 8-high temperature heat exchanger, 9-condenser, 10-evaporator, 11-second evaporator, 12-mixed evaporator, 13-heat supplier, 14-high temperature heat regenerator, 15-low temperature heat regenerator, 16-third circulating pump; a-newly adding a heat regenerator, B-newly adding a circulating pump.
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.
The combined cycle power plant shown in fig. 1 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser 9 has a condensate pipeline communicated with a mixed evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixed evaporator 12 through a second evaporator 11, the mixed evaporator 12 also has a low-pressure steam channel which is respectively communicated with the compressor 3 directly and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8, the condenser 9 also has a steam channel communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with the second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a steam channel communicated with the second evaporator 11 through a third circulating pump 7, then the second evaporator 11 has a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through a heat source medium channel, the condenser 9 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the second evaporator 11, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3, is boosted, is heated and then enters the high-temperature heat exchanger 8 to absorb heat and heat, and the second path flows through the third expander 4, is depressurized and does work, then enters the condenser 9, releases heat and is condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, lowers pressure, works, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 passes through the second evaporator 11 to release heat and reduce the temperature, and then enters the mixing evaporator 12 to release heat and reduce the temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 2 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a heat supply device; the condenser 9 has a condensate pipeline communicated with a mixing evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixing evaporator 12 through a second evaporator 11 and a heat supply device 13, the mixing evaporator 12 also has a low-pressure steam channel which is respectively communicated with the compressor 3 directly and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8, the condenser 9 also has a condensate pipeline communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with the second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a condensate pipeline communicated with the second evaporator 11 through a third circulating pump 7, then the second evaporator 11 has a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through a heat source medium channel, the condenser 9 is also communicated with the outside through a cooling medium channel, the heat supplier 13 is also communicated with the outside through a heated medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the heat supply device 13, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3, is boosted, is heated, enters the high-temperature heat exchanger 8, absorbs heat, is heated, and the second path flows through the third expander 4, is depressurized, works, enters the condenser 9, releases heat and is condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, lowers pressure, works, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the second evaporator 11 and the heat supplier 13 to gradually release heat and cool, and then enters the mixing evaporator 12 to release heat and cool; the heat source medium provides driving heat load through a high-temperature heat exchanger 8, an evaporator 10 and a second evaporator 11, the cooling medium takes low-temperature heat load through a condenser 9, the heated medium obtains medium-temperature heat load through a heat supplier 13, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 3 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser 9 has a condensate pipeline communicated with a mixed evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixed evaporator 12 through a second evaporator 11 and an evaporator 10, the mixed evaporator 12 also has a low-pressure steam channel which is respectively communicated with the compressor 3 directly and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8, the condenser 9 also has a condensate pipeline communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with the second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a condensate pipeline communicated with the second evaporator 11 through a third circulating pump 7, then the second evaporator 11 has a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through heat source medium channels, the condenser 9 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the flow, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the evaporator 10, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3, is boosted, is heated, enters the high-temperature heat exchanger 8, absorbs heat and is heated, the second path flows through the third expander 4, is depressurized and does work, and then enters the condenser 9, releases heat and is condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, lowers pressure, works, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the second evaporator 11 and the evaporator 10 to gradually release heat and reduce the temperature, and then enters the mixing evaporator 12 to release heat and reduce the temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 4 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser 9 has a condensate pipeline communicated with a mixed evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixed evaporator 12 through an evaporator 10 and a second evaporator 11, the mixed evaporator 12 also has a low-pressure steam channel which is respectively communicated with the compressor 3 directly and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8, the condenser 9 also has a condensate pipeline communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with a second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a condensate pipeline communicated with the second evaporator 11 through a third circulating pump 7, then the second evaporator 11 has a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through heat source medium channels, the condenser 9 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the second evaporator 11, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3, is boosted, is heated and then enters the high-temperature heat exchanger 8 to absorb heat and heat, and the second path flows through the third expander 4, is depressurized and does work, then enters the condenser 9, releases heat and is condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, is heated, vaporized and overheated, flows through the second expander 2, is reduced in pressure and works, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the evaporator 10 and the second evaporator 11 to gradually release heat and reduce the temperature, and then enters the mixing evaporator 12 to release heat and reduce the temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 5 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser 9 is provided with a condensate pipeline which is communicated with a mixed evaporator 12 through a circulating pump 5, the expander 1 is provided with a low-pressure steam channel which is communicated with the mixed evaporator 12 through a high-temperature regenerator 14 and a second evaporator 11, the mixed evaporator 12 is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor 3 and is communicated with the condenser 9 through a third expander 4, the compressor 3 is also provided with a steam channel which is communicated with a high-temperature heat exchanger 8 through the high-temperature regenerator 14, the condenser 9 is also provided with a steam channel which is communicated with the evaporator 10 through a second circulating pump 6 and then is provided with a steam channel of the evaporator 10 which is communicated with the second expander 2, the second expander 2 is also provided with a steam channel which is communicated with the high-temperature heat exchanger 8 through the high-temperature regenerator 14, the high-temperature heat exchanger 8 is also provided with a steam channel which is communicated with the expander 1, the condenser 9 is also provided with a condensate pipeline which is communicated with the second evaporator 11 through the third circulating pump 7 and then is provided with a steam channel of the second evaporator 11 which is provided with a steam channel which is communicated with the expander 1 through an intermediate steam channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through heat source medium channels, the condenser 9 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the second evaporator 11, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3 to be boosted and heated, and the second path flows through the third expander 4 to be decompressed and work, and then enters the condenser 9 to release heat and be condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, reduces pressure, works, flows through the high-temperature heat regenerator 14, absorbs heat, raises temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; steam discharged by the compressor 3 flows through the high-temperature heat regenerator 14 to absorb heat and raise the temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the high-temperature heat regenerator 14 and the second evaporator 11 to gradually release heat and cool, and then enters the hybrid evaporator 12 to release heat and cool; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 6 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator, a heat supply device and a high-temperature heat regenerator; the condenser 9 has a condensate pipeline communicated with the mixed evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixed evaporator 12 through a high-temperature heat regenerator 14, a second evaporator 11 and a heat supply device 13, the mixed evaporator 12 also has a low-pressure steam channel respectively and directly communicated with the compressor 3 and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8 through the high-temperature heat regenerator 14, the condenser 9 also has a steam channel communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with the second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8 through the high-temperature heat regenerator 14, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a condensate pipeline communicated with the second evaporator 11 through a third circulating pump 7 and then a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are respectively communicated with the outside through a heat source medium channel, the condenser 9 is communicated with the outside through a cooling medium channel, the heat supplier 13 is communicated with the outside through a heated medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the heat supply device 13, the mixture absorbs heat and is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3 to be boosted and heated, the second path flows through the third expander 4 to be decompressed and work, and then enters the condenser 9 to release heat and be condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, is heated, vaporized and overheated, flows through the second expander 2, is decompressed and works, flows through the high-temperature heat regenerator 14, absorbs heat, is heated, and then enters the high-temperature heat exchanger 8 to absorb heat and heat; steam discharged by the compressor 3 flows through the high-temperature heat regenerator 14 to absorb heat and raise the temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the high-temperature heat regenerator 14, the second evaporator 11 and the heat supplier 13 to gradually release heat and cool, and then enters the mixed evaporator 12 to release heat and cool; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes away low-temperature heat load through the condenser 9, the heated medium obtains medium-temperature heat load through the heater 13, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 7 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser 9 has a condensate pipeline communicated with the mixed evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixed evaporator 12 through a high-temperature heat regenerator 14, a second evaporator 11 and an evaporator 10, the mixed evaporator 12 also has a low-pressure steam channel respectively and directly communicated with the compressor 3 and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8 through the high-temperature heat regenerator 14, the condenser 9 also has a steam channel communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with the second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8 through the high-temperature heat regenerator 14, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a condensate pipeline communicated with the second evaporator 11 through a third circulating pump 7, and then the second evaporator 11 has a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through a heat source medium channel, the condenser 9 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the evaporator 10, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3 to be boosted and heated, the second path flows through the third expander 4 to be decompressed and does work, and then enters the condenser 9 to release heat and be condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, reduces pressure, works, flows through the high-temperature heat regenerator 14, absorbs heat, raises temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; steam discharged by the compressor 3 flows through the high-temperature heat regenerator 14 to absorb heat and raise the temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the high-temperature heat regenerator 14, the second evaporator 11 and the evaporator 10 to gradually release heat and reduce the temperature, and then enters the hybrid evaporator 12 to release heat and reduce the temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 8 is implemented as follows:
(1) Structurally, the system mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser 9 has a condensate pipeline communicated with the mixed evaporator 12 through a circulating pump 5, the expander 1 has a low-pressure steam channel communicated with the mixed evaporator 12 through a high-temperature heat regenerator 14, an evaporator 10 and a second evaporator 11, the mixed evaporator 12 also has a low-pressure steam channel respectively and directly communicated with the compressor 3 and communicated with the condenser 9 through a third expander 4, the compressor 3 also has a steam channel communicated with a high-temperature heat exchanger 8 through the high-temperature heat regenerator 14, the condenser 9 also has a steam channel communicated with the evaporator 10 through a second circulating pump 6, then the evaporator 10 has a steam channel communicated with the second expander 2, the second expander 2 also has a steam channel communicated with the high-temperature heat exchanger 8 through the high-temperature heat regenerator 14, the high-temperature heat exchanger 8 also has a steam channel communicated with the expander 1, the condenser 9 also has a condensate pipeline communicated with the second evaporator 11 through a third circulating pump 7, and then the second evaporator 11 has a steam channel communicated with the expander 1 through an intermediate steam inlet channel; the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11 are also respectively communicated with the outside through a heat source medium channel, the condenser 9 is also communicated with the outside through a cooling medium channel, and the expander 1 is connected with the compressor 3 and transmits power.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the second evaporator 11, the mixture absorbs heat, is heated and is vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3 to be boosted and heated, and the second path flows through the third expander 4 to be decompressed and work, and then enters the condenser 9 to release heat and be condensed; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, reduces pressure, works, flows through the high-temperature heat regenerator 14, absorbs heat, raises temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; steam discharged by the compressor 3 flows through the high-temperature heat regenerator 14 to absorb heat and raise the temperature, and then enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 flows through the high-temperature heat regenerator 14, the second evaporator 11 and the evaporator 10 to gradually release heat and reduce the temperature, and then enters the hybrid evaporator 12 to release heat and reduce the temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 9 is implemented as follows:
(1) Structurally, in the combined cycle power plant shown in fig. 1, a low-temperature heat regenerator and a fourth circulating pump are added, a condensate pipeline of a condenser 9 is communicated with an evaporator 10 through a second circulating pump 6 and adjusted to be that the condenser 9 is communicated with the low-temperature heat regenerator 15 through the second circulating pump 6, a middle steam extraction channel of a compressor 3 is additionally arranged and communicated with the low-temperature heat regenerator 15, and the low-temperature heat regenerator 15 is communicated with the evaporator 10 through a condensate pipeline of the fourth circulating pump 16.
(2) In the flow, the first path of condensate of the condenser 9 is boosted by the circulating pump 5 and enters the mixing evaporator 12 to be mixed with the low-pressure steam from the second evaporator 11, the mixture absorbs heat and is heated and vaporized into saturated or superheated steam, then the mixture is divided into two paths, the first path enters the compressor 3 to be boosted and heated, the second path flows through the third expander 4 to be decompressed and work, and then enters the condenser 9 to release heat and be condensed; the low-pressure steam entering the compressor 3 is subjected to pressure rise and temperature rise to a certain degree and then is divided into two paths, wherein the first path enters the low-temperature heat regenerator 15 through the middle steam extraction channel to release heat and condense, the second path is subjected to pressure rise and temperature rise continuously, and the steam discharged by the compressor 3 enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; a second path of condensate of the condenser 9 is boosted by a second circulating pump 6 and enters a low-temperature heat regenerator 15, the second path of condensate is mixed with the extracted steam from the compressor 3 to absorb heat and raise the temperature, and the extracted steam is mixed with the condensate to release heat and condense; the condensate of the low-temperature heat regenerator 15 is boosted by a fourth circulating pump 16 and enters the evaporator 10, absorbs heat, is heated, vaporized and overheated, flows through the second expander 2, is reduced in pressure and works, and then enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters an expander 1 through a middle steam inlet channel to reduce pressure and do work, and steam discharged by a high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; low-pressure steam discharged by the expander 1 passes through the second evaporator 11 to release heat and reduce temperature, and then enters the mixing evaporator 12 to release heat and reduce temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 10 is implemented as follows:
(1) Structurally, in the combined cycle power plant shown in fig. 1, a newly added heat regenerator and a newly added circulating pump are added, a condensate pipeline of a condenser 9 is communicated with a second evaporator 11 through a third circulating pump 7 and adjusted to be that the condenser 9 is communicated with the newly added heat regenerator A through the third circulating pump 7, a middle steam extraction channel is additionally arranged on a compressor 3 and is communicated with the newly added heat regenerator A, and the newly added heat regenerator A is communicated with the second evaporator 11 through a condensate pipeline of a newly added circulating pump B.
(2) In the process, the first path of condensate of the condenser 9 is boosted by the circulating pump 5, enters the mixing evaporator 12, is mixed with the low-pressure steam from the second evaporator 11, absorbs heat, raises the temperature and is vaporized into saturated or superheated steam, and then is divided into two paths, namely the first path enters the compressor 3, and the second path enters the condenser 9 to release heat and condense after flowing through the third expansion machine 4 to reduce the pressure and do work; the low-pressure steam entering the compressor 3 is subjected to pressure rise and temperature rise to a certain degree and then is divided into two paths, wherein the first path enters the newly-added heat regenerator A through the middle steam extraction channel to release heat and condense, the second path is subjected to pressure rise and temperature rise continuously, and the steam discharged by the compressor 3 enters the high-temperature heat exchanger 8 to absorb heat and raise the temperature; the second path of condensate of the condenser 9 is boosted by the second circulating pump 6 and enters the evaporator 10, absorbs heat, raises temperature, vaporizes and overheats, flows through the second expander 2, lowers pressure, works, and then enters the high-temperature heat exchanger 8 to absorb heat and raise temperature; the third path of condensate of the condenser 9 is boosted by a third circulating pump 7 and enters a newly-added heat regenerator A, and is mixed with the extracted steam from the compressor 3 to absorb heat and raise the temperature, and the extracted steam is mixed with the condensate to release heat and condense; the condensate of the newly added heat exchanger A is boosted by the newly added circulating pump B and enters the second evaporator 11 to absorb heat, raise temperature, vaporize and overheat, then enters the expander 1 through the middle steam inlet channel to reduce pressure and do work, and the steam discharged by the high-temperature heat exchanger 8 enters the expander 1 to reduce pressure and do work; the low-pressure steam discharged by the expander 1 passes through the second evaporator 11 to release heat and reduce the temperature, and then enters the mixing evaporator 12 to release heat and reduce the temperature; the heat source medium provides driving heat load through the high-temperature heat exchanger 8, the evaporator 10 and the second evaporator 11, the cooling medium takes low-temperature heat load through the condenser 9, and the expander 1, the second expander 2 and the third expander 4 provide power for the compressor 3 and the outside to form a combined cycle power device.
The effect that the technology of the invention can realize-the combined cycle power device provided by the invention has the following effects and advantages:
(1) The cycle fluid finishes high-temperature heat absorption under low pressure, the temperature difference loss between the cycle fluid and a high-temperature heat source is small, and the heat efficiency of a system and the safety of the device are improved.
(2) The cycle working medium mainly depends on the condensation phase change process to realize low-temperature heat release, the temperature difference loss between the cycle working medium and the environment is controllable, and the heat efficiency is improved.
(3) The low-pressure high-temperature operation mode is adopted in the high-temperature area, the contradiction that the heat efficiency, the circulating medium parameters and the pressure and temperature resistance of the pipe are difficult to reconcile in the traditional steam power device is solved, so that the temperature difference loss between a heat source and the circulating medium can be greatly reduced, and the heat efficiency is greatly improved.
(4) The bottom circulation is carried out in a grading way, which is beneficial to reducing the irreversible loss of temperature difference and providing the heat efficiency of the device.
(5) The equipment is shared, the heat absorption process of bottom circulation-Rankine cycle is increased, and the heat efficiency of the device is improved.
(6) And a single working medium is adopted, so that the operation cost is reduced, and the adjustment flexibility of the thermal power device is improved.
(7) The common high-temperature expansion machine reduces the number of core equipment, and is beneficial to reducing the system investment and improving the thermal efficiency of the device.
(8) The device can effectively deal with high-temperature heat sources and variable-temperature heat sources, high-quality fuels and non-high-quality fuels, and has a wide application range.
(9) On the premise of realizing high thermal efficiency, low-pressure operation can be selected, so that the operation safety of the device is greatly improved.
(10) The heat recovery of the enterprise device can be simply, actively, safely and efficiently realized.
(11) The heat efficiency can be effectively improved by applying the heat exchanger to the lower end of the gas-steam combined cycle.
(12) When the device is applied to a coal-fired thermodynamic system, the original advantage of the traditional steam power cycle, namely water vapor is taken as a working medium, and the working parameter range is wide; according to the actual condition, the working in the subcritical, critical, supercritical or ultra supercritical state can be selected.

Claims (10)

1. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser (9) is provided with a condensate pipeline which is communicated with a mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a second evaporator (11), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor (3) and communicated with the condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is also provided with a steam channel which is communicated with the second expander (2), the second expander (2) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the high-temperature heat exchanger (8) is also provided with the expander (1), the condenser (9) is also provided with a condensate pipeline which is communicated with the second evaporator (11) through a middle steam channel which is communicated with the expander (1) after the condensate pipeline is also communicated with the second evaporator (11) through a third circulating pump (7); the high-temperature heat exchanger (8), the evaporator (10) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the hybrid evaporator (12) or the heat source medium channel is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
2. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a heat supplier; the condenser (9) is provided with a condensate pipeline which is communicated with the mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a second evaporator (11) and a heat supply device (13), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor (3) and communicated with the condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is also provided with a steam channel which is communicated with the second expander (2), the second expander (2) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the high-temperature heat exchanger (8) is also provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with a middle steam channel which is communicated with the expander (1) after being communicated with the second evaporator (11) through a third circulating pump (7); the high-temperature heat exchanger (8), the evaporator (10) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the mixing evaporator (12) or the heat source medium channel is communicated with the outside, the heat supply device (13) is also communicated with the outside through a heated medium channel, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
3. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser (9) is provided with a condensate pipeline which is communicated with the mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a second evaporator (11) and an evaporator (10), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor (3) and communicated with the condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is provided with a steam channel which is communicated with the second expander (2), the second expander (2) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the high-temperature heat exchanger (8) is also provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with a middle steam channel which is communicated with the expander (1) through a middle steam channel; the high-temperature heat exchanger (8) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the evaporator (10) or the heat source medium channel is communicated with the outside, the hybrid evaporator (12) or the heat source medium channel is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
4. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator and a mixed evaporator; the condenser (9) is provided with a condensate pipeline which is communicated with the mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through an evaporator (10) and a second evaporator (11), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively communicated with the compressor (3) and the condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is provided with a steam channel which is communicated with the second expander (2), the second expander (2) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8), the high-temperature heat exchanger (8) is also provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with the steam inlet channel of the second evaporator (11) through a middle evaporator (1) after being communicated with the second evaporator (11) through a third circulating pump (7); the high-temperature heat exchanger (8) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the evaporator (10) or the heat source medium channel is communicated with the outside, the hybrid evaporator (12) or the heat source medium channel is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or expander (1) connects compressor (3), circulating pump (5), second circulating pump (6) and third circulating pump (7) and transmits power.
5. The combined cycle power device mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser (9) is provided with a condensate pipeline which is communicated with a mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a high-temperature heat regenerator (14) and a second evaporator (11), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively and directly communicated with the compressor (3) and communicated with the condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is also provided with a steam channel which is communicated with the second expander (2), the second expander (2) is also provided with a steam channel which is communicated with the high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the high-temperature heat exchanger (8) is also provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with a middle steam inlet channel of the second evaporator (11) through the third circulating pump (7); the high-temperature heat exchanger (8), the evaporator (10) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the hybrid evaporator (12) or the heat source medium channel is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
6. The combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator, a heat supply device and a high-temperature heat regenerator; the condenser (9) is provided with a condensate pipeline which is communicated with a mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a high-temperature heat regenerator (14), a second evaporator (11) and a heat supply device (13), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively communicated with a compressor (3) directly and communicated with a condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is also provided with a steam channel which is communicated with a second expander (2), the second expander (2) is also provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the high-temperature heat exchanger (8) is also provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with a middle steam inlet channel of the second evaporator (11) through the third evaporator (7); the high-temperature heat exchanger (8), the evaporator (10) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the mixing evaporator (12) or the heat source medium channel is communicated with the outside, the heat supply device (13) is also communicated with the outside through a heated medium channel, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
7. The combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser (9) is provided with a condensate pipeline which is communicated with a mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a high-temperature heat regenerator (14), a second evaporator (11) and an evaporator (10), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively communicated with a compressor (3) directly and communicated with a condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), the evaporator (10) is also provided with a steam channel which is communicated with a second expander (2), the second expander (2) is also provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the high-temperature heat exchanger (8) is also provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with a middle steam inlet channel of the second evaporator (11) through the third evaporator (7) and the circulating pump (11); the high-temperature heat exchanger (8) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the evaporator (10) or the heat source medium channel is communicated with the outside, the hybrid evaporator (12) or the heat source medium channel is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
8. The combined cycle power plant mainly comprises an expander, a second expander, a compressor, a third expander, a circulating pump, a second circulating pump, a third circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, a second evaporator, a mixed evaporator and a high-temperature heat regenerator; the condenser (9) is provided with a condensate pipeline which is communicated with a mixed evaporator (12) through a circulating pump (5), the expander (1) is provided with a low-pressure steam channel which is communicated with the mixed evaporator (12) through a high-temperature heat regenerator (14), an evaporator (10) and a second evaporator (11), the mixed evaporator (12) is also provided with a low-pressure steam channel which is respectively communicated with a compressor (3) and a condenser (9) through a third expander (4), the compressor (3) is also provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the condenser (9) is also provided with a condensate pipeline which is communicated with the evaporator (10) through a second circulating pump (6), then the evaporator (10) is further provided with a steam channel which is communicated with a second expander (2), the second expander (2) is further provided with a steam channel which is communicated with a high-temperature heat exchanger (8) through the high-temperature heat regenerator (14), the high-temperature heat exchanger (8) is further provided with a steam channel which is communicated with the expander (1), and the condenser (9) is also provided with a condensate pipeline which is communicated with a middle steam inlet channel of the second evaporator (11) through the third circulating pump (7); the high-temperature heat exchanger (8) and the second evaporator (11) are also respectively communicated with the outside through a heat source medium channel, the condenser (9) is also communicated with the outside through a cooling medium channel, the evaporator (10) or the heat source medium channel is communicated with the outside, the hybrid evaporator (12) or the heat source medium channel is communicated with the outside, and the expander (1) is connected with the compressor (3) and transmits power to form a combined cycle power device; wherein, or the expander (1) is connected with the compressor (3), the circulating pump (5), the second circulating pump (6) and the third circulating pump (7) and transmits power.
9. A combined cycle power device is characterized in that a low-temperature heat regenerator and a fourth circulating pump are added in any combined cycle power device of claims 1-8, a condenser (9) is provided with a condensate pipeline which is communicated with an evaporator (10) through a second circulating pump (6) and is adjusted to be that the condenser (9) is provided with a condensate pipeline which is communicated with a low-temperature heat regenerator (15) through the second circulating pump (6), a middle steam extraction channel is additionally arranged on a compressor (3) and is communicated with the low-temperature heat regenerator (15), and the low-temperature heat regenerator (15) is provided with a condensate pipeline which is communicated with the evaporator (10) through the fourth circulating pump (16) to form the combined cycle power device.
10. A combined cycle power device is characterized in that in any combined cycle power device of claims 1-9, a newly added heat regenerator and a newly added circulating pump are added, a condenser (9) is communicated with a second evaporator (11) through a third circulating pump (7) and adjusted to be a condenser (9) which is communicated with a newly added heat regenerator (A) through a third circulating pump (7), a middle steam extraction channel is additionally arranged on a compressor (3) and communicated with the newly added heat regenerator (A), and a condensate pipeline of the newly added heat regenerator (A) is communicated with the second evaporator (11) through a newly added circulating pump (B), so that the combined cycle power device is formed.
CN202010521806.0A 2019-06-05 2020-06-03 Combined cycle power plant Pending CN115263459A (en)

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CN2019105203293 2019-06-05
CN201910520329 2019-06-05

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