CN111379606A - Combined cycle power plant - Google Patents

Combined cycle power plant Download PDF

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Publication number
CN111379606A
CN111379606A CN202010101620.XA CN202010101620A CN111379606A CN 111379606 A CN111379606 A CN 111379606A CN 202010101620 A CN202010101620 A CN 202010101620A CN 111379606 A CN111379606 A CN 111379606A
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China
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communicated
evaporator
speed increaser
expansion speed
condenser
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CN202010101620.XA
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Chinese (zh)
Inventor
李鸿瑞
李华玉
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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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/08—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
    • 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
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (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 expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a pressure-expanding pipe, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with the second pressure-expanding pipe through the evaporator, and the second pressure-expanding pipe is also provided with a circulating medium channel communicated with the second expansion speed increaser through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a 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:
the heat energy is converted into mechanical energy which is needed by human life and production; in the field of power demand technology, the conversion of thermal energy into mechanical energy is an important way to provide power. In the case of non-high-quality fuel, a non-direct-combustion combined cycle power device is adopted to realize high heat power change efficiency; in such a combined cycle power plant, the expander, the compressor, the booster pump and the heat exchanger are essential basic components and core components, wherein the three components of the expander, the compressor and the booster pump have high manufacturing difficulty, high requirements on materials and high manufacturing cost, which have adverse effects on the application thereof; at the same time, these three components are also associated with energy production or utilization. In a traditional combined cycle power device, when the used energy of a compressor is output from the mechanical energy of an expander, the configuration of the associated expander and the associated compressor is not simplified, the energy conversion link is not simplified, and the heat power-changing efficiency is influenced; the energy consumption of the booster pump is completely provided by mechanical energy or electric energy, so that the configuration of the related expansion machine and the booster pump is not simplified, the energy conversion link is not simplified, and the heat power conversion efficiency is influenced. The method aims to simplify the components, reduce or simplify the energy conversion link, reduce the manufacturing difficulty and the manufacturing cost of the combined cycle power device and improve the application range and the economical efficiency of the combined cycle power device.
The invention provides a combined cycle power device which adopts one or more simplified measures, namely, an expansion speed increaser is used for replacing an expansion machine, a diffuser pipe or a dual-energy compressor is used for replacing a compressor, and the diffuser pipe or the dual-energy booster pump is used for replacing a booster pump.
The invention content is as follows:
the invention mainly aims to provide a combined cycle power device which adopts one or more simplified measures, namely an expansion speed increaser to realize a gas pressure reduction and expansion process, a diffuser pipe or a dual-energy compressor to realize a gas pressure increase and temperature increase process, and a diffuser pipe or a dual-energy booster pump to realize a condensate liquid pressure increase process, and the specific invention contents are explained in sections as follows:
1. the combined cycle power plant mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe and a high-temperature heat exchanger; the expander is provided with a steam channel which is communicated with the condenser through a spray pipe, the condenser is also provided with a condensate liquid pipeline which is communicated with the evaporator through a diffusion pipe, the evaporator is also provided with a steam channel which is communicated with the expander, the second expander is provided with a circulating medium channel which is communicated with the second diffusion pipe through a second spray pipe and the evaporator, and the second diffusion pipe is also provided with a circulating medium channel which is communicated with the second expander through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device.
2. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a second diffuser pipe, a high-temperature heat exchanger, an expansion speed increaser and a second expansion speed increaser; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a pressure-expanding pipe, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with the second pressure-expanding pipe through the evaporator, and the second pressure-expanding pipe is also provided with a circulating medium channel communicated with the second expansion speed increaser through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device.
3. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a second diffuser pipe, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a heat regenerator; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a pressure expansion pipe, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with the second pressure expansion pipe through the heat regenerator and the evaporator, and the second pressure expansion pipe is also provided with a circulating medium channel communicated with the second expansion speed increaser through the heat regenerator and the high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device.
4. The combined cycle power plant mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe, a high-temperature heat exchanger and a booster pump; the expander is provided with a steam channel communicated with the condenser through a spray pipe, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a diffusion pipe and a booster pump, the evaporator is also provided with a steam channel communicated with the expander, the second expander is provided with a circulating medium channel communicated with the second diffusion pipe through a second spray pipe and the evaporator, and the second diffusion pipe is also provided with a circulating medium channel communicated with the second expander through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device; wherein, or the expander is connected with the booster pump and transmits power.
5. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a dual-energy booster pump; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate pipeline communicated with the evaporator through a dual-energy booster pump, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with a pressure-expanding pipe through the evaporator, and the pressure-expanding pipe is also provided with a circulating medium channel communicated with the second expansion speed increaser through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device; wherein, or the expansion speed increaser is connected with the double-energy booster pump and transmits power.
6. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator and a dual-energy booster pump; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a dual-energy booster pump, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with a diffuser pipe through a heat regenerator and the evaporator, and the diffuser pipe is also provided with a circulating medium channel communicated with the second expansion speed increaser through the heat regenerator and a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device; wherein, or the expansion speed increaser is connected with the double-energy booster pump and transmits power.
7. The combined cycle power plant mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe, a high-temperature heat exchanger and a compressor; the expander is provided with a steam channel which is communicated with the condenser through a spray pipe, the condenser is also provided with a condensate liquid pipeline which is communicated with the evaporator through a diffusion pipe, the evaporator is also provided with a steam channel which is communicated with the expander, the second expander is provided with a circulating medium channel which is communicated with the compressor through a second spray pipe, the evaporator and a second diffusion pipe, and the compressor is also provided with a circulating medium channel which is communicated with the second expander through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the second expander is connected with the compressor and transmits power to form a combined cycle power device.
8. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a dual-energy compressor; the expansion speed increaser is provided with a steam channel which is communicated with the condenser, the condenser is also provided with a condensate liquid pipeline which is communicated with the evaporator through a diffuser pipe, the evaporator is also provided with a steam channel which is communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel which is communicated with the dual-energy compressor through the evaporator, and the dual-energy compressor is also provided with a circulating medium channel which is communicated with the second expansion speed increaser through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser is connected with the dual-energy compressor and transmits power to form a combined cycle power device.
9. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator and a dual-energy compressor; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a diffuser pipe, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with the dual-energy compressor through the heat regenerator and the evaporator, and the dual-energy compressor is also provided with a circulating medium channel communicated with the second expansion speed increaser through the heat regenerator and the high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser is connected with the dual-energy compressor and transmits power to form a combined cycle power device.
10. The combined cycle power device mainly comprises a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a dual-energy booster pump and a dual-energy compressor; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate pipeline communicated with the evaporator through a dual-energy booster pump, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with the dual-energy compressor through the evaporator, and the dual-energy compressor is also provided with a circulating medium channel communicated with the second expansion speed increaser through a high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser is connected with the dual-energy compressor and transmits power to form a combined cycle power device; wherein, or the expansion speed increaser is connected with the double-energy booster pump and transmits power.
11. The combined cycle power device mainly comprises a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator, a dual-energy booster pump and a dual-energy compressor; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a dual-energy booster pump, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, the second expansion speed increaser is provided with a circulating medium channel communicated with the dual-energy compressor through a heat regenerator and the evaporator, and the dual-energy compressor is also provided with a circulating medium channel communicated with the second expansion speed increaser through the heat regenerator and the high-temperature heat exchanger; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser is connected with the dual-energy compressor and transmits power to form a combined cycle power device; wherein, or the expansion speed increaser is connected with the double-energy booster pump and transmits power.
12. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, an expansion speed increaser, a second expansion speed increaser and a dual-energy compressor; the expansion speed increaser is provided with a steam channel communicated with the condenser, the condenser is also provided with a condensate liquid pipeline communicated with the evaporator through a diffuser pipe, the evaporator is also provided with a steam channel communicated with the expansion speed increaser, a heat source medium channel is arranged outside the expansion speed increaser and communicated with the second expansion speed increaser, the second expansion speed increaser is also provided with a heat source medium channel communicated with the dual-energy compressor through the evaporator, and the dual-energy compressor is also provided with a heat source medium channel communicated with the outside; the condenser is also provided with a cooling medium channel communicated with the outside, the evaporator or a heat source medium channel is also communicated with the outside, and the second expansion speed increaser is connected with the dual-energy compressor and transmits power to form a combined cycle power device.
Description of the drawings:
FIG. 1 is a schematic 1 st thermodynamic system diagram of a combined cycle power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of the 2 nd principle of a combined cycle power plant provided in accordance with the present invention.
FIG. 3 is a schematic thermodynamic system diagram of the 3 rd principle 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.
FIG. 11 is a diagram of a principal 11 thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 12 is a 12 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
In the figure, 1-expander, 2-spray pipe, 3-diffuser pipe, 4-condenser, 5-evaporator, 6-second expander, 7-second spray pipe, 8-second diffuser pipe, 9-high temperature heat exchanger, 10-expansion speed increaser, 11-second expansion speed increaser, 12-heat regenerator, 13-booster pump, 14-dual-energy booster pump, 15-compressor and 16-dual-energy compressor.
In order to clearly understand the spirit and scope of the present invention, the following description is given:
(1) the expansion speed increaser-a device which can realize the double functions of pressure reduction work and pressure reduction speed increaser under a certain pressure reduction is a combination of the expansion machine and a spray pipe, or a combination of the spray pipe and a turbine, or other devices with the same function.
(2) The dual-energy compressor, an apparatus for increasing gas pressure by using external mechanical energy and fluid kinetic energy, is a combination of a compressor and a diffuser pipe, or other apparatuses with the same function.
(3) The double-energy booster pump, a device for increasing the pressure of liquid by using external mechanical energy and the kinetic energy of fluid, is a combination of the booster pump and a diffuser pipe, or other devices with the same function.
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 heat exchanger mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe and a high-temperature heat exchanger; the expander 1 is provided with a steam channel which is communicated with a condenser 4 through a spray pipe 2, the condenser 4 is also provided with a condensate liquid pipeline which is communicated with an evaporator 5 through a diffuser pipe 3, the evaporator 5 is also provided with a steam channel which is communicated with the expander 1, the second expander 6 is provided with a circulating medium channel which is communicated with a second diffuser pipe 8 through a second spray pipe 7 and the evaporator 5, and the second diffuser pipe 8 is also provided with a circulating medium channel which is communicated with the second expander 6 through a high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, and the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium and then is vaporized, the saturated or superheated steam released by the evaporator 5 flows through the expansion machine 1 to reduce the pressure and do work, flows through the spray pipe 2 to reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; the circulating medium discharged by the second expander 6 flows through the second spray pipe 7, is depressurized and accelerated, flows through the evaporator 5 and releases heat, flows through the second diffuser pipe 8, is pressurized, heated and decelerated, flows through the high-temperature heat exchanger 9 and absorbs heat, and then enters the second expander 6 to be depressurized and do work; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, and the work output by the expander 1 and the second expander 6 is provided externally to form a combined cycle power device.
The combined cycle power plant shown in fig. 2 is implemented as follows:
(1) structurally, the high-temperature heat exchanger mainly comprises a diffuser pipe, a condenser, an evaporator, a second diffuser pipe, a high-temperature heat exchanger, an expansion speed increaser and a second expansion speed increaser; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate liquid pipeline communicated with the evaporator 5 through a pressure-expanding pipe 3, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel communicated with the second pressure-expanding pipe 8 through the evaporator 5, and the second pressure-expanding pipe 8 is also provided with a circulating medium channel communicated with the second expansion speed increaser 11 through a high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, and the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium and then vaporize, the saturated or superheated steam released by the evaporator 5 flows through the expansion speed increaser 10 to reduce the pressure and do work and reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; the circulating medium discharged by the second expansion speed increasing machine 11 flows through the evaporator 5 and releases heat, flows through the second diffuser pipe 8 to increase the pressure and increase the temperature and reduce the speed, flows through the high-temperature heat exchanger 9 to absorb heat, and then enters the second expansion speed increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, and the work output by the expansion speed increaser 10 and the second expansion speed increaser 11 is provided externally 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 a diffuser pipe, a condenser, an evaporator, a second diffuser pipe, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a heat regenerator; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate liquid pipeline communicated with the evaporator 5 through a diffuser pipe 3, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel communicated with the second diffuser pipe 8 through a heat regenerator 12 and the evaporator 5, and the second diffuser pipe 8 is also provided with a circulating medium channel communicated with the second expansion speed increaser 11 through the heat regenerator 12 and a high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, and the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium and then vaporize, the saturated or superheated steam released by the evaporator 5 flows through the expansion speed increaser 10 to reduce the pressure and do work and reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; the circulating medium discharged by the second expansion speed-increasing machine 11 flows through the heat regenerator 12 and the evaporator 5 and gradually releases heat, flows through the second diffuser pipe 8 to increase the pressure and increase the temperature and reduce the speed, flows through the heat regenerator 12 and the high-temperature heat exchanger 9 and gradually absorbs heat, and then enters the second expansion speed-increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, and the work output by the expansion speed increaser 10 and the second expansion speed increaser 11 is provided externally 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 spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe, a high-temperature heat exchanger and a booster pump; the expander 1 is provided with a steam channel which is communicated with the condenser 4 through a spray pipe 2, the condenser 4 is also provided with a condensate pipeline which is communicated with the evaporator 5 through a diffuser pipe 3 and a booster pump 13, the evaporator 5 is also provided with a steam channel which is communicated with the expander 1, the second expander 6 is provided with a circulating medium channel which is communicated with a second diffuser pipe 8 through a second spray pipe 7 and the evaporator 5, and the second diffuser pipe 8 is also provided with a circulating medium channel which is communicated with the second expander 6 through a high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, and the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, flows through the booster pump 13 to obtain work and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium to be vaporized, the saturated or superheated steam released by the evaporator 5 flows through the expansion machine 1 to reduce the pressure and do work, flows through the spray pipe 2 to reduce the pressure and increase the speed, and then enters the condenser 4 to release heat and condense; the circulating medium discharged by the second expander 6 flows through the second spray pipe 7, is depressurized and accelerated, flows through the evaporator 5 and releases heat, flows through the second diffuser pipe 8, is pressurized, heated and decelerated, flows through the high-temperature heat exchanger 9 and absorbs heat, and then enters the second expander 6 to be depressurized and do work; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, and the work output by the expander 1 and the second expander 6 is provided externally or simultaneously to the booster pump 13 to form the combined cycle power device.
The combined cycle power plant shown in fig. 5 is implemented as follows:
(1) structurally, the system mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a dual-energy booster pump; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate pipeline communicated with the evaporator 5 through a dual-energy booster pump 14, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel communicated with the diffuser pipe 3 through the evaporator 5, and the diffuser pipe 3 is also provided with a circulating medium channel communicated with the second expansion speed increaser 11 through a high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, and the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel.
(2) In the process, the condensate of the condenser 4 is boosted and decelerated through the dual-energy booster pump 14, then enters the evaporator 5, is vaporized after absorbing the heat load provided by the circulating medium and the heat source medium, the saturated or superheated steam released by the evaporator 5 is decompressed and does work and is decompressed and accelerated through the expansion speed increaser 10, and then enters the condenser 4 to release heat and be condensed; the circulating medium discharged by the second expansion speed increasing machine 11 flows through the evaporator 5 and releases heat, flows through the diffuser pipe 3 to increase the pressure and increase the temperature and reduce the speed, flows through the high-temperature heat exchanger 9 to absorb heat, and then enters the second expansion speed increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, and the work output by the expansion speed increaser 10 and the second expansion speed increaser 11 is provided externally or simultaneously to the double-energy booster pump 14, so that the combined cycle power device is formed.
The combined cycle power plant shown in fig. 6 is implemented as follows:
(1) structurally, the system mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator and a dual-energy booster pump; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate pipeline communicated with the evaporator 5 through a dual-energy booster pump 14, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel communicated with the diffuser pipe 3 through a heat regenerator 12 and the evaporator 5, and the diffuser pipe 3 is also provided with a circulating medium channel communicated with the second expansion speed increaser 11 through the heat regenerator 12 and the high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, and the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel.
(2) In the process, the condensate of the condenser 4 is boosted and decelerated through the dual-energy booster pump 14, then enters the evaporator 5, is vaporized after absorbing the heat load provided by the circulating medium and the heat source medium, the saturated or superheated steam released by the evaporator 5 is decompressed and does work and is decompressed and accelerated through the expansion speed increaser 10, and then enters the condenser 4 to release heat and be condensed; the circulating medium discharged by the second expansion speed-increasing machine 11 flows through the heat regenerator 12 and the evaporator 5 and gradually releases heat, flows through the diffuser pipe 3 to increase the pressure and increase the temperature and reduce the speed, flows through the heat regenerator 12 and the high-temperature heat exchanger 9 and gradually absorbs heat, and then enters the second expansion speed-increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, and the work output by the expansion speed increaser 10 and the second expansion speed increaser 11 is provided externally or simultaneously to the double-energy booster pump 14, so that the combined cycle power device is formed.
The combined cycle power plant shown in fig. 7 is implemented as follows:
(1) structurally, the heat exchanger mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe, a high-temperature heat exchanger and a compressor; the expander 1 is provided with a steam channel which is communicated with a condenser 4 through a spray pipe 2, the condenser 4 is also provided with a condensate liquid pipeline which is communicated with an evaporator 5 through a diffuser pipe 3, the evaporator 5 is also provided with a steam channel which is communicated with the expander 1, the second expander 6 is provided with a circulating medium channel which is communicated with a compressor 15 through a second spray pipe 7, the evaporator 5 and a second diffuser pipe 8, and the compressor 15 is also provided with a circulating medium channel which is communicated with the second expander 6 through a high-temperature heat exchanger 9; the condenser 4 is also communicated with the outside through a cooling medium channel, the evaporator 5 is also communicated with the outside through a heat source medium channel, the high-temperature heat exchanger 9 is also communicated with the outside through a heat source medium channel, and the second expander 6 is connected with the compressor 15 and transmits power.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium and then is vaporized, the saturated or superheated steam released by the evaporator 5 flows through the expansion machine 1 to reduce the pressure and do work, flows through the spray pipe 2 to reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; the circulating medium discharged by the second expander 6 flows through the second spray pipe 7, is depressurized and accelerated, flows through the evaporator 5 and releases heat, flows through the second diffuser pipe 8, is pressurized, heated and decelerated, flows through the compressor 15, is pressurized, heated, flows through the high-temperature heat exchanger 9 and absorbs heat, and then enters the second expander 6 to be depressurized and do work; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, the work output by the second expander 6 is provided for the compressor 15 as power and is provided outwards at the same time, and the work output by the expander 1 is provided outwards to form a combined cycle power device.
The combined cycle power plant shown in fig. 8 is implemented as follows:
(1) structurally, the expansion and compression type compressor mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a dual-energy compressor; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate pipeline communicated with the evaporator 5 through a diffuser pipe 3, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel communicated with the dual-energy compressor 16 through the evaporator 5, and the dual-energy compressor 16 is also provided with a circulating medium channel communicated with the second expansion speed increaser 11 through the high-temperature heat exchanger 9; the condenser 4 is also provided with a cooling medium channel communicated with the outside, the evaporator 5 is also provided with a heat source medium channel communicated with the outside, the high-temperature heat exchanger 9 is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser 11 is connected with the dual-energy compressor 16 and transmits power.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium and then vaporize, the saturated or superheated steam released by the evaporator 5 flows through the expansion speed increaser 10 to reduce the pressure and do work and reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; the circulating medium discharged by the second expansion speed increasing machine 11 flows through the evaporator 5 and releases heat, flows through the dual-energy compressor 16 to increase the pressure and increase the temperature and reduce the speed, flows through the high-temperature heat exchanger 9 to absorb heat, and then enters the second expansion speed increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, the work output by the second expansion speed increaser 11 is provided for the dual-energy compressor 16 as power and is provided outwards at the same time, and the work output by the expansion speed increaser 10 is provided outwards to form a combined cycle power device.
The combined cycle power plant shown in fig. 9 is implemented as follows:
(1) structurally, the system mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator and a dual-energy compressor; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate liquid pipeline communicated with the evaporator 5 through a diffuser pipe 3, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel communicated with the dual-energy compressor 16 through the heat regenerator 12 and the evaporator 5, and the dual-energy compressor 16 is also provided with a circulating medium channel communicated with the second expansion speed increaser 11 through the heat regenerator 12 and the high-temperature heat exchanger 9; the condenser 4 is also provided with a cooling medium channel communicated with the outside, the evaporator 5 is also provided with a heat source medium channel communicated with the outside, the high-temperature heat exchanger 9 is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser 11 is connected with the dual-energy compressor 16 and transmits power.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5 to absorb the heat load provided by the circulating medium and the heat source medium and then vaporize, the saturated or superheated steam released by the evaporator 5 flows through the expansion speed increaser 10 to reduce the pressure and do work and reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; the circulating medium discharged by the second expansion speed-increasing machine 11 flows through the heat regenerator 12 and the evaporator 5 and gradually releases heat, flows through the dual-energy compressor 16 to increase the pressure and increase the temperature and reduce the speed, flows through the heat regenerator 12 and the high-temperature heat exchanger 9 and gradually absorbs heat, and then enters the second expansion speed-increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, the work output by the second expansion speed increaser 11 is provided for the dual-energy compressor 16 as power and is provided outwards at the same time, and the work output by the expansion speed increaser 10 is provided outwards to form a combined cycle power device.
The combined cycle power plant shown in fig. 10 is implemented as follows:
(1) structurally, the system mainly comprises a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a dual-energy booster pump and a dual-energy compressor; the expansion speed increaser 10 is provided with a steam channel to be communicated with the condenser 4, the condenser 4 is also provided with a condensate pipeline to be communicated with the evaporator 5 through a dual-energy booster pump 14, the evaporator 5 is also provided with a steam channel to be communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel to be communicated with the dual-energy compressor 16 through the evaporator 5, and the dual-energy compressor 16 is also provided with a circulating medium channel to be communicated with the second expansion speed increaser 11 through a high-temperature heat exchanger 9; the condenser 4 is also provided with a cooling medium channel communicated with the outside, the evaporator 5 is also provided with a heat source medium channel communicated with the outside, the high-temperature heat exchanger 9 is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser 11 is connected with the dual-energy compressor 16 and transmits power.
(2) In the process, the condensate of the condenser 4 is boosted and decelerated through the dual-energy booster pump 14, then enters the evaporator 5, is vaporized after absorbing the heat load provided by the circulating medium and the heat source medium, the saturated or superheated steam released by the evaporator 5 is decompressed and does work and is decompressed and accelerated through the expansion speed increaser 10, and then enters the condenser 4 to release heat and be condensed; the circulating medium discharged by the second expansion speed increasing machine 11 flows through the evaporator 5 and releases heat, flows through the dual-energy compressor 16 to increase the pressure and increase the temperature and reduce the speed, flows through the high-temperature heat exchanger 9 to absorb heat, and then enters the second expansion speed increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, the work output by the second expansion speed increaser 11 is provided for the dual-energy compressor 16 as power and is provided for the outside at the same time, and the work output by the expansion speed increaser 10 is provided for the outside or is provided for the dual-energy booster pump 14 at the same time, so that the combined cycle power device is formed.
The combined cycle power plant shown in FIG. 11 is implemented as follows:
(1) structurally, the system mainly comprises a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator, a dual-energy booster pump and a dual-energy compressor; the expansion speed increaser 10 is provided with a steam channel which is communicated with the condenser 4, the condenser 4 is also provided with a condensate pipeline which is communicated with the evaporator 5 through a dual-energy booster pump 14, the evaporator 5 is also provided with a steam channel which is communicated with the expansion speed increaser 10, the second expansion speed increaser 11 is provided with a circulating medium channel which is communicated with the dual-energy compressor 16 through the heat regenerator 12 and the evaporator 5, and the dual-energy compressor 16 is also provided with a circulating medium channel which is communicated with the second expansion speed increaser 11 through the heat regenerator 12 and the high-temperature heat exchanger 9; the condenser 4 is also provided with a cooling medium channel communicated with the outside, the evaporator 5 is also provided with a heat source medium channel communicated with the outside, the high-temperature heat exchanger 9 is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser 11 is connected with the dual-energy compressor 16 and transmits power.
(2) In the process, the condensate of the condenser 4 is boosted and decelerated through the dual-energy booster pump 14, then enters the evaporator 5, is vaporized after absorbing the heat load provided by the circulating medium and the heat source medium, the saturated or superheated steam released by the evaporator 5 is decompressed and does work and is decompressed and accelerated through the expansion speed increaser 10, and then enters the condenser 4 to release heat and be condensed; the circulating medium discharged by the second expansion speed-increasing machine 11 flows through the heat regenerator 12 and the evaporator 5 and gradually releases heat, flows through the dual-energy compressor 16 to increase the pressure and increase the temperature and reduce the speed, flows through the heat regenerator 12 and the high-temperature heat exchanger 9 and gradually absorbs heat, and then enters the second expansion speed-increasing machine 11 to reduce the pressure and do work and reduce the pressure and increase the speed; the heat source medium provides driving heat load through the high-temperature heat exchanger 9 and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, the work output by the second expansion speed increaser 11 is provided for the dual-energy compressor 16 as power and is provided for the outside at the same time, and the work output by the expansion speed increaser 10 is provided for the outside or is provided for the dual-energy booster pump 14 at the same time, so that the combined cycle power device is formed.
The combined cycle power plant shown in fig. 12 is implemented as follows:
(1) structurally, the double-energy compressor mainly comprises a diffuser pipe, a condenser, an evaporator, an expansion speed increaser, a second expansion speed increaser and a double-energy compressor; the expansion speed increaser 10 is provided with a steam channel communicated with the condenser 4, the condenser 4 is also provided with a condensate liquid pipeline communicated with the evaporator 5 through a diffuser pipe 3, the evaporator 5 is also provided with a steam channel communicated with the expansion speed increaser 10, a heat source medium channel is arranged outside and communicated with the second expansion speed increaser 11, the second expansion speed increaser 11 is also provided with a heat source medium channel communicated with the dual-energy compressor 16 through the evaporator 5, and the dual-energy compressor 16 is also provided with a heat source medium channel communicated with the outside; the condenser 4 is also provided with a cooling medium channel communicated with the outside, the evaporator 5 is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser 11 is connected with the dual-energy compressor 16 and transmits power.
(2) In the process, the condensate of the condenser 4 flows through the diffuser pipe 3 to reduce the speed and increase the pressure, then enters the evaporator 5, is vaporized after absorbing the heat load provided by two paths of heat source media, and the saturated or superheated steam released by the evaporator 5 flows through the expansion speed increaser 10 to reduce the pressure and do work and reduce the pressure and increase the speed, and then enters the condenser 4 to release the heat and condense; an external heat source medium flows through the second expansion speed increaser 11 to reduce pressure, do work and increase speed, flows through the evaporator 5 to release heat, flows through the dual-energy compressor 16 to increase pressure, increase temperature and reduce speed, and is discharged outwards; the heat source medium provides driving heat load through the inlet and outlet flow and the evaporator 5, the cooling medium takes away low-temperature heat load through the condenser 4, the work output by the second expansion speed increasing machine 11 is provided for the dual-energy compressor 16 as power and is provided outwards at the same time, and the work output by the expansion speed increasing machine 10 is provided outwards, so that a combined cycle power device is formed.
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 diffuser pipe realizes the pressure boosting process of the circulating medium, and greatly reduces the manufacturing difficulty and cost of the combined cycle power device.
(2) The dual-energy compressor realizes the boosting process of the circulating medium, and flexibly and effectively reduces the manufacturing difficulty and cost of the combined cycle power device.
(3) The expansion speed increaser realizes the decompression and expansion process of the circulating medium, and flexibly and effectively reduces the manufacturing difficulty and cost of the combined cycle power device.
(4) The expansion speed increaser realizes the steam pressure reduction and expansion process, and flexibly and effectively reduces the manufacturing difficulty and cost of the combined cycle power device.
(5) The diffuser pipe realizes the condensate boosting process, and effectively reduces the manufacturing difficulty and cost of the combined cycle power device.
(6) The dual-energy booster pump realizes the boosting process of the condensate, and flexibly and effectively reduces the manufacturing difficulty and cost of the combined cycle power device.
(7) The energy conversion and transmission links are reduced, and the heat power change efficiency of the combined cycle power device is improved.
(8) The simple components replace complex components, and the heat power change efficiency of the combined cycle power device is kept or improved.
(9) The complex parts are replaced by simple parts and simplified, which is beneficial to improving the safety and service life of the dynamic parts.
(10) A plurality of specific technical schemes are provided, and the device can be used for coping with a plurality of different actual conditions and has a wider application range.
(11) The combined cycle power plant technology is expanded, the types of the combined cycle power plants are enriched, the conversion of heat energy into mechanical energy is favorably realized, and the application range of the combined cycle power plants is expanded.

Claims (12)

1. The combined cycle power plant mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe and a high-temperature heat exchanger; the expansion machine (1) is provided with a steam channel which is communicated with the condenser (4) through a spray pipe (2), the condenser (4) is also provided with a condensate liquid pipeline which is communicated with the evaporator (5) through a diffuser pipe (3), the evaporator (5) is also provided with a steam channel which is communicated with the expansion machine (1), the second expansion machine (6) is provided with a circulating medium channel which is communicated with the second diffuser pipe (8) through a second spray pipe (7) and the evaporator (5), and the second diffuser pipe (8) is also provided with a circulating medium channel which is communicated with the second expansion machine (6) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device.
2. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a second diffuser pipe, a high-temperature heat exchanger, an expansion speed increaser and a second expansion speed increaser; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a pressure-expanding pipe (3), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the second pressure-expanding pipe (8) through the evaporator (5), and the second pressure-expanding pipe (8) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device.
3. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a second diffuser pipe, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a heat regenerator; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a pressure-expanding pipe (3), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the second pressure-expanding pipe (8) through a heat regenerator (12) and the evaporator (5), and the second pressure-expanding pipe (8) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through the heat regenerator (12) and a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device.
4. The combined cycle power plant mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe, a high-temperature heat exchanger and a booster pump; the expansion machine (1) is provided with a steam channel which is communicated with the condenser (4) through a spray pipe (2), the condenser (4) is also provided with a condensate pipeline which is communicated with the evaporator (5) through a diffuser pipe (3) and a booster pump (13), the evaporator (5) is also provided with a steam channel which is communicated with the expansion machine (1), the second expansion machine (6) is provided with a circulating medium channel which is communicated with a second diffuser pipe (8) through a second spray pipe (7) and the evaporator (5), and the second diffuser pipe (8) is also provided with a circulating medium channel which is communicated with the second expansion machine (6) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device; wherein, or the expander (1) is connected with the booster pump (13) and transmits power.
5. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a dual-energy booster pump; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a dual-energy booster pump (14), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the diffuser pipe (3) through the evaporator (5), and the diffuser pipe (3) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device; wherein, or the expansion speed increaser (10) is connected with the double-energy booster pump (14) and transmits power.
6. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator and a dual-energy booster pump; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a dual-energy booster pump (14), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the diffuser pipe (3) through the heat regenerator (12) and the evaporator (5), and the diffuser pipe (3) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through the heat regenerator (12) and the high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside to form a combined cycle power device; wherein, or the expansion speed increaser (10) is connected with the double-energy booster pump (14) and transmits power.
7. The combined cycle power plant mainly comprises an expander, a spray pipe, a diffuser pipe, a condenser, an evaporator, a second expander, a second spray pipe, a second diffuser pipe, a high-temperature heat exchanger and a compressor; the expansion machine (1) is provided with a steam channel which is communicated with the condenser (4) through a spray pipe (2), the condenser (4) is also provided with a condensate liquid pipeline which is communicated with the evaporator (5) through a diffuser pipe (3), the evaporator (5) is also provided with a steam channel which is communicated with the expansion machine (1), the second expansion machine (6) is provided with a circulating medium channel which is communicated with the compressor (15) through a second spray pipe (7), the evaporator (5) and a second diffuser pipe (8), and the compressor (15) is also provided with a circulating medium channel which is communicated with the second expansion machine (6) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside, and the second expander (6) is connected with the compressor (15) and transmits power to form a combined cycle power device.
8. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser and a dual-energy compressor; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a diffuser pipe (3), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the dual-energy compressor (16) through the evaporator (5), and the dual-energy compressor (16) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser (11) is connected with the dual-energy compressor (16) and transmits power to form a combined cycle power device.
9. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator and a dual-energy compressor; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a diffuser pipe (3), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the dual-energy compressor (16) through the heat regenerator (12) and the evaporator (5), and the dual-energy compressor (16) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through the heat regenerator (12) and the high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser (11) is connected with the dual-energy compressor (16) and transmits power to form a combined cycle power device.
10. The combined cycle power device mainly comprises a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a dual-energy booster pump and a dual-energy compressor; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a dual-energy booster pump (14), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with a dual-energy compressor (16) through the evaporator (5), and the dual-energy compressor (16) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser (11) is connected with the dual-energy compressor (16) and transmits power to form a combined cycle power device; wherein, or the expansion speed increaser (10) is connected with the double-energy booster pump (14) and transmits power.
11. The combined cycle power device mainly comprises a condenser, an evaporator, a high-temperature heat exchanger, an expansion speed increaser, a second expansion speed increaser, a heat regenerator, a dual-energy booster pump and a dual-energy compressor; the expansion speed increaser (10) is provided with a steam channel to be communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline to be communicated with the evaporator (5) through a dual-energy booster pump (14), the evaporator (5) is also provided with a steam channel to be communicated with the expansion speed increaser (10), the second expansion speed increaser (11) is provided with a circulating medium channel to be communicated with the dual-energy compressor (16) through a heat regenerator (12) and the evaporator (5), and the dual-energy compressor (16) is also provided with a circulating medium channel to be communicated with the second expansion speed increaser (11) through the heat regenerator (12) and a high-temperature heat exchanger (9); the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, the high-temperature heat exchanger (9) is also provided with a heat source medium channel communicated with the outside, and the second expansion speed increaser (11) is connected with the dual-energy compressor (16) and transmits power to form a combined cycle power device; wherein, or the expansion speed increaser (10) is connected with the double-energy booster pump (14) and transmits power.
12. The combined cycle power device mainly comprises a diffuser pipe, a condenser, an evaporator, an expansion speed increaser, a second expansion speed increaser and a dual-energy compressor; the expansion speed increasing machine (10) is provided with a steam channel communicated with the condenser (4), the condenser (4) is also provided with a condensate liquid pipeline communicated with the evaporator (5) through a diffuser pipe (3), the evaporator (5) is also provided with a steam channel communicated with the expansion speed increasing machine (10), a heat source medium channel is arranged outside and communicated with the second expansion speed increasing machine (11), the second expansion speed increasing machine (11) is also provided with a heat source medium channel communicated with the dual-energy compressor (16) through the evaporator (5), and the dual-energy compressor (16) is also provided with a heat source medium channel communicated with the outside; the condenser (4) is also provided with a cooling medium channel communicated with the outside, the evaporator (5) or a heat source medium channel is also communicated with the outside, and the second expansion speed increaser (11) is connected with the dual-energy compressor (16) and transmits power to form a combined cycle power device.
CN202010101620.XA 2019-03-03 2020-02-09 Combined cycle power plant Pending CN111379606A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113882914A (en) * 2020-08-14 2022-01-04 李华玉 Pressure-changing heat-absorbing steam power system
CN114001480A (en) * 2020-09-21 2022-02-01 李华玉 Regenerative thermal cycle and regenerative gas thermal power device
CN114001482A (en) * 2020-09-29 2022-02-01 李华玉 Backheating type thermodynamic cycle and novel backheating mechanical compression heat pump
CN114001479A (en) * 2020-09-22 2022-02-01 李华玉 Regenerative thermal cycle and regenerative gas thermal power device
CN114017152A (en) * 2020-09-20 2022-02-08 李华玉 Variable pressure heat absorption gas power device
CN115217551A (en) * 2020-08-23 2022-10-21 李华玉 Pressure-changing heat-regenerative steam power device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113882914A (en) * 2020-08-14 2022-01-04 李华玉 Pressure-changing heat-absorbing steam power system
CN115217551A (en) * 2020-08-23 2022-10-21 李华玉 Pressure-changing heat-regenerative steam power device
CN114017152A (en) * 2020-09-20 2022-02-08 李华玉 Variable pressure heat absorption gas power device
CN114001480A (en) * 2020-09-21 2022-02-01 李华玉 Regenerative thermal cycle and regenerative gas thermal power device
CN114001479A (en) * 2020-09-22 2022-02-01 李华玉 Regenerative thermal cycle and regenerative gas thermal power device
CN114001482A (en) * 2020-09-29 2022-02-01 李华玉 Backheating type thermodynamic cycle and novel backheating mechanical compression heat pump

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