CN115370434A - Double-heat source gas-steam combined cycle power device - Google Patents

Double-heat source gas-steam combined cycle power device Download PDF

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CN115370434A
CN115370434A CN202210690443.2A CN202210690443A CN115370434A CN 115370434 A CN115370434 A CN 115370434A CN 202210690443 A CN202210690443 A CN 202210690443A CN 115370434 A CN115370434 A CN 115370434A
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China
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communicated
steam
heat exchanger
heat
channel
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李华玉
李鸿瑞
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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
    • F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • 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
    • F01K13/00—General layout or general methods of operation of complete plants
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
    • 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 double-heat-source gas-steam combined cycle power device, belonging to the technical field of thermodynamics and thermodynamics. An air channel is arranged outside and is communicated with a combustion chamber through a compressor and a heat source heat exchanger, a fuel channel is arranged outside and is communicated with the combustion chamber, a gas channel is arranged in the combustion chamber and is communicated with a gas turbine, the gas turbine and the gas channel are communicated with the outside through a high-temperature heat exchanger, a condenser is provided with a condensate liquid pipeline which is communicated with the high-temperature heat exchanger through a booster pump, then the high-temperature heat exchanger is provided with a steam channel which is communicated with a steam turbine, the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser, the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the double-heat source gas-steam combined cycle power device.

Description

Double-heat source gas-steam combined cycle power device
The technical field is as follows:
the invention belongs to the technical field of thermodynamics and thermodynamics.
Background art:
cold demand, heat demand and power demand, which are common in human life and production; among them, converting high temperature heat energy into mechanical energy through a thermal power device is an important means for human beings to obtain power or electricity.
Fuel is an important option for providing high temperature heat energy, such as natural gas providing high temperature driving heat energy for gas turbine plants by combustion; in plants for steel production and coking production, high temperature waste heat is an associated high temperature thermal resource that can also be partially converted into mechanical energy by a steam power plant or other thermal power plant. However, in the technology that fuel is independently used as driving heat energy of a thermal power device through combustion, and high-temperature waste heat is independently used as driving heat energy of the thermal power device, a system for converting the heat energy into mechanical energy often has large irreversible loss of temperature difference, especially the irreversible loss of temperature difference existing in the combustion process of the fuel.
People need to simply, actively, safely and efficiently utilize energy to obtain power. Therefore, the invention provides the double-heat-source gas-steam combined cycle power device which reasonably matches and uses the high-temperature waste heat and the fuel, realizes the complementation of advantages and shortages, greatly improves the heat power-changing efficiency of the high-temperature waste heat, reduces the emission of greenhouse gases and can obviously reduce the fuel cost.
The invention content is as follows:
the invention mainly aims to provide a double-heat-source gas-steam combined cycle power device, and the specific invention contents are explained in sections as follows:
1. the double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger and a combustion chamber; an air channel is arranged outside and is communicated with a combustion chamber through a compressor and a heat source heat exchanger, a fuel channel is arranged outside and is communicated with the combustion chamber, a gas channel is arranged in the combustion chamber and is communicated with a gas turbine, the gas turbine and the gas channel are communicated with the outside through a high-temperature heat exchanger, a condenser is provided with a condensate liquid pipeline which is communicated with the high-temperature heat exchanger through a booster pump, then the high-temperature heat exchanger is provided with a steam channel which is communicated with a steam turbine, the steam turbine is also provided with a low-pressure steam channel which is communicated with the condenser, the condenser is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel which is communicated with the outside, and the gas turbine is connected with the compressor and transmits power to form the double-heat source gas-steam combined cycle power device.
2. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is arranged outside and is communicated with a combustion chamber through a compressor, a high-temperature heat regenerator and a heat source heat exchanger, a fuel channel is arranged outside and is communicated with the combustion chamber, a gas channel is also arranged in the combustion chamber and is communicated with a gas turbine, the gas channel is also communicated with the outside through the high-temperature heat regenerator and the high-temperature heat exchanger, a condenser is provided with a condensate pipeline, a booster pump is communicated with the high-temperature heat exchanger, then the high-temperature heat exchanger is communicated with a steam channel through a steam turbine, the steam turbine is also provided with a low-pressure steam channel and is communicated with the condenser, the condenser is also provided with a cooling medium channel and is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel and is communicated with the outside, and the gas turbine is connected with the compressor and transmits power, so that the double-heat source gas-steam combined cycle power device is formed.
3. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is arranged outside and is communicated with a combustion chamber through a compressor, a heat source heat exchanger and a high-temperature heat regenerator, a fuel channel is arranged outside and is communicated with the combustion chamber, a gas channel is also arranged in the combustion chamber and is communicated with a gas turbine, the gas turbine and the gas channel are also communicated with the outside through the high-temperature heat exchanger and the high-temperature heat exchanger, a condenser is provided with a condensate pipeline, a booster pump is communicated with the high-temperature heat exchanger, then the high-temperature heat exchanger is communicated with a steam channel and a steam turbine, the steam turbine and a low-pressure steam channel are communicated with the condenser, the condenser is also provided with a cooling medium channel and is communicated with the outside, the heat source heat exchanger is also provided with a heat source medium channel and is communicated with the outside, and the gas turbine is connected with the compressor and transmits power, so that the double-heat source gas-steam combined cycle power device is formed.
4. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; the external part has air channel and compressor after communicating and then the compressor has air channel to communicate with oneself through the high-temperature regenerator, the compressor also has air channel to communicate with combustion chamber through the heat source heat exchanger, the external part also has fuel channel to communicate with combustion chamber, the combustion chamber also has gas channel to communicate with gas turbine, gas turbine still has gas channel to communicate with outside through high-temperature regenerator and high-temperature heat exchanger, the condenser has condensate pipe line to communicate with high-temperature heat exchanger through the booster pump and then the high-temperature heat exchanger has steam channel to communicate with steam turbine, the steam turbine also has low-pressure steam channel to communicate with condenser, the condenser also has cooling medium channel to communicate with the outside, the heat source heat exchanger also has heat source medium channel to communicate with the outside, the gas turbine connects the compressor and transmits power, form the dual heat source gas-steam combined cycle power plant.
5. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; the external part of the gas turbine is communicated with the combustion chamber through a compressor, a high-temperature heat regenerator and a heat source heat exchanger, the external part of the gas turbine is also communicated with the combustion chamber through a fuel channel, the combustion chamber is also communicated with a gas turbine through a gas channel, the gas turbine is also communicated with the external part through the high-temperature heat exchanger, a condenser is provided with a condensate pipeline, the high-temperature heat exchanger is communicated with a steam turbine through a steam channel after being communicated with the high-temperature heat exchanger through a booster pump, the steam turbine is also communicated with a low-pressure steam channel, the condenser is also communicated with the external part through a cooling medium channel, the heat source heat exchanger is also communicated with the external part through a heat source medium channel, and the gas turbine is connected with the compressor and transmits power to form the double-heat source gas-steam combined cycle power device.
6. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; the external part of the gas turbine is communicated with the combustion chamber through a compressor, a heat source heat exchanger and a high-temperature heat regenerator, the external part of the gas turbine is also communicated with the combustion chamber through a fuel channel, the combustion chamber is also communicated with a gas turbine through a gas channel, the gas turbine is also communicated with the external part through the high-temperature heat exchanger, a condenser is provided with a condensate pipeline, the high-temperature heat exchanger is communicated with a steam turbine through a steam channel after being communicated with the high-temperature heat exchanger through a booster pump, the steam turbine is also communicated with a low-pressure steam channel, the condenser is also communicated with the external part through a cooling medium channel, the heat source heat exchanger is also communicated with the external part through a heat source medium channel, and the gas turbine is connected with the compressor and transmits power to form the double-heat source gas-steam combined cycle power device.
7. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; the external part has air channel and compressor after communicating and then the compressor has air channel to communicate with one's own through the high-temperature heat regenerator, the compressor also has air channel to communicate with combustion chamber through the heat source heat exchanger, the external part also has fuel channel to communicate with combustion chamber, the combustion chamber also has gas channel and gas turbine after communicating with one's gas turbine and then have gas channel to communicate with one's own through the high-temperature heat regenerator, the gas turbine also has gas channel to communicate with the outside through the high-temperature heat exchanger, the condenser has condensate pipe line to communicate with high-temperature heat exchanger through the booster pump and then the high-temperature heat exchanger has steam channel to communicate with the steam turbine, the steam turbine also has low-pressure steam channel to communicate with the condenser, the condenser also has cooling medium channel to communicate with the outside, the heat source heat exchanger also has heat source medium channel to communicate with the outside, the gas turbine connects the compressor and transmits power, form the dual heat source gas-steam combined cycle power plant.
8. A double-heat-source gas-steam combined cycle power device is characterized in that in any one of the double-heat-source gas-steam combined cycle power devices in items 1-7, a high-temperature heat exchanger is adjusted to be communicated with a steam turbine through a steam channel, and the high-temperature heat exchanger is adjusted to be communicated with the steam turbine through the steam channel of the heat source heat exchanger, so that the double-heat-source gas-steam combined cycle power device is formed.
9. A double-heat-source gas-steam combined cycle power device is characterized in that in any one of the double-heat-source gas-steam combined cycle power devices in items 1 to 7, a high-temperature heat exchanger is provided with a steam channel to be communicated with a steam turbine, the high-temperature heat exchanger is provided with a steam channel to be communicated with the steam turbine, and then the steam channel of the steam turbine is communicated with the steam turbine through a heat-source heat exchanger to form the double-heat-source gas-steam combined cycle power device.
10. A double-heat-source gas-steam combined cycle power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the double-heat-source gas-steam combined cycle power devices in items 1-9, a condenser is adjusted to be communicated with a condensate pipeline through the booster pump, the condenser is adjusted to be communicated with the low-temperature heat regenerator through the condensate pipeline, a steam turbine is provided with a steam extraction channel to be communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is communicated with the booster pump through the condensate pipeline, so that the double-heat-source gas-steam combined cycle power device is formed.
11. A double-heat-source gas-steam combined cycle power device is formed by adding an expansion speed increaser to replace a steam turbine and adding a diffuser pipe to replace a booster pump in any one of the double-heat-source gas-steam combined cycle power devices 1 to 9.
12. A dual-heat-source gas-steam combined cycle power device is characterized in that in any one dual-heat-source gas-steam combined cycle power device in item 10, an expansion speed increaser is added to replace a steam turbine, a diffuser pipe is added to replace a booster pump, and a second diffuser pipe is added to replace a second booster pump, so that the dual-heat-source gas-steam combined cycle power device is formed.
13. A double-heat-source gas-steam combined cycle power device is characterized in that in any one of the double-heat-source gas-steam combined cycle power devices 1-12, a high-temperature heat exchanger is additionally provided with a heat source medium channel communicated with the outside to form the double-heat-source gas-steam combined cycle power device.
Description of the drawings:
FIG. 1 is a schematic thermodynamic system diagram of the 1 st principle of a dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 2 is a schematic thermodynamic system diagram of the 2 nd principle of a dual heat source gas-steam 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 dual heat source gas-steam 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 dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 5 is a schematic thermodynamic system diagram of the 5 th principle of a dual heat source combined gas-steam cycle power plant provided in accordance with the present invention.
FIG. 6 is a 6 th principal thermodynamic system diagram of a dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 7 is a 7 th principal thermodynamic system diagram of a dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 8 is a diagram of the 8 th principle thermodynamic system of a dual heat source gas-steam 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 dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 10 is a 10 th principal thermodynamic system diagram of a dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 11 is a schematic 11 th principal thermodynamic system diagram of a dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
FIG. 12 is a schematic thermodynamic system diagram of a 12 th principle of a dual heat source combined gas-steam cycle power plant provided in accordance with the present invention.
FIG. 13 is a 13 th principal thermodynamic system diagram of a dual heat source gas-steam combined cycle power plant provided in accordance with the present invention.
In the figure, 1-a steam turbine, 2-a booster pump, 3-a high-temperature heat exchanger, 4-a condenser, 5-a compressor, 6-a gas turbine, 7-a heat source heat exchanger, 8-a combustion chamber, 9-a high-temperature regenerator, 10-a second booster pump, 11-a low-temperature regenerator, 12-an expansion speed increaser, 13-a diffuser pipe and 14-a second diffuser pipe.
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 procedures are not described. The invention is described in detail below with reference to the figures and examples.
The dual heat source gas-steam combined cycle power plant shown in fig. 1 is realized by:
(1) Structurally, the heat pump type air conditioner mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger and a combustion chamber; an air channel is arranged outside and is communicated with a combustion chamber 8 through a compressor 5 and a heat source heat exchanger 7, a fuel channel is arranged outside and is communicated with the combustion chamber 8, a gas channel is also arranged in the combustion chamber 8 and is communicated with a gas turbine 6, the gas turbine 6 and the gas channel are also communicated with the outside through a high-temperature heat exchanger 3, a condenser 4 is provided with a condensate pipeline, a steam channel is arranged on the high-temperature heat exchanger 3 after being communicated with the high-temperature heat exchanger 3 through a booster pump 2 and is communicated with a steam turbine 1, the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4, the condenser 4 is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium channel which is communicated with the outside, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) In the flow, the external air flows through the compressor 5 to increase the pressure and the temperature, flows through the heat source heat exchanger 7 to absorb heat and increase the temperature, and then enters the combustion chamber 8; external fuel enters the combustion chamber 8, is mixed with compressed air from the heat source heat exchanger 7 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 flows through the gas turbine 6 to reduce pressure and do work, flows through the high-temperature heat exchanger 3 to release heat and reduce temperature, and is discharged outwards; the condensate of the condenser 4 is boosted by the booster pump 2, and absorbs heat, heats, vaporizes and overheats by the high-temperature heat exchanger 3, the steam discharged by the high-temperature heat exchanger 3 is reduced in pressure and works by the steam turbine 1, and the low-pressure steam discharged by the steam turbine 1 enters the condenser 4 to release heat and condense; a heat source medium and fuel jointly provide driving heat load through a heat source heat exchanger 7 and a combustion chamber 8, a cooling medium takes away low-temperature heat load through a condenser 4, and air and fuel gas take away the low-temperature heat load through an inlet flow and an outlet flow; the work output by the steam turbine 1 and the gas turbine 6 is provided for the compressor 5 and external power, or the work output by the steam turbine 1 and the gas turbine 6 is provided for the booster pump 2, the compressor 5 and external power, so that a double-heat-source gas-steam combined cycle power device is formed.
The dual heat source gas-steam combined cycle power plant shown in fig. 2 is realized by:
(1) Structurally, the heat recovery system mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel outside is communicated with a combustion chamber 8 through a compressor 5, a high-temperature heat regenerator 9 and a heat source heat exchanger 7, a fuel channel outside is communicated with the combustion chamber 8, a gas channel is also communicated with a gas turbine 6 in the combustion chamber 8, the gas turbine 6 is also communicated with the outside through the high-temperature heat regenerator 9 and the high-temperature heat exchanger 3, a condensate pipeline of a condenser 4 is communicated with the high-temperature heat exchanger 3 through a booster pump 2, then a steam channel of the high-temperature heat exchanger 3 is communicated with a steam turbine 1, the steam turbine 1 is also communicated with a low-pressure steam channel of the condenser 4, a cooling medium channel of the condenser 4 is communicated with the outside, the heat source heat exchanger 7 is also communicated with the outside through a heat source medium channel, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the external air flows through the compressor 5 to be boosted and heated, flows through the high-temperature heat regenerator 9 and the heat source heat exchanger 7 to gradually absorb heat and be heated, and then enters the combustion chamber 8; the external fuel enters the combustion chamber 8, is mixed with the compressed air from the heat source heat exchanger 7 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 flows through the gas turbine 6 to reduce pressure and do work, flows through the high-temperature heat regenerator 9 and the high-temperature heat exchanger 3 to gradually release heat and reduce temperature, and then is discharged outwards to form the double-heat-source gas-steam combined cycle power device.
The dual heat source gas-steam combined cycle power plant shown in fig. 3 is realized by:
(1) Structurally, the heat pump type air conditioner mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel outside is communicated with a combustion chamber 8 through a compressor 5, a heat source heat exchanger 7 and a high-temperature heat regenerator 9, a fuel channel outside is communicated with the combustion chamber 8, a gas channel is also communicated with a gas turbine 6 in the combustion chamber 8, the gas turbine 6 is also communicated with the outside through the high-temperature heat regenerator 9 and the high-temperature heat exchanger 3, a condensate pipeline of a condenser 4 is communicated with the high-temperature heat exchanger 3 through a booster pump 2, then a steam channel of the high-temperature heat exchanger 3 is communicated with a steam turbine 1, the steam turbine 1 is also communicated with a low-pressure steam channel of the condenser 4, a cooling medium channel of the condenser 4 is communicated with the outside, the heat source heat exchanger 7 is also communicated with the outside through a heat source medium channel, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the external air flows through the compressor 5 to be boosted and heated, flows through the heat source heat exchanger 7 and the high-temperature heat regenerator 9 to gradually absorb heat and be heated, and then enters the combustion chamber 8; external fuel enters the combustion chamber 8, is mixed with compressed air from the high-temperature heat regenerator 9 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 flows through the gas turbine 6 to reduce pressure and do work, flows through the high-temperature heat regenerator 9 and the high-temperature heat exchanger 3 to gradually release heat and reduce temperature, and then is discharged outwards to form the double-heat-source gas-steam combined cycle power device.
The dual heat source gas-steam combined cycle power plant shown in fig. 4 is realized by:
(1) Structurally, the heat recovery system mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; the air channel outside is communicated with the compressor 5, then the air channel of the compressor 5 is communicated with the compressor 5 through the high-temperature heat regenerator 9, the air channel of the compressor 5 is communicated with the combustion chamber 8 through the heat source heat exchanger 7, the fuel channel of the outside is communicated with the combustion chamber 8, the combustion chamber 8 is also communicated with the gas turbine 6 through the gas channel, the gas turbine 6 is also communicated with the outside through the high-temperature heat regenerator 9 and the high-temperature heat exchanger 3, the condenser 4 is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger 3 through the booster pump 2, then the steam channel of the high-temperature heat exchanger 3 is communicated with the steam turbine 1, the steam turbine 1 is also provided with a low-pressure steam channel which is communicated with the condenser 4, the condenser 4 is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger 7 is also provided with a heat source medium channel which is communicated with the outside, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the external air enters the compressor 5 to be boosted and heated to a certain degree, then flows through the high-temperature heat regenerator 9 to absorb heat and be heated, and then enters the compressor 5 to be boosted and heated continuously; the high-pressure air discharged by the compressor 5 flows through the heat source heat exchanger 7 to absorb heat and raise temperature, and then enters the combustion chamber 8; external fuel enters the combustion chamber 8, is mixed with compressed air from the heat source heat exchanger 7 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 flows through the gas turbine 6 to reduce pressure and work, flows through the high-temperature heat regenerator 9 and the high-temperature heat exchanger 3 to gradually release heat and reduce temperature, and is then discharged to the outside to form the double-heat-source gas-steam combined cycle power device.
The dual heat source gas-steam combined cycle power plant shown in fig. 5 is implemented as follows:
(1) Structurally, the heat recovery system mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel outside is communicated with a combustion chamber 8 through a compressor 5, a high-temperature heat regenerator 9 and a heat source heat exchanger 7, a fuel channel is further communicated with the combustion chamber 8 outside, the combustion chamber 8 is also communicated with a gas channel 6, then the gas channel of the gas turbine 6 is communicated with the combustion chamber through the high-temperature heat regenerator 9, the gas channel of the gas turbine 6 is also communicated with the outside through the high-temperature heat exchanger 3, a condensate pipeline of a condenser 4 is communicated with the high-temperature heat exchanger 3 through a booster pump 2, then a steam channel of the high-temperature heat exchanger 3 is communicated with a steam turbine 1, the steam turbine 1 is also communicated with the condenser 4 through a low-pressure steam channel, a cooling medium channel of the condenser 4 is communicated with the outside, the heat source heat exchanger 7 is also communicated with the outside through a heat source medium channel, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the external air flows through the compressor 5 to be boosted and heated, flows through the high-temperature heat regenerator 9 and the heat source heat exchanger 7 to gradually absorb heat and be heated, and then enters the combustion chamber 8; external fuel enters the combustion chamber 8, is mixed with compressed air from the heat source heat exchanger 7 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 enters the gas turbine 6 to reduce the pressure and do work to a certain degree, then flows through the high-temperature heat regenerator 9 to release heat and reduce the temperature, and then enters the gas turbine 6 to continue reducing the pressure and do work; and the gas discharged by the gas turbine 6 is discharged through the high-temperature heat exchanger 3 to reduce the temperature and then discharged outwards, so that the double-heat-source gas-steam combined cycle power device is formed.
The dual heat source gas-steam combined cycle power plant shown in fig. 6 is realized by:
(1) Structurally, the heat recovery system mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel outside is communicated with a combustion chamber 8 through a compressor 5, a heat source heat exchanger 7 and a high-temperature heat regenerator 9, a fuel channel is further communicated with the combustion chamber 8 outside, the combustion chamber 8 is also communicated with a gas channel 6, then the gas channel of the gas turbine 6 is communicated with the combustion chamber through the high-temperature heat regenerator 9, the gas channel of the gas turbine 6 is also communicated with the outside through the high-temperature heat exchanger 3, a condensate pipeline of a condenser 4 is communicated with the high-temperature heat exchanger 3 through a booster pump 2, then a steam channel of the high-temperature heat exchanger 3 is communicated with a steam turbine 1, the steam turbine 1 is also communicated with the condenser 4 through a low-pressure steam channel, a cooling medium channel of the condenser 4 is communicated with the outside, the heat source heat exchanger 7 is also communicated with the outside through a heat source medium channel, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the external air flows through the compressor 5 to be boosted and heated, flows through the heat source heat exchanger 7 and the high-temperature heat regenerator 9 to gradually absorb heat and be heated, and then enters the combustion chamber 8; external fuel enters a combustion chamber 8, is mixed with compressed air from a high-temperature heat regenerator 9 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 enters the gas turbine 6 to reduce the pressure and do work to a certain degree, then flows through the high-temperature heat regenerator 9 to release heat and reduce the temperature, and then enters the gas turbine 6 to continue reducing the pressure and do work; and the gas discharged by the gas turbine 6 is discharged through the high-temperature heat exchanger 3 to release heat and reduce temperature, and then is discharged to the outside to form the double-heat-source gas-steam combined cycle power device.
The dual heat source gas-steam combined cycle power plant shown in fig. 7 is realized by:
(1) Structurally, the heat recovery system mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is arranged outside the compressor 5 to be communicated with the compressor 5, then the air channel of the compressor 5 is communicated with the compressor 5 through a high-temperature heat regenerator 9, the air channel of the compressor 5 is communicated with a combustion chamber 8 through a heat source heat exchanger 7, a fuel channel is arranged outside the compressor 8 to be communicated with the combustion chamber 8, a fuel channel is arranged outside the combustion chamber 8 to be communicated with a gas turbine 6, then the fuel channel of the gas turbine 6 is communicated with the compressor 5 through the high-temperature heat regenerator 9, the gas channel of the gas turbine 6 is communicated with the outside through a high-temperature heat exchanger 3, a condensate pipeline of the condenser 4 is communicated with the high-temperature heat exchanger 3 through a booster pump 2, then the steam channel of the high-temperature heat exchanger 3 is communicated with the steam turbine 1, the low-pressure steam channel of the steam turbine 1 is communicated with the condenser 4, the cooling medium channel of the condenser 4 is communicated with the outside, the heat source heat exchanger 7 is communicated with the outside, and the gas turbine 6 is connected with the compressor 5 and transmits power.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the external air enters the compressor 5 to be boosted and heated to a certain degree, then flows through the high-temperature heat regenerator 9 to absorb heat and be heated, and then enters the compressor 5 to be boosted and heated continuously; the air discharged by the compressor 5 passes through the heat source heat exchanger 7 to absorb heat and raise temperature, and then enters the combustion chamber 8; the external fuel enters the combustion chamber 8, is mixed with the compressed air from the heat source heat exchanger 7 and is combusted into high-temperature and high-pressure fuel gas; the gas generated by the combustion chamber 8 enters the gas turbine 6 to reduce the pressure and do work to a certain degree, then flows through the high-temperature heat regenerator 9 to release heat and reduce the temperature, and then enters the gas turbine 6 to continue reducing the pressure and do work; and the gas discharged by the gas turbine 6 is discharged through the high-temperature heat exchanger 3 to reduce the temperature and then discharged outwards, so that the double-heat-source gas-steam combined cycle power device is formed.
The dual heat source gas-steam combined cycle power plant shown in fig. 8 is realized by:
(1) Structurally, in the dual heat source gas-steam combined cycle power plant shown in fig. 1, the high temperature heat exchanger 3 having a steam passage communicating with the steam turbine 1 is adjusted so that the high temperature heat exchanger 3 having a steam passage communicating with the steam turbine 1 via the heat source heat exchanger 7.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the condensate of the condenser 4 flows through the booster pump 2 to be boosted, flows through the high-temperature heat exchanger 3 to absorb heat and be boosted and vaporized, flows through the heat source heat exchanger 7 to absorb heat and be boosted, flows through the steam turbine 1 to be decompressed and work, then enters the condenser 4 to release heat and is condensed, and the double-heat-source gas-steam combined cycle power device is formed.
The dual heat source gas-steam combined cycle power plant shown in fig. 9 is realized by:
(1) Structurally, in the dual heat source gas-steam combined cycle power plant shown in fig. 1, the high temperature heat exchanger 3 having the steam passage communicating with the steam turbine 1 is adjusted so that the high temperature heat exchanger 3 having the steam passage communicating with the steam turbine 1 and then the steam turbine 1 having the steam passage communicating with itself via the heat source heat exchanger 7.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the condensate of the condenser 4 flows through the booster pump 2 to be boosted, enters the steam turbine 1 to be decompressed and does work to a certain degree, then flows through the heat source heat exchanger 7 to absorb heat and raise temperature, and then enters the steam turbine 1 to continue to be decompressed and does work; the low-pressure steam discharged by the steam turbine 1 enters the condenser 4 to release heat and condense, and a double-heat-source gas-steam combined cycle power device is formed.
The dual heat source gas-steam combined cycle power plant shown in fig. 10 is realized by:
(1) Structurally, in the dual-heat-source gas-steam combined cycle power plant shown in fig. 1, a second booster pump and a low-temperature heat regenerator are added, the condenser 4 is adjusted to be communicated with the booster pump 2 through a condensate pipeline, the condenser 4 is adjusted to be communicated with the low-temperature heat regenerator 11 through a condensate pipeline of the second booster pump 10, the steam turbine 1 is provided with a steam extraction channel to be communicated with the low-temperature heat regenerator 11, and the low-temperature heat regenerator 11 is communicated with the booster pump 2 through a condensate pipeline.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the condensate discharged by the condenser 4 flows through the second booster pump 10 to be boosted and then enters the low-temperature heat regenerator 11 to be mixed with the extracted steam from the steam turbine 1, absorb heat and raise the temperature, and the extracted steam releases heat to form condensate; the condensate of the low-temperature heat regenerator 11 flows through the booster pump 2 to be boosted, flows through the high-temperature heat exchanger 3 to absorb heat, raise temperature, vaporize and overheat, and then enters the steam turbine 1 to be decompressed and work; the steam entering the steam turbine 1 is decompressed and does work to a certain degree and then is divided into two paths, the first path is provided for the low-temperature heat regenerator 11, and the second path continues to be decompressed and does work and then enters the condenser 4 to release heat and condense to form the dual-heat-source gas-steam combined cycle power device.
The dual heat source gas-steam combined cycle power plant shown in fig. 11 is realized by:
(1) Structurally, in the dual-heat-source gas-steam combined cycle power plant shown in fig. 1, an expansion speed increaser 12 is added to replace the steam turbine 1, and a diffuser 13 is added to replace the booster pump 2.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the condensate of the condenser 4 flows through the diffuser pipe 13 to reduce the speed and increase the pressure, flows through the high-temperature heat exchanger 3 to absorb heat, raise the temperature, vaporize and overheat, flows through the expansion speed increaser 12 to reduce the pressure, do work and increase the speed, and then enters the condenser 4 to release heat and condense; the work output by the gas turbine 6 and the expansion speed increaser 12 is provided for the compressor 5 and external power to form a double-heat-source gas-steam combined cycle power plant.
The dual heat source gas-steam combined cycle power plant illustrated in FIG. 12 is so implemented;
(1) Structurally, in the dual heat source gas-steam combined cycle power plant shown in fig. 10, an expansion speed increaser 12 is added to replace the steam turbine 1, a diffuser 13 is added to replace the booster pump 2, and a second diffuser 14 is added to replace the second booster pump 10.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in fig. 10, the difference in the flow is that: the condensate discharged by the condenser 4 flows through a second diffuser pipe 14, is subjected to speed reduction and pressure increase, then enters a low-temperature heat regenerator 11, is mixed with extracted steam from an expansion speed increaser 12, absorbs heat, is heated, and releases heat to form condensate after the extracted steam is extracted; the condensate of the low-temperature heat regenerator 11 flows through a diffuser pipe 13 to reduce the speed and increase the pressure, flows through the high-temperature heat exchanger 3 to absorb heat, raise the temperature, vaporize and overheat, and then enters the expansion speed increaser 12; the steam entering the expansion speed increaser 12 reduces the pressure and does work to a certain degree, and then is divided into two paths, the first path is provided for the low-temperature heat regenerator 11, the second path continues to reduce the pressure and do work and increase the speed, and then enters the condenser 4 to release heat and condense, so that the double-heat-source gas-steam combined cycle power device is formed.
The dual heat source gas-steam combined cycle power plant shown in fig. 13 is realized by:
(1) Structurally, in the dual-heat-source gas-steam combined cycle power plant shown in fig. 1, a high-temperature heat exchanger 3 is additionally provided with a heat source medium passage communicated with the outside.
(2) Compared with the double-heat-source gas-steam combined cycle power plant shown in the figure 1, the difference in the flow is that: the gas from the gas turbine 6 and the heat source medium (the heat source medium is from the heat source heat exchanger 7 or from another heat source) together provide a heat load to the condensate from the booster pump 2, forming a dual heat source gas-steam combined cycle power plant.
The effect that the technology of the invention can realize-the double heat source gas-steam combined cycle power device provided by the invention has the following effects and advantages:
(1) The high-temperature heat resource and the fuel are reasonably matched to jointly build a driving heat source; the high-temperature heat resource exerts a fuel effect, and the utilization value of converting the high-temperature heat resource into mechanical energy is greatly improved.
(2) The high-temperature driving heat load realizes graded utilization, the irreversible loss of temperature difference is obviously reduced, and the heat power change efficiency is effectively improved.
(3) The high-temperature heat resource completes the parameter promotion of the compressed air, and the irreversible loss of the temperature difference in the fuel combustion process is effectively reduced.
(4) The high-temperature heat resource realizes deep utilization and effectively improves the utilization efficiency of energy/waste heat.
(5) The high-temperature heat resource can be used for/is beneficial to reducing the compression ratio of the top gas turbine circulating system, improving the flow of gas circulating working medium and increasing the load of a power device.
(6) The range of the driving heat source used by the gas-steam combined cycle power device is effectively expanded, and the energy consumption cost of the device is reduced.
(7) The utilization value of the fuel is improved, the emission of greenhouse gases and pollutants is reduced, and the energy-saving and emission-reducing benefits are remarkable.
(8) Simple structure, reasonable flow, rich scheme, and is favorable to lowering the manufacture cost of the device and expanding the application range of the technology.

Claims (13)

1. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger and a combustion chamber; an air channel is arranged outside and is communicated with a combustion chamber (8) through a compressor (5) and a heat source heat exchanger (7), a fuel channel is arranged outside and is communicated with the combustion chamber (8), the combustion chamber (8) is also provided with a gas channel and is communicated with a gas turbine (6), the gas turbine (6) is also provided with a gas channel and is communicated with the outside through a high-temperature heat exchanger (3), a condenser (4) is provided with a condensate pipeline, the high-temperature heat exchanger (3) is communicated with the high-temperature heat exchanger (3) through a booster pump (2), then the high-temperature heat exchanger (3) is further provided with a steam channel and is communicated with a steam turbine (1), the steam turbine (1) is also provided with a low-pressure steam channel and is communicated with the condenser (4), the condenser (4) is further provided with a cooling medium channel and is communicated with the outside, the heat source heat exchanger (7) is further provided with a heat source medium channel and is communicated with the outside, and the gas turbine (6) is connected with the compressor (5) and transmits power, so that a double-heat source gas-steam combined cycle power device is formed.
2. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is communicated with a combustion chamber (8) through a compressor (5), a high-temperature regenerator (9) and a heat source heat exchanger (7) outside, a fuel channel is communicated with the combustion chamber (8) outside, a gas channel is communicated with a gas turbine (6) outside, the gas turbine (6) also has a gas channel which is communicated with the outside through the high-temperature regenerator (9) and a high-temperature heat exchanger (3), a condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through a booster pump (2), then the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with a steam turbine (1), the steam turbine (1) is further provided with a low-pressure steam channel which is communicated with the condenser (4), the condenser (4) is further provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (7) is further provided with the outside, and the gas turbine (6) is connected with the compressor (5) and transmits power to form a dual-heat source gas-steam combined cycle power device.
3. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is arranged outside and is communicated with a combustion chamber (8) through a compressor (5), a heat source heat exchanger (7) and a high-temperature heat regenerator (9), a fuel channel is arranged outside and is communicated with the combustion chamber (8), the combustion chamber (8) is also provided with a gas channel and is communicated with a gas turbine (6), the gas turbine (6) is also provided with a gas channel and is communicated with the outside through the high-temperature heat regenerator (9) and a high-temperature heat exchanger (3), a condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through a booster pump (2), then the high-temperature heat exchanger (3) is further provided with a steam channel which is communicated with a steam turbine (1), the steam turbine (1) is further provided with a low-pressure steam channel which is communicated with the condenser (4), the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (7) is further provided with the outside, and the gas turbine (6) is connected with the compressor (5) and transmits power to form the double-heat source gas-steam combined cycle power device.
4. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; the external air channel is communicated with the compressor (5), then the air channel of the compressor (5) is communicated with the compressor through a high-temperature regenerator (9), the air channel of the compressor (5) is communicated with a combustion chamber (8) through a heat source heat exchanger (7), the external fuel channel is communicated with the combustion chamber (8), the combustion chamber (8) is also communicated with a gas channel and a gas turbine (6), the gas turbine (6) is also communicated with the external through the high-temperature regenerator (9) and a high-temperature heat exchanger (3), the condenser (4) is provided with a condensate pipeline, then the high-temperature heat exchanger (3) is further provided with a steam channel communicated with the steam turbine (1), the steam turbine (1) is also provided with a low-pressure steam channel communicated with the condenser (4), the condenser (4) is also provided with a cooling medium channel communicated with the external, the heat source heat exchanger (7) is also provided with the heat source medium channel communicated with the external, and the gas turbine (6) is connected with the compressor (5) and transmits power to form a double-heat source gas-steam combined cycle power device.
5. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is communicated with a combustion chamber (8) through a compressor (5), a high-temperature regenerator (9) and a heat source heat exchanger (7) outside, a fuel channel is communicated with the combustion chamber (8) outside, the combustion chamber (8) is also communicated with a gas turbine (6) through a gas channel, then the gas turbine (6) is communicated with the gas turbine (6) through the high-temperature regenerator (9), the gas turbine (6) is also communicated with the outside through a high-temperature heat exchanger (3), a condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through a booster pump (2), then the high-temperature heat exchanger (3) is also communicated with a steam turbine (1), the steam turbine (1) is also provided with a low-pressure steam channel which is communicated with the condenser (4), the condenser (4) is also provided with a cooling medium channel which is communicated with the outside, the heat source heat exchanger (7) is also communicated with the outside, and the gas turbine (6) is connected with the compressor (5) and transmits power to form a double-heat source gas-steam combined cycle power device.
6. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is communicated with a combustion chamber (8) through a compressor (5), a heat source heat exchanger (7) and a high-temperature heat regenerator (9) outside, a fuel channel is communicated with the combustion chamber (8) outside, the combustion chamber (8) is also communicated with a gas turbine (6) through a gas channel, then the gas turbine (6) is communicated with the gas turbine (6) through the high-temperature heat regenerator (9), the gas turbine (6) is also communicated with the outside through a high-temperature heat exchanger (3), a condenser (4) is provided with a condensate pipeline which is communicated with the high-temperature heat exchanger (3) through a booster pump (2), then the high-temperature heat exchanger (3) is also communicated with a steam channel and a steam turbine (1), the steam turbine (1) is also provided with a low-pressure steam channel and a condenser (4), the condenser (4) is also provided with a cooling medium channel and communicated with the outside, the heat source heat exchanger (7) is also communicated with the outside, and the gas turbine (6) is connected with the compressor (5) and transmits power to form a double-heat source gas-steam combined cycle power device.
7. The double-heat-source gas-steam combined cycle power plant mainly comprises a steam turbine, a booster pump, a high-temperature heat exchanger, a condenser, a compressor, a gas turbine, a heat source heat exchanger, a combustion chamber and a high-temperature heat regenerator; an air channel is arranged outside and communicated with the compressor (5), then the air channel of the compressor (5) is communicated with the compressor through a high-temperature regenerator (9), the air channel of the compressor (5) is communicated with a combustion chamber (8) through a heat source heat exchanger (7), a fuel channel is arranged outside and communicated with the combustion chamber (8), the combustion chamber (8) is also communicated with a gas channel of the gas turbine (6), then the gas channel of the gas turbine (6) is communicated with the combustion chamber through the high-temperature regenerator (9), the gas channel of the gas turbine (6) is also communicated with the outside through the high-temperature heat exchanger (3), a condensate pipeline of the condenser (4) is communicated with the high-temperature heat exchanger (3), then the steam channel of the high-temperature heat exchanger (3) is communicated with a steam turbine (1), the steam turbine (1) is also communicated with a low-pressure steam channel of the condenser (4), the cooling medium channel of the condenser (4) is communicated with the outside, the heat source heat exchanger (7) is also communicated with the heat source medium channel of the heat source, the gas turbine (6) is connected with the compressor (5) and transmits power, and a double-gas-steam combined cycle power device is formed.
8. A double-heat-source gas-steam combined cycle power device is characterized in that in any one of the double-heat-source gas-steam combined cycle power devices disclosed in claims 1-7, a high-temperature heat exchanger (3) is communicated with a steam turbine (1) through a steam channel, and the high-temperature heat exchanger (3) is communicated with the steam turbine (1) through a heat-source heat exchanger (7) through the steam channel, so that the double-heat-source gas-steam combined cycle power device is formed.
9. A double-heat-source gas-steam combined cycle power device is characterized in that in any one of the double-heat-source gas-steam combined cycle power devices in claims 1 to 7, a high-temperature heat exchanger (3) is provided with a steam channel to be communicated with a steam turbine (1), and the steam channel of the steam turbine (1) is communicated with the steam turbine (1) through a heat-source heat exchanger (7) after the high-temperature heat exchanger (3) is provided with the steam channel to be communicated with the steam turbine (1), so that the double-heat-source gas-steam combined cycle power device is formed.
10. A double-heat-source gas-steam combined cycle power device is characterized in that a second booster pump and a low-temperature heat regenerator are added in any one of the double-heat-source gas-steam combined cycle power devices in claims 1-9, a condenser (4) is provided with a condensate pipeline which is communicated with a booster pump (2) and adjusted to be that the condenser (4) is provided with a condensate pipeline which is communicated with the low-temperature heat regenerator (11) through a second booster pump (10), a steam turbine (1) is provided with a steam extraction channel which is communicated with the low-temperature heat regenerator (11), and the low-temperature heat regenerator (11) is further provided with a condensate pipeline which is communicated with the booster pump (2), so that the double-heat-source gas-steam combined cycle power device is formed.
11. A double-heat-source gas-steam combined cycle power device is formed by adding an expansion speed increaser (12) to replace a steam turbine (1) and adding a diffuser pipe (13) to replace a booster pump (2) in any one of the double-heat-source gas-steam combined cycle power devices of claims 1 to 9.
12. A double-heat-source gas-steam combined cycle power device is characterized in that in any one double-heat-source gas-steam combined cycle power device in claim 10, an expansion speed increaser (12) is added to replace a steam turbine (1), a diffuser pipe (13) is added to replace a booster pump (2), and a second diffuser pipe (14) is added to replace a second booster pump (10), so that the double-heat-source gas-steam combined cycle power device is formed.
13. A double-heat-source gas-steam combined cycle power device is characterized in that in any one of the double-heat-source gas-steam combined cycle power devices in claims 1-12, a high-temperature heat exchanger (3) is additionally provided with a heat source medium channel communicated with the outside to form the double-heat-source gas-steam combined cycle power device.
CN202210690443.2A 2021-05-19 2022-05-18 Double-heat source gas-steam combined cycle power device Pending CN115370434A (en)

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CN202110590054 2021-05-19

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