CN113217124A - Gas turbine type combined cycle power plant - Google Patents

Gas turbine type combined cycle power plant Download PDF

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Publication number
CN113217124A
CN113217124A CN202110478559.5A CN202110478559A CN113217124A CN 113217124 A CN113217124 A CN 113217124A CN 202110478559 A CN202110478559 A CN 202110478559A CN 113217124 A CN113217124 A CN 113217124A
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China
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communicated
compressor
gas turbine
channel
temperature heat
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CN202110478559.5A
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Chinese (zh)
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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
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
    • 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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • 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
    • 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
    • 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]

Abstract

The invention provides a gas turbine type combined cycle power device, and belongs to the technical field of energy and power. The external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through a high-temperature heat exchanger; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a circulating pump, the evaporator is provided with a steam channel which is communicated with the high-temperature heat exchanger, the second compressor is provided with a steam channel which is communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is also provided with a steam channel which is communicated with the expander, the expander is also provided with a low-pressure steam channel which is communicated with the evaporator, and the evaporator is also provided with a low-pressure steam channel which is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine and the expander are connected with the compressor and the second compressor and transmit power to form the gas turbine type combined cycle power device.

Description

Gas turbine type combined cycle power plant
The technical field is as follows:
the invention belongs to the technical field of energy and power.
Background art:
cold demand, heat demand and power demand, which are common in human life and production; among them, the conversion of thermal energy into mechanical energy is an important way to obtain and provide power. In general, the temperature of the heat source decreases with the release of heat, and the heat source is variable. When fossil fuel is used as a source energy source, the heat source has the dual characteristics of high temperature and variable temperature, so that a power device based on single thermodynamic cycle is difficult to convert more heat energy into mechanical energy; especially for the high-quality fuel, when the traditional gas-steam combined cycle technology is adopted, the thermal efficiency still has room for improvement.
People need to simply, actively, safely and efficiently utilize heat energy to obtain power, and particularly need to adopt an advanced technology to fully exert the value of high-quality fuel; with the improvement of the technical level of the gas turbine device, the working temperature of the fuel gas is increased, and the temperature of the discharged fuel gas is higher and higher, so that the irreversible loss of a steam power device adopting Rankine cycle as the working principle in the traditional gas-steam combined cycle device is increased. Therefore, the invention provides a gas turbine type combined cycle power plant which takes high-quality fuel as driving energy and has high heat efficiency, strong safety and small irreversible loss.
The invention content is as follows:
the invention mainly aims to provide a gas turbine type combined cycle power device, and the specific invention content is explained in terms of items as follows:
1. the combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser and evaporator make up; the external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through a high-temperature heat exchanger; the condenser is provided with a condensate pipeline, a steam channel of the evaporator is communicated with the high-temperature heat exchanger after the condensate pipeline is communicated with the evaporator through a circulating pump, a steam channel of the second compressor is communicated with the high-temperature heat exchanger, a steam channel of the high-temperature heat exchanger is communicated with the expander, and a low-pressure steam channel of the evaporator is communicated with the evaporator and is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine and the expander are connected with the compressor and the second compressor and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine and the expander are connected with the compressor, the second compressor and the circulating pump and transmit power.
2. A gas turbine type combined cycle power plant, wherein a high temperature heat regenerator is added in the gas turbine type combined cycle power plant described in item 1, the evaporator is adjusted to be communicated with the high temperature heat exchanger through a steam channel, the evaporator is adjusted to be communicated with the high temperature heat exchanger through the high temperature heat regenerator, the second compressor is adjusted to be communicated with the high temperature heat exchanger through a steam channel, the second compressor is adjusted to be communicated with the high temperature heat exchanger through the high temperature heat regenerator, and the gas turbine type combined cycle power plant is formed.
3. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and heat supply device make up; the external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through the high-temperature heat exchanger and the evaporator; the condenser is provided with a condensate pipeline, a steam channel of the evaporator is communicated with the high-temperature heat exchanger after the condensate pipeline is communicated with the evaporator through a circulating pump, a steam channel of the second compressor is communicated with the high-temperature heat exchanger, a steam channel of the high-temperature heat exchanger is communicated with the expander, a low-pressure steam channel of the expander is communicated with the heat supply device, and a low-pressure steam channel of the heat supply device is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel communicated with the outside, the heat supplier is also provided with a heated medium channel communicated with the outside, and the gas turbine and the expander are connected with the compressor and the second compressor and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine and the expander are connected with the compressor, the second compressor and the circulating pump and transmit power.
4. The combined cycle power plant of the gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and second high-temperature heat exchanger make up; the external part of the gas turbine is provided with an air channel communicated with the compressor, the compressor is also provided with an air channel communicated with the combustion chamber, the external part of the gas turbine is also provided with a fuel channel communicated with the combustion chamber, the combustion chamber is also provided with a gas channel communicated with the gas turbine, and the gas channel of the gas turbine is also communicated with the external part through a high-temperature heat exchanger and a second high-temperature heat exchanger; the condenser is provided with a condensate pipeline, a steam channel of the evaporator is communicated with the high-temperature heat exchanger after the condensate pipeline is communicated with the evaporator through a circulating pump, the high-temperature heat exchanger is also provided with a steam channel which is communicated with the expander, the second compressor is provided with a steam channel which is communicated with the second high-temperature heat exchanger, the second high-temperature heat exchanger is also provided with a steam channel which is communicated with the expander through a middle steam inlet channel, and the expander is also provided with a low-pressure steam channel of the evaporator which is communicated with the evaporator and is also provided with a low-pressure steam channel which is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine and the expander are connected with the compressor and the second compressor and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine and the expander are connected with the compressor, the second compressor and the circulating pump and transmit power.
5. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser and evaporator make up; the external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through a high-temperature heat exchanger; the condenser is provided with a condensate pipeline, a steam channel of the evaporator is communicated with the expander through a middle steam inlet channel after the condensate pipeline is communicated with the evaporator through a circulating pump, a steam channel of the second compressor is communicated with the expander through a high-temperature heat exchanger, and a low-pressure steam channel of the evaporator is communicated with the evaporator and is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine and the expander are connected with the compressor and the second compressor and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine and the expander are connected with the compressor, the second compressor and the circulating pump and transmit power.
6. A gas turbine type combined cycle power plant, wherein a high temperature heat regenerator is added in the gas turbine type combined cycle power plant of item 5, a steam channel of a second compressor is communicated with an expander through a high temperature heat exchanger and adjusted to be communicated with the expander through the high temperature heat regenerator and the high temperature heat exchanger, a low pressure steam channel of the expander is communicated with an evaporator and adjusted to be communicated with the expander through a low pressure steam channel of the expander and the high temperature heat exchanger, and the expander is communicated with the evaporator through the high temperature heat regenerator to form the gas turbine type combined cycle power plant.
7. The combined cycle power plant of the gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and second expander make up; the external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through a high-temperature heat exchanger; the condenser is provided with a condensate pipeline, a steam channel of the evaporator is communicated with a second expander after the condensate pipeline is communicated with the evaporator through a circulating pump, the second expander is also provided with a low-pressure steam channel which is communicated with the evaporator, the second compressor is provided with a steam channel which is communicated with the expander through a high-temperature heat exchanger, the expander is also provided with a low-pressure steam channel which is communicated with the evaporator, and the evaporator is also provided with a low-pressure steam channel which is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine, the expander and the second expander are connected with the compressor and the second compressor and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine, the expander and the second expander are connected with the compressor, the second compressor and the circulating pump and transmit power.
8. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and heat supply device make up; the external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through a high-temperature heat exchanger; the condenser is provided with a condensate pipeline, a rear evaporator is communicated with the evaporator through a circulating pump, a steam channel is communicated with the high-temperature heat exchanger, a second compressor is provided with a steam channel communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is also provided with a steam channel communicated with the expander, the expander is also provided with a low-pressure steam channel, the rear evaporator is also provided with a low-pressure steam channel communicated with the evaporator, the heat supplier is also provided with a low-pressure steam channel which is respectively communicated with the second compressor and the condenser; the condenser is also provided with a cooling medium channel communicated with the outside, the heat supplier is also provided with a heated medium channel communicated with the outside, and the gas turbine and the expander are connected with the compressor and the second compressor and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine and the expander are connected with the compressor, the second compressor and the circulating pump and transmit power.
9. A gas turbine type combined cycle power plant, which is characterized in that in any one of the gas turbine type combined cycle power plants 1-2 and 5-8, a gas channel of a gas turbine is communicated with the outside through a high-temperature heat exchanger and is adjusted to be communicated with the outside through a high-temperature heat exchanger and an evaporator, so that the gas turbine type combined cycle power plant is formed.
10. A gas turbine type combined cycle power plant, wherein in the gas turbine type combined cycle power plant of item 4, a gas channel of a gas turbine is communicated with the outside through a high temperature heat exchanger and a second high temperature heat exchanger, and is adjusted to be communicated with the outside through the high temperature heat exchanger and the second high temperature heat exchanger, so as to form the gas turbine type combined cycle power plant.
11. A gas turbine type combined cycle power device is characterized in that a gas heat regenerator is added in any one of the gas turbine type combined cycle power devices in items 1-10, an air channel of a compressor is communicated with a combustion chamber and adjusted to be communicated with the combustion chamber through the gas heat regenerator, a gas channel of the gas turbine is communicated with a high-temperature heat exchanger and adjusted to be communicated with the high-temperature heat exchanger through the gas heat regenerator, and thus the gas turbine type combined cycle power device is formed.
12. A gas turbine type combined cycle power device is characterized in that a low-temperature heat regenerator and a second circulating pump are added in any one of the gas turbine type combined cycle power devices 1-11, a condenser with a condensate pipeline is communicated with an evaporator through the circulating pump and adjusted to be communicated with the low-temperature heat regenerator through the circulating pump, a middle steam extraction channel is additionally arranged on the second compressor and communicated with the low-temperature heat regenerator, and the low-temperature heat regenerator is communicated with the evaporator through the second circulating pump with the condensate pipeline, so that the gas turbine type combined cycle power device is formed.
13. The gas turbine type combined cycle power plant mainly comprises a compressor, a gas turbine, a combustion chamber, a dual-energy compressor, an expansion speed increaser, a diffuser pipe, a high-temperature heat exchanger, a condenser and an evaporator; the external part of the air channel is communicated with the compressor, the compressor is also provided with an air channel which is communicated with the combustion chamber, the external part of the air channel is also provided with a fuel channel which is communicated with the combustion chamber, the combustion chamber is also provided with a gas channel which is communicated with the gas turbine, and the gas turbine is also provided with a gas channel which is communicated with the external part through a high-temperature heat exchanger; the condenser is provided with a condensate pipeline, a steam channel of the evaporator is communicated with the high-temperature heat exchanger after the condensate pipeline is communicated with the evaporator through a diffuser pipe, the dual-energy compressor is provided with a steam channel which is communicated with the high-temperature heat exchanger, the high-temperature heat exchanger is also provided with a steam channel which is communicated with the expansion speed increaser, and the low-pressure steam channel of the evaporator is communicated with the dual-energy compressor and the condenser respectively after the expansion speed increaser is also provided with a low-pressure steam channel which is communicated with the evaporator; the condenser is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine and the expansion speed increaser are connected with the compressor and the dual-energy compressor and transmit power to form the gas turbine type combined cycle power device.
14. A gas turbine type combined cycle power plant, wherein in the gas turbine type combined cycle power plant of item 13, a gas channel of a gas turbine is communicated with the outside through a high temperature heat exchanger and adjusted to be communicated with the outside through a high temperature heat exchanger and an evaporator, thereby forming the gas turbine type combined cycle power plant.
15. A gas turbine type combined cycle power device is characterized in that a gas heat regenerator is added in any one of the gas turbine type combined cycle power devices in items 13-14, an air channel of a compressor is communicated with a combustion chamber and adjusted to be communicated with the combustion chamber through the gas heat regenerator, a gas channel of the gas turbine is communicated with a high-temperature heat exchanger and adjusted to be communicated with the high-temperature heat exchanger through the gas heat regenerator, and thus the gas turbine type combined cycle power device is formed.
Description of the drawings:
FIG. 1 is a schematic 1 st thermodynamic system diagram of a gas turbine combined cycle power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of a 2 nd principle of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 3 is a 3 rd principle thermodynamic system diagram of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 4 is a diagram of a 4 th principle thermodynamic system of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 5 is a schematic thermodynamic system diagram of a 5 th principle of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 6 is a 6 th principle thermodynamic system diagram of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 7 is a 7 th principle thermodynamic system diagram of a gas turbine 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 gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 9 is a 9 th principle thermodynamic system diagram of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 10 is a 10 th principle thermodynamic system diagram of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 11 is a schematic 11 th principal thermodynamic system diagram of a gas turbine combined cycle power plant provided in accordance with the present invention.
FIG. 12 is a 12 th principle thermodynamic system diagram of a gas turbine combined cycle power plant provided in accordance with the present invention.
In the figure, A is a compressor, B is a gas turbine, C is a combustion chamber, and D is a gas regenerator; 1-a second compressor, 2-an expander, 3-a circulating pump, 4-a high-temperature heat exchanger, 5-a condenser, 6-an evaporator (a waste heat boiler), 7-a high-temperature heat regenerator, 8-a heat supplier, 9-a second high-temperature heat exchanger, 10-a second expander, 11-a low-temperature heat regenerator, 12-a second circulating pump, 13-a dual-energy compressor, 14-an expansion speed increaser and 15-a diffuser pipe.
Here, it is stated that:
taking fig. 3 as an example, the combustion gas discharged from the gas turbine B passes through the high-temperature heat exchanger 4 and the evaporator 6 in sequence to gradually release heat and reduce temperature; in order not to overcomplicate the drawing and to reduce the drawing effort, the applicant did not connect the lines that characterize the gas channels in fig. 3; in the expression, the applicant indicates the sequence in which the gas discharged by the gas turbine B flows through the different components.
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 gas turbine type combined cycle power plant shown in fig. 1 is realized by:
(1) structurally, the system mainly comprises a compressor, a gas turbine, a combustion chamber, a second compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser and an evaporator; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C through an air channel, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with the gas turbine B through a gas channel, and the gas turbine B is also communicated with the outside through the high-temperature heat exchanger 4; the condenser 5 has a condensate pipeline, the evaporator 6 is communicated with the high-temperature heat exchanger 4 through a steam channel after the condensate pipeline is communicated with the evaporator 6 through the circulating pump 3, the second compressor 1 is communicated with the high-temperature heat exchanger 4 through a steam channel, the high-temperature heat exchanger 4 is also communicated with the expander 2 through a steam channel, the expander 2 is also communicated with the evaporator 6 through a low-pressure steam channel, and the evaporator 6 is communicated with the second compressor 1 and the condenser 5 respectively through a low-pressure steam channel; the condenser 5 is also communicated with the outside through a cooling medium channel, and the gas turbine B and the expander 2 are connected with the compressor A and the second compressor 1 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the evaporator 6 to absorb heat, raise temperature, vaporize and overheat, then enters the high-temperature heat exchanger 4 to absorb heat and raise temperature, and the steam discharged by the second compressor 1 enters the high-temperature heat exchanger 4 to absorb heat and raise temperature; the steam discharged by the high-temperature heat exchanger 4 flows through the expander 2 to reduce the pressure and do work, the low-pressure steam discharged by the expander 2 flows through the evaporator 6 to release heat and reduce the temperature, and then the low-pressure steam is divided into two paths, wherein the first path enters the second compressor 1 to increase the pressure and the temperature, and the second path enters the condenser 5 to release heat and condense; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 2 is realized by:
(1) structurally, in the gas turbine type combined cycle power plant shown in fig. 1, a high temperature regenerator is added, the communication between the evaporator 6 having a steam channel and the high temperature heat exchanger 4 is adjusted so that the evaporator 6 having a steam channel is communicated with the high temperature heat exchanger 4 through the high temperature regenerator 7, and the communication between the second compressor 1 having a steam channel and the high temperature heat exchanger 4 is adjusted so that the second compressor 1 having a steam channel is communicated with the high temperature heat exchanger 4 through the high temperature regenerator 7.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3, enters the evaporator 6, absorbs heat, heats, vaporizes and overheats, flows through the high-temperature heat regenerator 7, absorbs heat, heats, and then enters the high-temperature heat exchanger 4 to absorb heat and heat; steam discharged by the compressor 1 flows through the high-temperature heat regenerator 7 to absorb heat and raise the temperature, and then enters the high-temperature heat exchanger 4 to absorb heat and raise the temperature; the steam discharged by the high-temperature heat exchanger 4 flows through the expander 2 to reduce the pressure and do work, the low-pressure steam discharged by the expander 2 flows through the high-temperature heat regenerator 7 and the evaporator 6 to gradually release heat and reduce the temperature, and then the low-pressure steam is divided into two paths, wherein the first path enters the second compressor 1 to increase the pressure and the temperature, and the second path enters the condenser 5 to release heat and condense; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 3 is realized by:
(1) structurally, the system mainly comprises a compressor, a gas turbine, a combustion chamber, a second compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and a heat supply device; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with a gas channel which is also communicated with a gas turbine B, and the gas channel of the gas turbine B is also communicated with the outside through a high-temperature heat exchanger 4 and an evaporator 6; the condenser 5 has a condensate pipeline, after the condensate pipeline is communicated with the evaporator 6 through the circulating pump 3, the evaporator 6 has a steam channel communicated with the high-temperature heat exchanger 4, the second compressor 1 has a steam channel communicated with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 also has a steam channel communicated with the expander 2, the expander 2 also has a low-pressure steam channel communicated with the heat supplier 8, and then the heat supplier 8 has a low-pressure steam channel communicated with the second compressor 1 and the condenser 5 respectively; the condenser 5 is also communicated with the outside through a cooling medium channel, the heat supply device 8 is also communicated with the outside through a heated medium channel, and the gas turbine B and the expander 2 are connected with the compressor A and the second compressor 1 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 and the evaporator 6 to gradually release heat and reduce temperature, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the evaporator 6 to absorb heat, raise temperature, vaporize and overheat, then enters the high-temperature heat exchanger 4 to absorb heat and raise temperature, and the steam discharged by the second compressor 1 enters the high-temperature heat exchanger 4 to absorb heat and raise temperature; the steam discharged by the high-temperature heat exchanger 4 flows through the expander 2 to reduce the pressure and do work, the low-pressure steam discharged by the expander 2 flows through the heat supplier 8 to release heat and reduce the temperature, and then the low-pressure steam is divided into two paths, wherein the first path enters the second compressor 1 to increase the pressure and the temperature, and the second path enters the condenser 5 to release heat and condense; the fuel provides driving heat load through the combustion chamber C, the cooling medium takes away low-temperature heat load through the condenser 5, and the heated medium takes away medium-temperature heat load through the heater 8; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 4 is realized by:
(1) structurally, the system mainly comprises a compressor, a gas turbine, a combustion chamber, a second compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and a second high-temperature heat exchanger; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C through an air channel, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with the gas turbine B through a gas channel, and the gas turbine B is also communicated with the outside through the high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9; the condenser 5 has a condensate pipeline which is communicated with the evaporator 6 through the circulating pump 3, then the evaporator 6 has a steam channel which is communicated with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 also has a steam channel which is communicated with the expander 2, the second compressor 1 has a steam channel which is communicated with the second high-temperature heat exchanger 9, the second high-temperature heat exchanger 9 also has a steam channel which is communicated with the expander 2 through a middle steam inlet channel, the expander 2 also has a low-pressure steam channel which is communicated with the evaporator 6, then the evaporator 6 has a low-pressure steam channel which is respectively communicated with the second compressor 1 and the condenser 5; the condenser 5 is also communicated with the outside through a cooling medium channel, and the gas turbine B and the expander 2 are connected with the compressor A and the second compressor 1 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9 to gradually release heat and reduce temperature, and is discharged outwards; the condensate of the condenser 5 flows through the circulating pump 3 and is boosted, flows through the evaporator 6 and the high-temperature heat exchanger 4 to absorb heat, raise temperature, vaporize and overheat, and then enters the expansion machine 2 to reduce pressure and do work; the steam discharged by the second compressor 1 flows through the second high-temperature heat exchanger 9 to absorb heat and raise temperature, and then enters the expansion machine 2 through the middle steam inlet channel to reduce pressure and do work; the low-pressure steam discharged by the expander 2 is subjected to heat release and temperature reduction through the evaporator 6, and then is divided into two paths, wherein the first path enters the second compressor 1 for pressure rise and temperature rise, and the second path enters the condenser 5 for heat release and condensation; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 5 is realized by:
(1) structurally, the system mainly comprises a compressor, a gas turbine, a combustion chamber, a second compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser and an evaporator; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C through an air channel, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with the gas turbine B through a gas channel, and the gas turbine B is also communicated with the outside through the high-temperature heat exchanger 4; the condenser 5 has a condensate pipeline which is communicated with the evaporator 6 through a circulating pump 3, and then the evaporator 6 has a steam channel which is communicated with the expander 2 through a middle steam inlet channel, the second compressor 1 has a steam channel which is communicated with the expander 2 through a high-temperature heat exchanger 4, and the expander 2 also has a low-pressure steam channel which is communicated with the evaporator 6 and then the evaporator 6 has a low-pressure steam channel which is communicated with the second compressor 1 and the condenser 5 respectively; the condenser 5 is also communicated with the outside through a cooling medium channel, and the gas turbine B and the expander 2 are connected with the compressor A and the second compressor 1 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the evaporator 6, absorbs heat, raises temperature, vaporizes and overheats, and then enters the expansion machine 2 through the middle steam inlet channel to reduce pressure and work; the steam discharged by the second compressor 1 flows through the high-temperature heat exchanger 4 to absorb heat and raise temperature, and then enters the expander 2 to reduce pressure and do work; the low-pressure steam discharged by the expander 2 is subjected to heat release and temperature reduction through the evaporator 6, and then is divided into two paths, wherein the first path enters the second compressor 1 for pressure rise and temperature rise, and the second path enters the condenser 5 for heat release and condensation; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 6 is realized by:
(1) structurally, in the gas turbine type combined cycle power plant shown in fig. 5, a high temperature heat regenerator is added, a steam passage of the second compressor 1 is communicated with the expander 2 through the high temperature heat exchanger 4 and adjusted to be a steam passage of the second compressor 1 is communicated with the expander 2 through the high temperature heat regenerator 7 and the high temperature heat exchanger 4, and a low pressure steam passage of the expander 2 is communicated with the evaporator 6 and adjusted to be a low pressure steam passage of the expander 2 is communicated with the evaporator 6 through the high temperature heat regenerator 7.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the evaporator 6, absorbs heat, raises temperature, vaporizes and overheats, and then enters the expansion machine 2 through the middle steam inlet channel to reduce pressure and work; the steam discharged by the second compressor 1 flows through the high-temperature heat regenerator 7 and the high-temperature heat exchanger 4 to gradually absorb heat and raise temperature, and then enters the expansion machine 2 to reduce pressure and do work; the low-pressure steam discharged by the expander 2 flows through the high-temperature heat regenerator 7 and the evaporator 6 to gradually release heat and reduce temperature, and then is divided into two paths, wherein the first path enters the second compressor 1 to be boosted and heated, and the second path enters the condenser 5 to release heat and condense; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 7 is realized by:
(1) structurally, the system mainly comprises a compressor, a gas turbine, a combustion chamber, a second compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and a second expander; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C through an air channel, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with the gas turbine B through a gas channel, and the gas turbine B is also communicated with the outside through the high-temperature heat exchanger 4; the condenser 5 has a condensate pipeline which is communicated with the evaporator 6 through the circulating pump 3, then the evaporator 6 has a steam channel which is communicated with the second expander 10, the second expander 10 also has a low-pressure steam channel which is communicated with the evaporator 6, the second compressor 1 has a steam channel which is communicated with the expander 2 through the high-temperature heat exchanger 4, the expander 2 also has a low-pressure steam channel which is communicated with the evaporator 6, and the evaporator 6 also has a low-pressure steam channel which is respectively communicated with the second compressor 1 and the condenser 5; the condenser 5 is also communicated with the outside through a cooling medium channel, and the gas turbine B, the expander 2 and the second expander 10 are connected with the compressor A and the second compressor 1 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the evaporator 6, the condensate absorbs heat, is heated, vaporized and overheated, then enters the second expander 10 to reduce the pressure and do work, and the low-pressure steam discharged by the second expander 10 enters the evaporator 6 to release heat and reduce the temperature; the steam discharged by the second compressor 1 passes through the high-temperature heat exchanger 4 to absorb heat and raise temperature, passes through the expander 2 to reduce pressure and do work, and the low-pressure steam discharged by the expander 2 enters the evaporator 6 to release heat and lower temperature; the low-pressure steam discharged by the evaporator 6 is divided into two paths, wherein the first path enters the second compressor 1 to be boosted and heated, and the second path enters the condenser 5 to release heat and be condensed; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B, the expander 2, and the second expander 10 provide power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 8 is realized by:
(1) structurally, the system mainly comprises a compressor, a gas turbine, a combustion chamber, a second compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and a heat supply device; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C through an air channel, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with the gas turbine B through a gas channel, and the gas turbine B is also communicated with the outside through the high-temperature heat exchanger 4; the condenser 5 has a condensate pipeline, the evaporator 6 is communicated with the high-temperature heat exchanger 4 through a steam channel after the circulation pump 3 is communicated with the evaporator 6, the second compressor 1 is communicated with the high-temperature heat exchanger 4 through a steam channel, the high-temperature heat exchanger 4 is also communicated with the expander 2 through a steam channel, the expander 2 is also communicated with the evaporator 6 through a low-pressure steam channel, the evaporator 6 is communicated with the heat supply device 8 through a low-pressure steam channel, and the heat supply device 8 is also communicated with the second compressor 1 and the condenser 5 through a low-pressure steam channel; the condenser 5 is also communicated with the outside through a cooling medium channel, the heat supply device 8 is also communicated with the outside through a heated medium channel, and the gas turbine B and the expander 2 are connected with the compressor A and the second compressor 1 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the evaporator 6 to absorb heat, raise temperature, vaporize and overheat, then enters the high-temperature heat exchanger 4 to absorb heat and raise temperature, and the steam discharged by the second compressor 1 enters the high-temperature heat exchanger 4 to absorb heat and raise temperature; the steam discharged by the high-temperature heat exchanger 4 flows through the expander 2 to reduce the pressure and do work, the low-pressure steam discharged by the expander 2 flows through the evaporator 6 and the heat supplier 8 to gradually release heat and reduce the temperature, and then the low-pressure steam is divided into two paths, wherein the first path enters the second compressor 1 to increase the pressure and the temperature, and the second path enters the condenser 5 to release heat and condense; the fuel provides driving heat load through the combustion chamber C, the cooling medium takes away low-temperature heat load through the condenser 5, and the heated medium takes away medium-temperature heat load through the heater 8; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 9 is realized by:
in the gas turbine type combined cycle power plant shown in fig. 1, the gas turbine B having a gas passage communicating with the outside through the high temperature heat exchanger 4 is adjusted to the gas turbine B having a gas passage communicating with the outside through the high temperature heat exchanger 4 and the evaporator 6; the gas discharged by the gas turbine B flows through the high-temperature heat exchanger 4 and the evaporator 6 to gradually release heat and reduce temperature, and then is discharged outwards; the condensate entering the evaporator 6 obtains the heat load provided by the low-pressure steam and the fuel gas at the same time, and the condensate is heated, vaporized and superheated and then enters the high-temperature heat exchanger 4 to form the combined cycle power device of the fuel gas turbine type.
The gas turbine type combined cycle power plant shown in fig. 10 is realized by:
in the gas turbine type combined cycle power plant shown in fig. 1, a gas regenerator is added, an air channel of a compressor A is communicated with a combustion chamber C and adjusted to be communicated with the combustion chamber C through a gas regenerator D, a gas channel of a gas turbine B is communicated with a high-temperature heat exchanger 4 and adjusted to be communicated with the high-temperature heat exchanger 4 through a gas channel of the gas turbine B through the gas regenerator D; air discharged by the compressor A flows through the gas heat regenerator D and absorbs heat, then enters the combustion chamber C, and external fuel enters the combustion chamber C to be mixed with the air and combusted into high-temperature gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the gas heat regenerator D and the high-temperature heat exchanger 4 to gradually release heat and reduce temperature, and then is discharged outwards, so that the gas turbine type combined cycle power device is formed.
The gas turbine type combined cycle power plant shown in fig. 11 is realized by:
(1) structurally, in the gas turbine type combined cycle power plant shown in fig. 1, a low-temperature heat regenerator and a second circulating pump are added, a condensate pipeline of a condenser 5 is communicated with an evaporator 6 through a circulating pump 3 and adjusted to be that the condenser 5 is communicated with the low-temperature heat regenerator 11 through the circulating pump 3, a middle steam extraction channel is additionally arranged on the second compressor 1 and is communicated with a low-temperature heat regenerator 14, and the low-temperature heat regenerator 11 is communicated with the evaporator 6 through a condensate pipeline of a second circulating pump 12.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is boosted by the circulating pump 3 and enters the low-temperature heat regenerator 11, and is mixed with the extracted steam from the second compressor 1 to absorb heat and raise the temperature, and the extracted steam is mixed with the condensate to release heat and condense; the condensate of the low-temperature heat regenerator 11 is boosted by a second circulating pump 12 and enters the evaporator 6 to absorb heat, raise temperature, vaporize and overheat, then enters the high-temperature heat exchanger 4 to absorb heat and raise temperature, and the steam discharged by the second compressor 1 enters the high-temperature heat exchanger 4 to absorb heat and raise temperature; the steam discharged by the high-temperature heat exchanger 4 flows through the expander 2 to reduce the pressure and do work, the low-pressure steam discharged by the expander 2 flows through the evaporator 6 to release heat and reduce the temperature, and then the low-pressure steam is divided into two paths, wherein the first path enters the second compressor 1, and the second path enters the condenser 5 to release heat and condense; the low-pressure steam entering the second compressor 1 is compressed to a certain degree and then divided into two paths, wherein the first path enters the low-temperature heat regenerator 11 through the middle steam extraction channel, and the second path continues to increase the pressure and the temperature; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expander 2 supply power to the compressor a, the second compressor 1, and the outside, forming a gas turbine type combined cycle power plant.
The gas turbine type combined cycle power plant shown in fig. 12 is realized by:
(1) structurally, the device mainly comprises a compressor, a gas turbine, a combustion chamber, a dual-energy compressor, an expansion speed increaser, a diffuser pipe, a high-temperature heat exchanger, a condenser and an evaporator; an air channel is arranged outside and communicated with the compressor A, the compressor A is also communicated with the combustion chamber C through an air channel, a fuel channel is also arranged outside and communicated with the combustion chamber C, the combustion chamber C is also communicated with the gas turbine B through a gas channel, and the gas turbine B is also communicated with the outside through the high-temperature heat exchanger 4; the condenser 5 has a condensate pipeline which is communicated with the evaporator 6 through a diffuser 15, then the evaporator 6 has a steam channel which is communicated with the high-temperature heat exchanger 4, the dual-energy compressor 13 has a steam channel which is communicated with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 also has a steam channel which is communicated with the expansion speed increaser 14, the expansion speed increaser 14 also has a low-pressure steam channel which is communicated with the evaporator 6, then the evaporator 6 has a low-pressure steam channel which is respectively communicated with the dual-energy compressor 13 and the condenser 5; the condenser 5 is also communicated with the outside through a cooling medium channel, and the gas turbine B and the expansion speed increaser 14 are connected with the compressor A and the dual-energy compressor 13 and transmit power.
(2) In the flow, external air flows through the compressor A, is boosted and heated, then enters the combustion chamber C, and external fuel enters the combustion chamber C, is mixed with air and is combusted into high-temperature fuel gas; the gas flows through the gas turbine B to reduce pressure and do work, flows through the high-temperature heat exchanger 4 to release heat, and then is discharged outwards; the condensate of the condenser 5 is subjected to speed reduction and pressure increase through a diffuser pipe 15, enters the evaporator 6, absorbs heat, heats, vaporizes and overheats, then enters the high-temperature heat exchanger 4 to absorb heat and heat, and the steam discharged by the dual-energy compressor 13 enters the high-temperature heat exchanger 4 to absorb heat and heat; the steam discharged by the high-temperature heat exchanger 4 flows through the expansion speed increaser 2 to reduce the pressure, do work and increase the speed, the low-pressure steam discharged by the expansion speed increaser 2 flows through the evaporator 6 to release heat and reduce the temperature, and then is divided into two paths, wherein the first path enters the dual-energy compressor 13 to increase the pressure, raise the temperature and reduce the speed, and the second path enters the condenser 5 to release heat and condense; the fuel provides driving heat load through the combustion chamber C, and the cooling medium takes away low-temperature heat load through the condenser 5; the gas turbine B and the expansion speed increaser 2 provide power for the compressor A, the dual-energy compressor 13 and the outside to form a gas turbine type combined cycle power device.
The effect that the technology of the invention can realize-the gas turbine type combined cycle power plant proposed by the invention has the following effects and advantages:
(1) the gas turbine circulation technology realizes the efficient utilization of the high-temperature section of the gas and improves the heat efficiency of the device.
(2) In the process of utilizing the middle temperature/low temperature section of the fuel gas, the circulating working medium completes high-temperature heat absorption under low pressure, the temperature difference loss between the circulating working medium and the fuel gas is small, and the heat efficiency of a system and the safety of a device are improved.
(3) The condensation process realizes low-temperature heat release, the temperature difference loss between the circulating working medium and the environment is controllable, and the heat efficiency is improved.
(4) The low-pressure operation mode is adopted in the high-temperature area/the medium-temperature area, and the contradiction that the heat efficiency, the circulating medium parameters and the pressure and temperature resistance of the pipe are difficult to reconcile in the traditional steam power device is solved, so that the temperature difference loss between the fuel gas and the circulating medium is greatly reduced, and the heat efficiency is greatly improved.
(5) The equipment is shared, the heat absorption process of the lower cycle, namely the Rankine cycle, is increased, and the heat efficiency is improved.
(6) The number of core equipment is small, and the system investment is reduced, and the heat efficiency is improved.
(7) On the premise of realizing high thermal efficiency, low-pressure operation can be selected, so that the operation safety of the device is greatly improved.
(8) The expansion speed increaser realizes pressure reduction, flexibly and effectively reduces the manufacturing difficulty and cost of the power device.
(9) The dual-energy compressor/diffuser pipe realizes pressure boosting, and the manufacturing difficulty and the cost of the power device are flexibly and effectively reduced.
(10) The utilization value of high-quality fuel is improved, and the expansion of the application range and the value of the high-quality fuel and the high-efficiency thermal technology is facilitated.

Claims (15)

1. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser and evaporator make up; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4); the condenser (5) is provided with a condensate pipeline, a steam channel of the evaporator (6) is communicated with the high-temperature heat exchanger (4) after the condensate pipeline is communicated with the evaporator (6) through the circulating pump (3), a steam channel of the second compressor (1) is communicated with the high-temperature heat exchanger (4), the steam channel of the high-temperature heat exchanger (4) is communicated with the expander (2), a low-pressure steam channel of the evaporator (6) is communicated with the evaporator (6), and a low-pressure steam channel of the evaporator (6) is respectively communicated with the second compressor (1) and the condenser (5); the condenser (5) is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine (B) and the expander (2) are connected with the compressor (A) and the second compressor (1) and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine (B) and the expander (2) are connected with the compressor (A), the second compressor (1) and the circulating pump (3) and transmit power.
2. A gas turbine type combined cycle power device is characterized in that a high-temperature heat regenerator is added in the gas turbine type combined cycle power device disclosed by claim 1, a steam channel of an evaporator (6) is communicated with a high-temperature heat exchanger (4) and adjusted to be communicated with the high-temperature heat exchanger (4) through a steam channel of the evaporator (6), and a steam channel of a second compressor (1) is communicated with the high-temperature heat exchanger (4) and adjusted to be communicated with the high-temperature heat exchanger (4) through a steam channel of the second compressor (1), so that the high-temperature heat exchanger (4) is communicated with the steam channel of the second compressor (1) through the high-temperature heat regenerator (7), and the gas turbine type combined cycle power device is formed.
3. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and heat supply device make up; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4) and the evaporator (6); the condenser (5) is provided with a condensate pipeline, a steam channel of the evaporator (6) is communicated with the high-temperature heat exchanger (4) after the condensate pipeline is communicated with the evaporator (6) through the circulating pump (3), a steam channel of the second compressor (1) is communicated with the high-temperature heat exchanger (4), the steam channel of the high-temperature heat exchanger (4) is communicated with the expander (2), a low-pressure steam channel of the expander (2) is communicated with the heat supply device (8), and a low-pressure steam channel of the heat supply device (8) is respectively communicated with the second compressor (1) and the condenser (5); the condenser (5) is also provided with a cooling medium channel communicated with the outside, the heat supply device (8) is also provided with a heated medium channel communicated with the outside, and the gas turbine (B) and the expander (2) are connected with the compressor (A) and the second compressor (1) and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine (B) and the expander (2) are connected with the compressor (A), the second compressor (1) and the circulating pump (3) and transmit power.
4. The combined cycle power plant of the gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and second high-temperature heat exchanger make up; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4) and the second high-temperature heat exchanger (9); the condenser (5) is provided with a condensate pipeline, a steam channel of the evaporator (6) is communicated with the high-temperature heat exchanger (4) after the condensate pipeline is communicated with the evaporator (6) through the circulating pump (3), the high-temperature heat exchanger (4) is also provided with a steam channel to be communicated with the expander (2), the second compressor (1) is provided with a steam channel to be communicated with the second high-temperature heat exchanger (9), the second high-temperature heat exchanger (9) is also provided with a steam channel to be communicated with the expander (2) through a middle steam inlet channel, the expander (2) is also provided with a low-pressure steam channel, and the low-pressure steam channel of the evaporator (6) is also provided with a low-pressure steam channel to be communicated with the second compressor (1) and the condenser (5) respectively; the condenser (5) is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine (B) and the expander (2) are connected with the compressor (A) and the second compressor (1) and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine (B) and the expander (2) are connected with the compressor (A), the second compressor (1) and the circulating pump (3) and transmit power.
5. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser and evaporator make up; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4); the condenser (5) is provided with a condensate pipeline, a steam channel of the evaporator (6) is communicated with the expander (2) through a middle steam inlet channel after the condensate pipeline is communicated with the evaporator (6) through the circulating pump (3), the second compressor (1) is provided with a steam channel which is communicated with the expander (2) through the high-temperature heat exchanger (4), the expander (2) is also provided with a low-pressure steam channel, and the evaporator (6) is provided with a low-pressure steam channel which is communicated with the evaporator (6) and is communicated with the second compressor (1) and the condenser (5) respectively; the condenser (5) is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine (B) and the expander (2) are connected with the compressor (A) and the second compressor (1) and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine (B) and the expander (2) are connected with the compressor (A), the second compressor (1) and the circulating pump (3) and transmit power.
6. A gas turbine type combined cycle power device is characterized in that a high-temperature heat regenerator is added in the gas turbine type combined cycle power device disclosed by claim 5, a steam channel of a second compressor (1) is communicated with an expander (2) through a high-temperature heat exchanger (4) and adjusted to be communicated with the expander (2) through a steam channel of the second compressor (1) through a high-temperature heat regenerator (7) and the high-temperature heat exchanger (4), a low-pressure steam channel of the expander (2) is communicated with an evaporator (6) and adjusted to be communicated with the expander (2) through a low-pressure steam channel of the expander (2) and the high-temperature heat regenerator (7) to be communicated with the evaporator (6), and the gas turbine type combined cycle power device is formed.
7. The combined cycle power plant of the gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and second expander make up; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4); the condenser (5) is provided with a condensate pipeline, the evaporator (6) is communicated with the evaporator (6) through a circulating pump (3) and then is provided with a steam channel communicated with a second expander (10), the second expander (10) is also provided with a low-pressure steam channel communicated with the evaporator (6), the second compressor (1) is provided with a steam channel communicated with the expander (2) through a high-temperature heat exchanger (4), the expander (2) is also provided with a low-pressure steam channel communicated with the evaporator (6), and the evaporator (6) is also provided with a low-pressure steam channel communicated with the second compressor (1) and the condenser (5) respectively; the condenser (5) is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine (B), the expander (2) and the second expander (10) are connected with the compressor (A) and the second compressor (1) and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine (B), the expander (2) and the second expander (10) are connected with the compressor (A), the second compressor (1) and the circulating pump (3) and transmit power.
8. The combined circulating power plant of gas turbine type, mainly by the compressor, gas turbine, combustion chamber, second compressor, expander, circulating pump, high-temperature heat exchanger, condenser, evaporator and heat supply device make up; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4); the condenser (5) is provided with a condensate pipeline, a steam channel of the evaporator (6) is communicated with the high-temperature heat exchanger (4) after the condensate pipeline is communicated with the evaporator (6) through the circulating pump (3), a steam channel of the second compressor (1) is communicated with the high-temperature heat exchanger (4), the steam channel of the high-temperature heat exchanger (4) is communicated with the expander (2), the low-pressure steam channel of the evaporator (6) is communicated with the evaporator (6), a low-pressure steam channel of the evaporator (6) is communicated with the heat supply device (8), and the low-pressure steam channel of the heat supply device (8) is respectively communicated with the second compressor (1) and the condenser (5); the condenser (5) is also provided with a cooling medium channel communicated with the outside, the heat supply device (8) is also provided with a heated medium channel communicated with the outside, and the gas turbine (B) and the expander (2) are connected with the compressor (A) and the second compressor (1) and transmit power to form a gas turbine type combined cycle power device; wherein, or the gas turbine (B) and the expander (2) are connected with the compressor (A), the second compressor (1) and the circulating pump (3) and transmit power.
9. A gas turbine type combined cycle power plant is characterized in that in any one of the gas turbine type combined cycle power plants described in claims 1-2 and 5-8, a gas turbine (B) with a gas channel communicated with the outside through a high-temperature heat exchanger (4) is adjusted to be communicated with the outside through the gas channel of the gas turbine (B) with the gas channel communicated with the outside through the high-temperature heat exchanger (4) and an evaporator (6), so that the gas turbine type combined cycle power plant is formed.
10. A gas turbine type combined cycle power plant is characterized in that in the gas turbine type combined cycle power plant of claim 4, a gas channel of a gas turbine (B) is communicated with the outside through a high-temperature heat exchanger (4) and a second high-temperature heat exchanger (9) and adjusted to be communicated with the outside through the high-temperature heat exchanger (4) and the second high-temperature heat exchanger (9), so that the gas turbine type combined cycle power plant is formed.
11. A gas turbine type combined cycle power device is characterized in that a gas regenerator is added in any one of the gas turbine type combined cycle power devices in claims 1-10, an air channel of a compressor (A) is communicated with a combustion chamber (C) and adjusted to be communicated with the combustion chamber (C) through the gas regenerator (D), a gas channel of a gas turbine (B) is communicated with a high-temperature heat exchanger (4) and adjusted to be communicated with the high-temperature heat exchanger (4) through the gas channel of the gas turbine (B), and the gas turbine type combined cycle power device is formed.
12. A gas turbine type combined cycle power device is characterized in that a low-temperature heat regenerator and a second circulating pump are added in any one of the gas turbine type combined cycle power devices disclosed by claims 1-11, a condenser (5) is communicated with an evaporator (6) through a circulating pump (3) and adjusted to be a condenser (5) which is communicated with the low-temperature heat regenerator (11) through the circulating pump (3), a middle steam extraction channel is additionally arranged on the second compressor (1) and is communicated with a low-temperature heat regenerator (14), and the low-temperature heat regenerator (11) is further communicated with the evaporator (6) through a second circulating pump (12) through a condensate pipeline, so that the gas turbine type combined cycle power device is formed.
13. The gas turbine type combined cycle power plant mainly comprises a compressor, a gas turbine, a combustion chamber, a dual-energy compressor, an expansion speed increaser, a diffuser pipe, a high-temperature heat exchanger, a condenser and an evaporator; an air channel is arranged outside and communicated with the compressor (A), the compressor (A) is also provided with an air channel and communicated with the combustion chamber (C), a fuel channel is also arranged outside and communicated with the combustion chamber (C), the combustion chamber (C) is also provided with a gas channel and communicated with the gas turbine (B), and the gas turbine (B) is also provided with a gas channel and communicated with the outside through the high-temperature heat exchanger (4); the condenser (5) is provided with a condensate pipeline which is communicated with the evaporator (6) through a diffuser pipe (15), then a steam channel of the evaporator (6) is communicated with the high-temperature heat exchanger (4), the dual-energy compressor (13) is provided with a steam channel which is communicated with the high-temperature heat exchanger (4), the high-temperature heat exchanger (4) is also provided with a steam channel which is communicated with the expansion speed increaser (14), the expansion speed increaser (14) is also provided with a low-pressure steam channel which is communicated with the evaporator (6), then the evaporator (6) is provided with a low-pressure steam channel which is respectively communicated with the dual-energy compressor (13) and the condenser (5); the condenser (5) is also provided with a cooling medium channel which is communicated with the outside, and the gas turbine (B) and the expansion speed increaser (14) are connected with the compressor (A) and the dual-energy compressor (13) and transmit power to form a gas turbine type combined cycle power device.
14. A gas turbine type combined cycle power plant, which is characterized in that in the gas turbine type combined cycle power plant of claim 13, a gas channel of a gas turbine (B) is communicated with the outside through a high temperature heat exchanger (4) and adjusted to be communicated with the outside through the high temperature heat exchanger (4) and an evaporator (6), so as to form the gas turbine type combined cycle power plant.
15. A gas turbine type combined cycle power device is characterized in that a gas regenerator is added in any one of the gas turbine type combined cycle power devices in claims 13-14, an air channel of a compressor (1) is communicated with a combustion chamber (C) and adjusted to be communicated with the combustion chamber (C) through the gas regenerator (D), a gas channel of a gas turbine (B) is communicated with a high-temperature heat exchanger (4) and adjusted to be communicated with the high-temperature heat exchanger (4) through the gas channel of the gas turbine (B), and the gas turbine type combined cycle power device is formed.
CN202110478559.5A 2020-05-02 2021-04-26 Gas turbine type combined cycle power plant Pending CN113217124A (en)

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Application Number Priority Date Filing Date Title
CN202010399651 2020-05-02
CN2020103996518 2020-05-02

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Publication Number Publication Date
CN113217124A true CN113217124A (en) 2021-08-06

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Application Number Title Priority Date Filing Date
CN202110478559.5A Pending CN113217124A (en) 2020-05-02 2021-04-26 Gas turbine type combined cycle power plant

Country Status (1)

Country Link
CN (1) CN113217124A (en)

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