CN110985149A - Combined cycle power plant - Google Patents

Combined cycle power plant Download PDF

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Publication number
CN110985149A
CN110985149A CN201911146404.0A CN201911146404A CN110985149A CN 110985149 A CN110985149 A CN 110985149A CN 201911146404 A CN201911146404 A CN 201911146404A CN 110985149 A CN110985149 A CN 110985149A
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communicated
heat exchanger
temperature heat
temperature
combined cycle
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李鸿瑞
李华玉
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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

Abstract

The invention provides a combined cycle power device, and belongs to the technical field of energy and power. The condenser is provided with a condensate pipeline which is communicated with the low-temperature evaporator through a circulating pump, then the low-temperature evaporator is provided with a steam channel which is communicated with the expander, and the expander is provided with a steam channel which is communicated with the condenser; the condenser is provided with a condensate pipeline which is communicated with the medium temperature evaporator through a second circulating pump, then the medium temperature evaporator is provided with a steam channel which is communicated with a second expander, and the second expander is provided with a steam channel which is communicated with the condenser; the diffuser pipe is provided with a circulating medium channel which is communicated with the diffuser pipe through a high-temperature heat exchanger, an expansion speed increaser, a medium-temperature evaporator and a low-temperature evaporator; the external part is provided with an air channel and a fuel channel which are communicated with an internal combustion engine, the internal combustion engine is provided with a fuel gas channel which is communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is provided with a cooling medium channel which is communicated with the external part, a condenser is provided with a cooling medium channel which is communicated with the external part, and an expansion machine, a second expansion machine, the internal combustion engine and an expansion speed increaser are connected with the external part and output power, thereby forming the.

Description

Combined cycle power plant
The technical field is as follows:
the invention belongs to the technical field of energy and power.
Background art:
cold demand, heat demand and power demand are common in human life and production. In the field of power demand technology, the conversion of thermal energy into mechanical energy is an important way to obtain and provide power. In a direct-fired gas-steam combined cycle of high-quality fuel represented by gasoline, diesel and natural gas, high efficiency of converting thermal energy into mechanical energy is the greatest advantage, but the direct-fired gas-steam combined cycle also has the problems of complicated device, high manufacturing difficulty and high manufacturing cost. In such combined cycle power plants, the expander, compressor, and heat exchanger are often essential basic and core components; the compressor and the expander are difficult to manufacture, high in material requirement and high in manufacturing cost, which is not beneficial to popularization and application of the combined cycle power device. Therefore, it is sought to replace them with simple components or to simplify the structure of the core components in order to reduce the manufacturing difficulty and cost of the combined cycle power plant.
The invention provides a combined cycle power device which combines a diffuser pipe and an expansion speed increaser and respectively replaces a main compressor and a main expander on the premise of keeping or effectively improving the heat efficiency of the combined cycle power device and aiming at reducing the manufacturing difficulty and the manufacturing cost of core components of the combined cycle power device.
The invention content is as follows:
the invention mainly aims to provide a combined cycle power device which combines a diffuser pipe and an expansion speed increaser and replaces a corresponding main compressor and a corresponding main expander, and the specific contents of the invention are explained in sections as follows:
1. the combined cycle power device mainly comprises a diffuser pipe, an expander, a spray pipe, a second expander, a third expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator and an internal combustion engine; the condenser is provided with a condensate pipeline which is communicated with the low-temperature evaporator through a circulating pump, then the low-temperature evaporator is provided with a steam channel which is communicated with a second expander, and the second expander is also provided with a steam channel which is communicated with the condenser; the condenser is also provided with a condensate pipeline which is communicated with the medium-temperature evaporator through a second circulating pump, then the medium-temperature evaporator is provided with a steam channel which is communicated with a third expander, and the third expander is also provided with a steam channel which is communicated with the condenser; the diffuser pipe is provided with a circulating medium channel which is communicated with an expander through a high-temperature heat exchanger, and the expander is also provided with a circulating medium channel which is communicated with the diffuser pipe through a spray pipe, a medium-temperature evaporator and a low-temperature evaporator; the external part is provided with an air channel communicated with the internal combustion engine, the external part is also provided with a fuel channel communicated with the internal combustion engine, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, the condenser is also provided with a cooling medium channel communicated with the external part, the low-temperature evaporator or the heat medium channel is also communicated with the external part, the medium-temperature evaporator or the heat medium channel is also communicated with the external part, and the expander, the second expander, the third expander and the internal combustion engine are connected with the.
2. The combined cycle power device mainly comprises a diffuser pipe, an expander, a second expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator, an internal combustion engine and an expansion speed increaser; the condenser is provided with a condensate pipeline which is communicated with the low-temperature evaporator through a circulating pump, then the low-temperature evaporator is provided with a steam channel which is communicated with the expander, and the expander is also provided with a steam channel which is communicated with the condenser; the condenser is also provided with a condensate pipeline which is communicated with the medium temperature evaporator through a second circulating pump, then the medium temperature evaporator is provided with a steam channel which is communicated with a second expander, and the second expander is also provided with a steam channel which is communicated with the condenser; the diffuser pipe is provided with a circulating medium channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expansion speed increaser is also provided with a circulating medium channel which is communicated with the diffuser pipe through a medium-temperature evaporator and a low-temperature evaporator; the external part is provided with an air channel communicated with the internal combustion engine, the external part is also provided with a fuel channel communicated with the internal combustion engine, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, the condenser is also provided with a cooling medium channel communicated with the external part, the low-temperature evaporator or the heat medium channel is also communicated with the external part, the medium-temperature evaporator or the heat medium channel is also communicated with the external part, and the expander, the second expander, the internal combustion engine and the expansion speed increaser are.
3. The combined cycle power device mainly comprises a diffuser pipe, an expander, a second expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator, an internal combustion engine, an expansion speed increaser and a compressor; the condenser is provided with a condensate pipeline which is communicated with the low-temperature evaporator through a circulating pump, then the low-temperature evaporator is provided with a steam channel which is communicated with the expander, and the expander is also provided with a steam channel which is communicated with the condenser; the condenser is also provided with a condensate pipeline which is communicated with the medium temperature evaporator through a second circulating pump, then the medium temperature evaporator is provided with a steam channel which is communicated with a second expander, and the second expander is also provided with a steam channel which is communicated with the condenser; the diffuser pipe is provided with a circulating medium channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expansion speed increaser is also provided with a circulating medium channel which is communicated with the diffuser pipe through a medium-temperature evaporator and a low-temperature evaporator; the external part is provided with an air channel communicated with the internal combustion engine, the external part is also provided with a gaseous fuel channel communicated with the internal combustion engine through a compressor, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, a condenser is also provided with a cooling medium channel communicated with the external part, a low-temperature evaporator or a thermal medium channel is also communicated with the external part, and a medium-temperature evaporator or a thermal medium channel; the internal combustion engine is connected with the compressor and transmits power, and the expansion machine, the second expansion machine, the internal combustion engine and the expansion speed-increasing machine are connected with the outside and output power, so that the combined cycle power device is formed.
4. A combined cycle power plant, wherein a newly-added compressor and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel arranged on a diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the newly-added compressor through the high-temperature heat exchanger, a circulation medium channel arranged on the newly-added compressor is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, a gas channel arranged on an internal combustion engine is communicated with the outside through the high-temperature heat exchanger and adjusted to be communicated with the gas channel arranged on the internal combustion engine through the newly-added high-temperature heat exchanger and the high-temperature heat exchanger, and the expansion speed increaser is connected with the newly-added compressor.
5. A combined cycle power plant, which is characterized in that a dual-energy compressor and a newly-increased high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel arranged on a diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the dual-energy compressor through the high-temperature heat exchanger, a circulation medium channel arranged on the dual-energy compressor is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, a gas channel arranged on an internal combustion engine is communicated with the outside through the high-temperature heat exchanger and is adjusted to be communicated with the gas channel arranged on the internal combustion engine through the newly-increased high-temperature heat exchanger and the high-temperature heat exchanger, and the expansion speed increaser is connected.
6. A combined cycle power plant, wherein a newly added diffuser pipe and a newly added high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, the communication between a circulation medium channel arranged on the diffuser pipe and an expansion speed increaser through the high temperature heat exchanger is adjusted to be that the circulation medium channel arranged on the diffuser pipe is communicated with the newly added diffuser pipe through the high temperature heat exchanger, the circulation medium channel arranged on the newly added diffuser pipe is communicated with the expansion speed increaser through the newly added high temperature heat exchanger, and the communication between a gas channel arranged on an internal combustion engine and the outside is adjusted to be that the gas channel arranged on the internal combustion engine is communicated with the outside through the newly added high temperature heat exchanger and the high temperature heat exchanger, thereby forming.
7. A combined cycle power plant, wherein a new expansion machine and a new high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel arranged on a diffuser pipe is communicated with an expansion speed increaser through the high temperature heat exchanger and adjusted to be communicated with the expansion speed increaser through the high temperature heat exchanger, a circulation medium channel arranged on the diffuser pipe is communicated with the new expansion machine through the high temperature heat exchanger, a circulation medium channel arranged on the new expansion machine is communicated with the expansion speed increaser through the new high temperature heat exchanger, a fuel gas channel arranged on an internal combustion engine is communicated with the outside through the high temperature heat exchanger and adjusted to be communicated with the outside through the fuel gas channel arranged on the internal combustion engine, and the new expansion machine is connected with the outside and transmits power, thus.
8. A combined cycle power plant, wherein a second expansion speed increaser and a new high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel arranged on a diffuser pipe is communicated with the expansion speed increaser through the high temperature heat exchanger and adjusted to be communicated with the second expansion speed increaser through the high temperature heat exchanger, a circulation medium channel arranged on the diffuser pipe is communicated with the expansion speed increaser through the new high temperature heat exchanger, a gas channel arranged on an internal combustion engine is communicated with the outside through the high temperature heat exchanger and adjusted to be communicated with the outside through the new high temperature heat exchanger and the high temperature heat exchanger, and the second expansion speed increaser is connected with the outside and transmits power, thereby forming the combined cycle power plant.
9. A combined cycle power plant, wherein a spray pipe and a newly-increased high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel arranged on a diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the expansion speed increaser through the circulation medium channel arranged on the diffuser pipe, the circulation medium channel arranged on the spray pipe is communicated with the spray pipe through the high-temperature heat exchanger, the circulation medium channel arranged on an internal combustion engine is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, and a gas channel arranged on the internal combustion engine is communicated with the outside through the high-temperature heat exchanger and the newly-.
10. A combined cycle power device is characterized in that a high-temperature heat regenerator is added in any one of the combined cycle power devices in items 2-3, a circulation medium channel arranged on a diffuser pipe is communicated with an expansion speed increaser through a high-temperature heat exchanger and is adjusted to be communicated with the expansion speed increaser through the high-temperature heat regenerator and the high-temperature heat exchanger, a circulation medium channel arranged on the expansion speed increaser is communicated with the expansion speed increaser through a medium-temperature evaporator and a low-temperature evaporator, and is adjusted to be communicated with the diffuser pipe through the circulation medium channel arranged on the expansion speed increaser through the high-temperature heat regenerator, the medium-temperature evaporator and the low-temperature evaporator, so that the combined cycle power device.
11. A combined cycle power plant, which is characterized in that in any one of the combined cycle power plants in items 2-3, a high-temperature heat regenerator, a newly-added compressor and a newly-added high-temperature heat exchanger are added, a circulation medium channel of a diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the newly-added compressor through the high-temperature heat regenerator and the high-temperature heat exchanger, a circulation medium channel of the newly-added compressor is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the expansion speed increaser through a medium-temperature evaporator and a low-temperature evaporator, the circulation medium channel of the expansion speed increaser is adjusted to be communicated with the diffuser pipe through the high-temperature heat regenerator, the medium-temperature evaporator and the low-temperature evaporator, a fuel gas channel of the internal combustion engine is adjusted to be, the expansion speed increaser is connected with the newly-increased compressor and transmits power to form a combined cycle power device.
12. A combined cycle power plant, which is characterized in that in any one of the combined cycle power plants in items 2-3, a dual-energy compressor, a high-temperature heat regenerator and a newly-increased high-temperature heat exchanger are added, a circulation medium channel of a diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the dual-energy compressor through the high-temperature heat regenerator and the high-temperature heat exchanger, a circulation medium channel of the dual-energy compressor is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the expansion speed increaser through a medium-temperature evaporator and a low-temperature evaporator, the circulation medium channel of the expansion speed increaser is adjusted to be communicated with the diffuser pipe through the high-temperature heat regenerator, the medium-temperature evaporator and the low-temperature evaporator, a fuel gas channel of the internal combustion engine is adjusted to be, the expansion speed increaser is connected with the dual-energy compressor and transmits power to form a combined cycle power device.
13. A combined cycle power plant, which is characterized in that in any one of the combined cycle power plants in items 2-3, a high-temperature heat regenerator, a newly-increased diffuser pipe and a newly-increased high-temperature heat exchanger are added, a circulation medium channel of the diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the newly-increased diffuser pipe through the high-temperature heat exchanger, a circulation medium channel of the newly-increased diffuser pipe is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the expansion speed increaser through a medium-temperature evaporator and a low-temperature evaporator, the circulation medium channel of the expansion speed increaser is adjusted to be communicated with the diffuser pipe through the high-temperature heat exchanger, a gas channel of the internal combustion engine is adjusted to be communicated with the outside through the high-temperature heat exchanger and the newly-increased high-temperature, forming a combined cycle power plant.
14. A combined cycle power plant, which is characterized in that in any one of the combined cycle power plants in items 2-3, a high-temperature heat regenerator, a new expansion machine and a new high-temperature heat exchanger are added, a circulation medium channel of a diffuser pipe is communicated with an expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the new expansion machine through the high-temperature heat regenerator and the high-temperature heat exchanger, a circulation medium channel of the new expansion machine is communicated with the expansion speed increaser through the new high-temperature heat exchanger, the circulation medium channel of the expansion speed increaser is communicated with the expansion speed increaser through a middle-temperature evaporator and a low-temperature evaporator, the circulation medium channel of the expansion speed increaser is adjusted to be communicated with the expansion pipe through the high-temperature heat exchanger and the low-temperature evaporator, a gas channel of an internal combustion engine is adjusted to be communicated with the outside through the high-temperature heat exchanger and the new high-temperature, the new expansion machine is connected with the outside and transmits power to form a combined cycle power device.
15. A combined cycle power plant, which is characterized in that a second expansion speed increaser, a high-temperature heat regenerator and a new high-temperature heat exchanger are added in any one combined cycle power plant of items 2 to 3, a circulation medium channel of a diffuser pipe is communicated with the expansion speed increaser through the high-temperature heat exchanger and is adjusted to be communicated with the second expansion speed increaser through the high-temperature heat regenerator and the high-temperature heat exchanger, a circulation medium channel of the second expansion speed increaser is communicated with the expansion speed increaser through the new high-temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the expansion speed increaser through the middle-temperature evaporator and the low-temperature evaporator, the circulation medium channel of the expansion speed increaser is adjusted to be communicated with the diffuser pipe through the high-temperature heat regenerator, the middle-temperature evaporator and the low-temperature evaporator, a gas channel of the internal combustion engine is adjusted to be communicated with the outside through the high-temperature heat exchanger, the second expansion speed increaser is connected with the outside and transmits power to form a combined cycle power device.
16. A combined cycle power plant, in any of the combined cycle power plants described in items 2-3, a spray pipe, a high temperature heat regenerator and a newly increased high temperature heat exchanger are added, a circulation medium channel of a diffuser pipe is communicated with an expansion speed increaser through the high temperature heat exchanger and is adjusted to be communicated with the spray pipe through the high temperature heat regenerator and the high temperature heat exchanger, a circulation medium channel of the diffuser pipe is communicated with the expansion speed increaser through the newly increased high temperature heat exchanger, the circulation medium channel of the expansion speed increaser is communicated with the diffuser pipe through a medium temperature evaporator and a low temperature evaporator to be adjusted to be communicated with the diffuser pipe through the high temperature heat regenerator, the medium temperature evaporator and the low temperature evaporator, a gas channel of an internal combustion engine is communicated with the outside through the high temperature heat exchanger to be adjusted to be communicated with the outside through the gas channel of the internal combustion engine through the newly increased high temperature heat exchanger, forming a combined cycle power plant.
17. A combined cycle power device is characterized in that a heat regenerator, a third circulating pump, a second heat regenerator and a fourth circulating pump are added in any combined cycle power device of items 1 to 16, a condenser with a condensate pipeline is communicated with a low-temperature evaporator through the circulating pump and adjusted to be communicated with the heat regenerator through the circulating pump, an expander is additionally provided with a steam extraction channel communicated with the heat regenerator, and the heat regenerator is further provided with a condensate pipeline communicated with the low-temperature evaporator through the third circulating pump; the condenser is communicated with the medium temperature evaporator through a second circulating pump, the condenser is adjusted to be communicated with a second heat regenerator through the second circulating pump, the expander is additionally provided with a second steam extraction channel communicated with the second heat regenerator, and the second heat regenerator is further communicated with the medium temperature evaporator through a fourth circulating pump through a condensate pipeline, so that a combined cycle power device is formed.
18. A combined cycle power plant, wherein a preheater and a second preheater are added in any combined cycle power plant described in items 1-16, a condenser with a condensate pipeline communicated with a low-temperature evaporator through a circulating pump is adjusted to have the condensate pipeline communicated with the low-temperature evaporator through the circulating pump and the preheater, a condenser with a condensate pipeline communicated with a medium-temperature evaporator through the second circulating pump is adjusted to have the condensate pipeline communicated with the medium-temperature evaporator through the second circulating pump and the second preheater, and the preheater and the second preheater are respectively communicated with the outside through a hot medium channel to form the combined cycle power plant.
19. A combined cycle power plant, wherein in any of the combined cycle power plants described in item 18, a condenser is provided with a condensate pipeline which is communicated with a low-temperature evaporator through a circulating pump and a preheater, and the condenser is provided with a condensate pipeline which is communicated with a medium-temperature evaporator through a second circulating pump and a second preheater, and the condenser is adjusted to be provided with a condensate pipeline which is divided into two paths after passing through the circulating pump and the preheater, wherein the first path is directly communicated with the low-temperature evaporator, and the second path is communicated with the medium-temperature evaporator through the second circulating pump and the second preheater, so that the combined cycle power plant is formed.
20. A combined cycle power plant, wherein an intermediate reheater is added to any one of the combined cycle power plants described in items 2 to 19, and the low-temperature evaporator is adjusted to have a steam passage communicated with an expander and a steam passage communicated with a condenser so that the low-temperature evaporator has a steam passage communicated with the expander, the expander has an intermediate reheated steam passage communicated with the expander through the intermediate reheater and the expander, the expander has a steam passage communicated with the condenser, and the intermediate reheater and a heat medium passage are communicated with the outside, thereby forming the combined cycle power plant.
21. A combined cycle power plant, wherein a second condenser is added in any combined cycle power plant described in items 2-16, a second expander is communicated with the condenser through a steam channel, the second expander is communicated with the second condenser through a steam channel, the condenser is communicated with a medium temperature evaporator through a second circulating pump, a condenser pipe is communicated with the medium temperature evaporator through a second circulating pump, the second condenser is communicated with the outside through a cooling medium channel, and the combined cycle power plant is formed.
22. A combined cycle power plant, in any of the combined cycle power plants described in items 2-20, a cooling medium channel communicated with the outside of an internal combustion engine is cancelled, a newly added circulating pump is added, a condensate pipeline is additionally arranged on a condenser, the condenser is communicated with the internal combustion engine through the newly added circulating pump, and then a steam channel of the internal combustion engine is communicated with an expander or a second expander to form the combined cycle power plant.
23. A combined cycle power plant, in any of the combined cycle power plants described in items 2-20, a cooling medium channel communicated with the outside of the internal combustion engine is cancelled, a newly added circulating pump and a newly added superheater are added, a condensate pipeline additionally arranged on a condenser is communicated with the internal combustion engine through the newly added circulating pump, then a steam channel of the internal combustion engine is communicated with an expander or a second expander through the newly added superheater, and a heat medium channel is communicated with the outside to form the combined cycle power plant.
24. A combined cycle power plant, wherein in any of the combined cycle power plants described in item 21, a cooling medium passage for communicating an internal combustion engine with the outside is eliminated, a newly added circulating pump is added, a condensate pipeline is additionally arranged on a second condenser, the second condenser is communicated with the internal combustion engine through the newly added circulating pump, and then a steam passage of the internal combustion engine is communicated with a second expander to form the combined cycle power plant.
25. A combined cycle power plant, wherein in any of the combined cycle power plants described in item 21, a cooling medium channel for communicating an internal combustion engine with the outside is eliminated, a newly added circulating pump and a newly added superheater are added, a condensate pipeline additionally arranged on a second condenser is communicated with the internal combustion engine through the newly added circulating pump, then a steam channel of the internal combustion engine is communicated with a second expander through the newly added superheater, and a heat medium channel of the newly added superheater is communicated with the outside, thereby forming the combined cycle power plant.
Description of the drawings:
FIG. 1 is a schematic 1 st thermodynamic system diagram of a combined cycle power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of the 2 nd principle of a combined cycle power plant provided in accordance with the present invention.
FIG. 3 is a schematic thermodynamic system diagram of the 3 rd principle of a combined cycle power plant provided in accordance with the present invention.
FIG. 4 is a diagram of a 4 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 5 is a diagram of a 5 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 6 is a 6 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 7 is a 7 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 8 is a diagram of an 8 th principle thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 9 is a diagram of a 9 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 10 is a 10 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 11 is a diagram of a principal 11 thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 12 is a 12 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 13 is a 13 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 14 is a 14 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 15 is a diagram of a 15 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 16 is a 16 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 17 is a diagram of a 17 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
In the figure, 1-diffuser pipe, 2-expander, 3-spray pipe, 4-second expander, 5-third expander, 6-circulating pump, 7-second circulating pump, 8-high temperature heat exchanger, 9-condenser, 10-low temperature evaporator, 11-medium temperature evaporator, 12-internal combustion engine, 13-expansion speed increaser, 14-compressor, 15-dual energy compressor, 16-second expansion speed increaser, 17-high temperature regenerator, 18-regenerator, 19-third circulating pump, 20-second regenerator, 21-fourth circulating pump, 22-preheater, 23-second preheater, 24-intermediate reheater, 25-second condenser; a-adding a compressor, B-adding a high-temperature heat exchanger, C-adding an expansion pipe, D-adding an expansion machine, E-adding a circulating pump and F-adding a superheater.
In order to clearly understand the content and essence of the present invention, the expansion speed increaser and the dual-energy compressor are explained as follows:
(1) the expansion speed-increasing machine-under a certain pressure drop, it can implement double functions of pressure-reducing work-making and pressure-reducing speed-increasing, and is a combination body of expansion machine and jet tube or other equipment with identical function.
(2) The dual-energy compressor, a device for increasing the pressure of fluid by using the external mechanical energy and the kinetic energy of the fluid, is a combination of the compressor and a diffuser pipe or other devices with the same function.
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.
The combined cycle power plant shown in fig. 1 is implemented as follows:
(1) structurally, the system mainly comprises a diffuser pipe, an expander, a spray pipe, a second expander, a third expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator and an internal combustion engine; the condenser 9 is provided with a condensate pipeline which is communicated with the low-temperature evaporator 10 through the circulating pump 6, then a steam channel of the low-temperature evaporator 10 is communicated with the second expander 4, and the second expander 4 is also provided with a steam channel which is communicated with the condenser 9; the condenser 9 is also provided with a condensate pipeline which is communicated with the medium temperature evaporator 11 through the second circulating pump 7, then the medium temperature evaporator 11 is provided with a steam channel which is communicated with the third expander 5, and the third expander 5 is also provided with a steam channel which is communicated with the condenser 9; the diffuser pipe 1 is provided with a circulating medium channel which is communicated with the expander 2 through the high-temperature heat exchanger 8, and the expander 2 is also provided with a circulating medium channel which is communicated with the diffuser pipe 1 through the spray pipe 3, the medium-temperature evaporator 11 and the low-temperature evaporator 10; an air channel is arranged outside and communicated with an internal combustion engine 12, a fuel channel is also arranged outside and communicated with the internal combustion engine 12, the internal combustion engine 12 and a fuel gas channel are also communicated with the outside through a high-temperature heat exchanger 8, the internal combustion engine 12 and a cooling medium channel are also communicated with the outside, a condenser 9 and a cooling medium channel are also communicated with the outside, and the expander 2, the second expander 4, the third expander 5 and the internal combustion engine 12 are connected with the outside and output power.
(2) In the process, a circulating medium discharged by the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, flows through the expander 2 and performs pressure reduction and work, flows through the spray pipe 3 and performs pressure reduction and speed increase, flows through the medium-temperature evaporator 11 and the low-temperature evaporator 10 and performs gradual heat release and temperature reduction, and then enters the diffuser pipe 1 to perform pressure increase and temperature increase and speed reduction; the first path of condensate of the condenser 9 is pressurized by a circulating pump 6 and enters a low-temperature evaporator 10 to absorb heat and vaporize, the steam flows through a second expansion machine 4 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; the second path of condensate of the condenser 9 is pressurized by a second circulating pump 7, enters a medium temperature evaporator 11 to absorb heat and vaporize, flows through a third expansion machine 5 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; external fuel and air enter the internal combustion engine 12, a series of processes including combustion and expansion are completed in a cylinder of the internal combustion engine 12, fuel gas discharged from the internal combustion engine 12 passes through the high-temperature heat exchanger 8 to release heat and is discharged to the outside, and external cooling medium passes through the internal combustion engine 12 to absorb heat and then is discharged to the outside; the fuel provides driving heat load through combustion, the cooling medium takes away low-temperature heat load through the condenser 9, and the expander 2, the second expander 4, the third expander 5 and the internal combustion engine 12 jointly provide power to the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 2 is implemented as follows:
(1) structurally, the expansion device mainly comprises a diffuser pipe, an expander, a second expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator, an internal combustion engine and an expansion speed increaser; the condenser 9 is provided with a condensate pipeline which is communicated with the low-temperature evaporator 10 through the circulating pump 6, then the low-temperature evaporator 10 is provided with a steam channel which is communicated with the expander 2, and the expander 2 is also provided with a steam channel which is communicated with the condenser 9; the condenser 9 is also provided with a condensate pipeline which is communicated with the medium temperature evaporator 11 through the second circulating pump 7, then the medium temperature evaporator 11 is provided with a steam channel which is communicated with the second expander 4, and the second expander 4 is also provided with a steam channel which is communicated with the condenser 9; the diffuser pipe 1 is provided with a circulating medium channel which is communicated with an expansion speed increaser 13 through a high-temperature heat exchanger 8, and the expansion speed increaser 13 is also provided with a circulating medium channel which is communicated with the diffuser pipe 1 through a medium-temperature evaporator 11 and a low-temperature evaporator 10; an air channel is arranged outside and communicated with an internal combustion engine 12, a fuel channel is also arranged outside and communicated with the internal combustion engine 12, the internal combustion engine 12 and a fuel gas channel are also communicated with the outside through a high-temperature heat exchanger 8, the internal combustion engine 12 and a cooling medium channel are also communicated with the outside, a condenser 9 and a cooling medium channel are also communicated with the outside, and the expander 2, the second expander 4, the internal combustion engine 12 and the expansion speed increaser 13 are connected with the outside and output power.
(2) In the process, a circulating medium discharged by the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, flows through the expansion speed increaser 13 and is reduced in pressure, does work and is reduced in pressure and increased in speed, flows through the medium-temperature evaporator 11 and the low-temperature evaporator 10 to gradually release heat and reduce temperature, and then enters the diffuser pipe 1 to be increased in pressure, heated and reduced in speed; the first path of condensate of the condenser 9 is pressurized by a circulating pump 6 and enters a low-temperature evaporator 10 to absorb heat and vaporize, the steam flows through an expander 2 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; the second path of condensate of the condenser 9 is pressurized by a second circulating pump 7, enters a medium temperature evaporator 11 to absorb heat and vaporize, flows through a second expansion machine 4 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; external fuel and air enter the internal combustion engine 12, a series of processes including combustion and expansion are completed in a cylinder of the internal combustion engine 12, fuel gas discharged from the internal combustion engine 12 passes through the high-temperature heat exchanger 8 to release heat and is discharged to the outside, and external cooling medium passes through the internal combustion engine 12 to absorb heat and then is discharged to the outside; the fuel provides driving heat load through combustion, the cooling medium takes away low-temperature heat load through the condenser 9, and the expander 2, the second expander 4, the internal combustion engine 12 and the expansion speed increaser 13 provide power outwards together to form a combined cycle power device.
The combined cycle power plant shown in fig. 3 is implemented as follows:
(1) structurally, the expansion device mainly comprises a diffuser pipe, an expander, a second expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator, an internal combustion engine, an expansion speed increaser and a compressor; the condenser 9 is provided with a condensate pipeline which is communicated with the low-temperature evaporator 10 through the circulating pump 6, then the low-temperature evaporator 10 is provided with a steam channel which is communicated with the expander 2, and the expander 2 is also provided with a steam channel which is communicated with the condenser 9; the condenser 9 is also provided with a condensate pipeline which is communicated with the medium temperature evaporator 11 through the second circulating pump 7, then the medium temperature evaporator 11 is provided with a steam channel which is communicated with the second expander 4, and the second expander 4 is also provided with a steam channel which is communicated with the condenser 9; the diffuser pipe 1 is provided with a circulating medium channel which is communicated with an expansion speed increaser 13 through a high-temperature heat exchanger 8, and the expansion speed increaser 13 is also provided with a circulating medium channel which is communicated with the diffuser pipe 1 through a medium-temperature evaporator 11 and a low-temperature evaporator 10; an air channel is arranged outside and communicated with an internal combustion engine 12, a gaseous fuel channel is arranged outside and communicated with the internal combustion engine 12 through a compressor 14, the internal combustion engine 12 and a fuel gas channel are communicated with the outside through a high-temperature heat exchanger 8, the internal combustion engine 12 and a cooling medium channel are communicated with the outside, a condenser 9 and a cooling medium channel are communicated with the outside, a low-temperature evaporator 10 and a heat medium channel are communicated with the outside, and a medium-temperature evaporator 11 and a heat medium channel are communicated with the outside; the internal combustion engine 12 is connected to the compressor 14 and transmits power, and the expander 2, the second expander 4, the internal combustion engine 12, and the expansion speed-increasing gear 13 are connected to the outside and output power.
(2) In the process, a circulating medium discharged by the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, flows through the expansion speed increaser 13 and is reduced in pressure, does work and is reduced in pressure and increased in speed, flows through the medium-temperature evaporator 11 and the low-temperature evaporator 10 to gradually release heat and reduce temperature, and then enters the diffuser pipe 1 to be increased in pressure, heated and reduced in speed; the first path of condensate of the condenser 9 is pressurized by a circulating pump 6 and enters a low-temperature evaporator 10 to absorb heat and vaporize, the steam flows through an expander 2 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; the second path of condensate of the condenser 9 is pressurized by a second circulating pump 7, enters a medium temperature evaporator 11 to absorb heat and vaporize, flows through a second expansion machine 4 to reduce pressure and do work, and then enters the condenser 9 to release heat and condense; the external air enters the internal combustion engine 12, the external gaseous fuel enters the internal combustion engine 12 after being pressurized by the compressor 14, the air and the fuel complete a series of processes including combustion and expansion in a cylinder of the internal combustion engine 12, the fuel gas discharged by the internal combustion engine 12 passes through the high-temperature heat exchanger 8 to release heat and discharge, and the external cooling medium passes through the internal combustion engine 12 to absorb heat and then is discharged outwards; the fuel provides driving heat load through combustion, the heat medium, namely fuel gas after flowing through the high-temperature heat exchanger 8, other heat sources or heat source media capable of providing heat load, provides driving heat load through the low-temperature evaporator 10 and the medium-temperature evaporator 11, the cooling medium takes away the low-temperature heat load through the condenser 9, the internal combustion engine 12 provides power for the compressor 14, and the expander 2, the second expander 4, the internal combustion engine 12 and the expansion speed increaser 13 provide power outwards together to form a combined cycle power device.
The combined cycle power plant shown in fig. 4 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a newly added compressor and a newly added high-temperature heat exchanger are added, a circulation medium channel of a diffuser pipe 1 is communicated with an expansion speed increaser 13 through a high-temperature heat exchanger 8 and adjusted to be that the circulation medium channel of the diffuser pipe 1 is communicated with the newly added compressor a through the high-temperature heat exchanger 8, the circulation medium channel of the newly added compressor a is communicated with the expansion speed increaser 13 through a newly added high-temperature heat exchanger B, a gas channel of an internal combustion engine 12 is communicated with the outside through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 8 and adjusted to be that the gas channel of the internal combustion engine 12 is communicated with the outside through the newly added high-temperature heat exchanger.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference is that the circulation medium discharged from the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, and then enters the newly-added compressor A to increase the pressure and the temperature; the circulating medium discharged by the newly-added compressor A flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 13 to reduce pressure, do work and increase pressure and speed; the gas discharged by the internal combustion engine 12 passes through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, and the expansion speed increaser 13 provides power for the newly-added compressor A to form a combined cycle power device.
The combined cycle power plant shown in fig. 5 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a dual-energy compressor and a new high-temperature heat exchanger are added, a circulation medium channel of a diffuser pipe 1 is communicated with an expansion speed increaser 13 through a high-temperature heat exchanger 8 and is adjusted to be communicated with the dual-energy compressor 15 through the high-temperature heat exchanger 8, a circulation medium channel of the dual-energy compressor 15 is communicated with the expansion speed increaser 13 through a new high-temperature heat exchanger B, a gas channel of an internal combustion engine 12 is communicated with the outside through the high-temperature heat exchanger 8 and is adjusted to be communicated with the inside of the internal combustion engine 12 through the new high-temperature heat exchanger B and the high-temperature heat exchanger 8, and the expansion speed increaser 13 is connected with the dual-energy compressor 15.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference is that the circulation medium discharged from the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, and then enters the dual-energy compressor 15 to increase the pressure, raise the temperature and reduce the speed; the circulating medium discharged by the dual-energy compressor 15 flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 13 to reduce the pressure and do work and reduce the pressure and increase the speed; the gas discharged by the internal combustion engine 12 passes through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, and the expansion speed increaser 13 provides power for the dual-energy compressor 15 to form a combined cycle power device.
The combined cycle power plant shown in fig. 6 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a newly added diffuser pipe and a newly added high temperature heat exchanger are added, the diffuser pipe 1 is communicated with the expansion speed increaser 13 through the high temperature heat exchanger 8, and is adjusted to be communicated with the expansion speed increaser 13 through the high temperature heat exchanger 8, the diffuser pipe 1 is communicated with the newly added diffuser pipe C through the high temperature heat exchanger 8, the newly added diffuser pipe C is communicated with the expansion speed increaser 13 through a circulating medium channel, and the internal combustion engine 12 is communicated with the outside through the newly added high temperature heat exchanger B and the high temperature heat exchanger 8, and is adjusted to be communicated with the outside through the internal combustion engine 12 through a gas channel, the newly added.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference in the flow is that the circulation medium discharged from the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, and then enters the newly added diffuser pipe C to increase the pressure, raise the temperature and reduce the speed; circulating media discharged by the newly-added diffuser pipe C flow through the newly-added high-temperature heat exchanger B and absorb heat, and then enter the expansion speed increaser 13 to reduce pressure, do work and reduce pressure and increase speed; the fuel gas discharged by the internal combustion engine 12 flows through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, so that a combined cycle power device is formed.
The combined cycle power plant shown in fig. 7 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a new expansion machine and a new high-temperature heat exchanger are added, a circulation medium channel of a pressure expansion pipe 1 is communicated with an expansion speed increaser 13 through a high-temperature heat exchanger 8 and adjusted to be communicated with the expansion machine D through the high-temperature heat exchanger 8, a circulation medium channel of the new expansion machine D is communicated with the expansion speed increaser 13 through a new high-temperature heat exchanger B, a gas channel of an internal combustion engine 12 is communicated with the outside through the high-temperature heat exchanger 8 and adjusted to be communicated with the gas channel of the internal combustion engine 12 through the new high-temperature heat exchanger B and the high-temperature heat exchanger 8, and the new expansion machine D is connected with the outside and transmits power.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference in the flow is that the circulation medium discharged from the diffuser pipe 1 flows through the high temperature heat exchanger 8 and absorbs heat, and then enters the new expansion machine D to reduce the pressure and do work; the circulating medium discharged by the new expansion machine D flows through the new high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 13 to reduce pressure, do work and increase pressure and speed; the gas discharged by the internal combustion engine 12 flows through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, and the work output by the newly-added expansion machine D is output to the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 8 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a second expansion speed increaser and a new high temperature heat exchanger are added, a circulation medium channel of the diffuser pipe 1 is communicated with the expansion speed increaser 13 through the high temperature heat exchanger 8, the circulation medium channel of the diffuser pipe 1 is communicated with the second expansion speed increaser 16 through the high temperature heat exchanger 8, the circulation medium channel of the second expansion speed increaser 16 is communicated with the expansion speed increaser 13 through the new high temperature heat exchanger B, a gas channel of the internal combustion engine 12 is communicated with the outside through the high temperature heat exchanger 8, the gas channel of the internal combustion engine 12 is communicated with the outside through the new high temperature heat exchanger B and the high temperature heat exchanger 8, and the second expansion speed increaser 16 is connected with the outside and transmits power.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the circulation medium discharged from the diffuser pipe 1 flows through the high-temperature heat exchanger 8 and absorbs heat, and then enters the second expansion speed-increasing machine 16 to reduce pressure and do work and reduce pressure and increase speed; the circulating medium discharged by the second expansion speed increaser 16 flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 13 to reduce pressure, do work and increase speed; the gas discharged by the internal combustion engine 12 passes through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, and the work output by the second expansion speed increaser 16 is output to the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 9 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a spray pipe and a new high temperature heat exchanger are added, a circulation medium channel of a diffuser pipe 1 is communicated with an expansion speed increaser 13 through a high temperature heat exchanger 8, the circulation medium channel of the diffuser pipe 1 is communicated with the spray pipe 3 through the high temperature heat exchanger 8, the circulation medium channel of the spray pipe 3 is communicated with the expansion speed increaser 13 through a new high temperature heat exchanger B, a gas channel of an internal combustion engine 12 is communicated with the outside through the high temperature heat exchanger 8, and the gas channel of the internal combustion engine 12 is communicated with the outside through the new high temperature heat exchanger B and the high temperature heat exchanger 8.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference in the flow is that the circulation medium discharged from the diffuser pipe 1 flows through the high temperature heat exchanger 8 and absorbs heat, and then enters the nozzle 3 to be depressurized and accelerated; circulating medium discharged by the spray pipe 3 flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 13 to reduce pressure, do work and increase pressure and speed; the fuel gas discharged by the internal combustion engine 12 flows through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, so that a combined cycle power device is formed.
The combined cycle power plant shown in fig. 10 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a high temperature heat regenerator is added, a circulation medium channel of the diffuser pipe 1 is communicated with the expansion speed increaser 13 through a high temperature heat exchanger 8 and adjusted to be communicated with the expansion speed increaser 13 through a high temperature heat regenerator 17 and the high temperature heat exchanger 8, a circulation medium channel of the expansion speed increaser 13 is communicated with the diffuser pipe 1 through a medium temperature evaporator 11 and a low temperature evaporator 10, and adjusted to be communicated with the expansion speed increaser 13 through a circulation medium channel of the expansion speed increaser 13 through the high temperature heat regenerator 17, the medium temperature evaporator 11 and the low temperature evaporator 10 and communicated with the diffuser pipe 1.
(2) Compared with the circulation flow of the combined cycle power device shown in fig. 2, the difference in the flow is that the circulation medium discharged from the diffuser pipe 1 flows through the high-temperature heat regenerator 17 and the high-temperature heat exchanger 8 and absorbs heat gradually, flows through the expansion speed increaser 13 to reduce pressure, do work, reduce pressure and increase speed, flows through the high-temperature heat regenerator 17, the medium-temperature evaporator 11 and the low-temperature evaporator 10 to release heat gradually, and then enters the diffuser pipe 1 to increase pressure, raise temperature and reduce speed to form the combined cycle power device.
The combined cycle power plant shown in FIG. 11 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a high temperature heat regenerator, a newly-increased diffuser pipe and a newly-increased high temperature heat exchanger are added, a circulation medium channel of the diffuser pipe 1 is communicated with an expansion speed increaser 13 through a high temperature heat exchanger 8, the circulation medium channel of the diffuser pipe 1 is communicated with a newly-increased diffuser pipe C through a high temperature heat regenerator 17 and a high temperature heat exchanger 8, the circulation medium channel of the newly-increased diffuser pipe C is communicated with the expansion speed increaser 13 through a newly-increased high temperature heat exchanger B, the circulation medium channel of the expansion speed increaser 13 is communicated with the diffuser pipe 1 through a medium temperature evaporator 11 and a low temperature evaporator 10, the circulation medium channel of the expansion speed increaser 13 is communicated with the diffuser pipe 1 through the high temperature heat regenerator 17, the medium temperature evaporator 11 and the low temperature evaporator 10, the internal combustion engine 12 is adjusted to be communicated with the outside through the high-temperature heat exchanger 8, and the internal combustion engine 12 is adjusted to be communicated with the outside through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the circulation medium discharged from the diffuser pipe 1 flows through the high-temperature heat regenerator 17 and the high-temperature heat exchanger 8 and gradually absorbs heat, and then enters the newly added diffuser pipe C to increase the pressure, raise the temperature and reduce the speed; circulating media discharged by the newly-added diffuser pipe C flow through the newly-added high-temperature heat exchanger B and absorb heat, flow through the expansion speed increaser 13 to reduce pressure, do work and increase speed, flow through the high-temperature heat regenerator 17, the medium-temperature evaporator 11 and the low-temperature evaporator 10 to gradually release heat and reduce temperature, and then enter the diffuser pipe 1 to increase pressure, raise temperature and reduce speed; the fuel gas discharged by the internal combustion engine 12 flows through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 8 to gradually release heat and is discharged to the outside, so that a combined cycle power device is formed.
The combined cycle power plant shown in fig. 12 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a heat regenerator, a third circulating pump, a second heat regenerator and a fourth circulating pump are added, a condensate pipeline of a condenser 9 is communicated with a low-temperature evaporator 10 through the circulating pump 6, the condensate pipeline of the condenser 9 is communicated with the heat regenerator 18 through the circulating pump 6, a steam extraction channel is additionally arranged on the expander 2 and is communicated with the heat regenerator 18, and the condensate pipeline of the heat regenerator 18 is communicated with the low-temperature evaporator 10 through a third circulating pump 19; a condensate pipeline of the condenser 9 is communicated with the medium-temperature evaporator 11 through the second circulating pump 7, and is adjusted to be that the condensate pipeline of the condenser 9 is communicated with the second heat regenerator 20 through the second circulating pump 7, the expander 2 is additionally provided with a second steam extraction channel which is communicated with the second heat regenerator 20, and the second heat regenerator 20 is communicated with the medium-temperature evaporator 11 through a fourth circulating pump 21.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference is that the condensate after the pressure of the condensate flowing through the circulating pump 6 enters the heat regenerator 18, and the condensate after the pressure of the condensate flowing through the second circulating pump 7 enters the second heat regenerator 20; the steam entering the expansion machine 2 is decompressed and works to a certain pressure, and then is divided into three paths, namely, the first path continues decompressing and works and enters the condenser 9, the second path enters the heat regenerator 18 through the steam extraction channel to be mixed with the condensate for heat release and condensation, and the third path enters the second heat regenerator 20 through the second steam extraction channel to be mixed with the condensate for heat release and condensation; the condensate of the heat regenerator 18 enters the low-temperature evaporator 10 after being boosted by the third circulating pump 19, and the condensate of the second heat regenerator 20 enters the medium-temperature evaporator 11 after being boosted by the fourth circulating pump 21, so that the combined cycle power device is formed.
The combined cycle power plant shown in fig. 13 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a preheater and a second preheater are added, a condensate pipeline of a condenser 9 is communicated and adjusted to the condenser 9 through a circulating pump 6 and a low-temperature evaporator 10, the condensate pipeline of the condenser 9 is communicated with the low-temperature evaporator 10 through the circulating pump 6 and the preheater 22, the condensate pipeline of the condenser 9 is communicated and adjusted to the condenser 9 through a second circulating pump 7 and a medium-temperature evaporator 11, the condensate pipeline of the condenser 9 is communicated and adjusted to the medium-temperature evaporator 11 through the second circulating pump 7 and the second preheater 23, and the preheater 22 and the second preheater 23 are respectively communicated with the outside through a heat medium channel.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the first path of condensate of the condenser 9 enters the low-temperature evaporator 10 after being boosted by the circulating pump 6 and heated by the preheater 22, and the second path of condensate of the condenser 9 enters the medium-temperature evaporator 11 after being boosted by the second circulating pump 7 and heated by the second preheater 23, so as to form the combined cycle power plant.
The combined cycle power plant shown in fig. 14 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 13, the condenser 9 is adjusted to have a condensate line communicated with the low temperature evaporator 10 through the circulation pump 6 and the preheater 22 and a condensate line communicated with the medium temperature evaporator 11 through the second circulation pump 7 and the second preheater 23, and the condenser 9 is divided into two paths after having a condensate line passed through the circulation pump 6 and the preheater 22 — the first path is directly communicated with the low temperature evaporator 10 and the second path is communicated with the medium temperature evaporator 11 through the second circulation pump 7 and the second preheater 23.
(2) In the process, compared with the circulation process of the combined cycle power plant shown in fig. 13, the difference lies in that the condensate of the condenser 9 is divided into two paths after passing through the circulating pump 6 for pressure increase and passing through the preheater 22 for heat absorption and temperature increase, the first path directly enters the low-temperature evaporator 10 for heat absorption and vaporization, and the second path enters the medium-temperature evaporator 11 for heat absorption and vaporization after passing through the second circulating pump 7 for pressure increase and the second preheater 23 for heat absorption and temperature increase, so as to form the combined cycle power plant.
The combined cycle power plant shown in fig. 15 is implemented as follows:
in the combined cycle power plant shown in fig. 2, an intermediate reheater is added, the low temperature evaporator 10 having a steam passage communicating with the expander 2 and the expander 2 having a steam passage communicating with the condenser 9 are adjusted such that the low temperature evaporator 10 having a steam passage communicating with the expander 2, the expander 2 having an intermediate reheated steam passage communicating with the expander 2 via the intermediate reheater 24 and the expander 2 having a steam passage communicating with the condenser 9, the intermediate reheater 24 having a heat medium passage communicating with the outside; when the steam entering the expansion machine 2 reduces the pressure and works to a certain pressure, the steam is completely led out and flows through the intermediate reheater 24 through the intermediate reheated steam channel to absorb heat and raise the temperature, then enters the expansion machine 2 to continue reducing the pressure and work, and then enters the condenser 9 to release heat and condense to form the combined cycle power device.
The combined cycle power plant shown in fig. 16 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a second condenser is added, the second expander 4 is adjusted to have a steam passage to communicate with the condenser 9, the second expander 4 has a steam passage to communicate with the second condenser 25, the condenser 9 has a condensate pipeline to communicate with the medium temperature evaporator 11 through the second circulation pump 7, the condenser 25 has a condensate pipeline to communicate with the medium temperature evaporator 11 through the second circulation pump 7, and the second condenser 25 also has a cooling medium passage to communicate with the outside.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the steam discharged from the second expander 4 enters the second condenser 25 to release heat to the cooling medium and condense, the condensate of the second condenser 25 flows through the second circulation pump 7 to increase the pressure, flows through the medium temperature evaporator 11 to absorb heat and vaporize, and then enters the second expander 4 to reduce the pressure and do work, thereby forming the combined cycle power plant.
The combined cycle power plant shown in fig. 17 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a cooling medium channel of the internal combustion engine 12 communicated with the outside is cancelled, a newly added circulating pump and a newly added superheater are added, a condensate pipeline is additionally arranged on the condenser 9, the condensate pipeline is communicated with the internal combustion engine 12 through the newly added circulating pump E, then a steam channel of the internal combustion engine 12 is communicated with the second expander 4 through the newly added superheater F, and the newly added superheater F is also communicated with the outside through a heat medium channel.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that one path of condensate of the condenser 9 is supplied to the internal combustion engine 12 as circulating cooling liquid after being boosted by the newly added circulating pump E, is evaporated after absorbing heat, enters the second expander 4 after being heated and absorbed by the newly added superheater F to be decompressed and work, and provides heat load to the newly added superheater F as a heat medium, i.e. fuel gas discharged by the internal combustion engine 12 or other heat source media, to form the combined cycle power plant.
The effect that the technology of the invention can realize-the combined cycle power device provided by the invention has the following effects and advantages:
(1) the diffuser pipe replaces a main compressor, and the manufacturing difficulty and the manufacturing cost of the combined cycle power device are greatly reduced.
(2) The expansion speed increaser replaces a main expansion machine, so that the manufacturing difficulty and the manufacturing cost of the combined cycle power device are greatly reduced.
(3) The jet pipe or the expansion speed increaser replaces a common expansion machine, so that the manufacturing difficulty and the manufacturing cost of the combined cycle power device are effectively reduced.
(4) The diffuser pipe or the dual-energy compressor replaces a common compressor, and the manufacturing difficulty and the manufacturing cost of the combined cycle power device are effectively reduced.
(5) The simple components replace complex components, and the heat power change efficiency of the combined cycle power device is kept or improved.
(6) The complex parts are replaced by simple parts and simplified, which is beneficial to improving the safety and service life of the dynamic parts.
(7) A plurality of specific technical schemes are provided, and the device can be used for coping with a plurality of different actual conditions and has a wider application range.
(8) The combined cycle power plant technology is expanded, the types of the combined cycle power plant are enriched, the conversion of heat energy into mechanical energy is favorably realized, and the application range of the combined cycle power plant is expanded.

Claims (25)

1. The combined cycle power device mainly comprises a diffuser pipe, an expander, a spray pipe, a second expander, a third expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator and an internal combustion engine; the condenser (9) is provided with a condensate pipeline which is communicated with the low-temperature evaporator (10) through the circulating pump (6), then a steam channel of the low-temperature evaporator (10) is communicated with the second expander (4), and the second expander (4) is also provided with a steam channel which is communicated with the condenser (9); the condenser (9) is also provided with a condensate pipeline which is communicated with the medium-temperature evaporator (11) through a second circulating pump (7), then the medium-temperature evaporator (11) is also provided with a steam channel which is communicated with a third expansion machine (5), and the third expansion machine (5) is also provided with a steam channel which is communicated with the condenser (9); the diffuser pipe (1) is provided with a circulating medium channel which is communicated with the expander (2) through the high-temperature heat exchanger (8), and the expander (2) is also provided with a circulating medium channel which is communicated with the diffuser pipe (1) through the spray pipe (3), the medium-temperature evaporator (11) and the low-temperature evaporator (10); the external part is provided with an air channel communicated with an internal combustion engine (12), the external part is also provided with a fuel channel communicated with the internal combustion engine (12), the internal combustion engine (12) is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger (8), the internal combustion engine (12) is also provided with a cooling medium channel communicated with the external part, a condenser (9) is also provided with a cooling medium channel communicated with the external part, a low-temperature evaporator (10) or a heat medium channel is also communicated with the external part, a medium-temperature evaporator (11) or a heat medium channel is also communicated with the external part, and an expander (2), a second expander (4), a third expander (5) and the internal combustion engine (12) are connected with the external.
2. The combined cycle power device mainly comprises a diffuser pipe, an expander, a second expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator, an internal combustion engine and an expansion speed increaser; the condenser (9) is provided with a condensate pipeline which is communicated with the low-temperature evaporator (10) through the circulating pump (6), then the low-temperature evaporator (10) is communicated with the expander (2) through a steam channel, and the expander (2) is also communicated with the condenser (9) through a steam channel; the condenser (9) is also provided with a condensate pipeline which is communicated with the medium temperature evaporator (11) through a second circulating pump (7), then a steam channel of the medium temperature evaporator (11) is communicated with the second expander (4), and the second expander (4) is also provided with a steam channel which is communicated with the condenser (9); the diffuser pipe (1) is provided with a circulating medium channel which is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8), and the expansion speed increaser (13) is also provided with a circulating medium channel which is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10); the external part is provided with an air channel communicated with an internal combustion engine (12), the external part is also provided with a fuel channel communicated with the internal combustion engine (12), the internal combustion engine (12) is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger (8), the internal combustion engine (12) is also provided with a cooling medium channel communicated with the external part, a condenser (9) is also provided with a cooling medium channel communicated with the external part, a low-temperature evaporator (10) or a heat medium channel is also communicated with the external part, a medium-temperature evaporator (11) or a heat medium channel is also communicated with the external part, and an expander (2), a second expander (4), the internal combustion engine (12) and an expansion speed increaser (13) are connected.
3. The combined cycle power device mainly comprises a diffuser pipe, an expander, a second expander, a circulating pump, a second circulating pump, a high-temperature heat exchanger, a condenser, a low-temperature evaporator, a medium-temperature evaporator, an internal combustion engine, an expansion speed increaser and a compressor; the condenser (9) is provided with a condensate pipeline which is communicated with the low-temperature evaporator (10) through the circulating pump (6), then the low-temperature evaporator (10) is communicated with the expander (2) through a steam channel, and the expander (2) is also communicated with the condenser (9) through a steam channel; the condenser (9) is also provided with a condensate pipeline which is communicated with the medium temperature evaporator (11) through a second circulating pump (7), then a steam channel of the medium temperature evaporator (11) is communicated with the second expander (4), and the second expander (4) is also provided with a steam channel which is communicated with the condenser (9); the diffuser pipe (1) is provided with a circulating medium channel which is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8), and the expansion speed increaser (13) is also provided with a circulating medium channel which is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10); the external part is provided with an air channel communicated with an internal combustion engine (12), the external part is also provided with a gaseous fuel channel communicated with the internal combustion engine (12) through a compressor (14), the internal combustion engine (12) is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger (8), the internal combustion engine (12) is also provided with a cooling medium channel communicated with the external part, a condenser (9) is also provided with a cooling medium channel communicated with the external part, a low-temperature evaporator (10) or a heat medium channel is communicated with the external part, and a medium-temperature evaporator (11) or a heat medium channel is communicated with; the internal combustion engine (12) is connected with the compressor (14) and transmits power, and the expander (2), the second expander (4), the internal combustion engine (12) and the expansion speed increaser (13) are connected with the outside and output power, so that the combined cycle power device is formed.
4. A combined cycle power plant, in any combined cycle power plant of claims 2-3, a newly added compressor and a newly added high temperature heat exchanger are added, a circulating medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high temperature heat exchanger (8) and is adjusted to be communicated with a newly added compressor (A) through the high temperature heat exchanger (8) and the circulating medium channel of the newly added compressor (A) is communicated with the expansion speed increaser (13) through a newly added high temperature heat exchanger (B), a gas channel of an internal combustion engine (12) is communicated with the outside through the high temperature heat exchanger (8) and is adjusted to be communicated with the outside through the newly added high temperature heat exchanger (B) and the high temperature heat exchanger (8) and is communicated with the inside, the expansion speed increaser (13) is connected with the newly added compressor (A) and transmits power, forming a combined cycle power plant.
5. A combined cycle power device is characterized in that a dual-energy compressor and a newly-increased high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulating medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and adjusted to be communicated with the dual-energy compressor (15) through the high-temperature heat exchanger (8) and the circulating medium channel of the diffuser pipe (1), the circulating medium channel of the dual-energy compressor (15) is communicated with the expansion speed increaser (13) through the newly-increased high-temperature heat exchanger (B), a gas channel of an internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) and adjusted to be communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), the expansion speed increaser (13) is connected with the dual-energy compressor (15), forming a combined cycle power plant.
6. A combined cycle power device is characterized in that a newly added diffuser pipe and a newly added high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulating medium channel of the diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and is adjusted to be communicated with a newly added diffuser pipe (C) through the high-temperature heat exchanger (8) and a circulating medium channel of the newly added diffuser pipe (C) is communicated with the expansion speed increaser (13) through the newly added high-temperature heat exchanger (B), a gas channel of an internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) and is adjusted to be communicated with the outside through the newly added high-temperature heat exchanger (B) and the high-temperature heat exchanger (8) and form the combined cycle power device.
7. A combined cycle power plant as claimed in any one of claims 2 to 3, a new expansion machine and a new increased high-temperature heat exchanger are added, a circulation medium channel arranged on a diffuser pipe (1) is communicated with an expansion speed increasing machine (13) through a high-temperature heat exchanger (8) and adjusted to be communicated with the expansion speed increasing machine (D) through the circulation medium channel arranged on the diffuser pipe (1) and the high-temperature heat exchanger (8), the circulation medium channel arranged on the new expansion machine (D) is communicated with the expansion speed increasing machine (13) through a new increased high-temperature heat exchanger (B), a gas channel arranged on an internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) and adjusted to be communicated with the outside through the gas channel arranged on the internal combustion engine (12) and the new increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), and the new expansion speed increasing machine (D) is connected with.
8. A combined cycle power plant, in any one of the combined cycle power plants of claims 2-3, a second expansion speed increaser and a new high temperature heat exchanger are added, a circulating medium channel of a diffuser pipe (1) is communicated with the expansion speed increaser (13) through the high temperature heat exchanger (8) and is adjusted to be communicated with the second expansion speed increaser (16) through the high temperature heat exchanger (8) and the circulating medium channel of the diffuser pipe (1), the circulating medium channel of the second expansion speed increaser (16) is communicated with the expansion speed increaser (13) through the new high temperature heat exchanger (B), a gas channel of an internal combustion engine (12) is communicated with the outside through the high temperature heat exchanger (8) and is adjusted to be communicated with the outside through the new high temperature heat exchanger (B) and the high temperature heat exchanger (8), the second expansion speed increaser (16) is connected with the outside and transmits power, forming a combined cycle power plant.
9. A combined cycle power device is characterized in that a spray pipe and a newly-increased high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulating medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and adjusted to be communicated with the spray pipe (3) through the high-temperature heat exchanger (8) and the circulating medium channel of the diffuser pipe (1), a circulating medium channel of the spray pipe (3) is communicated with the expansion speed increaser (13) through the newly-increased high-temperature heat exchanger (B), a gas channel of an internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) and adjusted to be communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), and the combined cycle power device is formed.
10. A combined cycle power device is characterized in that a high-temperature regenerator is added in any combined cycle power device according to claims 2-3, a circulation medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and adjusted to be communicated with the expansion speed increaser (13) through a high-temperature regenerator (17) and the high-temperature heat exchanger (8), a circulation medium channel of the expansion speed increaser (13) is communicated with the expansion speed increaser (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10), and adjusted to be communicated with the diffuser pipe (1) through a circulation medium channel of the expansion speed increaser (13) through the high-temperature regenerator (17), the medium-temperature evaporator (11) and the low-temperature evaporator (10), so that the combined cycle power device is formed.
11. A combined cycle power device is characterized in that a high-temperature heat regenerator, a newly-increased compressor and a newly-increased high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulation medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and is adjusted to be communicated with the newly-increased compressor (A) through a high-temperature heat regenerator (17) and the high-temperature heat exchanger (8), a circulation medium channel of the newly-increased compressor (A) is communicated with the expansion speed increaser (13) through a newly-increased high-temperature heat exchanger (B), a circulation medium channel of the expansion speed increaser (13) is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10) and is adjusted to be communicated with the expansion speed increaser (13) through a high-temperature heat regenerator (17), a medium-temperature evaporator (11) and a low-temperature evaporator (10) and is communicated with the diffuser pipe (1), the internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) to adjust that the internal combustion engine (12) is communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), and the expansion speed increaser (13) is connected with the newly-increased compressor (A) and transmits power to form a combined cycle power device.
12. A combined cycle power device is characterized in that a dual-energy compressor, a high-temperature heat regenerator and a newly-increased high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulation medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and is adjusted to be communicated with the dual-energy compressor (15) through a high-temperature heat regenerator (17) and a high-temperature heat exchanger (8), a circulation medium channel of the dual-energy compressor (15) is communicated with the expansion speed increaser (13) through a newly-increased high-temperature heat exchanger (B), a circulation medium channel of the expansion speed increaser (13) is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10) and is adjusted to be communicated with the expansion speed increaser (13) through a high-temperature heat regenerator (17), a medium-temperature evaporator (11) and a low-temperature evaporator (10) and is communicated with the diffuser pipe (1), the internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) to adjust that the internal combustion engine (12) is communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), and the expansion speed increaser (13) is connected with the dual-energy compressor (15) and transmits power to form a combined cycle power device.
13. A combined cycle power device is characterized in that a high-temperature heat regenerator, a newly-increased diffuser pipe and a newly-increased high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulation medium channel of the diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and is adjusted to be communicated with a newly-increased diffuser pipe (C) through a high-temperature heat regenerator (17) and a high-temperature heat exchanger (8), the newly-increased diffuser pipe (C) is further communicated with the expansion speed increaser (13) through a newly-increased high-temperature heat exchanger (B), the expansion speed increaser (13) is provided with a circulation medium channel which is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10), and is adjusted to be communicated with the expansion speed increaser (13) through a high-temperature heat regenerator (17), a medium-temperature evaporator (11) and a low-temperature evaporator (10) and is communicated with the diffuser pipe (1), the internal combustion engine (12) is adjusted to be communicated with the outside through the high-temperature heat exchanger (8) by a gas channel, and the internal combustion engine (12) is communicated with the outside through the newly-added high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), so that the combined cycle power device is formed.
14. A combined cycle power device is characterized in that a high-temperature regenerator, a new expansion machine and a new high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a cycle medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and is adjusted to be communicated with the new expansion machine (D) through a high-temperature regenerator (17) and a high-temperature heat exchanger (8), the cycle medium channel of the new expansion machine (D) is communicated with the expansion speed increaser (13) through a new high-temperature heat exchanger (B), the cycle medium channel of the expansion speed increaser (13) is communicated with the expansion speed increaser (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10), and is adjusted to be communicated with the expansion speed increaser (13) through the high-temperature regenerator (17), the medium-temperature evaporator (11) and the low-temperature evaporator (10) and is communicated with the diffuser pipe (1), the internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) to adjust that the internal combustion engine (12) is communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), and the newly-increased expansion machine (D) is connected with the outside and transmits power to form a combined cycle power device.
15. A combined cycle power plant is characterized in that a second expansion speed increaser, a high-temperature heat regenerator and a new high-temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a circulation medium channel of a diffuser pipe (1) is communicated with the expansion speed increaser (13) through the high-temperature heat exchanger (8) and is adjusted to be communicated with the second expansion speed increaser (16) through a high-temperature heat regenerator (17) and the high-temperature heat exchanger (8), a circulation medium channel of the second expansion speed increaser (16) is communicated with the expansion speed increaser (13) through a new high-temperature heat exchanger (B), a circulation medium channel of the expansion speed increaser (13) is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10) and is adjusted to be communicated with the expansion speed increaser (13) through the high-temperature heat regenerator (17), The medium-temperature evaporator (11) and the low-temperature evaporator (10) are communicated with the diffuser pipe (1), a fuel gas channel of the internal combustion engine (12) is communicated with the outside through the high-temperature heat exchanger (8) and adjusted to be communicated with the outside through the new high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), and the second expansion speed increaser (16) is connected with the outside and transmits power to form a combined cycle power device.
16. A combined cycle power device is characterized in that in any combined cycle power device of claims 2-3, a spray pipe, a high-temperature regenerator and a newly-increased high-temperature heat exchanger are added, a circulation medium channel of a diffuser pipe (1) is communicated with an expansion speed increaser (13) through a high-temperature heat exchanger (8) and adjusted to be communicated with the spray pipe (3) through a high-temperature regenerator (17) and the high-temperature heat exchanger (8), a circulation medium channel of the diffuser pipe (1) is communicated with the expansion speed increaser (13) through the newly-increased high-temperature heat exchanger (B), a circulation medium channel of the expansion speed increaser (13) is communicated with the diffuser pipe (1) through a medium-temperature evaporator (11) and a low-temperature evaporator (10) and adjusted to be communicated with the expansion speed increaser (13) through the high-temperature regenerator (17), the medium-temperature evaporator (11) and the low-temperature evaporator (10) and communicated with the diffuser pipe (1), the internal combustion engine (12) is adjusted to be communicated with the outside through the high-temperature heat exchanger (8) by a gas channel, and the internal combustion engine (12) is communicated with the outside through the newly-added high-temperature heat exchanger (B) and the high-temperature heat exchanger (8), so that the combined cycle power device is formed.
17. A combined cycle power device is characterized in that a heat regenerator, a third circulating pump, a second heat regenerator and a fourth circulating pump are added in any combined cycle power device of claims 1 to 16, a condenser (9) is provided with a condensate pipeline which is communicated with a low-temperature evaporator (10) through a circulating pump (6) and is adjusted to be that the condenser (9) is provided with a condensate pipeline which is communicated with the heat regenerator (18) through the circulating pump (6), an expansion machine (2) is additionally provided with a steam extraction channel which is communicated with the heat regenerator (18), and the heat regenerator (18) is further provided with a condensate pipeline which is communicated with the low-temperature evaporator (10) through a third circulating pump (19); a condenser (9) is communicated with a medium-temperature evaporator (11) through a condensate pipeline of a second circulating pump (7) and adjusted to be that the condenser (9) is communicated with a second heat regenerator (20) through the second circulating pump (7), a second steam extraction channel is additionally arranged on an expander (2) and is communicated with the second heat regenerator (20), and the second heat regenerator (20) is communicated with the medium-temperature evaporator (11) through a condensate pipeline of a fourth circulating pump (21) to form a combined cycle power device.
18. A combined cycle power device is characterized in that a preheater and a second preheater are added in any combined cycle power device of claims 1-16, a condensate pipeline of a condenser (9) is communicated with a low-temperature evaporator (10) through a circulating pump (6) and is adjusted to be communicated with the low-temperature evaporator (10) through the circulating pump (6) and the preheater (22), a condensate pipeline of the condenser (9) is communicated with a medium-temperature evaporator (11) through the second circulating pump (7) and is adjusted to be communicated with the condenser (9) through the condensate pipeline of the second circulating pump (7) and the medium-temperature evaporator (11), and the preheater (22) and the second preheater (23) are respectively provided with a heat medium channel to be communicated with the outside to form the combined cycle power device.
19. A combined cycle power plant, in any combined cycle power plant of claim 18, wherein a condenser (9) is provided with a condensate pipeline which is communicated with a low-temperature evaporator (10) through a circulating pump (6) and a preheater (22), the condenser (9) is provided with a condensate pipeline which is communicated with a medium-temperature evaporator (11) through a second circulating pump (7) and a second preheater (23), the combined cycle power plant is adjusted to be that the condenser (9) is provided with a condensate pipeline which is communicated with the low-temperature evaporator (10) directly after passing through the circulating pump (6) and the preheater (22), and the second pipeline is communicated with the medium-temperature evaporator (11) through the second circulating pump (7) and the second preheater (23), so as to form the combined cycle power plant.
20. A combined cycle power plant, wherein an intermediate reheater is added to any of the combined cycle power plants described in claims 2 to 19, the low temperature evaporator (10) having a steam passage communicating with the expander (2) and the expander (2) having a steam passage communicating with the condenser (9) is adjusted so that the low temperature evaporator (10) having a steam passage communicating with the expander (2), the expander (2) having an intermediate reheated steam passage communicating with the expander (2) through the intermediate reheater (24) and the expander (2) having a steam passage communicating with the condenser (9), the intermediate reheater (24) and the heat medium passage communicating with the outside, thereby forming a combined cycle power plant.
21. A combined cycle power plant, which is characterized in that in any combined cycle power plant of claims 2 to 16, a second condenser is added, a second expander (4) is communicated with the condenser (9) through a steam channel, the second expander (4) is communicated with the second condenser (25) through a steam channel, the condenser (9) is communicated with a medium temperature evaporator (11) through a second circulating pump (7) through a condensate pipeline, the second condenser (25) is communicated with the medium temperature evaporator (11) through the second circulating pump (7) through a condensate pipeline, and the second condenser (25) is also communicated with the outside through a cooling medium channel to form the combined cycle power plant.
22. A combined cycle power device is characterized in that in any combined cycle power device of claims 2-20, a cooling medium channel of an internal combustion engine (12) communicated with the outside is eliminated, a newly-added circulating pump is added, a condensate pipeline is additionally arranged on a condenser (9), the condensate pipeline is communicated with the internal combustion engine (12) through the newly-added circulating pump (E), and then a steam channel of the internal combustion engine (12) is communicated with an expander (2) or a second expander (4) to form the combined cycle power device.
23. A combined cycle power device is characterized in that in any combined cycle power device of claims 2-20, a cooling medium channel of an internal combustion engine (12) communicated with the outside is cancelled, a newly added circulating pump and a newly added superheater are added, a condensate pipeline additionally arranged on a condenser (9) is communicated with the internal combustion engine (12) through the newly added circulating pump (E), then a steam channel of the internal combustion engine (12) is communicated with an expander (2) or a second expander (4) through the newly added superheater (F), and a heat medium channel of the newly added superheater (F) is communicated with the outside, so that the combined cycle power device is formed.
24. A combined cycle power plant, in any combined cycle power plant of claim 21, a cooling medium channel of the internal combustion engine (12) communicated with the outside is cancelled, a newly-added circulating pump is added, a condensate pipeline is additionally arranged on the second condenser (25), the condensate pipeline is communicated with the internal combustion engine (12) through the newly-added circulating pump (E), and then a steam channel of the internal combustion engine (12) is communicated with the second expander (4), so that the combined cycle power plant is formed.
25. A combined cycle power plant, in any combined cycle power plant of claim 21, a cooling medium channel of the internal combustion engine (12) communicated with the outside is cancelled, a new circulating pump and a new superheater are added, a condensate pipeline additionally arranged on the second condenser (25) is communicated with the internal combustion engine (12) through the new circulating pump (E), then a steam channel of the internal combustion engine (12) is communicated with the second expander (4) through the new superheater (F), and a heat medium channel of the new superheater (F) is communicated with the outside, so that the combined cycle power plant is formed.
CN201911146404.0A 2018-11-22 2019-11-13 Combined cycle power plant Pending CN110985149A (en)

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CN2018114622183 2018-11-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953026A (en) * 2018-11-22 2020-04-03 李华玉 Combined cycle power plant
WO2022152007A1 (en) * 2021-01-17 2022-07-21 李华玉 Dual-fuel combined circulating power apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110953026A (en) * 2018-11-22 2020-04-03 李华玉 Combined cycle power plant
WO2022152007A1 (en) * 2021-01-17 2022-07-21 李华玉 Dual-fuel combined circulating power apparatus

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