US20220220868A1 - Combined cycle power device - Google Patents
Combined cycle power device Download PDFInfo
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- US20220220868A1 US20220220868A1 US17/609,312 US202017609312A US2022220868A1 US 20220220868 A1 US20220220868 A1 US 20220220868A1 US 202017609312 A US202017609312 A US 202017609312A US 2022220868 A1 US2022220868 A1 US 2022220868A1
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- Prior art keywords
- expander
- channel connected
- compressor
- heat exchanger
- evaporator
- Prior art date
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- Abandoned
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- 239000002826 coolant Substances 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000003507 refrigerant Substances 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims description 29
- 238000000605 extraction Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 34
- 238000000034 method Methods 0.000 description 17
- 239000000446 fuel Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B21/00—Combinations of two or more machines or engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01B23/08—Adaptations for driving, or combinations with, pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
-
- 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
Definitions
- the present invention belongs to the flied of energy and power technology.
- the vapor power device with the outside combustion for example, its heat source has the dual characteristics of high-temperature and variable temperature.
- the material's temperature resistance and pressure resistance abilities and safety concerns limit the parameters of the cycle's working medium. Therefore, there is a big temperature difference between the working medium and the heat source, which leads to big irreversible loss and low efficiency. This means that there is great potential to improve the thermal efficiency.
- the present invention provides a combined cycle power device with high thermal efficiency, strong safety, adaptation to high-temperature heat source or variable temperature heat source and response to various fuels.
- the combined cycle power device are mainly provided in the present invention, and the specific contents of the present invention are as follows:
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, a compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected an expander, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser.
- the high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander and the third expander connect the compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander and a compressor have a vapor channel which passes through a high-temperature regenerator and connects the high-temperature heat exchanger respectively,
- the high-temperature heat exchanger has a vapor channel connected an expander
- the expander has a low-pressure vapor channel connected the high-temperature regenerator
- the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the high-temperature regenerator has a low-pressure vapor channel connected the evaporator
- the high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander and the third expander connect the compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the fourth expander.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander and a compressor have a vapor channel connects the high-temperature heat exchanger respectively, the high-temperature heat exchanger has a vapor channel which passes through a intermediate vapor inlet channel and connects the fourth expander, the fourth expander has a intermediate low-pressure vapor channel connected the evaporator, the high-temperature heat exchanger has a vapor channel connected the expander, the expander has a low-pressure vapor channel connected the evaporator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively
- the high-temperature heat exchanger has the heat source medium channel connected the outside
- the condenser has the cooling medium channel connected the outside
- the evaporator has the heat source medium channel connected the outside if necessary
- the expander, the second expander, the third expander and the fourth expander connect the compressor and transmit power.
- the expander, the second expander, the third expander and the fourth expander connect the compressor and the pump and transmit power if necessary
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the second high-temperature heat exchanger.
- An evaporator has a vapor channel which passes through the second high-temperature heat exchanger and connects the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander and a compressor have a vapor channel connects the high-temperature heat exchanger respectively,
- the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the expander, the expander has a low-pressure vapor channel connected the evaporator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively, the third expander has a low-pressure vapor channel connected
- the high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside respectively, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander and the third expander connect the compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator
- the second expander has a vapor channel connected the high-temperature heat exchanger
- the compressor has a vapor channel connected the high-temperature heat exchanger
- the high-temperature heat exchanger has a vapor channel connected the expander
- the expander has a low-pressure vapor channel connected the evaporator
- the heating unit has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel and connects the heating unit
- the third expander has a low-pressure
- the high-temperature heat exchanger has the heat source medium channel connected the outside
- the condenser has the cooling medium channel connected the outside
- the evaporator has the heat source medium channel connected the outside
- the heating unit has the heated medium channel connected the outside
- the expander, the second expander and the third expander connect the compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator
- the second expander has a vapor channel connected the high-temperature heat exchanger
- the compressor has a vapor channel connected the high-temperature heat exchanger
- the high-temperature heat exchanger has a vapor channel connected the expander
- the evaporator has a low-pressure vapor channel connected the heating unit has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator
- the heating unit has a low-pressure vapor channel connected the compressor and the third expander respectively
- the third expander has a low-pressure
- the high-temperature heat exchanger has the heat source medium channel connected the outside
- the condenser has the cooling medium channel connected the outside
- the evaporator has the heat source medium channel connected the outside
- the heating unit has the heated medium channel connected the outside
- the expander, the second expander and the third expander connect the compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second compressor.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the second compressor, the second compressor has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser.
- the high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside, the expander, the second expander and the third expander connect the compressor and the second compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and the second compressor and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the fourth expander and the second high-temperature heat exchanger.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the fourth expander, the fourth expander has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser.
- the high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, or the evaporator has the heat source medium channel connected the outside, the expander, the second expander, the third expander and the fourth expander connect the compressor and transmit power.
- the expander, the second expander, the third expander, and the fourth expander connect the compressor and the pump and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second compressor.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel which passes through a high-temperature regenerator and connects the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the second compressor, the second compressor has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the expander has a low-pressure vapor channel connected the high-temperature heat regenerator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the high-temperature regenerator has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser.
- the high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, or the evaporator has the heat source medium channel connected the outside, the expander, the second expander and the third expander connect the compressor and the second compressor and transmit power.
- the expander, the second expander and the third expander connect the compressor and the pump and the second compressor and transmit power if necessary.
- a combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the fourth expander and the second high-temperature heat exchanger.
- An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel which passes through a high-temperature regenerator and connects the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the fourth expander, the fourth expander has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the expander has a low-pressure vapor channel connected the high-temperature heat regenerator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the high-temperature regenerator has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser.
- the high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, or the evaporator ( 8 ) has the heat source medium channel connected the outside, the expander, the second expander, the third expander and the fourth expander connect the compressor and transmit power.
- the expander, the second expander, the third expander and the fourth expander connect the compressor and the pump and the second compressor and transmit power if necessary.
- FIG. 1 is a type 1 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 2 is a type 2 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 3 is a type 3 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 4 is a type 4 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 5 is a type 5 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 6 is a type 6 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 7 is a type 7 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 8 is a type 8 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 9 is a type 9 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 10 is a type 10 example general flow chart of a combined cycle power device provided in the present invention.
- FIG. 11 is a type 11 example general flow chart of a combined cycle power device provided in the present invention.
- 1 expander
- 2 the second expander
- 3 compressor
- 4 the third expander
- 5 pump
- 6 high-temperature heat exchanger
- 7 condenser
- 8 evaporator (waste heat boiler)
- 9 high-temperature regenerator
- 10 the fourth expander
- 11 the second high-temperature heat exchanger
- 12 the heating unit
- 13 the second compressor
- 14 low-temperature regenerator
- 15 the second pump.
- the combined cycle power device in FIG. 1 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8
- the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6
- a compressor 3 has a vapor channel connected the high-temperature heat exchanger 6
- the high-temperature heat exchanger 6 has a vapor channel connected an expander 1
- the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the expander 1 has a low-pressure vapor channel connected the evaporator 8
- the third expander 4 has a low-pressure vapor channel connected the
- the high-temperature heat exchanger 6 has the heat source medium channel connected the outside
- the condenser 7 has the cooling medium channel connected the outside
- the evaporator 8 has the heat source medium channel connected the outside if necessary
- the expander 1 , the second expander 2 and the third expander 4 connects the compressor 3 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from compressor 3 enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work.
- the low-pressure vapor discharged from the expander 1 flows through the evaporator 8 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the evaporator 8 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the work output by expander 1 is greater than the power required by compressor 3 .
- the expression “the expander 1 connects compressor 3 and transmits power” can also be used. And combined with the expression “the expander 1 provides power to compressor 3 , and the expander 1 , the second expander 2 and the third expander 4 provide power to the outside” from the perspective of process, it reflects that “the expander 1 , the second expander 2 and the third expander 4 connect compressor 3 and transmit power”. But this is more cumbersome.
- the combined cycle power device in FIG. 2 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8 , the second expander 2 has a vapor channel which passes through a high-temperature regenerator 9 and connects the high-temperature heat exchanger 6 , the high-temperature heat exchanger 6 has a vapor channel connected an expander 1 , the expander 1 has a low-pressure vapor channel connected the high-temperature regenerator 9 , the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the high-temperature regenerator 9 has a low-pressure vapor channel connected the evaporator 8 , the third expander 4 has a low-pressure vapor channel connected the condenser 7 .
- the high-temperature heat exchanger 6 has the heat source medium channel connected the outside
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work, flows through the a high-temperature regenerator 9 for heat absorption and then enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work.
- the low-pressure vapor discharged from the expander 1 flows through the high-temperature regenerator 9 and the evaporator 8 to release heat and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the evaporator 8 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 3 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the fourth expander.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8
- the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6
- the high-temperature heat exchanger 6 has a vapor channel which passes through a intermediate vapor inlet channel and connects the fourth expander 10
- the fourth expander 10 has a intermediate low-pressure vapor channel connected the evaporator 8
- the high-temperature heat exchanger 6 has a vapor channel connected the expander 1
- the expander 1 has a low-pressure vapor channel connected the evaporator 8
- the evaporator 8 has
- the high-temperature heat exchanger 6 has the heat source medium channel connected the outside, the condenser 7 has the cooling medium channel connected the outside, the expander 1 , the second expander 2 , the third expander 4 and the fourth expander 10 connect the compressor 3 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the first current passes through a intermediate vapor inlet channel of the high-temperature heat exchanger 6 and connects the fourth expander 10 to depressurize and output work.
- the second current flows through the expander 1 to depressurize and output work.
- the low-pressure vapor discharged from the fourth expander 10 flows through a intermediate vapor inlet channel of the evaporator 8 and enters the evaporator 8 .
- the low-pressure vapor discharged from the expander enters the evaporator 8 and mixes the low-pressure vapor from the fourth expander 10 to release heat and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 , the third expander 4 and fourth expander 10 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 , the third expander 4 and fourth expander 10 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 4 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the second high-temperature heat exchanger.
- An evaporator 8 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8 , the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6 , the compressor 3 has a vapor channel connected the high-temperature heat exchanger 6 , the high-temperature heat exchanger 6 has a vapor channel connected the expander 1 , the expander 1 has a low-pressure vapor channel connected the evaporator 8 , the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively, the third expander 4 has a low-pressure vapor channel connected the condenser 7 .
- the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside respectively, the condenser 7 has the cooling medium channel connected the outside, the expander ( 1 ), the second expander ( 2 ) and the third expander ( 4 ) connect the compressor ( 3 ) and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the high-temperature heat exchanger 6 for heat absorption and flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the low-pressure vapor discharged from the expander 1 flows through the evaporator 8 to release heat and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the evaporator 8 in FIG. 1 can be regarded as the result of the combination of the evaporator 8 and the second high-temperature heat exchanger 11 in FIG. 4 ;
- the layout of FIG. 4 is reasonable.
- the combined cycle power device in FIG. 5 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8
- the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6
- the compressor 3 has a vapor channel connected the high-temperature heat exchanger 6
- the high-temperature heat exchanger 6 has a vapor channel connected the expander 1
- the heating unit 12 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the expander 1 has a low-pressure vapor channel connected the heating unit 12
- the third expander 4 has a low-pressure vapor channel connected
- the high-temperature heat exchanger 6 has the heat source medium channel connected the outside
- the condenser 7 has the cooling medium channel connected the outside
- the evaporator 8 has the heat source medium channel connected the outside
- the heating unit 12 has the heated medium channel connected the outside
- the expander 1 , the second expander 2 and the third expander 4 connect the compressor 3 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the low-pressure vapor discharged from the expander 1 flows through the heating unit 12 to release heat and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the evaporator 8 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the heated medium takes away the medium temperature heat load through the heating unit 12 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 6 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8
- the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6
- the compressor 3 has a vapor channel connected the high-temperature heat exchanger 6
- the high-temperature heat exchanger 6 has a vapor channel connected the expander 1
- the evaporator 8 has a low-pressure vapor channel connected the heating unit 12 has a vapor channel connected the that the expander 1 has a low-pressure vapor channel connected the evaporator 8
- the heating unit 12 has a low-pressure vapor channel connected the compressor 3
- the high-temperature heat exchanger 6 has the heat source medium channel connected the outside
- the condenser 7 has the cooling medium channel connected the outside
- the heating unit 12 has the heated medium channel connected the outside
- the expander 1 , the second expander 2 and the third expander 4 connect the compressor 3 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the low-pressure vapor discharged from the expander 1 flows through the evaporator 8 and the heating unit 12 to release heat and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the heated medium takes away the medium temperature heat load through the heating unit 12 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 7 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second compressor.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8
- the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6
- the compressor 3 has a vapor channel connected the high-temperature heat exchanger 6
- the high-temperature heat exchanger 6 has a vapor channel connected the second compressor 13
- the second compressor 13 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects the expander 1
- the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the expander 1 has a low-pressure vapor channel connected the evaporator 8
- the third expander 4 has a low-pressure vapor channel connected the condenser 7 .
- the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, the condenser 7 has the cooling medium channel connected the outside, the expander 1 , the second expander 2 and the third expander 4 connect the compressor 3 and the second compressor ( 13 ) and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the low-pressure vapor discharged from the expander 1 flows through the evaporator 8 and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the second compressor 13 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 , the second compressor 13 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 8 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the fourth expander and the second high-temperature heat exchanger.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8 , the second expander 2 has a vapor channel connected the high-temperature heat exchanger 6 , the compressor 3 has a vapor channel connected the high-temperature heat exchanger 6 , the high-temperature heat exchanger 6 has a vapor channel connected the fourth expander 10 , the fourth expander 10 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects the expander 1 , the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the expander 1 has a low-pressure vapor channel connected the evaporator 8 , the third expander 4 has a low-pressure vapor channel connected the condenser 7 .
- the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, the condenser 7 has the cooling medium channel connected the outside, the expander 1 , the second expander 2 , the third expander 4 and the fourth expander 10 connect the compressor 3 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption.
- the low-pressure vapor discharged from the expander 1 flows through the evaporator 8 and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 , the third expander 4 and fourth expander 10 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 and fourth expander 10 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 9 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second compressor.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8 , the second expander 2 has a vapor channel which passes through a high-temperature regenerator 9 and connects the high-temperature heat exchanger 6 , the high-temperature heat exchanger 6 has a vapor channel connected the second compressor 13 , the second compressor 13 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects the expander 1 , the expander 1 has a low-pressure vapor channel connected the high-temperature regenerator 9 , the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the high-temperature regenerator 9 has a low-pressure vapor channel connected the evaporator 8 , the third expander 4 has a low-pressure vapor channel connected the con
- the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, the condenser 7 has the cooling medium channel connected the outside, the expander 1 , the second expander 2 and the third expander 4 connect the compressor 3 and the second compressor 13 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work, flows through the high-temperature regenerator 9 for heat absorption, and then enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from compressor 3 flows through the high-temperature regenerator 9 and enters the high-temperature heat exchanger 6 for heat absorption;
- the low-pressure vapor discharged from the expander 1 flows through the high-temperature regenerator 9 and the evaporator 8 and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 , the third expander 4 and fourth expander 10 supply power to the compressor 3 , the second compressor 13 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 and fourth expander 10 supply power to the compressor 3 , the second compressor 13 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 10 works as follows:
- the combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the fourth expander and the second high-temperature heat exchanger.
- An evaporator 8 has a vapor channel connected the second expander 2 has a vapor channel connected the that a condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8 , the second expander 2 has a vapor channel which passes through a high-temperature regenerator 9 and connects the high-temperature heat exchanger 6 , the high-temperature heat exchanger 6 has a vapor channel connected the fourth expander 10 , the fourth expander 10 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects the expander 1 , the expander 1 has a low-pressure vapor channel connected the high-temperature regenerator 9 , the evaporator 8 has a low-pressure vapor channel connected the compressor 3 and the third expander 4 respectively has a vapor channel connected the that the high-temperature regenerator 9 has a low-pressure vapor channel connected the evaporator 8 , the third expander 4 has a low-pressure vapor channel connected
- the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, the condenser 7 has the cooling medium channel connected the outside, the expander 1 , the second expander 2 , the third expander 4 and the fourth expander 10 connect the compressor 3 and transmit power.
- the condensate of the condenser 7 flows through the pump 5 and enters into the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the expander 2 to depressurize and output work, flows through the high-temperature regenerator 9 for heat absorption, and then enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from compressor 3 flows through the high-temperature regenerator 9 and enters the high-temperature heat exchanger 6 for heat absorption;
- the low-pressure vapor discharged from the expander 1 connected the high-temperature regenerator 9 and the evaporator 8 and cool down and then is divided into two currents.
- the first current enters the compressor 3 for pressure rise and temperature rise.
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 , the third expander 4 and fourth expander 10 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 and fourth expander 10 supply power to the compressor 3 , the pump 5 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device in FIG. 11 works as follows:
- (1) Device structure The device according to any one of FIG. 1 to FIG. 11 , wherein adding the low-temperature regenerator and the second pump, adjusting that the condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects the evaporator 8 to that the condenser 7 has a liquid refrigerant pipe which passes through a pump 5 and connects a low-temperature regenerator 14 , the compressor 3 adds the vapor extraction channel connected the low-temperature regenerator 14 , the low-temperature regenerator 14 has a liquid refrigerant pipe which passes through the second pump 15 and connects the evaporator 8 , a combined cycle power device is formed.
- the condensate of the condenser 7 flows through the pump 5 and enters the low-temperature regenerator 14 in which it mixes with the vapor extraction from the compressor 3 for heat absorption.
- the vapor extraction releases and is condensed.
- the condensate of the low-temperature regenerator 14 flows through the second pump 15 and enters the evaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the second expander 2 to depressurize and output work, and then enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from compressor 3 enters the high-temperature heat exchanger 6 for heat absorption.
- the vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work.
- the low-pressure vapor discharged from the expander 1 flows through the evaporator 8 to release heat and cool down, and then is divided into two currents.
- the first current enters the compressor 3 .
- the second current flows through the third expander 4 to depressurize and output work and enters the condenser 7 to release heat and condense.
- the low-pressure vapor entering the compressor 3 is compressed to the certain extent and then divided into two currents.
- the first current enters the low-temperature regenerator 12 to release heat and condense by the intermediate extraction channel.
- the second current continues to boost pressure and temperature.
- the heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the evaporator 8 .
- the cooling medium takes away the low-temperature heat load through the condenser 7 .
- the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 and the outside. Or the expander 1 , the second expander 2 and the third expander 4 supply power to the compressor 3 , the pump 5 , the second pump 15 and the outside if necessary.
- the combined cycle power device is formed.
- the combined cycle power device proposed by the present invention has the following effects and advantages:
- the circulating working medium absorbs heat at high-temperature heat under low pressure.
- the temperature difference loss between the circulating working medium and the high-temperature heat source is small, which is conducive to improving the thermal efficiency of the system and the safety of the device.
- the circulating working medium mainly relies on the condensation phase transformation process to realize low-temperature heat release.
- the temperature difference loss between the circulating working medium and the environment is controllable, which is conducive to improving the thermal efficiency.
- the present invention adopts the low-pressure and high-temperature operation mode to work in the high-temperature region. Therefore, the contradiction among thermal efficiency, the working medium's parameters and the material's temperature resistance and pressure resistance abilities, which is common in traditional vapor power devices, can be resolved. The temperature difference loss between the heat source and the circulating medium can be greatly reduced, and the thermal efficiency can be greatly improved.
- the equipment is shared to increase the heat absorption process of the lower cycle (Rankine cycle) and improve the thermal efficiency.
- the present invention only uses a single working medium, which reduce the operation cost and improve the flexibility of thermal device.
- the present invention effectively deals with the high-temperature heat source and the variable temperature heat source, the high-quality fuel and the non high-quality fuel, and has a wide range of application.
- the device in the present invention can be selected to operate at low pressure, so as to greatly improve the operation safety of the device.
- the present invention can realize the heat recovery of enterprise device simply, actively, safely and efficiently.
- the present invention When the present invention is applied to the coal-fired thermal system, it can maintain the original advantages of the traditional steam power cycle in which water vapor is used as working medium and has a wide range of working parameters. According to the actual situation, the present invention can work in subcritical, critical, supercritical or ultra supercritical state, etc.
Abstract
The combined cycle power device in the present invention belongs to the field of energy and power technology. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An evaporator connects the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator. The second expander connects the high-temperature heat exchanger. A compressor connects the high-temperature heat exchanger. The high-temperature heat exchanger connects an expander. The evaporator connects the compressor and the third expander respectively has a vapor channel connected the that the expander connects the evaporator. The third expander connects the condenser. The high-temperature heat exchanger connects the outside. The condenser has the cooling medium channel. The expander, the second expander and the third expander connects the compressor.
Description
- The present invention belongs to the flied of energy and power technology.
- Cold demand, heat demand and power demand are common in human life and production. It is an important way to obtain and provide power by the conversion of thermal energy into mechanical energy. In general, the temperature of heat source reduces and varies with the release of heat. When fossil fuels are used as the primary energy, the heat source has the dual characteristics of both high-temperature and variable temperature. This makes it is difficult to transform more heat energy into mechanical energy using the power device based on a single thermal cycle. For high-quality fuel, the traditional gas-steam combined cycle can be used to obtain a high thermal efficiency. However, there are still some problems to be solved, such as high cost, large investment and low thermal efficiency to be improved.
- Take the vapor power device with the outside combustion for example, its heat source has the dual characteristics of high-temperature and variable temperature. For those vapor power devices based on the Rankine cycle, the material's temperature resistance and pressure resistance abilities and safety concerns limit the parameters of the cycle's working medium. Therefore, there is a big temperature difference between the working medium and the heat source, which leads to big irreversible loss and low efficiency. This means that there is great potential to improve the thermal efficiency.
- Humans need to use heat energy simply, actively, efficiently for achieving power. Therefore, the present invention provides a combined cycle power device with high thermal efficiency, strong safety, adaptation to high-temperature heat source or variable temperature heat source and response to various fuels.
- The combined cycle power device are mainly provided in the present invention, and the specific contents of the present invention are as follows:
- 1. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, a compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected an expander, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander and the third expander connect the compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- 2. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander and a compressor have a vapor channel which passes through a high-temperature regenerator and connects the high-temperature heat exchanger respectively, the high-temperature heat exchanger has a vapor channel connected an expander, the expander has a low-pressure vapor channel connected the high-temperature regenerator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the high-temperature regenerator has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander and the third expander connect the compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- 3. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the fourth expander. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander and a compressor have a vapor channel connects the high-temperature heat exchanger respectively, the high-temperature heat exchanger has a vapor channel which passes through a intermediate vapor inlet channel and connects the fourth expander, the fourth expander has a intermediate low-pressure vapor channel connected the evaporator, the high-temperature heat exchanger has a vapor channel connected the expander, the expander has a low-pressure vapor channel connected the evaporator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander, the third expander and the fourth expander connect the compressor and transmit power. The expander, the second expander, the third expander and the fourth expander connect the compressor and the pump and transmit power if necessary,
- 4. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the second high-temperature heat exchanger. An evaporator has a vapor channel which passes through the second high-temperature heat exchanger and connects the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander and a compressor have a vapor channel connects the high-temperature heat exchanger respectively, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the expander, the expander has a low-pressure vapor channel connected the evaporator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside respectively, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside if necessary, the expander, the second expander and the third expander connect the compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- 5. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the expander, the expander has a low-pressure vapor channel connected the evaporator, the heating unit has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel and connects the heating unit, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside, the heating unit has the heated medium channel connected the outside, the expander, the second expander and the third expander connect the compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- 6. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the expander, the evaporator has a low-pressure vapor channel connected the heating unit has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the heating unit has a low-pressure vapor channel connected the compressor and the third expander respectively, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger has the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside, the heating unit has the heated medium channel connected the outside, the expander, the second expander and the third expander connect the compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and transmit power if necessary.
- 7. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second compressor. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the second compressor, the second compressor has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, the evaporator has the heat source medium channel connected the outside, the expander, the second expander and the third expander connect the compressor and the second compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and the second compressor and transmit power if necessary.
- 8. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the fourth expander and the second high-temperature heat exchanger. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel connected the high-temperature heat exchanger, the compressor has a vapor channel connected the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the fourth expander, the fourth expander has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the expander has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, or the evaporator has the heat source medium channel connected the outside, the expander, the second expander, the third expander and the fourth expander connect the compressor and transmit power. The expander, the second expander, the third expander, and the fourth expander connect the compressor and the pump and transmit power if necessary.
- 9. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second compressor. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel which passes through a high-temperature regenerator and connects the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the second compressor, the second compressor has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the expander has a low-pressure vapor channel connected the high-temperature heat regenerator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the high-temperature regenerator has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, or the evaporator has the heat source medium channel connected the outside, the expander, the second expander and the third expander connect the compressor and the second compressor and transmit power. The expander, the second expander and the third expander connect the compressor and the pump and the second compressor and transmit power if necessary.
- 10. A combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the fourth expander and the second high-temperature heat exchanger. An evaporator has a vapor channel connected the second expander has a vapor channel connected the that a condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator, the second expander has a vapor channel which passes through a high-temperature regenerator and connects the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected the fourth expander, the fourth expander has a vapor channel which passes through the second high-temperature heat exchanger and connects the expander, the expander has a low-pressure vapor channel connected the high-temperature heat regenerator, the evaporator has a low-pressure vapor channel connected the compressor and the third expander respectively has a vapor channel connected the that the high-temperature regenerator has a low-pressure vapor channel connected the evaporator, the third expander has a low-pressure vapor channel connected the condenser. The high-temperature heat exchanger and the second high-temperature heat exchanger have the heat source medium channel connected the outside, the condenser has the cooling medium channel connected the outside, or the evaporator (8) has the heat source medium channel connected the outside, the expander, the second expander, the third expander and the fourth expander connect the compressor and transmit power. The expander, the second expander, the third expander and the fourth expander connect the compressor and the pump and the second compressor and transmit power if necessary.
- 11. The device according to any one of claim 1-10, wherein adding the low-temperature regenerator and the second pump, adjusting that the condenser has a liquid refrigerant pipe which passes through a pump and connects the evaporator to that the condenser has a liquid refrigerant pipe which passes through a pump and connects a low-temperature regenerator, the compressor adds the vapor extraction channel connected the low-temperature regenerator, the low-temperature regenerator has a liquid refrigerant pipe which passes through the second pump and connects the evaporator, a combined cycle power device is formed.
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FIG. 1 is atype 1 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 2 is atype 2 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 3 is atype 3 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 4 is atype 4 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 5 is atype 5 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 6 is atype 6 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 7 is atype 7 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 8 is atype 8 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 9 is atype 9 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 10 is atype 10 example general flow chart of a combined cycle power device provided in the present invention. -
FIG. 11 is atype 11 example general flow chart of a combined cycle power device provided in the present invention. - In the figures, 1—expander, 2—the second expander, 3—compressor, 4—the third expander, 5—pump, 6—high-temperature heat exchanger, 7—condenser, 8—evaporator (waste heat boiler), 9—high-temperature regenerator, 10—the fourth expander, 11—the second high-temperature heat exchanger, 12—the heating unit, 13—the second compressor, 14—low-temperature regenerator, 15—the second pump.
- The first thing to note is that, when describing the cycle's structures and processes, the processes will not be repeatedly described if not necessary, and the obvious processes will not be described. The detailed description of the present invention is as follows:
- The combined cycle power device in
FIG. 1 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, acompressor 3 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected anexpander 1, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that theexpander 1 has a low-pressure vapor channel connected theevaporator 8, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 has the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theevaporator 8 has the heat source medium channel connected the outside if necessary, theexpander 1, thesecond expander 2 and thethird expander 4 connects thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 flows through theevaporator 8 to release heat and cool down, and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and theevaporator 8. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - Combined with
FIG. 1 , what needs to be declared is: - {circle around (1)} In terms of structure: Reasons for adopting the expression “the
expander 1, thesecond expander 2 and thethird expander 4 connect thecompressor 3 and transmit power” is mainly used to indicate that the power required by thecompressor 3 comes from the expander of the device itself rather than from the outside. It is not difficult to understand that the obvious connection is that the four devices are coaxially connected together. - {circle around (2)} Generally, the work output by
expander 1 is greater than the power required bycompressor 3. The expression “theexpander 1 connectscompressor 3 and transmits power” can also be used. And combined with the expression “theexpander 1 provides power tocompressor 3, and theexpander 1, thesecond expander 2 and thethird expander 4 provide power to the outside” from the perspective of process, it reflects that “theexpander 1, thesecond expander 2 and thethird expander 4connect compressor 3 and transmit power”. But this is more cumbersome. - {circle around (3)} The applicant believes that for those skilled in the art, the expression “the
expander 1, thesecond expander 2 and thethird expander 4connect compressor 3 and transmit power” is clear, and will not cause trouble. - The combined cycle power device in
FIG. 2 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel which passes through a high-temperature regenerator 9 and connects the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected anexpander 1, theexpander 1 has a low-pressure vapor channel connected the high-temperature regenerator 9, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that the high-temperature regenerator 9 has a low-pressure vapor channel connected theevaporator 8, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 has the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theexpander 1, thesecond expander 2 and thethird expander 4 connects thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work, flows through the a high-temperature regenerator 9 for heat absorption and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and flows through the high-temperature regenerator 9 for heat absorption and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 flows through the high-temperature regenerator 9 and theevaporator 8 to release heat and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and theevaporator 8. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 3 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the fourth expander. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel which passes through a intermediate vapor inlet channel and connects thefourth expander 10, thefourth expander 10 has a intermediate low-pressure vapor channel connected theevaporator 8, the high-temperature heat exchanger 6 has a vapor channel connected theexpander 1, theexpander 1 has a low-pressure vapor channel connected theevaporator 8, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 has the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theexpander 1, thesecond expander 2, thethird expander 4 and thefourth expander 10 connect thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and flows through the high-temperature exchanger 6 for heat absorption and enters the high-temperature heat exchanger 6 for heat absorption, and then is divided into two currents. The first current passes through a intermediate vapor inlet channel of the high-temperature heat exchanger 6 and connects thefourth expander 10 to depressurize and output work. The second current flows through theexpander 1 to depressurize and output work. The low-pressure vapor discharged from thefourth expander 10 flows through a intermediate vapor inlet channel of theevaporator 8 and enters theevaporator 8. The low-pressure vapor discharged from the expander enters theevaporator 8 and mixes the low-pressure vapor from thefourth expander 10 to release heat and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2, thethird expander 4 andfourth expander 10 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2, thethird expander 4 andfourth expander 10 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 4 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the second high-temperature heat exchanger. An
evaporator 8 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, thecompressor 3 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected theexpander 1, theexpander 1 has a low-pressure vapor channel connected theevaporator 8, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside respectively, thecondenser 7 has the cooling medium channel connected the outside, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through the high-temperature heat exchanger 6 for heat absorption and flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and passes through theexpander 1 to depressurize and output work, The low-pressure vapor discharged from theexpander 1 flows through theevaporator 8 to release heat and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - What I want to explain here is that: In comparison, the
evaporator 8 inFIG. 1 can be regarded as the result of the combination of theevaporator 8 and the second high-temperature heat exchanger 11 inFIG. 4 ; When the temperature difference of heat source medium is large, the layout ofFIG. 4 is reasonable. - The combined cycle power device in
FIG. 5 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, thecompressor 3 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected theexpander 1, theheating unit 12 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that theexpander 1 has a low-pressure vapor channel connected theheating unit 12, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 has the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theevaporator 8 has the heat source medium channel connected the outside, theheating unit 12 has the heated medium channel connected the outside, theexpander 1, thesecond expander 2 and thethird expander 4 connect thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and passes through theexpander 1 to depressurize and output work, The low-pressure vapor discharged from theexpander 1 flows through theheating unit 12 to release heat and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and theevaporator 8. The cooling medium takes away the low-temperature heat load through thecondenser 7. The heated medium takes away the medium temperature heat load through theheating unit 12. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 6 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, thecompressor 3 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected theexpander 1, theevaporator 8 has a low-pressure vapor channel connected theheating unit 12 has a vapor channel connected the that theexpander 1 has a low-pressure vapor channel connected theevaporator 8, theheating unit 12 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 has the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theheating unit 12 has the heated medium channel connected the outside, theexpander 1, thesecond expander 2 and thethird expander 4 connect thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and passes through theexpander 1 to depressurize and output work, The low-pressure vapor discharged from theexpander 1 flows through theevaporator 8 and theheating unit 12 to release heat and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6. The cooling medium takes away the low-temperature heat load through thecondenser 7. The heated medium takes away the medium temperature heat load through theheating unit 12. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 7 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second compressor. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, thecompressor 3 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected thesecond compressor 13, thesecond compressor 13 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects theexpander 1, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that theexpander 1 has a low-pressure vapor channel connected theevaporator 8, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theexpander 1, thesecond expander 2 and thethird expander 4 connect thecompressor 3 and the second compressor (13) and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and passes through thesecond compressor 13 for pressure rise and temperature rise, flows through the second high-temperature heat exchanger 11 for heat absorption and enters theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 flows through theevaporator 8 and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thesecond compressor 13 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5, thesecond compressor 13 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 8 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the fourth expander and the second high-temperature heat exchanger. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel connected the high-temperature heat exchanger 6, thecompressor 3 has a vapor channel connected the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected thefourth expander 10, thefourth expander 10 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects theexpander 1, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that theexpander 1 has a low-pressure vapor channel connected theevaporator 8, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theexpander 1, thesecond expander 2, thethird expander 4 and thefourth expander 10 connect thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and passes through thefourth expander 10 to depressurize and output work, flows through the second high-temperature heat exchanger 11 for heat absorption and enters theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 flows through theevaporator 8 and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2, thethird expander 4 andfourth expander 10 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 andfourth expander 10 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 9 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second compressor. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel which passes through a high-temperature regenerator 9 and connects the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected thesecond compressor 13, thesecond compressor 13 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects theexpander 1, theexpander 1 has a low-pressure vapor channel connected the high-temperature regenerator 9, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that the high-temperature regenerator 9 has a low-pressure vapor channel connected theevaporator 8, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theexpander 1, thesecond expander 2 and thethird expander 4 connect thecompressor 3 and thesecond compressor 13 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work, flows through the high-temperature regenerator 9 for heat absorption, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 flows through the high-temperature regenerator 9 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and passes through thecompressor 13 for pressure rise and temperature rise, flows through the second high-temperature heat exchanger 11 for heat absorption and enters theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 flows through the high-temperature regenerator 9 and theevaporator 8 and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2, thethird expander 4 andfourth expander 10 supply power to thecompressor 3, thesecond compressor 13 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 andfourth expander 10 supply power to thecompressor 3, thesecond compressor 13, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 10 works as follows: - (1) Device structure. The combined cycle power device comprises an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the fourth expander and the second high-temperature heat exchanger. An
evaporator 8 has a vapor channel connected thesecond expander 2 has a vapor channel connected the that acondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8, thesecond expander 2 has a vapor channel which passes through a high-temperature regenerator 9 and connects the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected thefourth expander 10, thefourth expander 10 has a vapor channel which passes through the second high-temperature heat exchanger 11 and connects theexpander 1, theexpander 1 has a low-pressure vapor channel connected the high-temperature regenerator 9, theevaporator 8 has a low-pressure vapor channel connected thecompressor 3 and thethird expander 4 respectively has a vapor channel connected the that the high-temperature regenerator 9 has a low-pressure vapor channel connected theevaporator 8, thethird expander 4 has a low-pressure vapor channel connected thecondenser 7. The high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11 have the heat source medium channel connected the outside, thecondenser 7 has the cooling medium channel connected the outside, theexpander 1, thesecond expander 2, thethird expander 4 and thefourth expander 10 connect thecompressor 3 and transmit power. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters into theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through theexpander 2 to depressurize and output work, flows through the high-temperature regenerator 9 for heat absorption, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 flows through the high-temperature regenerator 9 and enters the high-temperature heat exchanger 6 for heat absorption; The vapor discharged from the high-temperature heat exchanger 6 and connects thefourth expander 10, thefourth expander 10 flows through the second high-temperature heat exchanger 11 for heat absorption and enters theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 connected the high-temperature regenerator 9 and theevaporator 8 and cool down and then is divided into two currents. The first current enters thecompressor 3 for pressure rise and temperature rise. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the second high-temperature heat exchanger 11. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2, thethird expander 4 andfourth expander 10 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 andfourth expander 10 supply power to thecompressor 3, thepump 5 and the outside if necessary. The combined cycle power device is formed. - The combined cycle power device in
FIG. 11 works as follows: - (1) Device structure. The device according to any one of
FIG. 1 toFIG. 11 , wherein adding the low-temperature regenerator and the second pump, adjusting that thecondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects theevaporator 8 to that thecondenser 7 has a liquid refrigerant pipe which passes through apump 5 and connects a low-temperature regenerator 14, thecompressor 3 adds the vapor extraction channel connected the low-temperature regenerator 14, the low-temperature regenerator 14 has a liquid refrigerant pipe which passes through thesecond pump 15 and connects theevaporator 8, a combined cycle power device is formed. - (2) Working processes. The condensate of the
condenser 7 flows through thepump 5 and enters the low-temperature regenerator 14 in which it mixes with the vapor extraction from thecompressor 3 for heat absorption. The vapor extraction releases and is condensed. The condensate of the low-temperature regenerator 14 flows through thesecond pump 15 and enters theevaporator 8 in which it absorbs heat, vaporizes and superheats, flows through thesecond expander 2 to depressurize and output work, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged fromcompressor 3 enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through theexpander 1 to depressurize and output work. The low-pressure vapor discharged from theexpander 1 flows through theevaporator 8 to release heat and cool down, and then is divided into two currents. The first current enters thecompressor 3. The second current flows through thethird expander 4 to depressurize and output work and enters thecondenser 7 to release heat and condense. The low-pressure vapor entering thecompressor 3 is compressed to the certain extent and then divided into two currents. The first current enters the low-temperature regenerator 12 to release heat and condense by the intermediate extraction channel. The second current continues to boost pressure and temperature. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and theevaporator 8. The cooling medium takes away the low-temperature heat load through thecondenser 7. Theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3 and the outside. Or theexpander 1, thesecond expander 2 and thethird expander 4 supply power to thecompressor 3, thepump 5, thesecond pump 15 and the outside if necessary. The combined cycle power device is formed. - The technical effects of the present invention: the combined cycle power device proposed by the present invention has the following effects and advantages:
- (1) The circulating working medium absorbs heat at high-temperature heat under low pressure. The temperature difference loss between the circulating working medium and the high-temperature heat source is small, which is conducive to improving the thermal efficiency of the system and the safety of the device.
- (2) The circulating working medium mainly relies on the condensation phase transformation process to realize low-temperature heat release. The temperature difference loss between the circulating working medium and the environment is controllable, which is conducive to improving the thermal efficiency.
- (3) The present invention adopts the low-pressure and high-temperature operation mode to work in the high-temperature region. Therefore, the contradiction among thermal efficiency, the working medium's parameters and the material's temperature resistance and pressure resistance abilities, which is common in traditional vapor power devices, can be resolved. The temperature difference loss between the heat source and the circulating medium can be greatly reduced, and the thermal efficiency can be greatly improved.
- (4) In the present invention, the equipment is shared to increase the heat absorption process of the lower cycle (Rankine cycle) and improve the thermal efficiency.
- (5) The present invention only uses a single working medium, which reduce the operation cost and improve the flexibility of thermal device.
- (6) When the high-temperature expander is shared, the number of core equipment is reduced, which is conducive to reducing system investment and improving thermal efficiency.
- (7) The present invention effectively deals with the high-temperature heat source and the variable temperature heat source, the high-quality fuel and the non high-quality fuel, and has a wide range of application.
- (8) On the premise of realizing high thermal efficiency, the device in the present invention can be selected to operate at low pressure, so as to greatly improve the operation safety of the device.
- (9) The present invention can realize the heat recovery of enterprise device simply, actively, safely and efficiently.
- (10) The thermal efficiency improves effectively when the present invention is applied to the lower end of the gas-steam combined cycle.
- (11) When the present invention is applied to the coal-fired thermal system, it can maintain the original advantages of the traditional steam power cycle in which water vapor is used as working medium and has a wide range of working parameters. According to the actual situation, the present invention can work in subcritical, critical, supercritical or ultra supercritical state, etc.
Claims (11)
1. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) has a vapor channel connected the high-temperature heat exchanger (6), a compressor (3) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected an expander (1), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively has a vapor channel connected the that the expander (1) has a low-pressure vapor channel connected the evaporator (8), the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside if necessary, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and transmit power if necessary.
2. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) and a compressor (3) have a vapor channel which passes through a high-temperature regenerator (9) and connects the high-temperature heat exchanger (6) respectively, the high-temperature heat exchanger (6) has a vapor channel connected an expander (1), the expander (1) has a low-pressure vapor channel connected the high-temperature regenerator (9), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively has a vapor channel connected the that the high-temperature regenerator (9) has a low-pressure vapor channel connected the evaporator (8), the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside if necessary, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and transmit power if necessary.
3. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the fourth expander; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) and a compressor (3) have a vapor channel connects the high-temperature heat exchanger (6) respectively, the high-temperature heat exchanger (6) has a vapor channel which passes through a intermediate vapor inlet channel and connects the fourth expander (10), the fourth expander (10) has a intermediate low-pressure vapor channel connected the evaporator (8), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), the expander (1) has a low-pressure vapor channel connected the evaporator (8), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively, the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside if necessary, the expander (1), the second expander (2), the third expander (4) and the fourth expander (10) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2), the third expander (4) and the fourth expander (10) connect the compressor (3) and the pump (5) and transmit power if necessary,
4. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the second high-temperature heat exchanger; wherein an evaporator (8) has a vapor channel which passes through the second high-temperature heat exchanger (11) and connects the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) has a vapor channel connected the high-temperature heat exchanger (6), a compressor (3) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), the expander (1) has a low-pressure vapor channel connected the evaporator (8), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively, the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (11) have the heat source medium channel connected the outside respectively, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside if necessary, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and transmit power if necessary.
5. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) has a vapor channel connected the high-temperature heat exchanger (6), the compressor (3) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), the expander (1) has a low-pressure vapor channel and connects the heating unit (12), the heating unit (12) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively, the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside, the heating unit (12) has the heated medium channel connected the outside, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and transmit power if necessary.
6. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) has a vapor channel connected the high-temperature heat exchanger (6), a compressor (3) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), the evaporator (8) has a low-pressure vapor channel connected the heating unit (12) has a vapor channel connected the that the expander (1) has a low-pressure vapor channel connected the evaporator (8), the heating unit (12) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively, the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside, the heating unit (12) has the heated medium channel connected the outside, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and transmit power if necessary.
7. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second compressor; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) has a vapor channel connected the high-temperature heat exchanger (6), a compressor (3) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the second compressor (13), the second compressor (13) has a vapor channel which passes through the second high-temperature heat exchanger (11) and connects the expander (1), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively has a vapor channel connected the that the expander (1) has a low-pressure vapor channel connected the evaporator (8), the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (11) have the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, the evaporator (8) has the heat source medium channel connected the outside, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the second compressor (13) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and the second compressor (13) and transmit power if necessary.
8. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the fourth expander and the second high-temperature heat exchanger; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) has a vapor channel connected the high-temperature heat exchanger (6), the compressor (3) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the fourth expander (10), the fourth expander (10) has a vapor channel which passes through the second high-temperature heat exchanger (11) and connects the expander (1), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively has a vapor channel connected the that the expander (1) has a low-pressure vapor channel connected the evaporator (8), the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (11) have the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, or the evaporator (8) also has the heat source medium channel connected the outside, the expander (1), the second expander (2), the third expander (4) and the fourth expander (10) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2), the third expander (4), and the fourth expander (10) connect the compressor (3) and the pump (5) and transmit power if necessary.
9. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second compressor; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) and a compressor (3) have a vapor channel which passes through a high-temperature regenerator (9) and connects the high-temperature heat exchanger (6) respectively, the high-temperature heat exchanger (6) has a vapor channel connected the second compressor (13), the second compressor (13) has a vapor channel which passes through the second high-temperature heat exchanger (11) and connects the expander (1), the expander (1) has a low-pressure vapor channel connected the high-temperature regenerator (9), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively has a vapor channel connected the that the high-temperature regenerator (9) has a low-pressure vapor channel connected the evaporator (8), the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (11) have the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, or the evaporator (8) has the heat source medium channel connected the outside, the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the second compressor (13) and transmit power, wherein the expander (1), the second expander (2) and the third expander (4) connect the compressor (3) and the pump (5) and the second compressor (13) and transmit power if necessary.
10. A combined cycle power device comprising an expander, the second expander, a compressor, the third expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the fourth expander and the second high-temperature heat exchanger; wherein an evaporator (8) has a vapor channel connected the second expander (2) has a vapor channel connected the that a condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8), the second expander (2) and a compressor (3) have a vapor channel which passes through a high-temperature regenerator (9) and connects the high-temperature heat exchanger (6) respectively, the high-temperature heat exchanger (6) has a vapor channel connected the fourth expander (10), the fourth expander (10) has a vapor channel which passes through the second high-temperature heat exchanger (11) and connects the expander (1), the expander (1) has a low-pressure vapor channel connected the high-temperature regenerator (9), the evaporator (8) has a low-pressure vapor channel connected the compressor (3) and the third expander (4) respectively has a vapor channel connected the that the high-temperature regenerator (9) has a low-pressure vapor channel connected the evaporator (8), the third expander (4) has a low-pressure vapor channel connected the condenser (7); wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (11) have the heat source medium channel connected the outside, the condenser (7) has the cooling medium channel connected the outside, or the evaporator (8) also has the heat source medium channel connected the outside, the expander (1), the second expander (2), the third expander (4) and the fourth expander (10) connect the compressor (3) and transmit power, wherein the expander (1), the second expander (2), the third expander (4) and the fourth expander (10) connect the compressor (3) and the pump (5) and the second compressor (13) and transmit power if necessary.
11. The device according to any one of claim 1 -10 , wherein adding a low-temperature regenerator and the second pump, adjusting that the condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects the evaporator (8) to that the condenser (7) has a liquid refrigerant pipe which passes through a pump (5) and connects a low-temperature regenerator (14), the compressor (3) adds the vapor extraction channel connected the low-temperature regenerator (14), the low-temperature regenerator (14) has a liquid refrigerant pipe which passes through the second pump (15) and connects the evaporator (8), a combined cycle power device is formed.
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CN111677563A (en) | 2020-09-18 |
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