WO2016129451A1 - 熱交換器、エネルギー回収装置、および船舶 - Google Patents
熱交換器、エネルギー回収装置、および船舶 Download PDFInfo
- Publication number
- WO2016129451A1 WO2016129451A1 PCT/JP2016/053024 JP2016053024W WO2016129451A1 WO 2016129451 A1 WO2016129451 A1 WO 2016129451A1 JP 2016053024 W JP2016053024 W JP 2016053024W WO 2016129451 A1 WO2016129451 A1 WO 2016129451A1
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- WIPO (PCT)
- Prior art keywords
- working medium
- heating unit
- heat exchanger
- supercharged air
- pipe
- Prior art date
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- 238000011084 recovery Methods 0.000 title claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 130
- 238000011144 upstream manufacturing Methods 0.000 claims description 20
- 239000007791 liquid phase Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000009835 boiling Methods 0.000 claims description 10
- 239000012071 phase Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 description 11
- 230000002000 scavenging effect Effects 0.000 description 10
- 238000001816 cooling Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004088 simulation Methods 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
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—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 the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
-
- 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
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J3/00—Driving of auxiliaries
- B63J3/02—Driving of auxiliaries from propulsion power plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a heat exchanger mounted on a ship, an energy recovery device including the heat exchanger, and a ship including the energy recovery device.
- Patent Document 1 discloses exhaust heat recovery in which thermal energy of a diesel engine 500 of a ship is recovered and electric power is generated using the recovered thermal energy, as shown in FIG. The system is described. This exhaust heat recovery system heats the organic medium M having a lower boiling point than the air cooling water W by the air cooling water W of the air cooler 600 that cools the compressed air A discharged from the supercharger 510 of the diesel engine 500.
- a first exhaust heat recovery device 700 is provided.
- the air cooling water W recovers the heat of the compressed air A in the air cooler 600, then recovers the heat of the exhaust gas G sent from the supercharger 510 to the chimney 800, and then to the first exhaust heat recovery unit 700.
- the exhaust heat recovery system of Patent Document 1 performs heat exchange between the two heat mediums of the compressed air A and the exhaust gas G and the air cooling water W, and the air cooling water W whose temperature has increased due to the heat exchange.
- the organic medium M is heated. Thereby, the thermal energy of the diesel engine 500 is recovered via the organic medium M.
- thermal energy can be recovered from two heat media, compressed air A and exhaust gas G.
- the thermal energy is recovered in the organic medium M through the air cooling water W having a boiling point higher than that of the organic medium M.
- the thermal energy of the compressed air A and the exhaust gas G is directly recovered by the organic medium M, it is difficult to sufficiently recover the thermal energy.
- the diesel engine 500 may be operated at a low load for the purpose of reducing fuel consumption. In such a case, since the thermal energy of the compressed air A collected by the air cooling water W becomes small, it becomes more difficult to sufficiently collect the thermal energy.
- An object of the present invention is to provide a heat exchanger that solves the above problems, an energy recovery device that includes the heat exchanger, and a ship that includes the energy recovery device.
- a heat exchanger is mounted on a ship including an engine, a supercharger that supplies supercharged air to the engine, and an economizer that recovers exhaust heat of the engine to generate steam.
- a heat exchanger that applies heat of supply air and steam to a working medium used for driving an expander of an energy recovery device, and is generated in the economizer, a first heating unit that heats the working medium with supercharged air Heated in the first heating part by the second heating part for heating the supercharged air before flowing into the first heating part by the steam, and the supercharged air before being heated in the second heating part
- a third heating unit that heats the subsequent working medium.
- FIG. 1 is a schematic configuration diagram of an exhaust heat recovery system described in Patent Document 1.
- FIG. 1 is a schematic configuration diagram of an exhaust heat recovery system described in Patent Document 1.
- the ship Y1 includes an energy recovery device X1, a supercharger 100, an engine 200, and an economizer 300.
- the supercharger 100 includes a compressor 110, a turbine 120, a scavenging line 130, and an exhaust line 140.
- the supercharged air compressed by the compressor 110 is supplied to the engine 200 through the scavenging line 130.
- Exhaust gas generated in the engine 200 is sent to the turbine 120 through the exhaust line 140.
- the turbine 120 is driven by the expansion energy of the exhaust gas, and the compressor 110 is driven by the driving force of the turbine 120.
- the economizer 300 recovers heat from the exhaust gas of the engine 200 and generates water vapor.
- the economizer 300 is shown separately from the exhaust line 140, but in reality, the economizer 300 is provided at a site downstream of the turbine 120 of the exhaust line 140.
- the energy recovery device X1 is a power generation system that uses a Rankine cycle of a working medium.
- an organic fluid having a boiling point lower than that of water is used as the working medium.
- R245fa or the like is used as the working medium.
- the heat exchanger 2, the expander 3, the generator 4, the condenser 5, and the pump 6 are connected in this order by a circulation channel 7.
- the heat exchanger 2 is located on the scavenging line 130. In the heat exchanger 2, the superheated air and the heat of water vapor flowing out from the economizer 300 are given to the working medium.
- the expander 3 is located downstream of the heat exchanger 2 in the flow direction of the working medium.
- a screw expander is used as the expander 3
- the rotor portion which is a screw, is rotationally driven by the expansion energy of the gas phase working medium.
- the expander 3 not only a screw expander but a centrifugal type, a scroll type, etc. may be used.
- the generator 4 is connected to the expander 3.
- the condensing part 5 is located downstream of the expander 3 in the flow direction of the working medium.
- the condensing unit 5 includes a condenser 51 and a storage unit 52.
- the condenser 51 has a working medium flow path 51a through which a working medium flows and a cooling water flow path 51b through which cooling water flows.
- the storage part 52 is located downstream of the condenser 51 in the flow direction of the working medium.
- the storage unit 52 stores a liquid-phase working medium.
- the working medium flow path 51 a and the storage section 52 of the condenser 51 are connected by a connection pipe 53.
- the pump 6 is located between the storage unit 52 and the heat exchanger 2 on the circulation flow path 7.
- the pump 6 supplies the liquid phase working medium stored in the storage unit 52 to the heat exchanger 2.
- a centrifugal pump having an impeller as a rotor, a gear pump having a rotor composed of a pair of gears, or the like is used as the pump 6.
- the liquid phase working medium is heated by supercharged air and steam in the heat exchanger 2 to become superheated steam. Then, the working medium flows into the expander 3 from the heat exchanger, and the expander 3 is driven. The power of the expander 3 is transmitted to the generator 4 to generate electric power.
- the gas phase working medium expanded by the expander 3 flows into the working medium flow path 51 a of the condenser 51.
- the working medium is condensed by exchanging heat with the cooling water flowing through the cooling water flow path 51b.
- the condensed working medium flows into the storage unit 52. Then, the liquid-phase working medium in the reservoir 52 is supplied to the heat exchanger 2 by the pump 6.
- the working medium circulates in the circulation flow path 7, so that electric power is stably generated based on the heat of the supercharged air and water vapor.
- the heat exchanger 2 includes a heat exchanger body 21, a working medium pipe 22 through which a working medium flows, and a steam pipe 23 through which water vapor from the economizer 300 flows.
- the heat exchanger main body 21 accommodates a working medium pipe 22 and a steam pipe 23 in the internal space.
- supercharged air flows through the space outside the working medium pipe 22 and the steam pipe 23 from the supercharger 100 to the engine 200.
- the outer portion of the heat exchanger body 21 is referred to as “supercharged air flow path”.
- the upstream part of the supercharged air flow path is connected to the first scavenging line 131 that is the upstream part of the scavenging line 130, and the downstream part of the supercharged air flow path is the downstream part of the scavenging line 130 Is connected to the second scavenging line 132.
- the working medium pipe 22 has an upstream portion 22a that is an upstream portion in the flow direction of the working medium and a downstream portion 22c that is a downstream portion.
- the upstream part 22a and the downstream part 22c are accommodated in the heat exchanger main body 21, respectively.
- the upstream portion 22a of the working medium pipe 22 is located downstream of the heat exchanger 2 and the downstream portion 22c is located upstream in the flow direction of the supercharged air.
- the steam pipe 23 is accommodated in the heat exchanger main body 21 and is positioned between the upstream portion 22a and the downstream portion 22c.
- first heating part 2A A portion formed by the steam pipe 23 and the supercharger flow path is referred to as a “second heating unit 2B”.
- second heating unit 2B A portion formed by the downstream portion 22c of the working medium pipe 22 and the supercharged air flow path is referred to as a “third heating portion 2C”.
- the working medium flows in the order of the first heating unit 2A and the third heating unit 2C. Flowing. That is, in the heat exchanger 2, the flow of the supercharged air and the flow of the working medium are opposite to each other, so-called counterflow.
- the working medium is heated by the supercharged air
- the second heating unit 2B the supercharged air is heated by the water vapor.
- FIG. 2 is a simulation result of temperature changes of the supercharged air and the working medium passing through the heat exchanger 2.
- the section Z1 shown in FIG. 2 corresponds to the heating section of the working medium in the first heating section 2A
- the section Z2 corresponds to the heating section of the supercharged air in the second heating section 2B
- the section Z3 corresponds to the heating section of the working medium in the third heating unit 2C.
- a liquid-phase working medium flows into the first heating unit 2A and is heated by the supercharged air after passing through the second heating unit 2B in the first heating unit 2A.
- the working medium has a boiling point of 122.1 ° C. As a result, the liquid-phase working medium becomes steam.
- the gas phase working medium flowing out from the first heating unit 2A flows into the third heating unit 2C, and flows into the heat exchanger main body 21 from the first scavenging line 131 in the third heating unit 2C. It is further heated by the supercharged air immediately after. That is, in the third heating unit 2C, the working medium after being heated in the first heating unit 2A is further heated by the supercharged air before being heated in the second heating unit 2B. As a result, the working medium becomes superheated steam and flows out from the third heating unit 2C.
- the temperature of the working medium is constant in the section Z3, but actually, the temperature of the gas-phase working medium rises in the third heating unit 2C.
- the supercharged air flows from the compressor 110 of FIG. 1 into the third heating unit 2C and heat-exchanges with the working medium, so that the temperature gradually decreases in the zone Z3. . Thereafter, the supercharged air flows into the second heating unit 2B and is heated by the water vapor flowing through the steam pipe 23. That is, in the second heating unit 2B, the supercharged air before flowing into the first heating unit 2A is heated by water vapor. As a result, the temperature of the supercharged air rises to a temperature sufficiently higher than the boiling point of the working medium in the zone Z2. The water vapor after heat exchange condenses and flows out of the heat exchanger main body 21.
- the temperature of the supercharged air whose amount of heat has been recovered is lowered again by exchanging heat with the liquid-phase working medium in the first heating unit 2A. And as shown in FIG. 1, the supercharged air which became low temperature goes to the engine 200 from the 1st heating part 2A.
- a cooling facility for cooling the supercharged air becomes unnecessary, or it is not necessary to provide a cooling facility having high cooling performance. Thereby, the electric power required for the operation of the cooling facility is reduced.
- the structure and operation of the energy recovery device X1 mounted on the ship Y1 have been described above.
- the supercharged air whose temperature has been lowered by heating the working medium in the third heating unit 2C is heated by the water vapor generated by the economizer 300 in the second heating unit 2B. .
- the supercharged air can sufficiently heat the liquid-phase working medium in the first heating unit 2A.
- the engine 200 of the ship Y1 when the engine 200 of the ship Y1 is operated at a low load, specifically, a load of 40% to 60% (more preferably, a load of 45% to 50%), compared to a high load. Even if the temperature of the supercharged air sent from the compressor 110 to the engine 200 decreases, the heat energy necessary for driving the energy recovery device X1 is ensured by heating the supercharged air with the steam.
- the energy recovery device X1 is a power generation system that uses a Rankine cycle of a low-boiling organic fluid, it is possible to more efficiently recover the heat of the steam generated by the supercharged air and the economizer.
- the first to third heating units 2A to 2C are integrally formed in the heat exchanger main body 21, whereby the heat exchanger 2 can be reduced in size.
- the working medium and the supercharged air are counterflowed in the first heating unit 2A and the third heating unit 2C, thereby increasing the thermal energy recovery efficiency of the supercharged air in the energy recovery device X1.
- the 3 includes a heat exchanger body 21, a supercharged air pipe 24 through which supercharged air flows, and a steam pipe 23 through which water vapor flowing out from the economizer 300 flows.
- the supercharged air pipe 24 and the steam pipe 23 are accommodated in the heat exchanger main body 21.
- the working medium flows through the space outside the supercharged air pipe 24 and the steam pipe 23.
- the outer space is referred to as a “working medium flow path”.
- the working medium flow path is connected to a part 71 between the expander 3 and the heat exchanger 2 and a part 74 between the pump 6 and the heat exchanger 2 in the circulation flow path 7.
- the supercharged air pipe 24 has an upstream portion 24a which is an upstream portion in the supercharging air flow direction and a downstream portion 24c which is a downstream portion.
- the upstream portion 24a is located on the downstream side in the working medium flow path, and the downstream portion 24c is located on the upstream side in the working medium flow path.
- the upstream portion 24 a is connected to the first scavenging line 131.
- the downstream part 24 c is connected to the second scavenging line 132.
- the steam pipe 23 is located between the upstream part 24a and the downstream part 24c in the heat exchanger main body 21.
- the first heating unit 2A is formed by the downstream portion 24c of the supercharged air pipe 24 and the working medium flow path.
- the second heating unit 2B is formed by the steam pipe 23 and the working medium flow path.
- a third heating unit 2C is formed by the upstream portion 24a of the supercharged air pipe 24 and the working medium flow path.
- the working medium is in the order of the first heating unit 2A, the second heating unit 2B, and the third heating unit 2C.
- Flowing That is, the flow of supercharged air and the flow of working medium are counterflows.
- the liquid phase working medium flows into the first heating unit 2A.
- the working medium is heated by the supercharged air after passing through the third heating unit 2C.
- the liquid-phase working medium (some of which may be in the gas phase) is further heated and vaporized by the steam supplied from the economizer 300 to the steam pipe 23.
- the gas phase working medium is heated by the high-temperature supercharged air immediately after being discharged from the compressor 110 to become superheated steam. That is, in the third heating unit 2C, the working medium heated in the second heating unit 2B is heated by the supercharged air before heat exchange with the working medium in the first heating unit 2A. The working medium that has become superheated steam flows into the expander 3.
- heat exchange is performed between the working gas and the two gas phase heat mediums of supercharged air supplied to the engine 200 and water vapor generated in the economizer 300. For this reason, even when the engine 200 of the ship Y1 is operated at a low load, the energy recovery device X1 can recover sufficient thermal energy.
- the first to third heating units 2A to 2C are integrally formed in the heat exchanger main body 21, whereby the heat exchanger 2 can be reduced in size.
- the storage unit 52 and the connection pipe 53 may be omitted, and the condensing unit 5 may be formed using only the condenser 51. In this case, a portion in which the liquid phase working medium is stored is provided in the condenser 51.
- a plurality of heat exchangers each having the first heating unit 2A, the second heating unit 2B, and the third heating unit 2C may be provided.
- the working medium may flow out from the heat exchanger 2 as saturated steam.
- a rotary machine such as a compressor may be used as a power recovery machine that recovers the power of the expander 3.
- the above heat exchanger is mounted on a ship equipped with an engine, a supercharger that supplies supercharged air to the engine, and an economizer that recovers exhaust heat of the engine and generates steam.
- a heat exchanger for supplying the working medium used for driving the expander of the energy recovery apparatus, the first heating unit for heating the working medium with supercharged air, and the steam generated in the economizer A second heating unit for heating the supercharged air before flowing into the first heating unit; and a working medium after being heated in the first heating unit by the supercharged air before being heated in the second heating unit And a third heating unit that heats.
- the working medium is heated by the superheated air whose temperature has been lowered by heating the working medium in the third heating unit with steam in the second heating unit, and thereby the temperature has been raised. Can be further heated. For this reason, even if it is a case where the engine of a ship carries out low load operation, sufficient thermal energy can be collected in an energy recovery device.
- the heat exchanger includes a working medium pipe through which a working medium flows, a steam pipe through which steam generated by the economizer flows, the working medium pipe and the steam pipe inside, and the working medium pipe and the It is preferable to have a heat exchanger main body formed so that supercharged air flows in a space outside the steam pipe.
- the first heating part is formed by the upstream part and the outer space of the working medium pipe
- the third heating part is formed by the downstream part and the outer space of the working medium pipe
- the steam pipe is formed by the outer space.
- the heat exchanger can be miniaturized by integrally forming the first heating unit, the second heating unit, and the third heating unit in the heat exchanger body.
- the above heat exchanger is mounted on a ship equipped with an engine, a supercharger that supplies supercharged air to the engine, and an economizer that recovers exhaust heat of the engine and generates steam.
- a heat exchanger for supplying the working medium used for driving the expander of the energy recovery apparatus, the first heating unit for heating the working medium with supercharged air, and the steam generated in the economizer A second heating unit for heating the working medium heated in the first heating unit, and an operation after being heated in the second heating unit by the supercharged air before heat exchange with the working medium in the first heating unit
- a third heating unit that heats the medium.
- heat exchanger heat exchange is performed between the two heat mediums of the supercharged air supplied to the engine and the steam generated in the economizer and the working medium.
- sufficient thermal energy can be recovered in the energy recovery device.
- the heat exchanger includes a supercharged air pipe through which supercharged air flows, a steam pipe through which steam generated by the economizer flows, the supercharged air pipe and the steam pipe inside, and the supercharger. It is preferable to have a heat exchanger main body formed so that the working medium flows in a space outside the air pipe and the steam pipe.
- the first heating part is formed by the downstream part of the supercharged air pipe and the outer space
- the third heating part is formed by the upstream part of the supercharged air pipe and the outer space
- the second heating unit is preferably formed by a steam pipe and the outer space.
- the heat exchanger can be miniaturized by integrally forming the first heating unit, the second heating unit, and the third heating unit in the heat exchanger body.
- the third heating unit uses superheated steam as a working medium.
- the energy recovery device includes a working medium that is an organic fluid having a boiling point lower than that of water, a heat exchanger according to the present invention, and a pump that supplies a liquid-phase working medium to the first heating unit of the heat exchanger.
- An expander into which the gas phase working medium that has flowed out of the third heating unit flows, a power recovery device that is connected to the expander and collects power of the expander, and an operation that has flowed out of the expander A condensing unit for condensing the medium.
- the ship includes an energy recovery device according to the present invention, an engine, a supercharger that supplies supercharged air to the engine, and an economizer that recovers exhaust heat of the engine to generate steam.
- the ship includes the energy recovery device according to the present invention, sufficient energy can be recovered in the energy recovery device even when the engine is operated at a low load.
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- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
以下、本発明の第1実施形態について、図面を参照しながら説明する。但し、以下で参照する各図は、説明の便宜上、本実施形態に係る船舶Y1を説明するために必要な主要部材を簡略化して示したものである。したがって、本実施形態に係る船舶Y1は、本明細書が参照する各図に示されていない任意の構成部材を備え得る。
次に、図3を参照しつつエネルギー回収装置X1における熱交換器2の他の構成例について説明する。
Claims (7)
- エンジン、前記エンジンに過給空気を供給する過給機、および前記エンジンの排熱を回収して蒸気を生成するエコノマイザを備えた船舶に搭載され、過給空気及び蒸気の熱をエネルギー回収装置の膨張機の駆動に利用される作動媒体に与える熱交換器であって、
過給空気により作動媒体を加熱する第1加熱部と、
前記エコノマイザにおいて生成された蒸気により前記第1加熱部に流入する前の過給空気を加熱する第2加熱部と、
前記第2加熱部にて加熱される前の過給空気により前記第1加熱部において加熱された後の作動媒体を加熱する第3加熱部と、を備える熱交換器。 - 作動媒体が流れる作動媒体配管と、
前記エコノマイザにて生成された蒸気が流れる蒸気配管と、
前記作動媒体配管および前記蒸気配管を内部に収容するとともに前記作動媒体配管および前記蒸気配管の外側の空間を過給空気が流れるように形成された熱交換器本体と、
を有し、
前記作動媒体配管の上流部および前記外側の空間により前記第1加熱部が形成され、前記作動媒体配管の下流部および前記外側の空間により前記第3加熱部が形成され、前記蒸気配管及び前記外側の空間により前記第2加熱部が形成される、請求項1に記載の熱交換器。 - エンジン、前記エンジンに過給空気を供給する過給機、および前記エンジンの排熱を回収して蒸気を生成するエコノマイザを備えた船舶に搭載され、過給空気及び蒸気の熱をエネルギー回収装置の膨張機の駆動に利用される作動媒体に与える熱交換器であって、
過給空気により作動媒体を加熱する第1加熱部と、
前記エコノマイザにおいて生成された蒸気により前記第1加熱部において加熱された作動媒体を加熱する第2加熱部と、
前記第1加熱部にて作動媒体と熱交換する前の過給空気により前記第2加熱部において加熱された後の作動媒体を加熱する第3加熱部と、を備える熱交換器。 - 過給空気が流れる過給空気配管と、
前記エコノマイザにて生成された蒸気が流れる蒸気配管と、
前記過給空気配管および前記蒸気配管を内部に収容するとともに前記過給空気配管および前記蒸気配管の外側の空間を作動媒体が流れるように形成された熱交換器本体と、
を有し、
前記過給空気配管の下流部および前記外側の空間により前記第1加熱部が形成され、前記過給空気配管の上流部および前記外側の空間により前記第3加熱部が形成され、前記蒸気配管および前記外側の空間により前記第2加熱部が形成される、請求項3に記載の熱交換器。 - 前記第3加熱部が作動媒体を過熱蒸気とする、請求項1~4のいずれか一項に記載の熱交換器。
- 水よりも低沸点の有機流体である作動媒体と、
請求項1~4のいずれか一項に記載の熱交換器と、
前記熱交換器の前記第1加熱部に液相の作動媒体を供給するポンプと、
前記第3加熱部から流出した気相の作動媒体が流入する膨張機と、
前記膨張機に接続されるとともに前記膨張機の動力を回収する動力回収機と、
前記膨張機から流出した作動媒体を凝縮する凝縮部と、
を備えるエネルギー回収装置。 - 請求項6に記載のエネルギー回収装置と、
エンジンと、
前記エンジンに過給空気を供給する過給機と、
前記エンジンの排熱を回収して蒸気を生成するエコノマイザと、を備える船舶。
Priority Applications (5)
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EP16749095.2A EP3258094A4 (en) | 2015-02-13 | 2016-02-02 | Heat exchanger, energy recovery device, and ship |
KR1020177022365A KR101940436B1 (ko) | 2015-02-13 | 2016-02-02 | 열 교환기, 에너지 회수 장치 및 선박 |
CN201680009762.5A CN107208572B (zh) | 2015-02-13 | 2016-02-02 | 换热器、能量回收装置以及船舶 |
US15/549,017 US10408092B2 (en) | 2015-02-13 | 2016-02-02 | Heat exchanger, energy recovery system, and vessel |
KR1020187019810A KR20180083444A (ko) | 2015-02-13 | 2016-02-02 | 열 교환기, 에너지 회수 장치 및 선박 |
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JP2015026648A JP6382127B2 (ja) | 2015-02-13 | 2015-02-13 | 熱交換器、エネルギー回収装置、および船舶 |
JP2015-026648 | 2015-02-13 |
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JP (1) | JP6382127B2 (ja) |
KR (2) | KR20180083444A (ja) |
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JP2018159375A (ja) * | 2017-03-23 | 2018-10-11 | 株式会社神戸製鋼所 | 過給空気冷却ユニット |
KR102027905B1 (ko) * | 2017-12-14 | 2019-10-02 | 삼성중공업 주식회사 | 선박용 열전발전 시스템 |
JP2020183725A (ja) * | 2019-05-08 | 2020-11-12 | 株式会社神戸製鋼所 | 加熱部ユニット、加熱部ユニットの取付方法、加熱部ユニットを備えているバイナリ装置及びバイナリ装置を備えている船舶 |
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EP3258094A1 (en) | 2017-12-20 |
US20180023422A1 (en) | 2018-01-25 |
KR20180083444A (ko) | 2018-07-20 |
EP3258094A4 (en) | 2018-10-03 |
CN107208572A (zh) | 2017-09-26 |
KR101940436B1 (ko) | 2019-01-18 |
CN107208572B (zh) | 2019-05-10 |
KR20170102988A (ko) | 2017-09-12 |
JP2016148314A (ja) | 2016-08-18 |
US10408092B2 (en) | 2019-09-10 |
JP6382127B2 (ja) | 2018-08-29 |
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