WO2012132825A1 - 定置用内燃機関の吸気冷却装置 - Google Patents
定置用内燃機関の吸気冷却装置 Download PDFInfo
- Publication number
- WO2012132825A1 WO2012132825A1 PCT/JP2012/056022 JP2012056022W WO2012132825A1 WO 2012132825 A1 WO2012132825 A1 WO 2012132825A1 JP 2012056022 W JP2012056022 W JP 2012056022W WO 2012132825 A1 WO2012132825 A1 WO 2012132825A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- intake air
- cooling water
- cooling
- cooler
- air cooler
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 238000002485 combustion reaction Methods 0.000 title claims description 49
- 239000000498 cooling water Substances 0.000 claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims description 68
- 239000010687 lubricating oil Substances 0.000 claims description 29
- 230000000717 retained effect Effects 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
- F01P9/06—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 by use of refrigerating apparatus, e.g. of compressor or absorber type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0412—Multiple heat exchangers arranged in parallel or in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0437—Liquid cooled heat exchangers
- F02B29/0443—Layout of the coolant or refrigerant circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/02—Intercooler
-
- 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 water-saving intake air cooling device that is suitable for a stationary internal combustion engine and is installed in an area where water is not abundant and the outside air temperature is high.
- the intake air supplied to the combustion chamber formed in the cylinder of the internal combustion engine is once cooled by a cooler before being supplied to the combustion chamber in order to improve the charging efficiency.
- a cooler since the intake air pressurized by the compressor of the supercharger normally rises to 100 to 200 ° C., it is cooled by providing a heat exchanger at the outlet side intake passage of the compressor. is doing. The heat taken from the intake air by the heat exchanger was radiated to the atmosphere by a radiator or the like.
- Patent Document 1 discloses an intake air cooling device for an internal combustion engine provided with an absorption refrigerator that supplies a low-temperature refrigerant to a cooler that cools intake air.
- this apparatus will be described with reference to FIG. 3 (FIG. 2 of Patent Document 1).
- an exhaust pipe 102 and an intake pipe 104 are connected to the diesel engine 100.
- the exhaust pipe 102 is connected to an exhaust path 106 for releasing the exhaust gas of the diesel engine 100 to the outside
- the intake pipe 104 is connected to an intake path 108 for introducing outside air.
- a supercharger 110 is provided across the exhaust pipe 102 and the intake pipe 104.
- an exhaust turbine 112 provided in the exhaust pipe 102 and a compressor 114 provided in the intake pipe 104 are integrally formed via a shaft 116.
- a heat exchanger 118 is interposed in the intake pipe 104.
- a pipe line 120 is installed between the heat exchanger 118 and the absorption refrigerator 122. The pipe line 120 is led to a heat exchanger 124 of an evaporator constituting the absorption refrigerator 122. Cooling water is supplied from the absorption chiller 122 to the heat exchanger 118 via the pipe line 120.
- the exhaust path 106 and the generator heat exchanger 126 constituting the absorption refrigerator 122 are connected by a pipe 128.
- An exhaust heat exchanger 130 connected to the pipe line 128 is provided in the exhaust path 106.
- the heat energy recovered from the exhaust gas e flowing through the exhaust passage 106 by the exhaust heat exchanger 130 is sent to the generator heat exchanger 126 through the pipe 128 using steam as a medium.
- the absorption refrigerator 122 is operated by this heat energy and cooling water sent from a cooling tower or the like.
- the cooling water flowing through the heat exchanger 124 in the evaporator is cooled by the operation of the absorption refrigerator 122.
- the cooling water cooled by the heat exchanger 124 is sent to the air cooler 118 and cools the intake air a flowing through the intake pipe 104.
- FIG. 3 of Patent Document 1 discloses an example in which the retained heat of the cooling water after cooling the diesel engine 100 is used as a heat source of the absorption chiller.
- a cooling tower is provided together with an absorption refrigerator, and the cooling water supplied to the evaporator and the absorber is cooled by using the latent heat of water evaporation in the cooling tower. Therefore, a large amount of water is required in the cooling tower. Further, in a region where the outside air temperature is high, such as a tropical region, when high temperature outside air is used as the intake air, the intake air pressurized by the supercharger rises to a high temperature. Therefore, a means for cooling the hot intake air with high efficiency is required. Therefore, it is difficult to obtain a sufficient output even if a stationary internal combustion engine is installed in a region where water is not abundant or a region where the temperature is high such as a tropical region.
- the present invention consumes less water even when a stationary internal combustion engine is installed in an area where water is not abundant and water tends to be insufficient, or where the outside air temperature is high.
- the purpose is to realize a water-saving intake air cooling device that can reduce the intake air temperature with high efficiency.
- an intake air cooling apparatus for a stationary internal combustion engine is an intake air cooling apparatus for a stationary internal combustion engine having a supercharger in an intake passage and an exhaust passage.
- a first intake air cooler that is provided in the upstream intake passage and primarily cools the intake air; a second intake air cooler that secondarily cools the compressor outlet-side intake air that has been pressurized and heated by the compressor; and a stationary internal combustion engine
- An absorption refrigerator that supplies the first intake air cooler and the second intake air cooler with cooling water for intake air cooling using the retained heat of the exhaust gas of the engine as a heat source, and cools the cooling water by exchanging heat with the outside air.
- a heat exchanger that supplies the cooling water to the absorption chiller as a cooling heat source, and cools the intake air supplied to the combustion chamber of the stationary internal combustion engine by the first intake air cooler and the second intake air cooler. It is comprised so that it may do.
- the outside air introduced into the intake passage is firstly cooled by the first intake cooler upstream of the supercharger. Therefore, even a considerably high temperature outside air, for example, outside air having a temperature around 50 ° C., can be cooled and introduced into the supercharger.
- a considerably high temperature outside air for example, outside air having a temperature around 50 ° C.
- the intake air pressurized by the compressor constituting the supercharger and heated to a high temperature is cooled by the second intake air cooler on the downstream side of the supercharger, it is supplied to the combustion chamber of the stationary gas engine.
- the cooling water for cooling the intake air of the first intake air cooler and the second intake air cooler is cooled by an absorption refrigerator.
- an absorption chiller with low power consumption is used, and the heat source supplied to the absorption chiller is covered with the heat stored in the exhaust gas. Because it is able to cover, no extra heat source is required. Therefore, energy saving and cooling efficiency can be improved.
- the heat exchanger that cools the cooling water that is the cooling heat source of the absorption chiller uses outside air as the cooling heat source and does not require water. Therefore, it will not cause any trouble even in areas where water is scarce. Therefore, according to the device of the present invention, the intake air cooling device can be operated with energy saving and high efficiency even in an area where water is not abundant and the outside air temperature is high.
- the second intake air cooler further cools the high-temperature side intake air cooler that cools the high-temperature intake air pressurized by the supercharger and the intake air cooled by the high-temperature side intake air cooler.
- the low-temperature side intake air cooler is provided with a second heat exchanger for supplying cooling water that is cooled by exchanging heat with the outside air, and is absorbed by the low-temperature side intake air cooler.
- the cooling water is supplied from the refrigerating machine, and the cooling water after being subjected to the intake air cooling by the high temperature side intake air cooler is returned to the second heat exchanger via the cooling water jacket of the stationary internal combustion engine. Good.
- the cooling water cooled by the absorption chiller is supplied to the low temperature side intake air cooler, and the cooling water cooled by the second heat exchanger is supplied to the high temperature side intake air cooler, thereby sharing the cooling target. Therefore, even an absorption chiller having a cooling capacity smaller than that of a vapor compression chiller or the like can sufficiently cope with it. Further, since the high-temperature side intake cooler exchanges heat with the high-temperature intake air on the downstream side of the compressor, it does not require much low-temperature cooling water. Therefore, the second heat exchanger that uses the outside air as a cold heat source can sufficiently cope. Furthermore, since the second heat exchanger uses outside air as a cold heat source, it does not require water and can operate even in an area where water is insufficient.
- the apparatus of the present invention comprises an exhaust gas boiler provided in an exhaust path of a stationary internal combustion engine, and a steam supply path for supplying at least a part of the steam obtained by the exhaust gas boiler to an absorption refrigeration machine. It is good to supply as a heat source of a refrigerator. As a result, the retained heat of the exhaust gas can be efficiently recovered and used as a heat source for the absorption refrigerator. Further, the remainder of the water vapor can be used as a heat source for other equipment.
- a cooling water circulation path for circulating cooling water between the second intake air cooler or the low temperature side intake air cooler and the absorption chiller, and a forward path and a return path of the cooling water circulation path are connected.
- the cooling water discharged from the second intake air cooler or the low-temperature side intake air cooler is exchanged with the intake air that has been pressurized by the supercharger and becomes high temperature, and the second intake air cooling is performed without passing through the absorption refrigerator.
- Bypass passage for returning to the cooler or the low-temperature side intake air cooler, a valve mechanism for changing the flow rate of the cooling water flowing through the bypass passage, an absorption refrigerator that controls the valve mechanism, and that depends on the load of the stationary internal combustion engine And a controller for controlling the amount of cooling water supplied to. Accordingly, the controller can control the temperature and flow rate of the cooling water supplied to the second intake air cooler or the low temperature side intake air cooler according to the load of the stationary internal combustion engine.
- a temperature sensor for detecting the temperature of the cooling water supplied from the absorption chiller to the second intake air cooler or the low temperature side intake air cooler, and the detected value of the temperature sensor to be a target value.
- a controller for controlling the operation of the absorption refrigerator.
- a third heat exchanger for exchanging heat between the lubricating oil circulating in the lubricating oil space formed in the housing of the stationary internal combustion engine and the outside air and cooling the lubricating oil, and the lubricating oil space And a lubricating oil circuit that leads the lubricating oil to the third heat exchanger.
- the lubricating oil circulating through each part in the housing can be cooled by the third heat exchanger.
- the third heat exchanger does not use water as a cold heat source, it can be operated even in an area where water is insufficient.
- the intake air is primarily cooled by being provided in an upstream intake passage of a compressor constituting the supercharger.
- a first intake air cooler, a second intake air cooler that secondary-cools the compressor outlet side intake air that has been pressurized and heated by the compressor, and the heat retained in the exhaust gas of the stationary internal combustion engine is used as a heat source
- An absorption chiller for supplying intake cooling water to the intake air cooler and the second intake air cooler, cooling the cooling water by exchanging heat with outside air, and using the cooling water as a cooling heat source for the absorption chiller
- a heat exchanger to be supplied, and the intake air supplied to the combustion chamber of the stationary internal combustion engine is cooled by the first intake air cooler and the second intake air cooler.
- FIG. 1 is an overall configuration diagram of an embodiment in which the present invention is applied to a stationary gas engine. It is a flowchart which shows the operation
- a housing 12 of a stationary gas engine 10 includes a combustion chamber 13 formed in a plurality of cylinders, a lubricating oil circulation path 14 for supplying lubricating oil to each part in the housing 12, A cooling water jacket 16 is provided for cooling each of these parts with cooling water.
- the combustion chamber 13, the lubricating oil circulation path 14, and the cooling water jacket 16 are schematically shown in FIG.
- the stationary gas engine 10 is connected to the generator 20 via a flywheel.
- the intake system of the stationary gas engine 10 includes a primary intake air cooler 22 that primarily cools the taken-in outside air a.
- a compressor 26 a constituting the supercharger 26 is provided in the downstream intake passage 24 of the primary intake cooler 22.
- a high temperature side intake cooler 28 and a low temperature side intake cooler 30 are interposed in the intake passage 24 downstream of the compressor 26a.
- the intake air s pressurized and heated by the compressor 26 a is secondarily cooled by the high temperature side intake cooler 28 and then thirdly cooled by the low temperature side intake air cooler 30, and then entered into the combustion chamber 13 of the stationary gas engine 10. Supplied.
- the exhaust gas e exhausted from the combustion chamber 13 of the stationary gas engine 10 to the exhaust passage 32 drives an exhaust turbine 26b provided in the exhaust passage 32.
- the exhaust turbine 26b and the compressor 26a are connected by a shaft 26c, and the compressor 26a and the exhaust turbine 26b constitute a supercharger 26.
- An exhaust heat boiler 34 is provided in the downstream exhaust passage 32 of the exhaust turbine 26b. Raw water w is supplied to the exhaust heat boiler 34, and steam is produced by the retained heat of the exhaust gas e.
- the steam produced by the exhaust heat boiler 34 is supplied as a heat source to a generator (not shown) of an absorption chiller 50 described later via pipes 36 and 38.
- a part of the water vapor is supplied to other devices as a heat source through the pipe 40 branched from the pipe 36.
- a three-way valve 42 is provided at a branch portion of the pipe lines 36 and 40, and the three-way valve 42 enables water vapor to be distributed to the pipe lines 38 or 40.
- a cooling water circulation path 46 for circulating cooling water to the cooling water jacket 16, the high temperature side intake cooler 28, and the second radiator 44 is provided.
- the second radiator 44 includes a mechanism for taking in the outside air a such as a fan, and a heat exchanging section for exchanging heat between the outside air a and the cooling water, and has a function of cooling the cooling water with the outside air a.
- the cooling water cooled by the second radiator 44 is circulated through the cooling water circulation path 46 in the direction of the arrow by the pump 48.
- the intake air s is cooled by the high temperature side intake air cooler 28 with this cooling water.
- the cooling water used for cooling the intake air s by the high-temperature side intake cooler 28 is then sent to the cooling water jacket 16 to cool each part in the housing 12.
- the 1st radiator 52 which supplies the cooling water used as the cold heat source of the absorption refrigerator 50 with the absorption refrigerator 50 is provided.
- the first radiator 52 has the same configuration as the second radiator 44. That is, an outside air intake mechanism and a heat exchanging part that exchanges heat between the outside air a and the cooling water are provided, and has a function of cooling the cooling water with the outside air a.
- the first radiator 52 and the absorption chiller 50 are connected by cooling water circulation paths 54a and 54b, and a cooling water is connected between the first radiator 52 and the absorption chiller 50 by a pump 56 interposed in the cooling water circulation path 54a. Circulates.
- the absorption chiller 50 is supplied with water vapor as a heat source via the pipes 36 and 38, and from the first radiator 52 to the condenser and the absorber (not shown) as a cold heat source. Cooling water is supplied.
- the absorption refrigerator 50 and the low-temperature side intake cooler 30 are connected via cooling water circulation paths 58a and 58b.
- the cooling water cooled by the absorption chiller 50 is circulated through the cooling water circulation paths 58a and 58b by the pump 60 interposed in the cooling water circulation path 58a, and the intake air s is cooled by the low temperature side intake cooler 30.
- a cooling water circulation path 74a for supplying cooling water to the primary intake air cooler 22 is connected to the cooling water circulation path 58a.
- Lubricating oil circulation passages 70 a and 70 b that communicate with the lubricating oil circulation space 14 and lead out the lubricating oil to the outside of the housing 12 are provided.
- the lubricating oil circulation passages 70 a and 70 b are provided outside the housing 12 and are connected to the third radiator 72. It is connected to the.
- the third radiator 72 has the same configuration as the first radiator 52 and the second radiator 44, and has an outside air intake mechanism and a heat exchange unit.
- the third radiator 72 has a function of taking outside air a, exchanging heat between the taken outside air a and the lubricating oil, and cooling the lubricating oil.
- a bypass path 62 is provided on the absorption chiller 50 side from the connection of the cooling water circulation paths 74a and 74b.
- a three-way valve 64 is provided at a branch portion between the cooling water circulation path 58 a and the bypass path 62.
- the cooling water circulation path 58a is provided with a temperature sensor 66 for detecting the cooling water temperature.
- a controller 68 that controls the operation of the absorption chiller 50 is provided. The controller 68 inputs the detection value of the temperature sensor 66 and controls the operation of the absorption refrigerator 50 based on the detection value.
- the controller 68 controls the flow rate of water vapor supplied to the absorption chiller 50 by controlling the opening degree of the three-way valve 42. Furthermore, the distribution amount of the cooling water distributed to the cooling water circulation path 58 a and the bypass path 62 is controlled by controlling the opening degree of the three-way valve 64 according to the load of the stationary gas engine 10.
- the flow rate and temperature of the cooling water supplied to the low temperature side intake air cooler 30 are made constant by controlling the opening degree of the three-way valve 64 by the controller 68 and controlling the amount of cooling water that bypasses the absorption chiller 50. I try to control it.
- the controller 68 controls the operation of the absorption chiller 50 based on the detection value of the temperature sensor 66, and controls the three-way valves 42 and 64 according to the load of the stationary gas engine 10.
- the cooling water temperature and the flow rate supplied to the primary intake air cooler 22 and the low temperature side intake air cooler 30 can be kept constant.
- set temperatures such as outside air a, intake air s, exhaust gas e, and cooling water are appended to each part.
- the temperature of the outside air a is set to 50 ° C.
- the exhaust gas e exhausted from the combustion chamber 13 of the stationary gas engine 10 is introduced into the exhaust heat boiler 34.
- steam is produced with the retained heat of the exhaust gas e.
- This water vapor is supplied to the absorption refrigerator 50 as a heat source via the pipes 36 and 38.
- the absorption refrigerator 50 is supplied with cooling water as a cooling heat source from the first radiator 52, and is operated by these heat sources and the cooling heat source. Cooling water at 32 ° C. is produced by the absorption chiller 50, and this cooling water is sent to the primary intake air cooler 22 and the low-temperature side intake air cooler 30. Cool down.
- the cooling water cooled by the second radiator 44 is sent to the cooling water jacket 16 on the downstream side of the high temperature side intake air cooler 28 to cool each part in the housing 12. Further, the lubricating oil in the housing 12 is sent from the lubricating oil circulation space 14 to the third radiator 72 via the lubricating oil circulation path 70a and cooled. The lubricating oil cooled by the third radiator 72 is returned to the lubricating oil circulation space 14 via the lubricating oil circulation path 70b.
- the control is terminated (S18).
- the controller 68 controls the operation of the absorption chiller 50 (S20) so that the detected value is within the set range.
- the outside air a introduced into the intake passage 24 is cooled in three stages in the upstream and downstream intake passages 24 of the supercharger 26, the outside air a having a temperature of 50 ° C. Even so, it can be supplied to the combustion chamber 13 of the stationary gas engine 10 at a set temperature of 40 ° C. Further, the primary intake air cooler 22 and the low temperature side intake air cooler 30 into which the low-temperature intake air s is introduced have low power consumption, absorption refrigeration using the retained heat of the exhaust gas e as a heat source and the outside air as a cold heat source. Since the cooling water produced by the machine 50 is supplied, a special heat source is not required, and energy-saving and highly efficient cooling efficiency can be achieved.
- the intake air cooling device can operate with high efficiency even in a tropical dry area where water is not abundant and is scarce and the outside air temperature is high.
- the second radiator 44 using the outside air a as a cold heat source can sufficiently cope with it.
- the absorption refrigeration has a cooling capacity smaller than that of the vapor compression chiller. The machine can also handle it.
- the exhaust heat boiler 34 is provided in the exhaust passage 32, steam is produced with the retained heat of the exhaust gas e, and this steam is used as the heat source of the absorption chiller 50, the retained heat of the exhaust gas e is efficiently used. Can be recovered. The remainder of the water vapor can also be used as a heat source for other equipment.
- a three-way valve 42 is provided in the pipeline 36, and a bypass passage 62 and a three-way valve 64 are provided in the cooling water circulation paths 58a and 58b. Therefore, the temperature of the cooling water supplied to the primary intake air cooler 22 and the low-temperature side intake air cooler 30 can be controlled according to the load of the stationary gas engine 10.
- a temperature sensor 66 for detecting the temperature of the cooling water is provided in the cooling water circulation path 58a, and the controller 68 uses the absorption value of the cooling water so that the temperature of the cooling water becomes the target temperature based on the detection value of the temperature sensor 66 Since the operation of 50 is controlled, the temperature of the cooling water supplied to the primary intake air cooler 22 and the low temperature side intake air cooler 30 can be accurately controlled to the target value. Further, the temperature of the lubricating oil that lubricates the inside of the housing 12 can be cooled by the third radiator 72 that does not use water.
- the stationary gas engine 10 is connected to the generator 20 via the flywheel.
- a pump or a compressor is connected to drive these devices. May be.
- the present invention can also be applied to stationary internal combustion engines other than stationary gas engines.
- an intake air cooling device for a stationary internal combustion engine that is suitable for a high-temperature region where energy saving and cooling efficiency are high and water is not abundant.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Supercharger (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
なお、特許文献1の図3には、ディーゼル機関100を冷却した後の冷却水の保有熱を、吸収式冷凍機の熱源として利用するようにした例が開示されている。
また、高温側吸気冷却器は、コンプレッサ下流側の高温吸気との熱交換であるので、さほど低温の冷却水を必要としない。そのため、外気を冷熱源とする第2の熱交換器でも、十分対応できる。さらに、第2の熱交換器は、外気を冷熱源としているので、水を必要とせず、水が不足した地域でも稼動できる。
図1中、各部位に、外気a、吸気s、排気ガスe、冷却水等の設定温度が付記されている。本実施形態は、外気aの温度を50℃と設定した例である。
また、ハウジング12の内部を潤滑する潤滑油の温度を水を用いない第3ラジエータ72で冷却できる。
Claims (6)
- 吸気路及び排気路に過給機を備えた定置用内燃機関の吸気冷却装置において、
前記過給機を構成するコンプレッサの上流側吸気路に設けられ、吸気を一次冷却する第1の吸気冷却器と、
該コンプレッサで加圧され昇温したコンプレッサ出口側吸気を二次冷却する第2の吸気冷却器と、
定置用内燃機関の排気ガスの保有熱を熱源とし、前記第1の吸気冷却器及び第2の吸気冷却器に吸気冷却用冷却水を供給する吸収式冷凍機と、
冷却水を外気と熱交換させて冷却し、該冷却水を前記吸収式冷凍機に冷熱源として供給する熱交換器と、を備え、
定置用内燃機関の燃焼室に供給する吸気を前記第1の吸気冷却器及び第2の吸気冷却器で冷却するように構成したことを特徴とする定置用内燃機関の吸気冷却装置。 - 前記第2の吸気冷却器は、前記過給機で加圧された高温の吸気を冷却する高温側吸気冷却器と、該高温側吸気冷却器で冷却された吸気をさらに冷却してシリンダ内に供給する低温側吸気冷却器とからなり、
前記高温側吸気冷却器に外気と熱交換して冷却された冷却水を供給する第2の熱交換器を備え、
前記低温側吸気冷却器に前記吸収式冷凍機から冷却水を供給すると共に、前記高温側吸気冷却器で吸気冷却に供した後の冷却水を、定置用内燃機関の冷却水ジャケットを経て、前記第2の熱交換器に戻すように構成したことを特徴とする請求項1に記載の定置用内燃機関の吸気冷却装置。 - 定置用内燃機関の排気路に設けられた排ガスボイラと、
該排ガスボイラで得た水蒸気の少なくとも一部を前記吸収式冷凍機に供給する水蒸気供給路とを備え、
該水蒸気を吸収式冷凍機の熱源として供給するようにしたことを特徴とする請求項1又は2に記載の定置用内燃機関の吸気冷却装置。 - 前記第2の吸気冷却器又は前記低温側吸気冷却器と前記吸収式冷凍機との間に冷却水を循環する冷却水循環路と、
該冷却水循環路の往路と復路との間に接続され、過給機で加圧され高温となった吸気と熱交換され第2の吸気冷却器又は低温側吸気冷却器から排出される冷却水を、吸収式冷凍機を経ずに第2の吸気冷却器又は低温側吸気冷却器に戻すバイパス路と、
該バイパス路を流れる冷却水の流量を可変とする弁機構と、
該弁機構を制御し、定置用内燃機関の負荷に応じて吸収式冷凍機に供給される冷却水温度を制御するコントローラと、を備えていることを特徴とする請求項1又は2に記載の定置用内燃機関の吸気冷却装置。 - 前記吸収式冷凍機から前記第2の吸気冷却器又は前記低温側吸気冷却器に供給される冷却水の温度を検出する温度センサと、
該温度センサの検出値が目標値になるように吸収式冷凍機の運転を制御するコントローラと、を備えていることを特徴とする請求項1又は2に記載の定置用内燃機関の吸気冷却装置。 - 定置用内燃機関のハウジング内に形成された潤滑油空間を循環する潤滑油と外気とを熱交換させ、該潤滑油を冷却する第3の熱交換器と、
該潤滑油空間に連通し該潤滑油を該第3の熱交換器に導く潤滑油循環路と、を備えていることを特徴とする請求項1又は2に記載の定置用内燃機関の吸気冷却装置。
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US14/007,007 US9316185B2 (en) | 2011-03-31 | 2012-03-08 | Intake air cooling apparatus for stationary internal combustion engine |
EP12764077.9A EP2693039B1 (en) | 2011-03-31 | 2012-03-08 | Intake cooling device of stationary internal combustion engine |
CN201280014051.9A CN103443438B (zh) | 2011-03-31 | 2012-03-08 | 固定用内燃机的吸气冷却装置 |
KR1020137025126A KR101518159B1 (ko) | 2011-03-31 | 2012-03-08 | 정치용 내연 기관의 흡기 냉각 장치 |
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JP5993759B2 (ja) * | 2013-02-27 | 2016-09-14 | カルソニックカンセイ株式会社 | エンジンの吸気冷却装置 |
JP2014169681A (ja) * | 2013-03-05 | 2014-09-18 | Yanmar Co Ltd | エンジン |
JP6327199B2 (ja) * | 2015-05-07 | 2018-05-23 | 株式会社デンソー | 内燃機関の低水温冷却装置 |
JP6642321B2 (ja) * | 2016-07-21 | 2020-02-05 | 株式会社豊田自動織機 | エンジン |
JP6760879B2 (ja) * | 2017-03-30 | 2020-09-23 | 東邦瓦斯株式会社 | ガスエンジン及びガスエンジンの運転方法 |
DE102018118179A1 (de) * | 2018-07-27 | 2020-01-30 | Fahrenheit Gmbh | Brennkraftmaschine mit Ladelufttemperierung mittels einer Sorptionsvorrichtung |
WO2020211916A2 (fr) * | 2019-04-18 | 2020-10-22 | Touil Salah Eddine | Système de gestion de la température d'air d'admission par absorption de chaleur par un compresseur pour moteur à combustion interne suralimenté |
DE102019206450B4 (de) * | 2019-05-06 | 2021-03-04 | Ford Global Technologies, Llc | Motorsystem |
WO2021064980A1 (ja) * | 2019-10-04 | 2021-04-08 | 株式会社Ihi原動機 | 冷却システム |
JP2021076073A (ja) * | 2019-11-11 | 2021-05-20 | 川崎重工業株式会社 | ガスエンジンシステム |
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CN103443438A (zh) | 2013-12-11 |
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JP5325254B2 (ja) | 2013-10-23 |
EP2693039B1 (en) | 2016-04-27 |
CN103443438B (zh) | 2015-12-09 |
KR101518159B1 (ko) | 2015-05-06 |
JP2012211545A (ja) | 2012-11-01 |
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US9316185B2 (en) | 2016-04-19 |
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