CN100434836C - Water cooling type engine heat pump - Google Patents

Water cooling type engine heat pump Download PDF

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Publication number
CN100434836C
CN100434836C CNB2006100598928A CN200610059892A CN100434836C CN 100434836 C CN100434836 C CN 100434836C CN B2006100598928 A CNB2006100598928 A CN B2006100598928A CN 200610059892 A CN200610059892 A CN 200610059892A CN 100434836 C CN100434836 C CN 100434836C
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China
Prior art keywords
temperature
mentioned
valve
low temperature
cooling
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Expired - Fee Related
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CNB2006100598928A
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Chinese (zh)
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CN1840991A (en
Inventor
山本道彦
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Aisin Corp
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Aisin Seiki Co Ltd
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Publication of CN1840991A publication Critical patent/CN1840991A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2327/00—Refrigeration system using an engine for driving a compressor
    • F25B2327/001—Refrigeration system using an engine for driving a compressor of the internal combustion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2501—Bypass valves
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to a water-cooling engine heat pump which can quickly start low-temperature heating, wherein said heat pump comprises: an engine (3), a cooling water circuit (1), a compressor (3), a coolant circuit (4), a waste heat recycler (64) for transmitting the heat of cooling water to the coolant, a stopping device (61) for stopping transmitting coolant to the waste heat recycler (64) pass when the temperature of cooling water is lower than preset value; the cooling water circuit (1) has one divert circuit (15) that passing by the stopping device (61) to transmit cooling water to the waste heat recycler (64); since there is divert circuit (15), event the cooling water has low temperature, the heat of cooling water can be transmitted to coolant; the lower pressure of coolant will not be reduced to improve the rotation speed of engine, and increase the fuel consumption, to improve the heat supply power.

Description

Water cooling type engine heat pump
Technical field
The present invention relates to a kind of water cooling type engine heat pump that uses as the off-premises station of air conditioner etc.
Background technology
The water cooling type engine heat pump that compressor is driven by water-cooled engine has the advantage that the used heat that can utilize engine when heating operation heats refrigerant.Yet if give refrigerant heat too much from cooling water, cooling water will become excessive low temperature, and engine often becomes the supercooling state.Consequently, can produce problems such as the durability reduction of engine, unsettled fired state, the increase of loss horsepower.As the solution at this problem, known have a following document.
No. 2519409 patent gazette of patent documentation 1:JP
In this document, under the engine cooling water temperature cold operation state lower, the thermostat that the heat exchange in the waste heat recoverer is stopped to be set than particular value.
In the waste heat recovery plant in this past, when engine cooling water temperature was lower than particular value, the used heat of engine was not utilized.Therefore the following period of time cooling water temperature that begins from engine start can't reach particular value, and starting low temperature heating so existence does not utilize the heat of cooling water needs time-consuming problem.
Summary of the invention
The present invention is in order to address the above problem, and the heat that cooling water holds, the water cooling type engine heat pump that can quick start low temperature heating are provided when its purpose is to provide from engine start.
Water cooling type engine heat pump of the present invention has water-cooled engine, by this engine-driven compressor that is used to compress refrigerant, the refrigerant heat exchanger, with the waste heat recovery plant that is used for transmitting the heat of this engine to refrigerant, above-mentioned waste heat recovery plant has the chilled(cooling) water return (CWR) that is used to cool off above-mentioned engine, circulation is by the refrigerant loop of the refrigerant of this compressor compresses, be connected on this chilled(cooling) water return (CWR) and this refrigerant loop and the heat of this cooling water is passed waste heat recoverer to this refrigerant, with the temperature of the cooling water that in this chilled(cooling) water return (CWR), circulates than the shut-down mechanism that stops to transmit cooling water under the low cold operation state of particular value to this waste heat recoverer, it is characterized in that above-mentioned chilled(cooling) water return (CWR) has to walk around above-mentioned shut-down mechanism transmits shunting circuit from cooling water to above-mentioned waste heat recoverer.
Owing in water cooling type engine heat pump of the present invention, be provided with shunting circuit, so when the starting of the realization heating equipment of piloting engine, even when cooling water temperature is very low, the heat of cooling water also can be consigned to refrigerant.Therefore, can prevent that refrigerant low pressure (the refrigerant pressure of compressor suction side) from reducing.If ultra-low pressure will occur with high rotating speed rotary compressor system when refrigerant low pressure excessively reduces stops.Must therefore become with slow-speed of revolution rotary compressor for fear of this situation with the minimum speed rotary engine.Work when this refrigerant low pressure excessively reduces is called refrigerant low pressure and avoids.If become the state that refrigerant low pressure is avoided, will be owing to causing the rising of cooling water temperature slack-off with the minimum speed rotary engine.In the present invention, as mentioned above, reduce, do not avoid, can improve engine speed so refrigerant low pressure can not occur owing to can prevent refrigerant low pressure.If improving engine speed will increase the rate of fuel consumption amount, and improve the temperature of cooling water fast.If improving the temperature of cooling water will increase from cooling water and pass to the heat of refrigerant and increase heating capacity.Therefore can be fine starting during realization heating equipment low temperature.
Water cooling type engine heat pump of the present invention has water-cooled engine, engine-driven compressor that is used to compress refrigerant, refrigerant be with heat exchanger be used for transmitting to refrigerant the waste heat recovery plant of the heat of this engine thus.
Water-cooled engine uses water-cooled internal combustion engine, is specially water-cooled Diesel engine, water-cooled petrol engine, water-cooled gas engine etc.When the air pressure of refrigerant is lower than particular value, this internal combustion engine is carried out rotating speed is suppressed to lower control.Water-cooled engine is the cylinder block of cooled engine not only, also can be cooling the heat of waste gas is taken in the exhaust-heat exchanger of cooling water and/or the device that the multitube cooling device is cooled off.
Because the compressor that is used to compress refrigerant is equivalent to the heart portion of heat pump, so increase of the temperature rising of the air pressure of refrigerant with seasonal refrigerant by refrigerant being carried out adiabatic compression.The refrigerant heat exchanger is the device that transmits the heat of refrigerant to the room of need heating.Heating the time become the heat of the refrigerant of high temperature to be dispersed in the air in the room that heats by the compressor adiabatic compression or water that the air in room etc. is heated etc. in.
Waste heat recoverer is the device to the heat of the cooling water of refrigerant transmission water-cooled engine.Utilize this waste heat recoverer, transmit the heat of cooling water, and reduce the temperature of cooling water to refrigerant.The temperature of obtaining the refrigerant of heat on the contrary then raises.
In addition, refrigerant also can be used as the heating that is used for specific room etc. with heat exchanger or the indoor heat exchanger of heating and refrigeration uses.
Also can have the exterior heat exchanger of between external heat source different of refrigerant therewith and refrigerant, carrying out heat exchange with heat exchanger.
The waste heat recovery plant of the water cooling type engine heat pump among the present invention, have the chilled(cooling) water return (CWR) that is used for cooled engine, circulation by the refrigerant loop of the refrigerant of compressor compresses, be connected the above-mentioned waste heat recoverer on chilled(cooling) water return (CWR) and the refrigerant loop and cold operation state that the temperature of the cooling water that circulates in the chilled(cooling) water return (CWR) is lower than particular value under stop to transmit the shut-down mechanism of cooling water to waste heat recoverer.Also have, the chilled(cooling) water return (CWR) has walks around shut-down mechanism transmits shunting circuit from cooling water to waste heat recoverer.
Shut-down mechanism is identical with device on the water cooling type engine heat pump that is located in the past, when the temperature of cooling water is low, makes cooling water stop to flow to waste heat recoverer.The heat that passes to refrigerant from cooling water is disappeared, and stop the function of waste heat recoverer.That is, shut-down mechanism makes the function stop of waste heat recoverer, thereby realizes having the temperature of cooling water is heated in wait by the driving of engine function.
As shut-down mechanism, identical with the past can be used the thermostatic valve of closing the cooling channel that flows to waste heat recoverer when the temperature of cooling water is specific low temperature, the switch valves such as magnetic valve with cooling water sensor.
The waste heat recovery plant of the water cooling type engine heat pump among the present invention has the shunting circuit of walking around this shut-down mechanism.Therefore the cooling water total energy by the shunting circuit engine flows into waste heat recoverer.In addition, become particular value in the temperature of cooling water and remove shut-down mechanism when above, make a large amount of cooling waters flow into waste heat recovery plant.Certainly cooling water also can flow into waste heat recoverer from shunting circuit.
In addition, shunting circuit preferably makes a part of cooling water shunting.Therefore the flow resistance that preferably has the restriction water yield is not so that a large amount of cooling waters is shunted.The cooling water that can avoid engine in view of the above becomes the situation that excessive low temperature, engine are in the supercooling state.At this moment, preferably flow resistance is set under the temperature of the cooling water cold operation state lower for the flow that flows in the shunting circuit and is accounted for 2～50% of all flows than particular value, than above-mentioned good be 5～30%, be more preferably 5～15% than above-mentioned.
The shut-down mechanism that the present invention relates to is the low temperature valve of switch valve under specific low temperature, the chilled(cooling) water return (CWR) that the present invention relates to can also have radiator and under the specific high temperature that specific low temperature is high than this high-temperature valve of switch valve, thereby the cooling water that switch transmits this radiator.
Close as the low temperature valve of shut-down mechanism of the present invention when cooling water is lower than specific low temperature, cooling water can not flow into waste heat recoverer by low temperature valve.The part of cooling water can flow into waste heat recoverer by shunting circuit.When cooling water was lower than specific low temperature, cooling water was lower than specific high temperature certainly, so cooling water can inflow radiator.
When cooling water temperature was higher and lower than specific high temperature than specific low temperature, cooling water flowed into waste heat recoverer from low temperature valve and shunting circuit two sides.This moment, cooling water can inflow radiator yet.
When cooling water temperature was higher than specific high temperature, low temperature valve and high-temperature valve were opened simultaneously.At this moment, cooling water flows into waste heat recoverer by shunting circuit and low temperature valve, and cooling water is by the high-temperature valve inflow radiator.
In addition, low temperature valve that the present invention relates to and high-temperature valve also do not mean that each concrete switch valve, and low temperature valve is called the valve system of the function of the cooling water with switch inflow waste heat recoverer.Therefore, in fact low temperature valve is made of 1 switch valve sometimes, also can be made of the switch valve more than 2 sometimes.Similarly, high-temperature valve is called the valve system of the function of the cooling water with switch inflow radiator, and in fact high-temperature valve is made of 1 switch valve sometimes, also can be made of the switch valve more than 2 sometimes.Also have, the transfer valve that low temperature valve also can be switched by the path to flow of cooling water sometimes constitutes.For example, as low temperature valve, can be for having a suction inlet sucking cooling water, discharge the low temperature mouth of the whole cooling waters that suck from suction inlet under than the low temperature of the 1st temperature and under the temperature more than the 2nd temperature more than above-mentioned the 1st temperature, discharging the device of the high temperature mouth of the whole cooling waters that suck from suction inlet.Also have, as low temperature valve, can be for for example having the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from outlet under than the low temperature of the 1st temperature and under the temperature more than the 2nd temperature more than above-mentioned the 1st temperature, sucking the device of the high temperature mouth of whole cooling waters of discharging from outlet.These the 1st temperature, the 2nd temperature also can be same temperature.At this moment, be the device that switches the path (low temperature oral-lateral or high temperature oral-lateral) of flow of cooling water with this temperature as the boundary line fully.On the other hand, the 2nd temperature also can be the temperature higher than the 1st temperature.At this moment, under the temperature between the 1st temperature and the 2nd temperature, cooling water flows into the low temperature mouth, also flows into the high temperature mouth.The transfer valve that high-temperature valve also can be switched by the path to flow of cooling water sometimes constitutes.During high-temperature valve, except the 3rd temperature is equivalent to the difference of the 1st temperature of low temperature valve, the 2nd temperature that the 4th temperature is equivalent to low temperature valve, can be for example identical device with low temperature valve.The 3rd temperature, the 4th temperature are set for all higher than in the 1st temperature, the 2nd temperature any one.
As the switch valve that relates to, can adopt over known thermostatic valve, possess the magnetic valve of temperature sensor etc.
Concrete chilled(cooling) water return (CWR) can be as Fig. 1～shown in Figure 8.
Chilled(cooling) water return (CWR) as shown in Figure 1 has and possesses the suction inlet 610 that sucks cooling water, under than the low temperature of the 1st temperature, discharge from the low temperature mouth 611 of whole cooling waters of suction inlet 610 suctions, with the low temperature valve 61 of the high temperature mouth 612 of under the temperature more than the 2nd temperature higher, discharging the whole cooling waters that suck from suction inlet 610 with possess the suction inlet 620 that sucks cooling water than the 1st temperature, under than the low temperature of the 3rd temperature, discharge from the low temperature mouth 621 of whole cooling waters of suction inlet 620 suctions, with the high-temperature valve 62 of discharge under the temperature more than the 4th temperature higher from the high temperature mouth 622 of whole cooling waters of suction inlet 620 suctions than the 3rd temperature.Set for than the 1st and the 2nd temperature (specific low temperature) height in this 3rd and the 4th temperature (specific high temperature).Promptly the 3rd temperature is set for than the 2nd temperature height.
Chilled(cooling) water return (CWR) as shown in Figure 1 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the suction inlet 610 of low temperature valve 61, connect the low temperature mouth 611 of this low temperature valve 61 and the recovery path 12 of the cooling water suction inlet 26 of engine 2, connect the high temperature mouth 612 of low temperature valve 61 and second supply passageway 110 of the suction inlet 620 of high-temperature valve 62, the low temperature mouth 621 and the Waste Heat Recovery path 13 that reclaims path 12 that connect high-temperature valve 62 through waste heat recoverer 64, the high temperature mouth 622 and the radiator path 14 that reclaims path 12 that connect high-temperature valve 62 through radiator 63, constitute with the bypass 15 of the supply port 641 that is connected supply passageway 11 and waste heat recoverer 64.
This chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and how the water temperature of cooling water all can make cooling water flow into waste heat recoverer 64 by bypass 15.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into Waste Heat Recovery path 13 by the supply passageway 11 and second supply passageway 110, and waste heat recoverer 64 obtains the supply of cooling water from bypass 15 and Waste Heat Recovery path 13 these two paths.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the whole cooling waters that are inhaled into the suction inlet 610 of low temperature valve 61 were discharged from low temperature mouth 611, and cooling water is only by bypass (shunting circuit) 15 inflow waste heat recoverers 64.That is, when not having bypass 15, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Chilled(cooling) water return (CWR) as shown in Figure 2 has and possesses the suction inlet 610 that sucks cooling water, under than the low temperature of the 1st temperature, discharge from the low temperature mouth 611 of whole cooling waters of suction inlet 610 suctions, with the low temperature valve of the high temperature mouth 612 of under the temperature more than the 2nd temperature higher, discharging the whole cooling waters that suck from suction inlet 610 with possess the outlet 623 of discharging cooling water than the 1st temperature, under than the low temperature of the 3rd temperature, suck from the low temperature mouth 621 of whole cooling waters of outlet 623 discharges, with the high-temperature valve of suction under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth 622 of whole cooling waters of outlet 623 discharges.Set for than the 1st and the 2nd temperature (specific low temperature) height in this 3rd and the 4th temperature (specific high temperature).Promptly the 3rd temperature is set for than the 2nd temperature height.
Chilled(cooling) water return (CWR) as shown in Figure 2 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the suction inlet 610 of low temperature valve 61, connect the low temperature mouth 611 of low temperature valve 61 and the recovery path 12 of the cooling water suction inlet 26 of engine 2, connect the high temperature mouth 612 of low temperature valve 61 and the Waste Heat Recovery path 13 of the low temperature mouth 621 of high-temperature valve 62 through waste heat recoverer 64, connect the high temperature mouth 612 of low temperature valve 61 and the radiator path 14 of the high temperature mouth 622 of high-temperature valve 62 through radiator 63, the flow export 623 and the second recovery path 120 that reclaims path 12 that connect high-temperature valve 62, connecting supply passageway 11 constitutes with flow export 642 that is connected waste heat recoverer 64 and second bypass 150 of reclaiming any one party in the path 12 and the second recovery path 120 with first bypass 15 of the suction inlet 641 of waste heat recoverer 64.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 2 and the chilled(cooling) water return (CWR) of Fig. 1 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and how the water temperature of cooling water all can make cooling water pass through first bypass (shunting circuit) 15 and flow into waste heat recoverer 64.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into waste heat recoverers 64 by supply passageway 11 and Waste Heat Recovery path 13.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the whole cooling waters that are inhaled into the suction inlet 610 of low temperature valve 61 were discharged from low temperature mouth 611, and cooling water is only by bypass 15 inflow waste heat recoverers 64.That is, when not having bypass 15, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
The chilled(cooling) water return (CWR) of Fig. 3 has and possesses the suction inlet 610 that sucks cooling water, under than the low temperature of the 1st temperature, discharge from the low temperature mouth 611 of whole cooling waters of suction inlet 610 suctions, with the low temperature valve 61 of the high temperature mouth 612 of under the temperature more than the 2nd temperature more than the 1st temperature, discharging the whole cooling waters that suck from suction inlet 611 with possess the suction inlet 620 that sucks cooling water, under than the low temperature of the 3rd temperature, discharge from the low temperature mouth 621 of whole cooling waters of suction inlet 620 suctions, with the high-temperature valve 62 of discharge under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth of whole cooling waters of suction inlet 610 suctions.
The chilled(cooling) water return (CWR) of Fig. 3 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the suction inlet 620 of high-temperature valve 62, connect the low temperature mouth 621 of high-temperature valve 62 and second supply passageway 110 of the suction inlet 610 of low temperature valve 61, connect the low temperature mouth 611 of low temperature valve 61 and the recovery path 12 of the cooling water suction inlet 26 of engine 2, the high temperature mouth 612 and the Waste Heat Recovery path 13 that reclaims path 12 that connect low temperature valve 61 through waste heat recoverer 64, the high temperature mouth 622 and the radiator path 14 that reclaims path 12 that connect high-temperature valve 62 through radiator 63, constitute with the bypass 15 of the supply port 641 that is connected supply passageway 11 and waste heat recoverer 64.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 3 and the chilled(cooling) water return (CWR) of Fig. 1 and Fig. 2 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1 and Fig. 2 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and how the water temperature of cooling water all can make cooling water flow into waste heat recoverer 64 by bypass (shunting circuit) 15.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into Waste Heat Recovery path 13 by the supply passageway 11 and second supply passageway 110, and waste heat recoverer 64 obtains the supply of cooling water from bypass 15 and Waste Heat Recovery path 13 these two paths.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the whole cooling waters that are inhaled into the suction inlet 610 of low temperature valve 61 were discharged from low temperature mouth 611, and cooling water is only by bypass 15 inflow waste heat recoverers 64.That is, when not having bypass 15, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Chilled(cooling) water return (CWR) as shown in Figure 4 has and possesses the outlet 613 of discharging cooling water, under than the low temperature of the 1st temperature, suck from the low temperature mouth 611 of whole cooling waters of outlet 613 discharges, with the low temperature valve 61 of the high temperature mouth 612 that under the temperature more than the 2nd temperature more than the 1st temperature, sucks whole cooling waters of discharging from outlet 613 with possess the suction inlet 620 that sucks cooling water, under than the low temperature of the 3rd temperature, discharge from the low temperature mouth 621 of whole cooling waters of suction inlet 620 suctions, with the high-temperature valve 62 of discharge under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth 622 of whole cooling waters of suction inlet 620 suctions.
Chilled(cooling) water return (CWR) as shown in Figure 4 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the suction inlet 620 of high-temperature valve 62, connect the low temperature mouth 621 of high-temperature valve 62 and second supply passageway 110 of the low temperature mouth 611 of low temperature valve 61, connect the flow export 613 of low temperature valve 61 and the recovery path 12 of the cooling water suction inlet 26 of engine 2, the Waste Heat Recovery path 13 that connects the high temperature mouth 612 of second supply passageway 110 and low temperature valve 61 through waste heat recoverer 64, connect the high temperature mouth 622 of high-temperature valve 62 and the radiator path 14 of the high temperature mouth 612 of low temperature valve 61 through radiator 63, connect first bypass 15 of the supply passageway 11 and second supply passageway 110, constitute with Waste Heat Recovery path 13 that is connected waste heat recoverer 64 downstreams and second bypass 150 of reclaiming path 12.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 4 and the chilled(cooling) water return (CWR) of Fig. 1～Fig. 3 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1～Fig. 3 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and the water temperature of cooling water how all can make cooling water pass through first bypass 15 and second bypass (shunting circuit) 150 flows into waste heat recoverer 64.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into waste heat recoverers 64 by supply passageway 11 and Waste Heat Recovery path 13.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the high temperature mouth 612 of low temperature valve 61 was interdicted, and the cooling water that flow into Waste Heat Recovery path 13 only is sent to by second bypass 150 and reclaims path 12.That is, when not having second bypass 150, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Chilled(cooling) water return (CWR) as shown in Figure 5 has and possesses the outlet 613 of discharging cooling water, under than the low temperature of the 1st temperature, suck from the low temperature mouth 611 of whole cooling waters of outlet 613 discharges, with the low temperature valve 61 of the high temperature mouth 612 that under the temperature more than the 2nd temperature more than the 1st temperature, sucks whole cooling waters of discharging from outlet 613 with possess the outlet 623 of discharging cooling water, under than the low temperature of the 3rd temperature, suck from the low temperature mouth 621 of whole cooling waters of outlet 623 discharges, with the high-temperature valve 62 of suction under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth 622 of whole cooling waters of outlet 623 discharges.
Chilled(cooling) water return (CWR) as shown in Figure 5 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the low temperature mouth 611 of low temperature valve 61, the recovery path 12 of the flow export of connection low temperature valve 61 and the cooling water suction inlet 26 of engine 2, the Waste Heat Recovery path 13 that connects the low temperature mouth 621 of supply passageway 11 and high-temperature valve 62 through waste heat recoverer 64, the radiator path 14 that connects the high temperature mouth 622 of supply passageway 11 and high-temperature valve 62 through radiator 63, connect the flow export 623 of high-temperature valve 62 and the second recovery path 120 of the high temperature mouth 612 of low temperature valve 61, constitute with Waste Heat Recovery path 13 that is connected waste heat recoverer 64 downstreams and the bypass 15 of reclaiming path 12.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 5 and the chilled(cooling) water return (CWR) of Fig. 1～Fig. 4 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1～Fig. 4 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and how the water temperature of cooling water all can make cooling water flow into waste heat recoverer 64 by bypass (shunting circuit) 15.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into waste heat recoverers 64 by the Waste Heat Recovery path 13 and the second recovery path 120.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the high temperature mouth 612 of low temperature valve 61 was interdicted, and the cooling water that flow into Waste Heat Recovery path 13 only is sent to by bypass 15 and reclaims path 12.That is, when not having bypass 15, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Chilled(cooling) water return (CWR) as shown in Figure 6 has and possesses the outlet 613 of discharging cooling water, under than the low temperature of the 1st temperature, suck from the low temperature mouth 611 of whole cooling waters of outlet 613 discharges, with the low temperature valve of the high temperature mouth 612 that under the temperature more than the 2nd temperature more than the 1st temperature, sucks whole cooling waters of discharging from outlet 613 with possess the suction inlet 620 that sucks cooling water, under than the low temperature of the 3rd temperature, discharge from the low temperature mouth 621 of whole cooling waters of suction inlet 620 suctions, with the high-temperature valve of discharge under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth 622 of whole cooling waters of suction inlet 620 suctions.
Chilled(cooling) water return (CWR) as shown in Figure 6 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the low temperature mouth 611 of low temperature valve 61, second supply passageway 110 that connects the inflow entrance of supply passageway 11 and high-temperature valve, the recovery path 12 of the flow export of connection low temperature valve 61 and the cooling water suction inlet 26 of engine 2, connect the low temperature mouth 621 of high-temperature valve 62 and the Waste Heat Recovery path 13 of the high temperature mouth 612 of low temperature valve 61 through waste heat recoverer 64, connect the high temperature mouth 622 of high-temperature valve 62 and the radiator path 14 of the high temperature mouth 612 of low temperature valve 61 through radiator 63, connecting supply passageway 11 constitutes with Waste Heat Recovery path 15 that is connected waste heat recoverer 64 downstreams and second bypass 150 of reclaiming path 12 with first bypass 15 of the Waste Heat Recovery path 13 of waste heat recoverer 64 upstream sides.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 6 and the chilled(cooling) water return (CWR) of Fig. 1～Fig. 5 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1～Fig. 5 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and the water temperature of cooling water how all can make cooling water pass through first bypass 15 and second bypass (shunting circuit) 150 flows into waste heat recoverer 64.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into waste heat recoverers 64 by second supply passageway 110 and Waste Heat Recovery path 13.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the high temperature mouth 612 of low temperature valve 61 was interdicted, and the cooling water that flow into Waste Heat Recovery path 13 only is sent to by second bypass 150 and reclaims path 12.That is, when not having second bypass 150, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Chilled(cooling) water return (CWR) as shown in Figure 7 has and possesses the outlet 613 of discharging cooling water, under than the low temperature of the 1st temperature, suck from the low temperature mouth 611 of whole cooling waters of outlet 613 discharges, with the low temperature valve 61 of the high temperature mouth 612 that under the temperature more than the 2nd temperature more than the 1st temperature, sucks whole cooling waters of discharging from outlet 613 with possess the outlet 623 of discharging cooling water, under than the low temperature of the 3rd temperature, suck from the low temperature mouth 621 of whole cooling waters of outlet 623 discharges, with the high-temperature valve 62 of suction under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth 622 of whole cooling waters of outlet 623 discharges.
Chilled(cooling) water return (CWR) as shown in Figure 7 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the low temperature mouth 611 of low temperature valve 61, second of the flow export of connection low temperature valve 61 and the low temperature mouth 621 of high-temperature valve 62 reclaims path 120, the recovery path 12 of the flow export of connection high-temperature valve and the cooling water suction inlet 26 of engine 2, the Waste Heat Recovery path 13 that connects the high temperature mouth 612 of supply passageway 11 and low temperature valve 61 through waste heat recoverer 64, the radiator path 14 that connects the high temperature mouth 622 of supply passageway 11 and high-temperature valve 62 through radiator 63, constitute with Waste Heat Recovery path 13 that is connected waste heat recoverer 64 downstreams and the bypass 15 of reclaiming path 12.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 7 and the chilled(cooling) water return (CWR) of Fig. 1～Fig. 6 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1～Fig. 6 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and how the water temperature of cooling water all can make cooling water pass through supply passageway 11, bypass (shunting circuit) 15 flows into waste heat recoverer 64.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water reclaims path 120 by supply passageway 11 and Waste Heat Recovery path 13, second and flows into waste heat recoverers 64.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the high temperature mouth 612 of low temperature valve 61 was interdicted, and the cooling water that flow into Waste Heat Recovery path 13 only is sent to by bypass 15 and reclaims path 12.That is, when not having bypass 15, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Chilled(cooling) water return (CWR) as shown in Figure 8 has and possesses the suction inlet 610 that sucks cooling water, under than the low temperature of the 1st temperature, discharge from the low temperature mouth 611 of whole cooling waters of suction inlet 610 suctions, with the low temperature valve 61 of the high temperature mouth 612 of under the temperature more than the 2nd temperature more than the 1st temperature, discharging the whole cooling waters that suck from suction inlet 610 with possess the outlet 623 of discharging cooling water, under than the low temperature of the 3rd temperature, suck from the low temperature mouth 621 of whole cooling waters of outlet 623 discharges, with the high-temperature valve 62 of suction under the temperature more than the 4th temperature more than the 3rd temperature from the high temperature mouth 622 of whole cooling waters of outlet 623 discharges.
Chilled(cooling) water return (CWR) as shown in Figure 8 is by the supply passageway 11 of the cooling water outlet 25 that connects engine 2 with the inflow entrance 610 of low temperature valve 61, connect the low temperature mouth 611 of low temperature valve 61 and the recovery path 12 of the cooling water suction inlet 26 of engine 2, the Waste Heat Recovery path 13 that connects the low temperature mouth 621 of supply passageway 11 and high-temperature valve 62 through waste heat recoverer 64, the radiator path 14 that connects the high temperature mouth 622 of supply passageway 11 and high-temperature valve 62 through radiator 63, the flow export 623 and the second recovery path 120 that reclaims path 12 that connect high-temperature valve 62, connect first bypass 15 of the Waste Heat Recovery path 13 of supply passageway 11 and waste heat recoverer 64 upstream sides, constitute with Waste Heat Recovery path 13 that is connected waste heat recoverer 64 downstreams and second bypass 150 of reclaiming path 12.
The low temperature valve of the chilled(cooling) water return (CWR) of Fig. 8 and the chilled(cooling) water return (CWR) of Fig. 1～Fig. 7 and the use form of high-temperature valve are different.Yet, identical to the chilled(cooling) water return (CWR) of the cooling-water flow of waste heat recoverer, radiator and Fig. 1～Fig. 7 according to the temperature flow of cooling water.That is, this chilled(cooling) water return (CWR) is when water pump 65 work of engine 2, and how the water temperature of cooling water all can make cooling water pass through supply passageway 11, first bypass (shunting circuit) 15 flows into waste heat recoverer 64.When cooling water temperature is higher and lower than specific high temperature than specific low temperature (when ratio the 2nd temperature is high and lower than the 3rd temperature), cooling water flows into waste heat recoverers 64 by supply passageway 11 and Waste Heat Recovery path 13.Yet radiator path 14 is closed in high-temperature valve 62, so cooling water does not flow in radiator 63.When the temperature of cooling water was lower than particular value (the 1st temperature), the high temperature mouth 612 of low temperature valve 61 was interdicted, and cooling water only flows into waste heat recoverers 64 by bypass 15.That is, when not having bypass 15, stop to transmit cooling water to waste heat recoverer 64.Therefore, low temperature valve 61 becomes the shut-down mechanism that temperature at cooling water stops to transmit to waste heat recoverer 64 cooling waters under than the low cold operation state of particular value (the 1st temperature).
Description of drawings
Fig. 1 is the schematic diagram of the chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 2 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 3 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 4 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 5 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 6 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 7 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 8 is the schematic diagram of other chilled(cooling) water return (CWR) that the present invention relates to of expression.
Fig. 9 is the basic comprising figure of the water cooling type engine heat pump in the embodiments of the invention.
Figure 10 is water cooling type engine heat pump and the elapsed time engine start of water cooling type engine heat pump in comparative example after and the chart of relation engine speed between of expression in the embodiments of the invention.
Figure 11 is water cooling type engine heat pump and the elapsed time engine start of water cooling type engine heat pump in comparative example after and the chart of relation cooling water water temperature between of expression in the embodiments of the invention.
Figure 12 is water cooling type engine heat pump and the elapsed time engine start of water cooling type engine heat pump in comparative example after and the chart of relation refrigerant low pressure between of expression in the embodiments of the invention.
Among the figure:
1: chilled(cooling) water return (CWR) 2: gas engine 3: compressor
4: refrigerant loop 11: supply passageway 12: reclaim path
13: Waste Heat Recovery path 14: radiator path 15: bypass (shunting circuit)
16: flow resistance 25: cooling water outlet 26: the cooling water suction inlet
Supply passageway reclaimed path at 120: the second in 110: the second
Bypass in 150: the second (shunting circuit) 61: low temperature valve
610: suction inlet 611: low temperature mouth 612: the high temperature mouth
613: outlet 62: high-temperature valve 620: suction inlet
621: low temperature mouth 622: high temperature mouth 623: outlet
63: heat radiation 64: waste heat recoverer 65: water pump
73: heat exchanger indoor unit 74: indoor set expansion valve 75: the off-premises station expansion valve
76: off-premises station heat exchanger 77: reservoir 79: secondary hydraulic valve
Embodiment
Below, just the embodiment of the water cooling type engine heat pump among the present invention describes.
The basic comprising figure of the water cooling type engine heat pump of present embodiment as shown in Figure 9.This water cooling type engine heat pump by water-cooled engine 2, cool off the chilled(cooling) water return (CWR) 1 of this engine, engine-driven 2 compressors 3 and the refrigerant loop 4 of having been flowed by the refrigerant of compressor 3 compression constitute thus.
Gas engine 2 is that the natural gas of volume of cylinder 950cc is the device of fuel, possesses output pulley 21, multitube cooling device 22, waste gas heat switch 23 and blast pipe 24.This gas engine 2 has the control part that reduces the rotating speed of gas engine 2 when the temperature of the refrigerant in refrigerant described later loop is hanged down.
Chilled(cooling) water return (CWR) 1 connects low temperature valve 61, high-temperature valve 62, radiator 63, waste heat recoverer 64, water pump 65, pressure cover 67, buffer tank 68 and multitube cooling device 22 and exhaust-heat exchanger 23.Low temperature valve 61 possesses the suction inlet 610 that sucks cooling water, discharge the low temperature mouth 611 of the whole cooling waters that suck from suction inlet 610 under than the low temperature of the 1st temperature and discharge the high temperature mouth 612 of the whole cooling waters that suck from suction inlet 610 under the temperature more than the 2nd temperature higher than the 1st temperature.High-temperature valve 62 possesses the suction inlet 620 that sucks cooling water, discharge the low temperature mouth 621 of the whole cooling waters that suck from suction inlet 620 under than the low temperature of the 3rd temperature and discharge the high temperature mouth 622 of the whole cooling waters that suck from suction inlet 620 under the temperature more than the 4th temperature higher than the 3rd temperature.As the loop, by the supply passageway 11 of the cooling water outlet 25 that connects gas engine 2 with the suction inlet 610 of low temperature valve 61, the recovery path 12 that connects the low temperature mouth 611 of this low temperature valve 61 and the cooling water suction inlet of gas engine 2 (indicating among the figure), connect the high temperature mouth 612 of low temperature valve 61 and second supply passageway 110 of the suction inlet 620 of high-temperature valve 62, the low temperature mouth 621 and the Waste Heat Recovery path 13 that reclaims path 12 that connect high-temperature valve 62 through waste heat recoverer 64, the high temperature mouth 622 and the radiator path 14 that reclaims path 12 that connect high-temperature valve 62 through radiator 63, connect the stand-by channel 18 that reclaims path 12 and buffer tank 68 by pressure cover 67, the bypass 15 that connects the supply port 641 of supply passageway 11 and waste heat recoverer 13 constitutes.Flow resistance 16 is set in bypass 15.Flow resistance 16 be configured to temperature at cooling water than the low cold operation state of particular value (the 1st temperature) under, the flow that flows in the shunting circuit accounts for 10% of all flows (flow of sending from the cooling water outlet 25 of engine 2).
Low temperature valve 61 and high-temperature valve 62 are all thermostatic valve, thereby and are that temperature according to cooling water heats or cools off the device that thermostat makes its thermal expansion or thermal contraction driver's valve.Setting the 1st temperature respectively for and be 60 ℃, the 2nd temperature and be 65 ℃, the 3rd temperature and be 70 ℃, the 4th temperature is 75 ℃.That is to say, set the 3rd and the 4th temperature (specific high temperature) for than the 1st and the 2nd temperature (specific low temperature) height.Promptly set the 3rd temperature for than the 2nd temperature height.
Low temperature valve 61 is opened under than 60 ℃ of low cooling water temperatures and is communicated with its suction inlet 610 and low temperature mouth 611, and closes suction inlet 610 and high temperature mouth 612.The whole cooling waters that suck from suction inlet 610 under this state flow into low temperature mouth 611.Also have when cooling water temperature becomes more than 60 ℃, on the contrary, begin to close its suction inlet 610 and low temperature mouth 611, and begin to open suction inlet 610 and be communicated with high temperature mouth 612 so that they.When flowing into low temperature mouth 611, the cooling water that sucks from suction inlet 610 under this state also flows into high temperature mouth 612.Also have more than 65 ℃ the time, close its suction inlet 610 and low temperature mouth 611 fully, and open suction inlet 610 and high temperature mouth 612 fully.The whole cooling waters that suck from suction inlet 610 under this state flow into high temperature mouth 612.
Low temperature valve 61 carries out switch to these low temperature mouths 611 and high temperature mouth 612 between 60 ℃～65 ℃.High-temperature valve 62 carries out switch to these low temperature mouths 621 and high temperature mouth 622 between 70 ℃～75 ℃
Because radiator 63 is to be used for heat with cooling water to be dispersed into device in the atmosphere, so be generally used in the water-cooled engine.Waste heat recoverer 64 is the liquid-liquid heat exchangers that carry out heat exchange between cooling water and refrigerant.Water pump 65 utilizes by engine-driven pump driving cooling water that circulates.Pressure cover 67 is devices that the vapour pressure to cooling water limits, and buffer tank 68 is the devices that carry out the supply of cooling water.
In addition, be provided with water pump 65, exhaust-heat exchanger 23 and multitube cooling device 22 in reclaiming path 12, the transmission by cooling water, the cooling water that contains engine waste heat reclaim.
In addition, the chilled(cooling) water return (CWR) in the present embodiment 1 is identical with the essential structure of chilled(cooling) water return (CWR) shown in Figure 1.
Describe with regard to the relation between the temperature of the cooling-water flow of the chilled(cooling) water return (CWR) in the present embodiment 1 and cooling water.
Just supply with cooling waters by engine 2 driving water pumps 65 and from supply passageway 11 when starting water-cooled engine 2, cooling water returns at last and reclaims path 12 and flow to chilled(cooling) water return (CWR) 1.
When cooling water was lower than 60 ℃, low temperature valve 61 was opened and is communicated with its suction inlet 610 and low temperature mouth 611.Therefore, the cooling water of supply passageway 11 returns immediately after by low temperature valve 61 and reclaims path 12.In addition, a part of cooling water returns through bypass 15 from supply passageway 11 and reclaims path 12.Therefore supply with the cooling water that flows by bypass 15 to waste heat recoverer 64.Reclaim path 12 and heated by waste gas, also have cylinder block to be heated through gas engine 2 through exhaust-heat exchangers 23 and multitube cooling device 22.
In addition, because cooling water is lower than 60 ℃, so the high temperature mouth 612 of low temperature valve 61 is not opened.Therefore do not supply with cooling water to second supply passageway 110 from supply passageway 11.Also have, because the critical-temperature of high-temperature valve 62 is 70 ℃～75 ℃, so high temperature mouth 622 is closed.Therefore the cooling water of supplying with from bypass 15 can not be supplied to radiator 63 yet.Therefore, when cooling water temperature was lower than 60 ℃, cooling water can not be sent to radiator 63, and cooling water is sent to waste heat recoverer 64 by bypass 15, and most cooling water flows to from supply passageway 11 and reclaims path 12 and circulate.Reclaiming the cooling water that flows in the path 12 is heated by exhaust-heat exchanger 23, multitube cooling device 22 and cylinder block.
The low temperature mouth 611 of low temperature valve 61 more than 60 ℃ just begins to close and high temperature mouth 612 begins to open if cooling water temperature becomes.If cooling water temperature becomes more than 65 ℃, the low temperature mouth 611 of low temperature valve 61 is just closed fully and high temperature mouth 612 is opened fully.Because low temperature mouth 611 is closed, so do not had directly to return the cooling water that reclaims path 12 from supply passageway 11.Also have, by the high temperature mouth 612 of low temperature valve 61, cooling water flows into second supply passageway 110 from supply passageway 11.Low temperature mouth 621 is opened in high-temperature valve 62, and high temperature mouth 622 is closed.So the low temperature mouth of the cooling water of second supply passageway 110 process high-temperature valve 62, and by waste heat recoverer 64 inflow Waste Heat Recovery paths 13.Also have, return at last and reclaim path 12.This moment, a part of cooling water also can flow into waste heat recoverer 64 by bypass 15.That is, become whole cooling waters and all can pass through waste heat recoverer 64.
If cooling water temperature becomes more than 70 ℃, the high temperature mouth 621 of high-temperature valve 62 just begins to close and high temperature mouth 622 begins to open.Therefore the cooling water of supply passageway 11 flows into second supply passageway 110 by the high temperature mouth 612 of low temperature valve 61, then pass through high temperature mouth 622, the inflow radiator path 14 of high-temperature valve 62, and cooling water can flow in the radiator 63.Owing to be cooled and its temperature reduction by radiator 64 heat radiation event cooling waters.The cooling water that temperature has reduced returns and reclaims path 12.At cooling water temperature is more than 75 ℃ the time, and the low temperature mouth 621 of high-temperature valve 62 is closed fully and high temperature mouth 622 is opened fully.Therefore supply to the whole inflow radiator paths 14 of cooling water of second supply passageway 110, and do not flow to Waste Heat Recovery path 13.
Refrigerant loop 4 has by engine-driven 2 compressors 3, separator 71, four-way switching valve 72, heat exchanger indoor unit 73, indoor set expansion valve 74, off-premises station expansion valve 75, off-premises station heat exchanger 76, reservoir 77, secondary hydraulic valve 78 and waste heat recoverer 64.2 compressors 3 are configurations arranged side by side, and the rotating band 31 that is contained in by frame on the output pulley 21 of engine 2 drives, and is the device that the cryogenic gases adiabatic compression is become the cryogenic gases of HTHP.
Refrigerant loop 4 has the outlet 31 of each compressor 3 of connection and the supply passageway 41 of the inflow entrance 720 of cross valve 72, connect the flow export 723 of cross valve 72 and the recovery path 42 of the suction inlet 32 of compressor 3, the 1st opening 721 of cross valve 72 is connected heat exchanger indoor unit 73 with the 2nd opening 722 as two ends with being arranged into row, indoor set expansion valve 74, the heat exchange paths 43 of off-premises station expansion valve 75 and off-premises station heat exchanger 76, with the heat exchange paths 43 and the Waste Heat Recovery path 44 that reclaims path 42 that are connected through waste heat recoverer 64.
Be provided with separator 71 on supply passageway 41, isolated oil reclaims path 45 by oil and returns recovery path 42.In reclaiming path 42, be provided with reservoir 77.This reservoir 77 is the devices that return compressor 3 at the gasiform refrigerant in same season of storing aqueous refrigerant.
Heat exchange paths 43 is made of the 3rd heat exchange paths portion 433 that connects the 1st heat exchange paths portion 431 of the 1st opening 721 of cross valves 72 with indoor set switch 73 by main shaft valve 78, be connected the 2nd heat exchange paths portion 432 of heat exchanger indoor unit 73 and off-premises station heat exchanger 76 and be connected the 2nd opening 722 of off-premises station heat exchanger 76 and cross valve 72 by indoor set expansion valve 74, main shaft valve 78, off-premises station expansion valve 75.Indoor set expansion valve 74 have refrigerant from heat exchanger indoor unit 73 when off-premises station heat exchanger 76 flows with the function of the 2nd heat exchange paths portion 432 as expansion valve.On the contrary, off-premises station expansion valve 75 have refrigerant from off-premises station heat exchanger 76 when heat exchanger indoor unit 73 flows with the function of the 2nd heat exchange paths portion 432 as expansion valve.
Waste heat recoverer 44 is made of the 1st Waste Heat Recovery passage portion 441 of the 2nd heat exchange paths portion 431 that connects by secondary hydraulic valve 79 with waste heat recoverer 64, the 2nd Waste Heat Recovery passage portion 442 that is connected waste heat recoverer 64 and recovery path 42.Secondary hydraulic valve 79 is valves that the flow of the aqueous refrigerant that flows into Waste Heat Recovery path 44 is controlled.At this, carry out following adjustment, when outside air temperature is lower than the temperature of refrigerant, increase the flow of secondary hydraulic valve 79, and when higher, reduce the flow of secondary hydraulic valve 79 than the temperature of refrigerant.
The heat exchanger indoor unit 73 of this water cooling type engine heat pump and indoor set expansion valve 74 are configured in usually needs the indoor of air conditioning, and other parts such as engine 2, compressor 3 then are configured in outdoor.Water cooling type engine heat pump in the present embodiment has aforesaid formation.
Then the function with regard to this water cooling type engine heat pump describes.
This water-cooled heat pump is being used in when heating, the valve of cross valve 72 is being switched to the inflow entrance 720 that makes cross valve 72 be communicated with, make simultaneously the 2nd opening 722 of cross valve 72 to be communicated with flow export 723 with the 1st opening 721.The high-pressure cryogen of being crossed by compressor 3 adiabatic compression is passed through the separator 71 of supply passageway 41 in view of the above, flows into the 1st heat exchange paths portion 431 by cross valve 72, and machine heat exchanger 73 in the inlet chamber.The heat of refrigerant is delivered to room air in this heat exchanger indoor unit 73, and the temperature of refrigerant reduces.Thereby room air is heated and heats on the contrary.The refrigerant that has left heat exchanger indoor unit 73 is by indoor set expansion valve 74 and carry out adiabatic expansion, the temperature step-down of when its part liquefies refrigerant thereby the temperature of refrigerant is cooled.Partial liquefaction refrigerant enter off-premises station heat exchanger 76 by the 2nd heat exchange paths portion 432.Heat with outside air in this off-premises station heat exchanger 76 passes to refrigerant.Thereby refrigerant is heated aqueous refrigerant gasification becoming gas in view of the above.The refrigerant that has become gas enters by cross valve 72 and reclaims path 42, is returned compressor 3 by gas-liquid separation and only gasiform refrigerant in reservoir 77.Also have, the aqueous refrigerant that flows to the 2nd heat exchange paths portion 432 flows into Waste Heat Recovery path 44.That is, an one of the aqueous refrigerant of the 2nd heat exchange paths portion 432 enters waste heat recoverer 64 by secondary hydraulic valve 79, and flows into and reclaim path 42.Thereby aqueous refrigerant is heated to gasify and becomes gasiform refrigerant in waste heat recoverer 64.
The heat that utilizes waste heat recoverer 64 to reclaim is bigger according to the cooling water temperature change.In this embodiment, cooling water temperature under than 60 ℃ of low temperature because low temperature valve 61 cooling waters can not supply to second supply passageway 110 from supply passageway 11.Therefore only supply with the cooling water of process bypass 15 to waste heat recoverer 64.If cooling water temperature becomes the high temperature mouth 612 of low temperature valve 61 more than 60 ℃ and just begins to open, cooling water begins to supply to second supply passageway 110 from supply passageway 11.Be more than 65 ℃ and compare cooling waters whole under 70 ℃ of low temperature at cooling water temperature through waste heat recoverer 64.At cooling water temperature is that the high temperature mouth 622 of cooling water by high-temperature valve 62 of second supply passageway 110 more than 70 ℃ the time begins to flow to radiator 63, and the cooling water that flows to waste heat recoverer 64 begins to reduce.At cooling water temperature is more than 75 ℃ the time, and the cooling water that flows to waste heat recoverer 64 is the cooling water for flowing in the bypass 15 only.
The heat of introducing refrigerant from outside air and cooling water when heating operation in off-premises station heat exchanger 76 and waste heat recoverer 64 is used in heat exchanger indoor unit 73 room air is heated.
Describe when secondly just being used in refrigeration.At first the valve of cross valve 72 being switched to the inflow entrance 720 that makes cross valve 72 is communicated with, makes simultaneously the 1st opening 721 of cross valve 72 to be communicated with flow export 723 with the 2nd opening 722.The refrigerant of the HTHP of being crossed by compressor 3 adiabatic compression flows into the 3rd heat exchange paths portion 433 from supply passageway 41 by cross valve 72 in view of the above, and the outer machine heat exchanger 76 of inlet chamber.The heat of refrigerant is delivered to outdoor air in this off-premises station heat exchanger 76, and the temperature of refrigerant reduces.The refrigerant that has left off-premises station heat exchanger 76 is by off-premises station expansion valve 75 and carry out adiabatic expansion, the temperature step-down of when its part liquefies refrigerant thereby the temperature of refrigerant is cooled.Partial liquefaction refrigerant enter heat exchanger indoor unit 73 by the 2nd heat exchange paths portion 432.Cool off room air in this heat exchanger indoor unit 73, refrigerant then is heated on the contrary, thus aqueous refrigerant gasification becoming gas.The refrigerant that has become gas enters by cross valve 72 and reclaims path 42, is returned compressor 3 by gas-liquid separation and only gasiform refrigerant in reservoir 77.Also have, thereby the gasiform refrigerant that flows to the 2nd heat exchange paths portion 432 is not flowed into Waste Heat Recovery path 44 by secondary hydraulic valve 79 preventions.
In this cooling circuit, cooling water always flows to waste heat recoverer 64.When under the low state of outside air temperature, carrying out refrigerating operaton,, cause the intermittent operation of having to that freezes thereby carry out ON-OFF control in order to prevent the excessive temperature reduction of heat exchanger indoor unit 73 and freezing of heat exchanger indoor unit 73.Yet, by open auxiliary hydraulic valve 79, can pay heat to the low-pressure side in refrigerant loop 4, owing to can prevent that heat exchanger indoor unit 73 from freezing, can realize refrigeration operation continuously.
When refrigerating operaton, the heat of refrigerant is passed to outside air in off-premises station heat exchanger 76, and indoor heat is passed to refrigerant and indoor temperature and reduces in heat exchanger indoor unit 73.
Then, with regard to the water cooling type engine heat pump of present embodiment outside air temperature for-5 ℃, can't draw fully by off-premises station heat exchanger 76 under the state of heat, the experimental result of engine speed, cooling water temperature and refrigerant low pressure between 0～10 minute elapsed time when having started engine for heating, after the engine start describes.
In addition, in order to compare, made the water cooling type engine heat pump of the comparative example of in the water cooling type engine heat pump of embodiment, only having closed bypass 15, same outside air temperature for-5 ℃, can't draw fully by off-premises station heat exchanger 76 under the state of heat, obtain the experimental result of engine speed, cooling water temperature and refrigerant low pressure when having started engine, between the effluxion 0～10 minute for heating
Result who obtains such as table 1, Figure 10, Figure 11 and shown in Figure 12.In addition, no bypass is the value of the water cooling type engine heat pump of comparative example, has bypass to represent the value of the water cooling type engine heat pump of present embodiment.Figure 10 is the elapsed time after the expression starting and the chart of the relation between the engine speed, Fig. 1 is the elapsed time and the chart of the relation between the cooling water water temperature after the expression starting, and Figure 12 is the elapsed time after expression is started and the chart of the relation between the refrigerant low pressure.
The water cooling type engine heat pump of embodiment and comparative example, all be just to become 1000 rev/mins at 1 fen rear engine rotating speed when piloting engine, refrigerant low pressure all is reduced to 0.3Mpa from 0.65Mpa.The cooling water temperature aspect, embodiment from-5 ℃ be changed to 0 ℃, comparative example be changed to 5 ℃ from-5 ℃, the cooling water temperature of the water cooling type engine heat pump of comparative example becomes higher.
(table 1)
Figure C20061005989200281
When the elapsed time is 2 minutes, and engine speed just begins to be elevated to 1100 rev/mins in an embodiment, continues to increase from 2 rotating speeds of assigning to 9 fens engines in an embodiment, is fixed as 2300 rev/mins after 9 minutes.Therewith relatively in comparative example, assign to 6 fens and keep 1000 rev/mins of low speed rotation from 2, be 1800 rev/mins through the increase of showing rotating speed after 6 minutes and through the engine speed of 10 timesharing then.
The cooling water temperature aspect, demonstrate in the present embodiment from 0 assign to 5 fens, the rate of rise in temperature of initial stage cooling water then rises rapidly in later half temperature slowly, becomes 60 ℃ and keeping 60 ℃ ever since then after 5 minutes.
Relative therewith, in comparative example, demonstrate from 0 and assign to 7 fens temperature rising almost fixed, after 7 minutes, become 60 ℃ and keeping 60 ℃ ever since.
If embodiment and comparative example are compared, it is lower than the temperature of the cooling water of comparative example to assign to the temperature of cooling water of 3 fens embodiment from 0, both become 25 ℃ equally after through 3 minutes, after this assign to the temperature of cooling water of 7 fens embodiment than the temperature height of the cooling water of comparative example from 3.
Identical at refrigerant low pressure connection embodiment and comparative example, passed through after 1 minute that refrigerant low pressure also can reduce but than minimum height, be that the refrigerant low pressure of 0.66Mpa, comparative example only is 0.5Mpa through 10 timesharing with respect to the refrigerant low pressure of embodiment.
Refrigerant low pressure uprises the rotating speed that can improve engine.The increase of the engine speed of the embodiment of Figure 10 increases corresponding with the pressure of the refrigerant low pressure of the embodiment of Figure 12.
At the refrigerant low pressure connection, through low the forcing down of refrigerant of the refrigerant low-pressure ratio comparative example of embodiment after 2 minutes.This means that the air pressure that is sent to by the refrigerant of engine-driven compressor 3 is higher in an embodiment, and lower in comparative example.That is, more the cryogenic gases of high pressure is sent to compressor in an embodiment, and because the rotating speed height of engine, so more cryogenic gases is carried out adiabatic compression by compressor.Therefore, the refrigerant of more HTHP is sent to heat exchanger indoor unit 73, so the short time that can be implemented in after the engine start is interior by heat exchanger indoor unit 73 acquisition warm braws.
In addition, low with interior cooling water temperature at 3 minutes after the engine start is because the cooling water that flows by bypass 15 has been paid hot cause to refrigerant approximately-20 ℃ in waste heat recoverer 64.In an embodiment, owing to followed the rising of the starting cooling water temperature of engine to compare temporarily step-down of comparative example by the cooling of the refrigerant in bypass event.Yet, can learn clearly that by Figure 10 the engine speed of embodiment is than the height of comparative example.That is, the more fuel of engine consumption of time per unit embodiment, and time per unit is supplied with the cooling water that more heat is given embodiment from engine.
Refrigerant low pressure uprises, more cryogenic gases is carried out adiabatic compression by compressor owing to dying to cooling water by engine supply more heat in the engine of embodiment.The refrigerant of therefore more HTHP is sent to heat exchanger indoor unit 73, so can obtain warm braw by heat exchanger indoor unit 73 in the short time after engine start.
Therefore, shown in the water cooling type engine heat pump of present embodiment, low in outside air temperature, in the time of can't expecting by off-premises station heat exchanger 76 heat absorption, can improve engine waste heat by motor driven and reclaim, in the shorter time, heat by heat exchanger indoor unit 73.
In the present embodiment, be illustrated, yet be not limited in the loop of this embodiment, also can bypass is being set or adopt known in the past refrigerant loop on the known chilled(cooling) water return (CWR) in the past with regard to specific chilled(cooling) water return (CWR) and refrigerant loop.

Claims (10)

1. water cooling type engine heat pump, have water-cooled engine, by this engine-driven compressor that is used to compress refrigerant, refrigerant with heat exchanger be used for transmitting the waste heat recovery plant of the heat of this engine to refrigerant;
Above-mentioned waste heat recovery plant have the chilled(cooling) water return (CWR) that is used for cooling off above-mentioned engine, circulation by the refrigerant loop of the refrigerant of this compressor compresses, be connected on this chilled(cooling) water return (CWR) and this refrigerant loop and the heat of this cooling water passed the shut-down mechanism that stops to transmit cooling water under the temperature of the cooling water that circulates to the waste heat recoverer of this refrigerant with in this chilled(cooling) water return (CWR) cold operation state lower to this waste heat recoverer than particular value
It is characterized in that:
Above-mentioned chilled(cooling) water return (CWR) has walks around above-mentioned shut-down mechanism transmits shunting circuit from cooling water to above-mentioned waste heat recoverer.
2. water cooling type engine heat pump according to claim 1 is characterized in that:
On above-mentioned shunting circuit, be provided with the flow resistance that limits the water yield that flows in this shunting circuit.
3. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, and above-mentioned chilled(cooling) water return (CWR) has radiator and high-temperature valve of switch valve under the specific high temperature that specific low temperature is high than this;
Above-mentioned low temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under than the low temperature of the 1st temperature and discharge the high temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under the temperature more than the 2nd temperature, and described the 2nd temperature is more than above-mentioned the 1st temperature;
Above-mentioned high-temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and discharge the high temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, and described the 4th temperature is more than above-mentioned the 3rd temperature;
Above-mentioned chilled(cooling) water return (CWR) also has:
First supply passageway that connects the suction inlet of the cooling water outlet of above-mentioned engine and above-mentioned low temperature valve;
Connect the low temperature mouth of this low temperature valve and this engine the cooling water suction inlet first reclaim path;
Second supply passageway that connects the suction inlet of the high temperature mouth of this low temperature valve and above-mentioned high-temperature valve;
The low temperature mouth and described first that connects described high-temperature valve reclaims the Waste Heat Recovery path of path, above-mentioned waste heat recoverer is arranged in this Waste Heat Recovery path, wherein the supply port of this waste heat recoverer is connected with the low temperature mouth of above-mentioned high-temperature valve, and the outlet of this waste heat recoverer and described first reclaims path and is connected; And
Connect the high temperature mouth of this high-temperature valve and the radiator path of this first recovery path, above-mentioned radiator is arranged in this radiator path;
Wherein, above-mentioned shunting circuit is the bypass that connects the supply port of this first supply passageway and this waste heat recoverer.
4. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, and above-mentioned chilled(cooling) water return (CWR) has radiator and high-temperature valve of switch valve under the specific high temperature that specific low temperature is high than this;
Described low temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under than the low temperature of the 1st temperature and discharge the high temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under the temperature more than the 2nd temperature, and described the 2nd temperature is more than above-mentioned the 1st temperature;
Above-mentioned high-temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and suck the high temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, and described the 4th temperature is more than above-mentioned the 3rd temperature;
Above-mentioned chilled(cooling) water return (CWR) also has:
The supply passageway that connects the suction inlet of the cooling water outlet of above-mentioned engine and above-mentioned low temperature valve;
Connect the low temperature mouth of above-mentioned low temperature valve and above-mentioned engine the cooling water suction inlet first reclaim path;
The Waste Heat Recovery path that connects the low temperature mouth of the high temperature mouth of this low temperature valve and above-mentioned high-temperature valve, above-mentioned waste heat recoverer is arranged in this Waste Heat Recovery path, the supply port of this waste heat recoverer is connected with the high temperature mouth of above-mentioned low temperature valve, and the outlet of this waste heat recoverer is connected with the low temperature mouth of above-mentioned high-temperature valve;
Connect the radiator path of the high temperature mouth of the high temperature mouth of this low temperature valve and this high-temperature valve, above-mentioned radiator is arranged in this radiator path; And
Connect the outlet of this high-temperature valve and the second recovery path of this first recovery path,
Above-mentioned shunting circuit constitutes with the outlet that is connected this waste heat recoverer and this first second bypass of reclaiming any one party in path and this second recovery path with first bypass of the supply port of this waste heat recoverer by connecting this supply passageway.
5. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, above-mentioned chilled(cooling) water return (CWR) have radiator and under the specific high temperature that specific low temperature is high than this high-temperature valve of switch valve,
Above-mentioned low temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under than the low temperature of the 1st temperature and discharge the high temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under the temperature more than the 2nd temperature, described the 2nd temperature is more than above-mentioned the 1st temperature
Above-mentioned high-temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and discharge the high temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, and described the 4th temperature is more than above-mentioned the 3rd temperature;
Above-mentioned chilled(cooling) water return (CWR) also has:
First supply passageway that connects the suction inlet of the cooling water outlet of above-mentioned engine and above-mentioned high-temperature valve;
Second supply passageway that connects the suction inlet of the low temperature mouth of this high-temperature valve and this low temperature valve;
Connect the low temperature mouth of this low temperature valve and this engine the cooling water suction inlet first reclaim path;
Connect the high temperature mouth of this low temperature valve and the Waste Heat Recovery path of this first recovery path, above-mentioned waste heat recoverer is arranged in the Waste Heat Recovery path, and the supply port of this waste heat recoverer is connected with the high temperature mouth of this low temperature valve; And
Connect the high temperature mouth of this high-temperature valve and the radiator path of this first recovery path, above-mentioned radiator is arranged in this radiator path;
Above-mentioned shunting circuit is the bypass that connects the supply port of this first supply passageway and this waste heat recoverer.
6. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, above-mentioned chilled(cooling) water return (CWR) have radiator and under the specific high temperature that specific low temperature is high than this high-temperature valve of switch valve,
Above-mentioned low temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from above-mentioned outlet under than the low temperature of the 1st temperature and suck the high temperature mouth of whole cooling waters of discharging from above-mentioned outlet under the temperature more than the 2nd temperature, described the 2nd temperature is more than above-mentioned the 1st temperature
Above-mentioned high-temperature valve possess the suction inlet that sucks cooling water and discharge under the low temperature than the 3rd temperature the low temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve, with under the temperature more than the 4th temperature, discharge from the high temperature mouth of whole cooling waters of the suction inlet suction of above-mentioned high-temperature valve, described the 3rd temperature is higher than the 2nd temperature, described the 4th temperature is more than above-mentioned the 3rd temperature
Above-mentioned chilled(cooling) water return (CWR) also has:
First supply passageway that connects the suction inlet of the cooling water outlet of above-mentioned engine and above-mentioned high-temperature valve;
Second supply passageway that connects the low temperature mouth of the low temperature mouth of this high-temperature valve and this low temperature valve;
Connect the outlet of this low temperature valve and this engine the cooling water suction inlet first reclaim path;
The Waste Heat Recovery path that connects the high temperature mouth of this second supply passageway and this low temperature valve, above-mentioned waste heat recoverer are arranged in this Waste Heat Recovery path; And
Connect the radiator path of the high temperature mouth of the high temperature mouth of this high-temperature valve and this low temperature valve, above-mentioned radiator is arranged in this radiator path;
Above-mentioned shunting circuit constitutes with this Waste Heat Recovery path that is connected this waste heat recoverer downstream and this first second bypass of reclaiming path with first bypass of this second supply passageway by connecting this first supply passageway.
7. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, and above-mentioned chilled(cooling) water return (CWR) has radiator and high-temperature valve of switch valve under the specific high temperature that specific low temperature is high than this;
Above-mentioned low temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from above-mentioned outlet under than the low temperature of the 1st temperature and suck the high temperature mouth of whole cooling waters of discharging from above-mentioned outlet under the temperature more than the 2nd temperature, described the 2nd temperature is more than above-mentioned the 1st temperature
Above-mentioned high-temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and suck the high temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, described the 4th temperature is more than above-mentioned the 3rd temperature
Above-mentioned chilled(cooling) water return (CWR) also has:
The supply passageway that connects the low temperature mouth of the cooling water outlet of above-mentioned engine and above-mentioned low temperature valve;
Connect the outlet of this low temperature valve and this engine the cooling water suction inlet first reclaim path;
The Waste Heat Recovery path that connects the low temperature mouth of this supply passageway and above-mentioned high-temperature valve, above-mentioned waste heat recoverer are arranged in this Waste Heat Recovery path;
The radiator path that connects the high temperature mouth of this supply passageway and this high-temperature valve, above-mentioned radiator are arranged in this radiator path; And
Connect the outlet of this high-temperature valve and this low temperature valve the high temperature mouth second reclaim path,
Above-mentioned shunting circuit is this Waste Heat Recovery path and this first bypass of reclaiming path that connects this waste heat recoverer downstream.
8. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, above-mentioned chilled(cooling) water return (CWR) have radiator and under the specific high temperature that specific low temperature is high than this high-temperature valve of switch valve,
Above-mentioned low temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from above-mentioned outlet under than the low temperature of the 1st temperature and suck the high temperature mouth of whole cooling waters of discharging from above-mentioned outlet under the temperature more than the 2nd temperature, described the 2nd temperature is more than above-mentioned the 1st temperature
Above-mentioned high-temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and discharge the high temperature mouth of the whole cooling waters that suck from the suction inlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, described the 4th temperature is more than above-mentioned the 3rd temperature
Above-mentioned chilled(cooling) water return (CWR) also has:
First supply passageway that connects the low temperature mouth of the cooling water outlet of above-mentioned engine and above-mentioned low temperature valve;
Second supply passageway that connects the suction inlet of above-mentioned first supply passageway and above-mentioned high-temperature valve;
Connect the outlet of this low temperature valve and this engine the cooling water suction inlet first reclaim path;
The Waste Heat Recovery path that connects the high temperature mouth of the low temperature mouth of this high-temperature valve and this low temperature valve, above-mentioned waste heat recoverer be arranged in this Waste Heat Recovery path and
Connect the radiator path of the high temperature mouth of the high temperature mouth of this high-temperature valve and this low temperature valve, above-mentioned radiator is arranged in this radiator path,
Above-mentioned shunting circuit is made of first bypass and second bypass, wherein
Described first bypass is connected between described first supply passageway and the described Waste Heat Recovery path, and the link position of described first bypass and described Waste Heat Recovery path is at the upstream side of described waste heat recoverer;
Described second bypass is connected described Waste Heat Recovery path and described first and reclaims between the path, and the tie point of this second bypass and described Waste Heat Recovery path is positioned at the downstream of described waste heat recoverer.
9. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, above-mentioned chilled(cooling) water return (CWR) have radiator and under the specific high temperature that specific low temperature is high than this high-temperature valve of switch valve,
Above-mentioned low temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from above-mentioned outlet under than the low temperature of the 1st temperature and suck the high temperature mouth of whole cooling waters of discharging from above-mentioned outlet under the temperature more than the 2nd temperature, described the 2nd temperature is more than above-mentioned the 1st temperature
Above-mentioned high-temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and suck the high temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, described the 4th temperature is more than above-mentioned the 3rd temperature
Above-mentioned chilled(cooling) water return (CWR) also has:
The supply passageway that connects the low temperature mouth of the cooling water outlet of above-mentioned engine and above-mentioned low temperature valve;
Connect the outlet of this low temperature valve and above-mentioned high-temperature valve the low temperature mouth second reclaim path;
Connect the outlet of this high-temperature valve and this engine the cooling water suction inlet first reclaim path;
The Waste Heat Recovery path that connects the high temperature mouth of this supply passageway and this low temperature valve, above-mentioned waste heat recoverer are arranged in this Waste Heat Recovery path; And
The radiator path that connects the high temperature mouth of this supply passageway and this high-temperature valve, above-mentioned radiator are arranged in this radiator path,
Above-mentioned shunting circuit is this Waste Heat Recovery path and this first bypass of reclaiming path that connects this waste heat recoverer downstream.
10. water cooling type engine heat pump according to claim 1 and 2 is characterized in that:
Above-mentioned shut-down mechanism is the low temperature valve of switch valve under specific low temperature, above-mentioned chilled(cooling) water return (CWR) have radiator and under the specific high temperature that specific low temperature is high than this high-temperature valve of switch valve,
Above-mentioned low temperature valve possesses the suction inlet that sucks cooling water, discharge the low temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under than the low temperature of the 1st temperature and discharge the high temperature mouth of the whole cooling waters that suck from above-mentioned suction inlet under the temperature more than the 2nd temperature, described the 2nd temperature is more than above-mentioned the 1st temperature
Above-mentioned high-temperature valve possesses the outlet of discharging cooling water, suck the low temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under than the low temperature of the 3rd temperature and suck the high temperature mouth of whole cooling waters of discharging from the outlet of above-mentioned high-temperature valve under the temperature more than the 4th temperature, described the 3rd temperature is higher than the 2nd temperature, described the 4th temperature is more than above-mentioned the 3rd temperature
Above-mentioned chilled(cooling) water return (CWR) also has:
The supply passageway that connects the suction inlet of the cooling water outlet of above-mentioned engine and above-mentioned low temperature valve;
Connect the low temperature mouth of this low temperature valve and this engine the cooling water suction inlet first reclaim path;
Connect the Waste Heat Recovery path of the low temperature mouth of the high temperature mouth of described low temperature valve and described high-temperature valve, above-mentioned waste heat recoverer is arranged in this Waste Heat Recovery path;
The radiator path that connects the high temperature mouth of this supply passageway and this high-temperature valve, above-mentioned radiator are arranged in this radiator path; And
Connect the outlet of this high-temperature valve and the second recovery path of this first recovery path,
Above-mentioned shunting circuit is made of first bypass and second bypass;
This first bypass is connected between described thermal dissipating path and the described Waste Heat Recovery path, and the link position of described first bypass and thermal dissipating path is at the upstream side of described radiator, and the link position of described first bypass and Waste Heat Recovery path is at the upstream side of described waste heat recoverer;
This second bypass is connected between this Waste Heat Recovery path and this first recovery path, and the link position of this second bypass and Waste Heat Recovery path is in the downstream of this waste heat recoverer.
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JP2004003861A (en) * 2003-07-25 2004-01-08 Yanmar Co Ltd Outdoor unit of engine heat pump

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KR20060105498A (en) 2006-10-11
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