CN103673706B - Regenerative apparatus, aircondition and heat accumulation method - Google Patents
Regenerative apparatus, aircondition and heat accumulation method Download PDFInfo
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- CN103673706B CN103673706B CN201310359153.0A CN201310359153A CN103673706B CN 103673706 B CN103673706 B CN 103673706B CN 201310359153 A CN201310359153 A CN 201310359153A CN 103673706 B CN103673706 B CN 103673706B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
- B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/028—Control arrangements therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Conditioning For Vehicles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to regenerative apparatus, aircondition and heat accumulation method, easily can judge that latent heat storage material could supercooling.Possess: the first closed loop making medium one-way circulation; Be arranged at the part in the first loop, between the heat of release heater and medium, carry out the heat exchanger of heat exchange; Be located at the downstream in the first loop, containing and obtain the heat storage tank carrying out the latent heat storage material of heat exchange between the medium of heat that heater releases; Measure the first determination part from the temperature of the medium passed through between heat exchanger and heat storage tank; When target temperature higher than regulation of the temperature of the medium that the first determination part determines, medium is cooled, make from the temperature of the medium passed through between heat exchanger and heat storage tank and the roughly equal cooling end of target temperature; Carry out heat exchange between measurement latent heat storage material and medium and start the measurement unit in the elapsed time to liquid phase phase transformation from solid phase; Judge that can latent heat storage material overcooled detection unit based on the elapsed time.
Description
The application based on the Japan applied on August 28th, 2012 at first patent application 2012-187601 CLAIM OF PRIORITY, and, by quoting, its content whole is comprised in this application.
Technical field
Present embodiment relates to the regenerative apparatus, aircondition and the heat accumulation method that employ latent heat storage material.
Background technology
Be known to a kind of technology accumulating latent heat storage material in order to the warming-up of internal combustion engine, transformer (heater) via the used heat of medium spontaneous hot body in future.If latent heat storage material is applied in heat, then carry out accumulation of heat by becoming liquid phase mutually from solid phase.Even if the latent heat storage material of liquid phase is when its temperature reduces, also become the supercooling state of the state keeping liquid phase former state.The latent heat storage material becoming supercooling state, by being applied in mechanical type and stimulating or voltage etc. and nucleation (nucleate), is phase-changed into solid phase from liquid phase.Now, in the phase change process from solid phase to liquid phase, the heat of accumulation is released.If latent heat storage material remains the part of solid phase in a part when being phase-changed into liquid phase from solid phase, then cause the entirety when the temperature of latent heat storage material reduces to turn back to solid phase, supercooling state cannot be become.Therefore, when using latent heat storage material in order to warming-up, need latent heat storage material to become supercooling state.Therefore, need the stage in accumulation of heat, judge whether latent heat storage material entirety terminates from solid phase to the phase change of liquid phase, namely can latent heat storage material supercooling when the temperature of latent heat storage material reduces.
To this, be known to a kind of temperature based on medium and judge that can latent heat storage material overcooled technology.But, because the temperature of medium progressively changes because of the operational situation of heater, so when such temperature based on medium, be difficult to easily judge that can latent heat storage material supercooling.Wherein, below the document relevant to above-mentioned technology is recorded in, content whole and being contained in the application by reference.
Patent document 1: Japanese Unexamined Patent Publication 2009-236433 publication
Summary of the invention
The invention provides and easily can judge that latent heat storage material could overcooled regenerative apparatus, aircondition and heat accumulation method.
A kind of regenerative apparatus, is the regenerative apparatus via medium, the heat that heater is released being carried out to accumulation of heat, it is characterized in that possessing: the first closed loop, for making described medium one-way circulation; Heat exchanger, is located at the part in described first loop, carries out heat exchange between the heat of release described heater and described medium; Heat storage tank, is located at heat exchanger described in the ratio on described first loop and is close to the downstream in the direction of described medium circulation, containing and the described medium obtaining the heat that described heater is released between carry out the latent heat storage material of heat exchange; First determination part, is determined at the temperature of the described medium passed through between described heat exchanger and described heat storage tank; Cooling end, when the described medium that described first determination part determines temperature higher than regulation target temperature described medium is cooled, make the temperature of the described medium passed through between described heat exchanger and described heat storage tank and described target temperature roughly equal; Measurement unit, measures and carries out heat exchange between described latent heat storage material and described medium and from the elapsed time of solid phase to liquid phase starts phase transformation; And detection unit, judge that can described latent heat storage material supercooling based on the described elapsed time.
A kind of aircondition, be the aircondition possessing above-mentioned regenerative apparatus, it possesses: become nuclear device, make described latent heat storage material nucleation; Second bypass circulation, is connected with described first loop at the second branch point, heat storage tank described in bypass; Second control valve, can described second branch point the stream of described medium switched in described first loop or described second bypass circulation any one; And second control part, be judged to be that described latent heat storage material in overcooled situation, can control the switching of described second control valve, the stream of described medium is switched to described second bypass circulation at described detection unit.
A kind of heat accumulation method, be the heat accumulation method in following regenerative apparatus or aircondition, described regenerative apparatus or aircondition possess: medium; The first closed loop, for making described medium one-way circulation; Heat exchanger, is located at the part in described first loop, carries out heat exchange between the heat of release heater and described medium; And heat storage tank, be located at heat exchanger described in the ratio on described first loop and be close to the downstream in the direction of described medium circulation, containing and the described medium obtaining the heat that described heater is released between carry out the latent heat storage material of heat exchange; The feature of described heat accumulation method is to have: the first step making described medium circulation; Be determined at the second step of the temperature of the described medium passed through between described heat exchanger and described heat storage tank; When target temperature higher than regulation of the temperature of the described medium determined by described second step, described medium is cooled, make the temperature of the described medium passed through between described heat exchanger and described heat storage tank and the roughly equal third step of described target temperature; Measure and carry out heat exchange between described latent heat storage material and described medium and from the 4th step in the elapsed time of solid phase to liquid phase starts phase transformation; And based on the described elapsed time, detection unit judges that can described latent heat storage material overcooled 5th step.
Accompanying drawing explanation
Fig. 1 is the block diagram representing the regenerative apparatus that the first embodiment relates to.
Fig. 2 is the block diagram representing the control device that the first embodiment relates to.
Fig. 3 is the flow chart of the action representing the regenerative apparatus that the first embodiment relates to.
Fig. 4 is the block diagram representing the control device that the first variation relates to.
Fig. 5 A, Fig. 5 B and Fig. 5 C are the examples representing the analog result that the first variation relates to.
Fig. 6 is the block diagram representing the regenerative apparatus that the second variation relates to.
Fig. 7 is the block diagram representing the control device that the second variation relates to.
Fig. 8 is the block diagram representing the regenerative apparatus that the second embodiment relates to.
Fig. 9 A, Fig. 9 B and Fig. 9 C are the examples representing the analog result that the second embodiment relates to.
Figure 10 is the block diagram representing the aircondition that the 3rd embodiment relates to.
Figure 11 is the block diagram representing the control device that the 3rd embodiment relates to.
Figure 12 is the block diagram of the control device representing Fig. 8.
Description of reference numerals:
10 ... heater; 20 ... heat storage tank; 30 ... cooling end; 31 ... radiator; 32 ... fan; 40 ... instruction department; 41 ... first control part; 42 ... measurement unit; 43 ... detection unit; 44 ... inferring portion; 45 ... second control part; 101 ... first loop; 102 ... first bypass circulation; 103 ... first control valve; 111 ... second servo loop; 112 ... second bypass circulation; 113 ... second control valve; 130 ... first determination part; 140 ... second determination part; 150 ... heating part; 160 ... become nuclear device; 170 ... air-conditioning part; 200 ... control device; 300 ... storage device; 400 ... display unit; 1000,1500 ... regenerative apparatus; 2000 ... aircondition.
Detailed description of the invention
The regenerative apparatus of embodiment is the regenerative apparatus via medium, the heat that heater is released being carried out to accumulation of heat, it is characterized in that possessing: the first closed loop, for making described medium one-way circulation; Heat exchanger, is located at the part in described first loop, carries out heat exchange between the heat of release described heater and described medium; Heat storage tank, is located at heat exchanger described in the ratio on described first loop and is close to the downstream in the direction of described medium circulation, containing and the described medium obtaining the heat that described heater is released between carry out the latent heat storage material of heat exchange; First determination part, is determined at the temperature of the described medium passed through between described heat exchanger and described heat storage tank; Cooling end, when the described medium that described first determination part determines temperature higher than regulation target temperature described medium is cooled, make the temperature of the described medium passed through between described heat exchanger and described heat storage tank and described target temperature roughly equal; Measurement unit, measures and carries out heat exchange between described latent heat storage material and described medium and from the elapsed time of solid phase to liquid phase starts phase transformation; And detection unit, judge that can described latent heat storage material supercooling based on the described elapsed time.
The aircondition of embodiment is the aircondition possessing above-mentioned regenerative apparatus, and it possesses: become nuclear device, make described latent heat storage material nucleation; Second bypass circulation, is connected with described first loop at the second branch point, heat storage tank described in bypass; Second control valve, can described second branch point the stream of described medium switched in described first loop or described second bypass circulation any one; And second control part, be judged to be that described latent heat storage material in overcooled situation, can control the switching of described second control valve, the stream of described medium is switched to described second bypass circulation at described detection unit.
The heat accumulation method of embodiment is the heat accumulation method in following regenerative apparatus or aircondition, and described regenerative apparatus or aircondition possess: medium; The first closed loop, for making described medium one-way circulation; Heat exchanger, is located at the part in described first loop, carries out heat exchange between the heat of release heater and described medium; And heat storage tank, be located at heat exchanger described in the ratio on described first loop and be close to the downstream in the direction of described medium circulation, containing and the described medium obtaining the heat that described heater is released between carry out the latent heat storage material of heat exchange; The feature of described heat accumulation method is to have: the first step making described medium circulation; Be determined at the second step of the temperature of the described medium passed through between described heat exchanger and described heat storage tank; When target temperature higher than regulation of the temperature of the described medium determined by described second step, described medium is cooled, make the temperature of the described medium passed through between described heat exchanger and described heat storage tank and the roughly equal third step of described target temperature; Measure and carry out heat exchange between described latent heat storage material and described medium and from the 4th step in the elapsed time of solid phase to liquid phase starts phase transformation; And based on the described elapsed time, detection unit judges that can described latent heat storage material overcooled 5th step.
Based on above-mentioned technical scheme, provide and easily can judge that latent heat storage material could overcooled regenerative apparatus, aircondition and heat accumulation method.
Below, be described for an embodiment.
(the first embodiment)
Fig. 1 is the block diagram representing the regenerative apparatus that the first embodiment relates to.In the present embodiment, regenerative apparatus such as can have battery, motor, inverter, control their electronic control unit (Electronic Control Unit in addition; Etc. ECU) electric automobile (Electric Vehicle; Use in aircondition in the car of EV) (hereinafter referred to as vehicle).Such as, regenerative apparatus is set near the motor of electric automobile with aircondition or inverter.Being accumulated to regenerative apparatus in advance by the heat (used heat) of will release from motor or inverter etc., when needing the warm-operation carrying out aircondition, the heat that this regenerative apparatus is accumulated can be utilized.
The regenerative apparatus 1000 of Fig. 1 possesses the first loop 101.The medium of heat exchange circulates in this first loop 101.Medium is liquid or the gas that can be conducted through the heat that heat exchange obtains, and such as uses water in the present embodiment.In addition, possess between the heat of heater 10 releasing allowing to running (heating) and do not operate (not generating heat) and medium and carry out heat exchange, carry out the heat exchanger 15 medium being given to heat; And comprise the heat storage tank 20 of latent heat storage material 25, this latent heat storage material 25 and and heater 10 carried out heat exchange after medium between carry out heat exchange, and from medium accept heat.Here, heater 10 are batteries, motor, inverter etc. produce in vehicle heat equipment.In addition, possess the mode roughly becoming target temperature according to the temperature of medium and carry out the cooling end 30 adjusted and the first determination part 130 that the temperature by the medium before heat storage tank 20 is measured.
First loop 101 is pipes heat exchanger 15, heat storage tank 20, cooling end 30 being connected into ring-type, and medium circulates in the tube.That is, be connected between heat exchanger 15 with heat storage tank 20, between heat storage tank 20 with cooling end 30, between cooling end 30 with heat exchanger 15 in FIG.Wherein, in order to carry out the heat exchange between medium and heater 10 and between medium and latent heat storage material 25, preferably the first loop 101 is the metal material (such as copper) that heat conductivity is outstanding in the part of carrying out heat exchange.In addition, in order to suppress the heat release from tube-surface, part in addition can use heat resistance outstanding and the resin component etc. that thermal insulation is outstanding.
Medium by successively through over-heat-exchanger 15, heat storage tank 20, cooling end 30 and repeatedly with heater 10, heat storage tank 20 heat exchange and circulating in the first loop 101.That is, the medium that have passed through cooling end 30 by circulation in the first loop 101 through over-heat-exchanger 15.Medium is by drivings such as not shown pumps.
Latent heat storage material 25 is can the phase transformation between solid phase and liquid phase based on heat exchange, and can obtain the material of supercooling state in the liquid phase.In addition, be input by being endowed impact or voltage applying etc. when supercooling state and nucleation and be phase-changed into the material of solid phase.In the present embodiment, such as hydrated sodium acetate is used.
Heater 10 such as connects with heat exchanger 15 and arranges near heat exchanger 15.The heat of externally releasing because of running during vehicle operation is given to the medium of circulation in the first loop 101 by heater 10 via heat exchanger 15.
Heat storage tank 20 is the downstream of the heat exchanger 15 being arranged on the first loop 101 and accommodates the container of latent heat storage material 25.Here, downstream with the media flow direction in the first loop 101 for benchmark defines.The pipe (not shown) of the inside of through container is connected with the first loop 101 by heat storage tank 20.For heat storage tank 20, the medium after having carried out heat exchange with heater 10 from managing through out-of-date, latent heat storage material 25 carrys out the heat of accepting medium by heat exchange.Wherein, here using the part of the pipe of the inside of through container as the first loop 101.That is, the first loop 101 is passed through in the inside of heat storage tank 20.
Cooling end 30 possesses radiator (radiator) 31 and the fan 32 opposed with this radiator 31.Radiator 31 is connected with the first loop 101.Radiator 31 accepts heat from the medium of the inside process at radiator 31, cools medium by this heat externally being released.Fan 32 produces air stream by rotating towards radiator 31, cools radiator 31.Controlled the rotating speed of fan 32 by the first control part 41 described later, adjust fan 32 and produce and the air quantity blowing to the air stream of radiator 31.Therefore, blow to the air quantity of the air stream of radiator 31 by adjustment, carry out cooling and reduce the surface temperature of radiator 31, thus the medium that the inside at radiator 31 is passed through cooled and reduces temperature.
In addition, cooling end 30 possesses the first bypass circulation 102 and the first control valve 103.First bypass circulation 102 by being connected with the first loop 101 via the first control valve 103 at branch point A place, and is connected with the first loop 101 at branch point B place, carrys out bypass radiator 31.The stream being arrived the medium of the first control valve 103 by the first loop 101 is switched to any one in the first loop 101 and the first bypass circulation 102 by the first control valve 103.Here, the stream of medium being switched (or maintain) is that the first loop 101 state is defined as " the first control valve: OFF ", and the stream of medium being switched (or maintenance) is that the state of the first bypass circulation 102 is defined as " the first control valve: ON ".
First determination part 130 is located at the temperature sensor between heat exchanger 15 and heat storage tank 20.The temperature (hereinafter referred to as first temperature) of the first determination part 130 to the medium passed through between heat exchanger 15 and heat storage tank 20 measures.That is, to measure after receiving heat by the heat exchange with heater 10 and the first temperature of medium before giving heat by the heat exchange with latent heat storage material 25 to latent heat storage material 25.
In addition, the regenerative apparatus 1000 of Fig. 1 possesses control device 200, storage device 300.Wherein, use the arithmetic processing apparatus such as CPU or MPU as control device 200.In addition, use the recording medium such as memory or HDD as storage device 300.
Fig. 2 is the block diagram of the control device 200 representing Fig. 1.
The control device 200 of Fig. 2 have the running of heater 10 is controlled instruction department 40, when the first temperature is higher than target temperature controlled cooling model portion 30 in case the first control part 41 that medium is cooled, the measurement unit 42 starting to measure from the elapsed time of solid phase to liquid phase phase transformation to latent heat storage material 25, elapsed time of measuring based on measurement unit 42 judge that detection unit 43 that whether latent heat storage material 25 terminate to the phase transformation of liquid phase is as logic module.
Instruction department 40 controls based on the running of instruction to heater 10 of the driver from steering vehicle.That is, ON, OFF of the running of heater 10 is controlled.The running of heater 10 is controlling as ON is to the warm controlling to send for accumulating heater 10 during OFF from instruction department 40 by regenerative apparatus 1000.
First temperature of the medium that the first determination part 130 determines by the first control part 41 and target temperature compare, and control the rotating speed of fan 32, indirectly control the air quantity blowing to the air stream of radiator 31.In addition, the first control part 41 controls the switching of ON, OFF of the first control valve 103.Here, target temperature is stored in by predetermining in storage device 300.Wherein, as target temperature, be can more than the fusing point of latent heat storage material 25 and form vehicle equipment (semiconductor element of such as inverter) heat resisting temperature below scope determine steady state value.
Such as, the first control valve 103, when the first temperature of medium is lower than target temperature, is switched to ON by the first control part 41.Now, passed through and bypass radiator 31 from the first bypass circulation 102 by medium.Obtain heat because of not cooled from heater 10 from the medium of the first loop 101 process, temperature constantly rises.On the other hand, when the first temperature of medium with target temperature be benchmark converge in prescribed limit, according to the first temperature of medium and the difference of desired value, adopt that P controls, PI controls, PID controls the rotating speed that scheduling algorithm controls fan 32.By in advance in storage device 300 rotating speed of the first temperature of storage medium and the difference of desired value and fan 32 establish the table of corresponding relation, the first control part 41 can control the rotating speed of fan 32 with reference to this table.
Measurement unit 42 is before the running of heater 10 is controlled to OFF by instruction department 40, and measurement latent heat storage material 25 and the medium of the first temperature carry out heat exchange and start from the elapsed time of solid phase to liquid phase phase transformation.Now, such as by experiment or simulation etc., the latent heat storage material 25 that investigation in advance comprises with heat storage tank 20 with kind and the latent heat storage material 25 of same volume from solid phase to the heat (hereinafter referred to as the first heat) required for liquid phase phase transformation, and to be stored in storage device 300.And, the heat (hereinafter referred to as the second heat) given latent heat storage material 25 inferred by the time resume of the first temperature of the medium measured based on the first determination part 130, and the moment second heat of inferring being reached the first heat stored by storage device 300 is as from solid phase to the start time of liquid phase phase transformation.Measurement unit 42 measured the elapsed time from this start time.
The elapsed time that measurement unit 42 measures by detection unit 43, flat with latent heat storage material 25 during from solid phase to liquid phase phase transformation time and the medium of target temperature compare to the time (very first time) till liquid phase changes to end mutually from solid phase when carrying out heat exchange.Detection unit 43, when the elapsed time is more than the very first time, is judged to be that latent heat storage material 25 terminates to the phase transformation of liquid phase.That is, being judged to be can supercooling.On the other hand, when the elapsed time is shorter than the very first time, be judged to be that latent heat storage material 25 does not terminate to the phase transformation of liquid phase.That is, being judged to be can not supercooling.Wherein, the running of heater 10 such as controls as the timing of OFF judges at instruction department 40 by detection unit 43.Result of determination is stored in storage device 300 by detection unit 43.
Wherein, as the above-mentioned very first time, such as by experiment or simulation etc., the same kind of latent heat storage material 25 that investigation in advance comprises with heat storage tank 20 and the latent heat storage material 25 of same volume carry out heat exchange with the medium of target temperature during from solid phase to liquid phase phase transformation at ordinary times, to the very first time till liquid phase changes to end mutually from solid phase, and be stored in advance in storage device 300.That is, with this very first time for benchmark, when the medium heat of latent heat storage material 25 and the first temperature have exchanged more than the very first time, deducibility have accumulated to the enough heats required for the complete phase transformation of liquid phase for latent heat storage material 25.
Display unit 400, when the running of heater 10 controls as ON based on the instruction from driver by instruction department 40, with reference to the result of determination that storage device 300 stores, and shows this result of determination.That is, driver can the heat storage state of identification decision result, i.e. latent heat storage material 25 thus.
Fig. 3 is the flow chart of the action representing regenerative apparatus 1000.Wherein, the action the state being solid phase from latent heat storage material 25 is illustrated here.
In step 1001, the running of heater 10 controls as ON according to the instruction of driver by instruction unit 40.
In step 1002, the first determination part 130 measures the first temperature of medium.
In step 1003, the first control part 41 controlled cooling model portion 30, when the first temperature is higher than target temperature, cools the temperature of medium.In addition, when the first temperature is lower than target temperature, do not cool, the heat based on heater 10 makes the temperature of medium rise.Thus, the temperature being adjusted to medium is approximate becomes target temperature.Wherein, now medium temperature can not with target temperature strict conformance, as long as such as pre-determine admissible scope, and be adjusted to and be converged within the scope of this.As admissible scope, the scope of such as preferably target temperature ± 2 DEG C.Or, if be benchmark with absolute temperature, and represent with the ratio relative to target temperature, be then preferably ± the scope of 1%.
As lasted till, in step 1006 described later, the running of heater 10 controls as till OFF the action case of this step 1002 and step 1003 by instruction department 40.
When in step 1004, when latent heat storage material 25 starts phase transformation, in step 1005, measurement unit 42 starts to measure the elapsed time from this moment.
In step 1006, when driver finishes the running of vehicle, the running of heater 10 controls as OFF according to the instruction (such as disconnecting the action of ignition switch) from driver by instruction unit 40.
In step 1007, measurement unit 42 terminates the mensuration in elapsed time.As the timing terminating to measure, can be and step 1006 timing simultaneously, the timing after also can being step 1006 when considering the waste heat of heater 10.
In step 1008, when during from solid phase to liquid phase phase transformation, when latent heat storage material 25 is flat and when the medium of target temperature carries out heat exchange, obtain to the very first time (threshold value) till liquid phase changes to end mutually from solid phase from storage device 300, and this threshold value and elapsed time are compared.
In step 1009, when the elapsed time is more than threshold value, detection unit 43 is judged to be that latent heat storage material 25 can supercooling, such as, this result of determination be recorded in storage device 300 with judgement simultaneously.
In step 1010, when the elapsed time is less than threshold value, detection unit 43 is judged to be that latent heat storage material 25 can not supercooling, such as, this result of determination be recorded in storage device 300 with judgement simultaneously.
In step 1011, when driver starts the running of vehicle, the running of heater 10 controls as ON according to the instruction (such as by the action of ignition switch connection) from driver by instruction unit 40.
In step 1012, display unit 400 shows the result of determination stored in storage device 300.
Regenerative apparatus 1000 according to the present embodiment, owing to carrying out the temperature constant of the medium of heat exchange between latent heat storage material, the temperature difference of the temperature of medium and the fusing point of latent heat storage material and the thermal conductivity between medium and latent heat storage material become constant, so the temperature of medium can be removed from parameter when judging, only can judge whether latent heat storage material 25 can supercooling simply based on this simple index of elapsed time.
In addition, in order to by making the temperature of the medium before heat storage tank 20 be stationary temperature, and make latent heat storage material 25 during phase transformation, accumulation of heat can be carried out with constant hot amount of movement (heat storage capacity), by carrying out the experiment or simulation etc. under identical conditions in advance, set the first temperature (threshold value) simply.
Wherein, be motor at heater 10, such as, when there is the water jacket of the inside of through motor, this water jacket can be connected with the first loop 101.Now, when medium passes through in water jacket, the heat of externally releasing is given to medium by heat exchange by heater 10.In this situation, using water jacket as heat exchanger 15.
(the first variation)
Fig. 4 is the block diagram representing the control device 200 that the first variation relates to.In this variation, control device 200 is to have inferring portion 44 as logic module with the difference of the control device 200 of Fig. 2.
In the elapsed time that inferring portion 44 measures based on measurement unit 42, infer that latent heat storage material 25 carries out heat exchange with the medium of target temperature and from solid phase, starts the inferred value of the amount of stored heat accumulated to liquid phase phase transformation.The difference of the fusing point of the first temperature that inferring portion 44 is such as determined by accumulative first determination part 130 and latent heat storage material infers amount of stored heat.
The inferred value of the amount of stored heat that inferring portion 44 is inferred by detection unit 43, with during from solid phase to liquid phase phase transformation, to compare to the maximum of the amount of stored heat can accumulated till liquid phase changes to end mutually from solid phase when carrying out heat exchange when latent heat storage material 25 is flat with the medium of target temperature.When the inferred value of amount of stored heat is more than the maximum of amount of stored heat, detection unit 43 is judged to be that latent heat storage material 25 terminates to the phase transformation of liquid phase.That is, being judged to be can supercooling.On the other hand, when the inferred value of amount of stored heat is less than the maximum of amount of stored heat, detection unit 43 is judged to be that latent heat storage material 25 does not terminate to the phase transformation of liquid phase.That is, being judged to be can not supercooling.Result of determination is stored in storage device 300 by detection unit 43.
Wherein, as the maximum of above-mentioned amount of stored heat, such as by experiment or simulation etc., investigate in advance in the same kind of latent heat storage material 25 comprised with heat storage tank 20 and the latent heat storage material 25 of same volume from solid phase to liquid phase phase transformation during, when carrying out heat exchange with the medium of target temperature at ordinary times, to the maximum of the amount of stored heat can accumulated till liquid phase changes to end mutually from solid phase, and be stored in storage device 300.
Fig. 5 A, Fig. 5 B and Fig. 5 C are examples of the analog result for being described the effect of regenerative apparatus 1000.As shown in Figure 5A, the situation from moment T1 to the first temperature constant of the medium of moment T2 is considered.In addition, as shown in Figure 5 B, latent heat storage material 25 starts, from solid phase to liquid phase phase transformation, to terminate phase transformation at moment T2 at moment T1.
Now, Fig. 5 C illustrates from moment T1 to moment T2, by the time resume of medium to the hot amount of movement of latent heat storage material 25 movement.
According to this variation, in order to the temperature constant by making the medium before heat storage tank 20, and make latent heat storage material 25 during phase transformation, accumulation of heat can be carried out with constant hot amount of movement, by carrying out the experiment or simulation etc. under identical conditions in advance, set the maximum of amount of stored heat simply.In addition, except this simple index of elapsed time, the temperature of medium after can adjusting based on cooling end 30, the temperature of namely constant medium judge that can latent heat storage material 25 supercooling simply.
(the second variation)
Fig. 6 is the block diagram representing the regenerative apparatus 1000 that the second variation relates to.In addition, Fig. 7 is the block diagram representing the control device 200 that the second variation relates to.In this variation, be with the difference of the regenerative apparatus 1000 of Fig. 1, regenerative apparatus 1000 possesses heating part 150.In addition, be with the difference of the control device 200 of Fig. 2, control device 200 possesses inferring portion 44.
In the elapsed time that inferring portion 44 measures based on measurement unit 42, infer that latent heat storage material 25 carries out heat exchange with the medium of target temperature and the inferred value that starts from solid phase amount of stored heat of accumulation to liquid phase phase transformation.In addition, be judged to be that latent heat storage material 25 can not in overcooled situation at detection unit 43, inferring portion 44 to calculate when to carry out heat exchange at ordinary times with the medium of target temperature during latent heat storage material 25 is from solid phase to liquid phase phase transformation from solid phase to the maximum of the amount of stored heat can accumulated till liquid phase changes to end mutually, the difference (Japanese original text: difference) of carrying out the inferred value of the amount of stored heat in the moment judged with detection unit 43.
The heater that heating part 150 is arranged near heat storage tank 20.The heat that the difference that 150 pairs, heating part latent heat storage material 25 is given and inferring portion 44 calculates is suitable.
When 150 pairs, heating part latent heat storage material 25 imparts the heat suitable with difference, detection unit 43 is judged to be that latent heat storage material 25 can supercooling.Result of determination is stored in storage device 300 by detection unit 43.
According to this variation, though when heater 10 running stop when, latent heat storage material 25 be not in can overcooled state when, also it can be made to become liquid phase completely mutually by giving enough heats.That is, can become can overcooled state.
In addition, here the example be located near heat-storing material 20 heating part 150 is illustrated, but also can adopts such as by arranging heat medium in the part in the first loop 101, and indirectly latent heat storage material 25 is given to the formation of heat.
(the second embodiment)
Fig. 8 is the block diagram representing the regenerative apparatus 1500 that the second embodiment relates to.In addition, Figure 12 is the block diagram of the control device representing Fig. 8.In the present embodiment, be with the difference of the regenerative apparatus 1000 of Fig. 1, regenerative apparatus 1500 possesses the second determination part 140.
Second determination part 140 is located at the temperature sensor between heat storage tank 20 and cooling end 30.Second determination part 140 measures the temperature (hereinafter referred to as the second temperature) of the medium among the medium that passes through from the first loop 101 after heat storage tank 20 and before cooling end 30.That is, the second temperature of the medium before after giving heat by heat exchange to latent heat storage material 25 and cooled portion 30 cools and reduces temperature is measured.
Measurement unit 42 becomes to the second temperature that the second determination part 140 determines the elapsed time that the constant moment rises and measures.That is, the second temperature of the medium after heat storage tank 20 can be similar to the temperature being considered as latent heat storage material 25.Therefore, can be considered as the moment that latent heat storage material 25 starts from solid phase to liquid phase phase transformation the moment of the second temperature constant.
Wherein, here constant refers to that the absolute value of the rate of change (K/s) of the second temperature is converged in below the threshold value that predetermines.That is, measurement unit 42 can measure reach from the absolute value of the rate of change (K/s) of the second temperature the threshold value predetermined at first moment elapsed time.
Fig. 9 A, Fig. 9 B and Fig. 9 C are examples of the analog result for being described the effect of regenerative apparatus 1500.As shown in Figure 9 A, the situation from moment T1 to the first temperature constant of the medium of moment T2 is considered.In addition, as shown in Figure 9 B, latent heat storage material 25 starts, from solid phase to liquid phase phase transformation, to terminate phase transformation at moment T2 at moment T1.
Now, Fig. 9 C represents the absolute value of the rate of change of the second temperature.It can thus be appreciated that, phase transformation from latent heat storage material 25 moment T1 to terminate phase transformation moment T2 during, the absolute value of the rate of change of the second temperature is converged in threshold value (such as 0.001) below.
Regenerative apparatus 1500 according to the present embodiment, measuring the second temperature of the medium close with the temperature of latent heat storage material 25 by directly not measuring the temperature of latent heat storage material 25, latent heat storage material 25 timing to liquid phase phase transformation from solid phase can be grasped accurately based on this second temperature.Thereby, it is possible to based on the elapsed time judges that can latent heat storage material 25 supercooling accurately more accurately.
(the 3rd embodiment)
Figure 10 is the block diagram representing the aircondition 2000 that the 3rd embodiment relates to.In addition, Figure 11 is the block diagram of the control device 200 representing Figure 10.The aircondition 2000 of Figure 10 possesses the regenerative apparatus 1000 of Fig. 1.Its detailed description is omitted by giving identical Reference numeral to the formation identical with the regenerative apparatus 1000 of Fig. 1 and the control device 200 of Fig. 2.
The aircondition 2000 of Figure 10 possesses into nuclear device 160, second bypass circulation 112, second control valve 113.In addition, possess and air-conditioning part 170, heat storage tank 20 are connected into ring-type with air-conditioning part 170, for the second servo loop 111 by medium.The control device 200 of Figure 11 has the second control part 45 as logic module.
Becoming nuclear device 160 to be for by giving the triggerings such as impact or voltage applying to latent heat storage material 25, making the device of latent heat storage material 25 nucleation.Becoming the action of nuclear device 160 to be stored as at storage device 300 can in overcooled situation, and the instruction based on the driver from steering vehicle is controlled by instruction department 40.
Second bypass circulation 112 by being connected with the first loop 101 via the second control valve 113 at branch point C place, and is connected with the first loop 101 at branch point D place, carrys out bypass heat storage tank 20.
The stream arriving the medium of the second control valve 113 through the first loop 101 is switched to any one in the first loop 101 and the second bypass circulation 112 by the second control valve 113.Here, the stream of medium being switched (or maintain) is that the state in the first loop 101 is defined as " the second control valve: OFF ", and the stream of medium being switched (or maintenance) is that the state of the second bypass circulation 112 is defined as " the second control valve: ON ".
Air themperature in air-conditioning part 170 pairs of cars or humidity adjust.Here, as air-conditioning part 170, adopt the general heat pump mode possessing compressor, condenser, evaporimeter etc., omit this detailed description.
The switching of the second control valve 113, controls as ON the timing becoming nuclear device 160 to control at instruction department 40 by the second control part 45.Thus, the heat due to the latent heat storage material 25 of being released heat by nucleation does not pass to the medium in the first loop 101, so can transmit heat efficiently to the medium of second servo loop 111.
In addition, as air-conditioning part 170, second servo loop 111 also can be the seat or steering wheel etc. of through inside.In this situation, directly can heat seat or steering wheel etc. by the high-temperature medium of second servo loop.
According to regenerative apparatus, aircondition, heat accumulation method that at least one embodiment described above relates to, can judge that can latent heat storage material supercooling accurately.
These embodiments just illustrate, and are not intended to limit scope of invention.These embodiments can be implemented by other various modes, can carry out various omission, displacement, change in the scope not departing from inventive concept.These embodiments and distortion thereof are included in scope of invention and purport, are included in the invention described in claim and equivalent scope thereof simultaneously.
Claims (16)
1. a regenerative apparatus, is the regenerative apparatus via medium, the heat that heater is released being carried out to accumulation of heat, it is characterized in that possessing:
The first closed loop, for making described medium one-way circulation;
Heat exchanger, is located at the part in described first loop, carries out heat exchange between the heat of release described heater and described medium;
Heat storage tank, is located at heat exchanger described in the ratio on described first loop and is close to the downstream in the direction of described medium circulation, containing and the described medium obtaining the heat that described heater is released between carry out the latent heat storage material of heat exchange;
First determination part, is determined at the temperature of the described medium passed through between described heat exchanger and described heat storage tank;
Cooling end, when the described medium that described first determination part determines temperature higher than regulation target temperature described medium is cooled, make the temperature of the described medium passed through between described heat exchanger and described heat storage tank and described target temperature roughly equal;
Measurement unit, measures and carries out heat exchange between described latent heat storage material and described medium and from the elapsed time of solid phase to liquid phase starts phase transformation; And
Based on the described elapsed time, detection unit, judges that can described latent heat storage material supercooling.
2. regenerative apparatus according to claim 1, is characterized in that,
Possess storage part, this storage part store described latent heat storage material carries out heat exchange between the medium of described target temperature from described change to end mutually till the very first time,
The described very first time and described elapsed time compare by described detection unit, judge that can described latent heat storage material supercooling.
3. regenerative apparatus according to claim 1, is characterized in that, possesses:
Storage part, store described latent heat storage material carries out heat exchange between the medium of described target temperature from described change to end mutually till the first amount of stored heat that can accumulate; And
Inferring portion, the temperature of the described medium using described first determination part to determine and described elapsed time, infers the inferred value of described latent heat storage material amount of stored heat of accumulation from the described phase transformation of beginning,
The inferred value of described first amount of stored heat and described amount of stored heat compares by described detection unit, judges that can described latent heat storage material supercooling.
4. regenerative apparatus according to claim 1, is characterized in that,
Possess the second determination part, this second determination part measures the second temperature of the described medium after passing through from described heat storage tank,
The described elapsed time of measurement unit measurement from described second temperature becomes the constant moment.
5. regenerative apparatus according to claim 1, is characterized in that,
Also possess the heating part of described latent heat storage material being given to heat,
Be judged to be that described latent heat storage material can not in overcooled situation at described detection unit, described heating part is heated described latent heat storage material or described medium.
6. regenerative apparatus according to claim 1, is characterized in that,
Described cooling end comprises and described first loop-coupled radiator and the fan opposed with described radiator,
Described regenerative apparatus possesses the first control part controlled the rotating speed of described fan.
7. regenerative apparatus according to claim 1, is characterized in that,
Described cooling end comprises: be connected with described first loop at the first branch point, the first bypass circulation of bypass radiator; With first control valve that at described first branch point, the stream of described medium can be switched to any one loop in described first loop or described first bypass circulation,
Described regenerative apparatus possesses the first control part controlled the switching of described first control valve.
8. regenerative apparatus according to claim 1, is characterized in that,
Described heater be in motor, inverter, battery at least any one.
9. an aircondition, is characterized in that, possesses regenerative apparatus according to claim 1, and this aircondition possesses:
Become nuclear device, make described latent heat storage material nucleation;
Second bypass circulation, is connected with described first loop at the second branch point, heat storage tank described in bypass;
Second control valve, can described second branch point the stream of described medium switched in described first loop or described second bypass circulation any one; And
At described detection unit, second control part, is judged to be that described latent heat storage material in overcooled situation, can control the switching of described second control valve, the stream of described medium is switched to described second bypass circulation.
10. a heat accumulation method, be the heat accumulation method in following regenerative apparatus or aircondition, described regenerative apparatus or aircondition possess: medium; The first closed loop, for making described medium one-way circulation; Heat exchanger, is located at the part in described first loop, carries out heat exchange between the heat of release heater and described medium; And heat storage tank, be located at heat exchanger described in the ratio on described first loop and be close to the downstream in the direction of described medium circulation, containing and the described medium obtaining the heat that described heater is released between carry out the latent heat storage material of heat exchange;
The feature of described heat accumulation method is to have:
Make the first step of described medium circulation;
Be determined at the second step of the temperature of the described medium passed through between described heat exchanger and described heat storage tank;
When target temperature higher than regulation of the temperature of the described medium determined by described second step, described medium is cooled, make the temperature of the described medium passed through between described heat exchanger and described heat storage tank and the roughly equal third step of described target temperature;
Measure and carry out heat exchange between described latent heat storage material and described medium and from the 4th step in the elapsed time of solid phase to liquid phase starts phase transformation; And
Based on the described elapsed time, detection unit judges that can described latent heat storage material overcooled 5th step.
11. heat accumulation methods according to claim 10, is characterized in that,
Store described latent heat storage material carries out heat exchange between the medium of described target temperature from described change to end mutually till the very first time,
The described very first time and described elapsed time are compared, judges that can described latent heat storage material supercooling.
12. heat accumulation methods according to claim 10, is characterized in that,
Store described latent heat storage material carries out heat exchange between the medium of described target temperature from described change to end mutually till the first amount of stored heat that can accumulate,
Use the temperature of the described medium determined and described elapsed time, infer the inferred value of described latent heat storage material amount of stored heat of accumulation from the described phase transformation of beginning,
The inferred value of described first amount of stored heat and described amount of stored heat is compared, judges that can described latent heat storage material supercooling.
13. heat accumulation methods according to claim 10, is characterized in that,
Measure the second temperature of the described medium after passing through from described heat storage tank,
The elapsed time of measurement from described second temperature becomes the constant moment.
14. heat accumulation methods according to claim 10, is characterized in that,
Be judged to be that described latent heat storage material can not in overcooled situation, the heating part of described latent heat storage material being given to heat is heated described latent heat storage material or described medium.
15. heat accumulation methods according to claim 10, is characterized in that,
Control the rotating speed of the fan opposed with radiator, this radiator is connected with described first loop.
16. heat accumulation methods according to claim 10, is characterized in that,
The switching of the first control valve is controlled, described first control valve can the first branch point the stream of described medium switched in described first loop or the first bypass circulation any one, described first bypass circulation is connected and bypass radiator with described first loop at described first branch point.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012187601A JP5771168B2 (en) | 2012-08-28 | 2012-08-28 | Heat storage device, air conditioner and heat storage method |
| JP2012-187601 | 2012-08-28 |
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| CN103673706A CN103673706A (en) | 2014-03-26 |
| CN103673706B true CN103673706B (en) | 2015-09-23 |
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| US (1) | US20140060794A1 (en) |
| JP (1) | JP5771168B2 (en) |
| CN (1) | CN103673706B (en) |
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| EP2680434B1 (en) * | 2011-02-25 | 2020-09-30 | NTN Corporation | Electric automobile |
| US9781860B2 (en) * | 2011-12-30 | 2017-10-03 | Danfoss Power Electronics A/S | Cooling method for devices generating waste heat |
| JP2014178082A (en) * | 2013-03-15 | 2014-09-25 | Toshiba Corp | Cooling device and cooling method |
| JP5740443B2 (en) * | 2013-09-11 | 2015-06-24 | 株式会社東芝 | Transmission system |
| JP6244553B2 (en) * | 2014-03-18 | 2017-12-13 | パナソニックＩｐマネジメント株式会社 | Heat storage device and hot water generator provided with the same |
| CN106574709A (en) * | 2014-09-05 | 2017-04-19 | 博格华纳公司 | Heat exchanger and storage device for cold vehicle startup with regenerative capability |
| JP6293625B2 (en) * | 2014-09-11 | 2018-03-14 | 株式会社東芝 | Radio transmission system |
| KR101597309B1 (en) * | 2015-10-05 | 2016-02-24 | 주식회사 티이애플리케이션 | Heat storage system and heat storage method |
| JP6723266B2 (en) * | 2015-12-25 | 2020-07-15 | シャープ株式会社 | Heat storage material, refrigerator and cold storage container using the same |
| JP6687588B2 (en) * | 2017-12-19 | 2020-04-22 | ファナック株式会社 | Motor drive device and motor drive system |
| CN108224845B (en) * | 2017-12-21 | 2021-01-08 | 青岛海尔空调电子有限公司 | Heat storage air conditioning system and control method |
| JP7059062B2 (en) * | 2018-03-22 | 2022-04-25 | 株式会社東芝 | Heat storage material temperature detector and heat storage device |
| CN108621832A (en) * | 2018-04-18 | 2018-10-09 | 合肥工业大学 | A kind of electric vehicle integrated heat management system based on phase-change material |
| DE102018121390A1 (en) * | 2018-09-03 | 2020-03-05 | Hanon Systems | Thermal management arrangement for vehicles and method for operating a thermal management arrangement |
| JP7245131B2 (en) * | 2019-07-16 | 2023-03-23 | 株式会社日本クライメイトシステムズ | Vehicle heat storage system |
| US11326840B2 (en) * | 2020-04-13 | 2022-05-10 | Rocky Research | Cooling system with thermal storage |
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| US20140060794A1 (en) | 2014-03-06 |
| CN103673706A (en) | 2014-03-26 |
| JP2014043203A (en) | 2014-03-13 |
| JP5771168B2 (en) | 2015-08-26 |
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