CN102782423A - Refrigeration cycle device - Google Patents
Refrigeration cycle device Download PDFInfo
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- CN102782423A CN102782423A CN201080065064XA CN201080065064A CN102782423A CN 102782423 A CN102782423 A CN 102782423A CN 201080065064X A CN201080065064X A CN 201080065064XA CN 201080065064 A CN201080065064 A CN 201080065064A CN 102782423 A CN102782423 A CN 102782423A
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- heat
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- heat supply
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- supply running
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- 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
- F25B2400/05—Compression system with heat exchange between particular parts of the system
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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
- 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
- F25B2400/24—Storage receiver heat
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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
- F25B2600/00—Control issues
- F25B2600/01—Timing
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/15—Power, e.g. by voltage or current
- F25B2700/151—Power, e.g. by voltage or current of the compressor motor
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2111—Temperatures of a heat storage receiver
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
A refrigeration cycle device having a compressor (6), an indoor heat exchanger (16), an expansion valve (12), and an outdoor heat exchanger (14), which are connected through refrigerant piping, is provided with a heat storage device for storing heat generated by the compressor (6). The refrigeration cycle device is also provided with a controller which switches the operation of the device from first heating operation to second heating operation, the first heating operation being operation which, when the temperature of a heat storage material (36) contained in a heat storage tank (32) is lower than or equal to a predetermined temperature, causes the refrigerant discharged from the compressor (6) to pass through the indoor heat exchanger (16), the expansion valve (12), and the outdoor heat exchanger (14), the second heating operation being operation which, when the temperature of the heat storage material (36) exceeds the predetermined temperature, causes the refrigerant discharged from the compressor (6) to pass through the indoor heat exchanger (16) and a heat storage heat exchanger (34).
Description
Technical field
The present invention relates to a kind of refrigerating circulatory device that has the heat storage tank of taking in the heat-storing material of accumulating the heat that compressor produces and carry out the accumulation of heat heat exchanger of heat exchange through the accumulation of heat of heat-storing material.
Background technology
In the prior art, when air conditioner of heat pump type carries out the heat supply running, under the situation of outdoor heat converter frosting, cross valve is switched to defrost to the cooling circulation from the heat supply circulation.In this Defrost mode,, exist owing to emitting the shortcoming that cold air loses the heat supply sense gradually from indoor set though indoor fan stops.
So, proposed in being arranged at the compressor of off-premises station, regenerative apparatus to be set, be utilized in the technology (for example, with reference to patent documentation 1) that the compressor used heat that is stored in heat storage tank in the heat supply running defrosts.
Fig. 7 has represented to adopt an example of the refrigerating circulatory device of such Defrost mode; Its indoor heat converter 108 that will be arranged at compressor 100, cross valve 102, outdoor heat converter 104 and the capillary (capillary tube) 106 of off-premises station through refrigerant piping and be arranged at indoor set is connected; And be provided with first bypass circulation 110 that capillary 106 is carried out bypass (bypass); Be connected in from the discharge side of compressor 100 pipe arrangement with an end, and the other end is connected in from second bypass circulation 112 of the pipe arrangement of capillary 106 to outdoor heat converter 104 via cross valve 102 to indoor heat converter 108.In addition, be provided with two-port valve 114, check valve 116 and accumulation of heat heat exchanger 118, be provided with two-port valve 120 and check valve 122 at second bypass circulation 112 at first bypass circulation 110.
And, around compressor 100, be provided with heat storage tank 124, be useful on the heat-storing material 126 that carries out heat exchange with accumulation of heat heat exchanger 118 at the inner filling of heat storage tank 124.
In this kind of refrigeration cycle, defrosting when running, two two-port valves 114,120 are opened, and make the part of the cold-producing medium of discharging from compressor 100 flow to second bypass circulation 112, make remaining refrigerant flow direction cross valve 102 and indoor heat converter 108.In addition; After the cold-producing medium that flows through indoor heat converter 108 is used as heat supply, make few cold-producing medium flow to outdoor heat converter 104, on the other hand through capillary 106; Make remaining most of cold-producing medium flow into first bypass circulation 110; Flow into accumulation of heat heat exchanger 118 and absorb heat through two-port valve 114, after check valve 116, flow to outdoor heat converter 104 with the cold-producing medium that has passed through capillary 106 by heat-storing material 126.Afterwards, at the cold-producing medium interflow of the inlet of outdoor heat converter 104 and second bypass circulation 112 of flowing through, the heat of utilizing cold-producing medium to keep defrosts, and then through after the cross valve 102, is inhaled into compressor 100.
In this refrigerating circulatory device; Through second bypass circulation 112 is set; And when defrosting, will import to outdoor heat converter 104 from the hot gas that compressor 100 is discharged; And can guarantee to flow into the high pressure of the cold-producing medium of outdoor heat converter 104,, can accomplish defrosting in the extremely short time so can improve the defrosting ability.
Present technical literature
Patent documentation
Patent documentation 1: japanese kokai publication hei 3-31666 communique
Summary of the invention
The problem that invention will solve
In patent documentation 1 described kind of refrigeration cycle, under the situation that the common heat supply of the running that do not defrost is turned round, close two two-port valves 114,120, through the running of compressor 100, in heat-storing material 126, its temperature is risen heat storage.
But,, can cause that then rotten (the for example oxidation) of heat-storing material 126 self and the moisture of heat-storing material 126 seethe with excitement, and might make heat-storing material 126 deteriorations if the excessive temperature of heat-storing material 126 rises.
The present invention makes in view of such problem points that prior art had, and purpose is to provide a kind of refrigerating circulatory device that can prevent to accumulate the heat-storing material deterioration of the heat that compressor produces.
Be used to solve the method for problem
In order to reach above-mentioned purpose, refrigerating circulatory device of the present invention has: via compressor, indoor heat converter, expansion valve and the outdoor heat converter of refrigerant piping connection; And regenerative apparatus; This regenerative apparatus has the heat storage tank that the heat-storing material of the heat of accumulating the compressor generation is taken in; Accumulation of heat heat exchanger with heat exchange is carried out in the accumulation of heat that utilizes heat-storing material also has controller, and this controller switches to second heat supply running with first heat supply running; Wherein to operate at the temperature of heat-storing material be under the situation below the set point of temperature in first heat supply, makes the cold-producing medium of discharging from compressor through indoor heat converter, expansion valve and outdoor heat converter; The temperature that second heat supply operates at heat-storing material surpasses under the situation of set point of temperature, makes the cold-producing medium of discharging from compressor pass through indoor heat converter and accumulation of heat heat exchanger.
The invention effect
According to the present invention, in first heat supply running, use compressor, indoor heat converter, expansion valve and outdoor heat converter,, in the heat-storing material of regenerative apparatus, accumulate the heat that compressor produces therebetween.When the temperature of heat-storing material surpassed set point of temperature, controller switched to second heat supply running of having used the accumulation of heat heat exchanger, and in second heat supply running, the accumulation of heat heat exchanger utilizes the accumulation of heat of heat-storing material to carry out heat exchange, reduces the temperature of heat-storing material thus.Through the control of such controller, can prevent the excessive high temperature of heat-storing material, can also prevent water evaporates, so can prevent the deterioration of heat-storing material.
Description of drawings
Fig. 1 is the sketch map of structure that expression has the air conditioner of regenerative apparatus of the present invention.
The sketch map of the air conditioner of Fig. 2 presentation graphs 1 flow direction of action and the cold-producing medium of (during first heat supply running) when common heat supply.
Action when Fig. 3 is defrosting, the heat supply of the air conditioner of presentation graphs 1 and the sketch map that flows of cold-producing medium.
The sketch map of the action when second heat supply of the air conditioner of Fig. 4 presentation graphs 1 is turned round and the flow direction of cold-producing medium.
Fig. 5 representes the variation of first heat supply running and the switching controls of second heat supply running, and the sequential chart (timing chart) of the on-off action of the magnetic valve that the refrigerant piping of accumulation of heat heat exchanger is provided with is led in expression from the refrigerant piping branch of connection indoor heat converter and expansion valve.
Fig. 6 is the key diagram that when rising, the temperature of heat-storing material is set at when descending the situation of different temperature in order to open and close magnetic valve.
Fig. 7 representes the sketch map of structure of the refrigerating circulatory device of prior art.
The specific embodiment
Refrigerating circulatory device of the present invention has: via compressor, indoor heat converter, expansion valve and the outdoor heat converter of refrigerant piping connection; And regenerative apparatus; This regenerative apparatus has the heat storage tank that the heat-storing material of the heat of accumulating the compressor generation is taken in; Accumulation of heat heat exchanger with heat exchange is carried out in the accumulation of heat that utilizes said heat-storing material also has controller, and this controller switches to second heat supply running with first heat supply running; Wherein to operate at the temperature of heat-storing material be under the situation below the set point of temperature in first heat supply, makes the cold-producing medium of discharging from compressor through indoor heat converter, expansion valve and outdoor heat converter; The temperature that second heat supply operates at heat-storing material surpasses under the situation of set point of temperature, makes the cold-producing medium of discharging from compressor pass through indoor heat converter and accumulation of heat heat exchanger.
According to the present invention, can carry out from the switching of first heat supply running to second heat supply running.In first heat supply running, the heat storage that compressor is produced is in heat-storing material, and on the other hand, in second heat supply running, the accumulation of heat heat exchanger utilizes the accumulation of heat of heat-storing material to carry out heat exchange, reduces the temperature of heat-storing material thus.Thus, can prevent the excessive high temperature of heat-storing material, can also prevent water evaporates, so can prevent the deterioration of heat-storing material.
Particularly; From the refrigerant piping branch that connects indoor heat converter and expansion valve and lead on the refrigerant piping of accumulation of heat heat exchanger; Also has the magnetic valve that opens and closes based on the control signal of coming self-controller; Controller carries out from the switching of first heat supply running to second heat supply running through opening magnetic valve.
Preferred controller carries out open and close controlling to magnetic valve, makes that magnetic valve is in open mode in first stipulated time in second heat supply running, and magnetic valve is in closed condition in second stipulated time afterwards.At this, second stipulated time is typically long than above-mentioned first stipulated time.Thus, can use the magnetic valve of large-size to keep desired heat supply running.
The open mode of first stipulated time of magnetic valve and the closed condition of second stipulated time as one-period, are carried out the open and close controlling specified period of magnetic valve repeatedly.Thus, can make the temperature of heat-storing material drop to the temperature that does not cause the heat-storing material deterioration.
In addition; The cooling operation device for example also has the heat-storing material temperature sensor of the temperature that detects above-mentioned heat-storing material; Above-mentioned controller switches to above-mentioned second heat supply running based on the detected temperature of above-mentioned heat-storing material temperature sensor from above-mentioned first heat supply running.
As another example, the cooling operation device also has the compressor temperature sensor of the temperature that detects above-mentioned compressor, and above-mentioned controller switches to above-mentioned second heat supply running based on the detected temperature of above-mentioned compressor temperature sensor from above-mentioned first heat supply running.
As an other example; The cooling operation device also has the discharging refrigerant temperature sensor of detection from the temperature of the cold-producing medium of above-mentioned compressor discharge; Above-mentioned controller switches to above-mentioned second heat supply running based on the detected temperature of above-mentioned discharging refrigerant temperature sensor from above-mentioned first heat supply running.
As an other example; The cooling operation device also has the heat storage tank temperature sensor of the temperature that detects above-mentioned heat storage tank itself; Above-mentioned controller switches to above-mentioned second heat supply running based on the detected temperature of above-mentioned heat storage tank temperature sensor from above-mentioned first heat supply running.
As an other example; The cooling operation device also has the revolution electric current sensor of the revolution electric current that detects above-mentioned compressor; Above-mentioned controller switches to above-mentioned second heat supply running based on the revolution electric current of the detected above-mentioned compressor of above-mentioned revolution electric current sensor from above-mentioned first heat supply running.
In addition, the operating frequency of the above-mentioned compressor in preferred above-mentioned second heat supply running is lower than the operating frequency of the above-mentioned compressor in above-mentioned first heat supply running.
In addition; Preferably under with the situation of afore mentioned rules temperature as first set point of temperature; When the temperature of above-mentioned heat-storing material in above-mentioned second heat supply running dropped to than low second set point of temperature of above-mentioned first set point of temperature, above-mentioned controller switched to above-mentioned first heat supply running.Like this, make first set point of temperature and second set point of temperature have the temperature difference, can prevent to switch continually each other first heat supply running and second heat supply running.
In addition; Refrigerating circulatory device also has at least the timer that can carry out timing to the elapsed time that switches to after above-mentioned second heat supply running; When the elapsed time of above-mentioned timer instrumentation reached preset time in above-mentioned second heat supply running, above-mentioned controller switched to above-mentioned first heat supply running.
Below, with reference to accompanying drawing embodiment of the present invention is described.
Fig. 1 representes the structure as the air conditioner of refrigerating circulatory device of the present invention, and air conditioner is by constituting with indoor set 4 through refrigerant piping off-premises station 2 connected to one another.
As shown in Figure 1; Set inside at off-premises station 2 has compressor 6, cross valve 8, filter 10, expansion valve 12 and outdoor heat converter 14; Set inside at indoor set 4 has indoor heat exchanger 16, and they interconnect via refrigerant piping, constitute kind of refrigeration cycle thus.
Further be described in detail, compressor 6 is connected via first pipe arrangement 18 that is provided with cross valve 8 with indoor heat converter 16, and indoor heat converter 16 is connected via second pipe arrangement 20 that is provided with filter 10 with expansion valve 12.In addition, expansion valve 12 is connected via the 3rd pipe arrangement 22 with outdoor heat converter 14, and outdoor heat converter 14 is connected via the 4th pipe arrangement 24 with compressor 6.
Pars intermedia at the 4th pipe arrangement 24 disposes cross valve 8, and the 4th pipe arrangement 24 in the cold-producing medium suction side of compressor 6 is provided with the storage heater 26 that is used to separate liquid phase refrigerant and vapor phase refrigerant.In addition, compressor 6 is connected via the 5th pipe arrangement 28 with the 3rd pipe arrangement 22, is provided with first magnetic valve 30 at the 5th pipe arrangement 28.
In addition; Around compressor 6, be provided with heat storage tank 32; Set inside at heat storage tank 32 has accumulation of heat heat exchanger 34; And be filled with the heat-storing material (for example, glycol water) 36 that is used for carrying out heat exchange, constitute regenerative apparatus by heat storage tank 32, accumulation of heat heat exchanger 34 and heat-storing material 36 with accumulation of heat heat exchanger 34.
In addition, second pipe arrangement 20 is connected via the 6th pipe arrangement 38 with accumulation of heat heat exchanger 34, and accumulation of heat heat exchanger 34 is connected via the 7th pipe arrangement 40 with the 4th pipe arrangement 24, is provided with second magnetic valve 42 at the 6th pipe arrangement 38.
Inside at indoor set 4; Except being provided with indoor heat converter 16; Also be provided with Air Blast fan (not shown), blade (not shown) and left and right sides blade (not shown) up and down; Indoor heat converter 16 utilizes Air Blast fan and is inhaled into the heat exchange of cold-producing medium of room air and the inside of the indoor heat converter 16 of flowing through of the inside of indoor set 4; When heat supply, will blow out to indoor, on the other hand, when cooling, will blow out to indoor by cooled air through heat exchange through the heated air of heat exchange.Blade changes the direction of the air that blows out from indoor set 4 as required up and down up and down, left and right sides blade as required about the direction of the air that blows out from indoor set 4 of change.
In addition; Compressor 6, Air Blast fan, blade, left and right sides blade, cross valve 8, expansion valve 12, magnetic valve 30,42 etc. and controller 48 be (with reference to Fig. 4 up and down; Microcomputer for example) is electrically connected;, and two magnetic valves 30,42 are opened and closed to compressor 6, Air Blast fan, the running or the action of blade, left and right sides blade, cross valve 8 and expansion valve 12 are controlled up and down based on the control signal of coming self-controller 48 based on the control signal of coming self-controller 48.
In the refrigerating circulatory device of the present invention of said structure, the situation during for heat run is an example, in conjunction with the interconnected relationship and the function of mobile each parts of explanation of cold-producing medium.
Cold-producing medium from the outlet of compressor 6 is discharged arrives indoor heat converter 16 through first pipe arrangement 18 from cross valve 8.In indoor heat converter 16, carry out heat exchange with room air and condensed refrigerant is come out from indoor heat converter 16, through second pipe arrangement 20, the filter 10 through preventing that foreign matter from invading to expansion valve 12 arrives expansion valve 12 again.Arrive outdoor heat converter 14 at expansion valve 12 post-decompression cold-producing mediums through the 3rd pipe arrangement 22; The cold-producing medium that in outdoor heat converter 14, carries out heat exchange with outdoor air and evaporate returns the suction inlet of compressor 6 through the 4th pipe arrangement 24, cross valve 8 and storage heater 26.
In addition, the 5th pipe arrangement 28 from branch between compressor 6 outlets of first pipe arrangement 18 and the cross valve 8 collaborates via first magnetic valve 30 between the expansion valve 12 and outdoor heat converter 14 of the 3rd pipe arrangement 22.
In addition; The heat storage tank 32 of taking in heat-storing material 36 and accumulation of heat heat exchanger 34 in inside is configured to contact and surrounds compressor 6; The heat storage that will produce at compressor 6 is in heat-storing material 36, from the 6th pipe arrangement 38 of second pipe arrangement 20 branch between indoor heat converter 16 and filter 10, via the inlet of second magnetic valve, 42 arrival accumulation of heat heat exchangers 34; From the 7th pipe arrangement 40 that the outlet of accumulation of heat heat exchanger 34 is come out, collaborate between the cross valve 8 and storage heater 26 in the 4th pipe arrangement 24.
Then, the action during with reference to the common heat supply that schematically shows air conditioner shown in Figure 1 and mobile Fig. 2 of cold-producing medium, the action during to common heat supply describes.
When heat supply was turned round usually, first magnetic valve 30 and second magnetic valve 42 were closed, and as above-mentioned, the cold-producing medium of discharging from the outlet of compressor 6 reaches indoor heat converter 16 through first pipe arrangement 18 from cross valve 8.In indoor heat converter 16, carry out heat exchange and condensed refrigerant with room air; Come out and pass through second pipe arrangement 20 to arrive expansion valves 12 from indoor heat converter 16, post-decompression cold-producing medium arrives outdoor heat converters 14 through the 3rd pipe arrangement 22 in expansion valve 12.The cold-producing medium that in outdoor heat converter 14, carries out heat exchange with outdoor air and evaporate turns back to the suction inlet of compressor 6 from cross valve 8 through the 4th pipe arrangement 24.
In addition, the heat that in compressor 6, produces is accumulated in the heat-storing material 36 of the inside that is accommodated in heat storage tank 32 via the outer wall of heat storage tank 32 from the outer wall of compressor 6.
Then, the action during with reference to the defrosting that schematically shows air conditioner shown in Figure 1, heat supply and Fig. 3 that flows of cold-producing medium, the action during to defrosting, heat supply describes.Among the figure, solid arrow representes to be used for the flowing of cold-producing medium of heat supply, the flowing of the cold-producing medium that dotted arrow is represented to be used to defrost.
In above-mentioned common heat supply running, if frosting on outdoor heat converter 14, and the frost of forming growth, then the flowing resistance of outdoor heat converter 14 increases and the air quantity minimizing, and the evaporating temperatures in the outdoor heat converter 14 reduce.As shown in Figure 3; At air conditioner as refrigerating circulatory device of the present invention; Be provided with the pipe arrangement temperature sensor 44 of the pipe arrangement temperature of sensing chamber's outer heat-exchanger 14; If low when detecting evaporating temperature than frost-free, then switch to the indication of defrosting, heat supply running from common heat supply running by controller 48 outputs by pipe arrangement temperature sensor 44.
When being transformed into defrosting, heat supply running from common heat supply; Control first magnetic valve 30 and second magnetic valve 42 is opened it; The flowing of cold-producing medium during except above-mentioned common heat supply running; The part of the vapor phase refrigerant of discharging from the outlet of compressor 6 is through the 5th pipe arrangement 28 and first magnetic valve 30, collaborates heating clamber outer heat-exchanger 14 with cold-producing medium through the 3rd pipe arrangement 22; Condensation and after the liquid phaseization turns back to the suction inlet of compressor 6 via cross valve 8 and storage heater 26 through the 4th pipe arrangement 24.
In addition; The part of the liquid phase refrigerant of shunting between indoor heat converter 16 in second pipe arrangement 20 and the filter 10; Through the 6th pipe arrangement 38 and second magnetic valve 42; In accumulation of heat heat exchanger 34, evaporate, after the gas phaseization,, turn back to the suction inlet of compressor 6 from storage heater 26 through the 7th pipe arrangement 40 and cold-producing medium interflow through the 4th pipe arrangement 24 from heat-storing material 36 heat absorption.
In the cold-producing medium that returns storage heater 26; Contain the liquid phase refrigerant that returns from outdoor heat converter 14; But through mixing the vapor phase refrigerant of the high temperature that returns from accumulation of heat heat exchanger 34 therein; Impel the liquid phase refrigerant evaporation, liquid phase refrigerant does not return compressor 6 through storage heater 26, can realize the raising of the reliability of compressor 6.
Defrosting, when heat supply begins because the white temperature that becomes outdoor heat converter below freezing 14 of adhering to; By the vapor phase refrigerant heating of discharging from the outlet of compressor 6; Frost melts near zero degree, and when melting of frost finished, the temperature of outdoor heat converter 14 began to rise once more.Rise if pipe arrangement temperature sensor 44 detects the temperature of this outdoor heat converter 14, then be judged as and accomplish defrosting, switch to the indication of common heat supply running by controller 48 outputs from defrosting, heat supply running.
The switching controls of＜the first heat supply running and second heat supply running＞
At this; Be directed to common heat supply running shown in Figure 2, under the situation that the common heat supply of the running that do not defrost is turned round, under with two magnetic valves, 30,42 closing state, make compressor 6 runnings; The heat that compressor 6 produces is accumulated in heat-storing material 36, so its temperature rises slowly.
But; If the excessive temperature of heat-storing material 36 rises; Cause that then rotten (the for example oxidation) of heat-storing material 36 self and the moisture of heat-storing material 36 seethe with excitement, and might make heat-storing material 36 deteriorations, so in the present invention; By the switching controls that controller 48 carries out first heat supply running and second heat supply running of following explanation, prevent the deterioration of heat-storing material 36.
Particularly; Because first heat supply operates as common heat supply running shown in Figure 2; When heat supply is turned round usually, first magnetic valve 30 and second magnetic valve 42 are closed, so the cold-producing medium of discharging from compressor 6 turns back to compressor 6 through indoor heat converter 16, expansion valve 12 and outdoor heat converter 14.At this moment, because second magnetic valve 42 cuts out, so cold-producing medium does not flow through accumulation of heat heat exchanger 34, the temperature of heat-storing material 36 that is accommodated in heat storage tank 32 is because of the rising that blows slowly of the heat in compressor 6 generations.
On the other hand, second heat supply operates as heat supply running shown in Figure 4, and when second heat supply was turned round, first magnetic valve 30 cut out, and therewith relatively, second magnetic valve 42 is opened.The cold-producing medium of therefore, discharging from compressor 6 turns back to compressor 6 through indoor heat converter 16 and accumulation of heat heat exchanger 34.At this moment, the cold-producing medium of the accumulation of heat heat exchanger 34 of flowing through carries out heat exchange because of heat supply at indoor heat converter 16, and its temperature descends, so because recovery is accumulated in the heat of heat-storing material 36, the temperature that is accommodated in the heat-storing material 36 of heat storage tank 32 descends slowly.
In the present invention, be provided with the heat-storing material temperature sensor 46 of the temperature that detects heat-storing material 36,, control second magnetic valves 42 and take the circumstances into consideration to select first heat supply running and second heat supply running by controller 48 based on the detected temperatures of heat-storing material temperature sensor 46.Particularly; The detected temperatures of heat-storing material temperature sensor 46 be below the set point of temperature (for example 90 ℃) during; Carry out first heat supply running and make heat-storing material 36 accumulation of heats, on the other hand, when the detected temperatures of heat-storing material temperature sensor 46 surpasses the afore mentioned rules temperature; Switch to second heat supply running from first heat supply running, reduce the temperature of heat-storing material 36 thus.
In addition, in the present invention, set point of temperature is set at 90 ℃, this is boiling point and the temperature selected of considering the moisture of heat-storing material 36.
As described above, according to the present invention, in first heat supply running, use compressor 6, indoor heat converter 16, expansion valve 12 and outdoor heat converter 14,, accumulate the heat that compressor 6 produces therebetween at the heat-storing material 36 of regenerative apparatus.When the temperature of heat-storing material 36 surpasses set point of temperature; Controller 48 switches to second heat supply running of having used accumulation of heat heat exchanger 34; In second heat supply running; Accumulation of heat heat exchanger 34 will be through inside the heat of cold-producing medium exchange with accumulating in the heat of heat-storing material 36, reduce the temperature of heat-storing material 36 thus.Through the control of such controller 48, can prevent heat-storing material 36 excessive high temperature, and then can prevent water evaporates.Thus, can prevent the deterioration of heat-storing material 36.
In addition, in above-mentioned second heat supply running, compressor 6 operating frequencys are reduced.Thus, the temperature of heat-storing material 36 reduces quickly.
The variation of＜switching controls＞
Fig. 5 representes the variation of above-mentioned switching controls; Detected temperatures at heat-storing material temperature sensor 46 is under the situation below the set point of temperature; Carry out and above-mentioned first same heat supply running; On the other hand, when the detected temperatures of heat-storing material temperature sensor 46 surpasses set point of temperature, follow second heat supply running of the switching of second magnetic valve 42.
Further detail; When first heat supply running of second magnetic valve, 42 closing state; When the detected temperatures of heat-storing material temperature sensor 46 surpasses above-mentioned set point of temperature; Switch to second heat supply running,, at first open second magnetic valve 42 in first stipulated time (about 1 second) through reducing the operating frequency of compressor 6 and give control signal by controller 48.And, after through first stipulated time,, close second magnetic valve 42 in second stipulated time (about 20 seconds) through giving control signal by controller 48.
At this,, then in second heat supply running, make the switching of second magnetic valve 42 for example carry out 10 cycles if with the one-period that adds up to of first stipulated time and second stipulated time.In this variation, to carry out second heat supply running these 10 cycle times.But, in second heat supply running, can select any period switching of second magnetic valve 42 repeatedly as one sees fit.
In addition, first and second stipulated times depended primarily on the size of second magnetic valve 42, and common preferred second stipulated time is longer than first stipulated time, for example, first stipulated time is set at 1 second, and second stipulated time was set at 20 seconds.In this case, if second heat supply running and first heat supply are turned round 10 cycles repeatedly, the switching controls of then carrying out second heat supply running and first heat supply running is carried out the switching to first heat supply running after 210 seconds.In this case, the number of times of the ON in 48 pairs of control signals of controller is counted, and when ON number reaches 10 times, carries out the switching to first heat supply running.In addition, alternatively, controller 48 also can be built-in with the timer 481 that the time is counted, and when after switching to second heat supply running, counting down to 210 seconds, carries out the switching to first heat supply running.In addition, also can be before 10 cycles repeatedly, when the detected temperatures of heat-storing material temperature sensor 46 reaches set point of temperature when following, carry out the switching of remaining in operation to first heat supply running.
In addition, as shown in Figure 6, the detected temperatures of the heat-storing material temperature sensor 46 through when the temperature of heat-storing material 36 rises, will being used to open and close second magnetic valve 42 when descending is set at different temperature, can prevent the frequent switching of second magnetic valve 42 repeatedly.
In example shown in Figure 6; Set first set point of temperature (for example 90 ℃) and low second set point of temperature (for example 85 ℃) than first set point of temperature; Temperature at heat-storing material 36 is under the situation below first set point of temperature second magnetic valve 42 to be remained on closed condition; When the temperature of heat-storing material 36 surpasses first set point of temperature, second magnetic valve 42 is opened control, on the other hand; When the temperature of heat-storing material 36 becomes second set point of temperature when following, second magnetic valve 42 is carried out closing control.
And; Can also substitute and be used for the heat-storing material temperature sensor 46 that the temperature according to heat-storing material 36 opens and closes second magnetic valve 42, use the temperature that detects compressor 6 the compressor temperature sensor, detect the temperature of the cold-producing medium of discharging from compressor 6 the discharging refrigerant temperature sensor, detect heat storage tank 32 self temperature the heat storage tank temperature sensor, detect the revolution electric current sensor etc. of the revolution electric current of compressor 6.
This is based on following reason.
The compressor temperature sensor: the temperature of the temperature of compressor 6 and heat-storing material 36 is closely related, if the temperature height of the compressor 6 then temperature of heat-storing material 36 is also high.
The discharging refrigerant temperature sensor: the temperature of the cold-producing medium of discharging from compressor 6 and the temperature of heat-storing material 36 are closely related, if the temperature height of discharging refrigerant then the temperature of heat-storing material 36 is also high.
The heat storage tank temperature sensor: the temperature of heat storage tank 32 also be basically with the temperature correlation of heat-storing material 36, if the temperature of heat storage tank 32 is high, then the temperature of heat-storing material 36 is also high.
The revolution electric current sensor: the temperature of heat-storing material 36 is also high if the revolution electric current of compressor 6 is big.
In addition; Under the situation that substitutes heat-storing material temperature sensor 46 use compressor temperature sensors, discharging refrigerant temperature sensor, heat storage tank temperature sensor; Also as shown in Figure 6; Preferably, prevent the frequent switching of second magnetic valve 42 repeatedly through when temperature rises, being set at different temperature when descending.
In addition, substituting under the situation of revolution electric current sensor that heat-storing material temperature sensor 46 uses the revolution electric current that detects compressors 6, is that rated current is when following at the detection electric current of revolution electric current sensor; Carry out first heat supply running; Make heat-storing material 36 accumulation of heats, on the other hand, when the detection electric current of revolution electric current sensor surpasses rated current; Switch to second heat supply running from first heat supply running, with heat-storing material 36 coolings.
Perhaps, also can be when first heat supply running of second magnetic valve, 42 closing state, when the detection electric current of revolution electric current sensor surpasses rated current; Reduce the operating frequency of compressor 6 and second magnetic valve 42 is opened control, move to second heat supply running, turned round for first stipulated time in continuation second heat supply; And then after through first stipulated time; Second magnetic valve 42 is carried out closing control, switch to first heat supply running (wherein, keeping the state of the operating frequency that has reduced compressor 6) from second heat supply running; Turned round for second stipulated time in continuation first heat supply, make its stipulated number (for example 10 cycles) repeatedly.
And, same with the situation of using all temps sensor, preferably, prevent the frequently switching of second magnetic valve 42 repeatedly through being set at different electric currents when descending when the rising of revolution electric current.
In addition, in above-mentioned embodiment (also comprising variation), carry out the switching controls of first heat supply running and second heat supply running based on the testing result of various sensors.In addition, particularly explained, also can carry out based on the timing result of timer 481 from the switching controls of second heat supply running to first heat supply running.The switching of carrying out according to the timing result of timer 481 also can be based on following thinking.
That is, in case the composition and the amount of decision heat-storing material 36, then the temperature of heat-storing material 36 time till this set point of temperature from reaching more than the set point of temperature to be lower than once more can be carried out supposition to a certain degree.In addition,, need to switch to second heat supply running from first heat supply running accurately, still, do not have too many requirement to the switching precision of first heat supply running from second heat supply running in order to reach the boiling this purpose that prevents heat-storing material.In the present invention; Because the composition of heat-storing material 36 and amount do not change, obtain after heat-storing material 36 reaches the time of set point of temperature and reaching set point of temperature after compressor 6 runnings to the time that positively reaches below the set point of temperature so can wait through experiment in advance.And, controller 48 can reach moment more than the set point of temperature with this time set of trying to achieve in timer 481, when reaching the time (time out), carry out supplying the switching controls of running to first heat supply running from second heat supply.In addition;, heat-storing material 36 temperature are set with under the situation of temperature difference when descending when rising; In case the composition and the amount of decision heat-storing material; Then after reaching first set point of temperature (for example 90 ℃) shown in Figure 6, determined basically to the time that turns back to second set point of temperature (for example 85 ℃).
Utilize possibility on the industry
Refrigerating circulatory device of the present invention owing to can prevent is accumulated the deterioration of the heat-storing material of the heat that compressor produces, so be useful to air conditioner, refrigerator, water heater, heat-pump-type washing machine etc.
The reference numeral explanation
2 off-premises stations
4 indoor sets
6 compressors
8 cross valves
10 filters
12 expansion valves
14 outdoor heat converters
16 indoor heat converters
18 first pipe arrangements
20 second pipe arrangements
22 the 3rd pipe arrangements
24 the 4th pipe arrangements
26 storage heaters
28 the 5th pipe arrangements
30 first magnetic valves
32 heat storage tanks
34 accumulation of heat heat exchangers
36 heat-storing materials
38 the 6th pipe arrangements
40 the 7th pipe arrangements
42 second magnetic valves
44 pipe arrangement temperature sensors
46 heat-storing material temperature sensors
48 controllers
481 timers
Claims (13)
1. refrigerating circulatory device, it has: the compressor, indoor heat converter, expansion valve and the outdoor heat converter that connect via refrigerant piping; And regenerative apparatus, this regenerative apparatus has the accumulation of heat heat exchanger that the heat storage tank that the heat-storing material of accumulating the heat that said compressor produces is taken in and the accumulation of heat that utilizes said heat-storing material are carried out heat exchange, and this refrigerating circulatory device is characterised in that:
Also has controller; This controller switches to second heat supply running with first heat supply running; The temperature that wherein said first heat supply operates at said heat-storing material is under the situation below the set point of temperature, makes the cold-producing medium of discharging from said compressor pass through said indoor heat converter, said expansion valve and said outdoor heat converter; The temperature that said second heat supply operates at said heat-storing material surpasses under the situation of said set point of temperature, makes the cold-producing medium of discharging from said compressor through said indoor heat converter and said accumulation of heat heat exchanger.
2. the refrigerating circulatory device of stating like claim 1 is characterized in that:
From the refrigerant piping branch that connects said indoor heat converter and said expansion valve and lead on the refrigerant piping of said accumulation of heat heat exchanger, also have the magnetic valve that opens and closes based on control signal from said controller,
Said controller carries out from the switching of said first heat supply running to said second heat supply running through opening said magnetic valve.
3. refrigerating circulatory device as claimed in claim 2 is characterized in that:
Said controller carries out open and close controlling to said magnetic valve, makes that said magnetic valve is in open mode in first stipulated time in said second heat supply running, and said afterwards magnetic valve is in closed condition in second stipulated time.
4. refrigerating circulatory device as claimed in claim 3 is characterized in that:
Said second stipulated time is longer than said first stipulated time.
5. refrigerating circulatory device as claimed in claim 3 is characterized in that:
The open mode of said first stipulated time of said magnetic valve and the closed condition of said second stipulated time as one-period, are carried out the open and close controlling specified period of said magnetic valve repeatedly.
6. refrigerating circulatory device as claimed in claim 1 is characterized in that:
The heat-storing material temperature sensor that also has the temperature that detects said heat-storing material, said controller switch to said second heat supply running based on the detected temperature of said heat-storing material temperature sensor from said first heat supply running.
7. refrigerating circulatory device as claimed in claim 1 is characterized in that:
The compressor temperature sensor that also has the temperature that detects said compressor, said controller switch to said second heat supply running based on the detected temperature of said compressor temperature sensor from said first heat supply running.
8. refrigerating circulatory device as claimed in claim 1 is characterized in that:
Also have the discharging refrigerant temperature sensor of detection from the temperature of the cold-producing medium of said compressor discharge, said controller switches to said second heat supply running based on the detected temperature of said discharging refrigerant temperature sensor from said first heat supply running.
9. refrigerating circulatory device as claimed in claim 1 is characterized in that:
The heat storage tank temperature sensor that also has the temperature that detects said heat storage tank itself, said controller switch to said second heat supply running based on the detected temperature of said heat storage tank temperature sensor from said first heat supply running.
10. refrigerating circulatory device as claimed in claim 1 is characterized in that:
The revolution electric current sensor that also has the revolution electric current that detects said compressor, said controller switch to said second heat supply running based on the revolution electric current of the detected said compressor of said revolution electric current sensor from said first heat supply running.
11. refrigerating circulatory device as claimed in claim 1 is characterized in that:
The operating frequency of the said compressor in said second heat supply running is lower than the operating frequency of the said compressor in said first heat supply running.
12. refrigerating circulatory device as claimed in claim 1 is characterized in that:
Under with the situation of said set point of temperature as first set point of temperature, when the temperature at heat-storing material described in said second heat supply running dropped to than low second set point of temperature of said first set point of temperature, said controller switched to said first heat supply running.
13. refrigerating circulatory device as claimed in claim 1 is characterized in that:
Also has at least the timer that can carry out timing to the elapsed time that switches to after said second heat supply running; When the elapsed time of timer instrumentation described in said second heat supply running reached preset time, said controller switched to said first heat supply running.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/001359 WO2011108019A1 (en) | 2010-03-01 | 2010-03-01 | Refrigeration cycle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102782423A true CN102782423A (en) | 2012-11-14 |
| CN102782423B CN102782423B (en) | 2015-03-25 |
Family
ID=44541712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080065064.XA Expired - Fee Related CN102782423B (en) | 2010-03-01 | 2010-03-01 | Refrigeration cycle device |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20130027460A (en) |
| CN (1) | CN102782423B (en) |
| BR (1) | BR112012021194A2 (en) |
| WO (1) | WO2011108019A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236086A (en) * | 2013-06-14 | 2014-12-24 | 松下电器产业株式会社 | Hot water generator |
| CN105102249A (en) * | 2013-03-29 | 2015-11-25 | 日本空调系统股份有限公司 | Vehicle air conditioner |
| WO2016008134A1 (en) * | 2014-07-17 | 2016-01-21 | Electrolux (Hangzhou) Home Appliance Co., Ltd. | Heat pump system |
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- 2010-03-01 WO PCT/JP2010/001359 patent/WO2011108019A1/en active Application Filing
- 2010-03-01 BR BR112012021194A patent/BR112012021194A2/en not_active Application Discontinuation
- 2010-03-01 KR KR1020127022754A patent/KR20130027460A/en active IP Right Grant
- 2010-03-01 CN CN201080065064.XA patent/CN102782423B/en not_active Expired - Fee Related
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| JPS6219652A (en) * | 1985-07-19 | 1987-01-28 | 株式会社東芝 | Heat pump |
| JPS6321449A (en) * | 1986-07-11 | 1988-01-29 | 株式会社東芝 | Refrigeration cycle |
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| JPH0452469A (en) * | 1990-06-19 | 1992-02-20 | Daikin Ind Ltd | Air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105102249A (en) * | 2013-03-29 | 2015-11-25 | 日本空调系统股份有限公司 | Vehicle air conditioner |
| CN105102249B (en) * | 2013-03-29 | 2017-02-15 | 日本空调系统股份有限公司 | Vehicle air conditioner |
| CN104236086A (en) * | 2013-06-14 | 2014-12-24 | 松下电器产业株式会社 | Hot water generator |
| CN104236086B (en) * | 2013-06-14 | 2018-05-29 | 松下电器产业株式会社 | Hot water generating device |
| WO2016008134A1 (en) * | 2014-07-17 | 2016-01-21 | Electrolux (Hangzhou) Home Appliance Co., Ltd. | Heat pump system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130027460A (en) | 2013-03-15 |
| BR112012021194A2 (en) | 2016-05-17 |
| CN102782423B (en) | 2015-03-25 |
| WO2011108019A1 (en) | 2011-09-09 |
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