CN102782423B - Refrigeration cycle device - Google Patents
Refrigeration cycle device Download PDFInfo
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- CN102782423B CN102782423B CN201080065064.XA CN201080065064A CN102782423B CN 102782423 B CN102782423 B CN 102782423B CN 201080065064 A CN201080065064 A CN 201080065064A CN 102782423 B CN102782423 B CN 102782423B
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- heat
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- storing material
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Classifications
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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
- 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
- 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
-
- 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 and a kind ofly there is the heat storage tank of the heat-storing material of the heat that storage accumulation compressor produces and carried out the refrigerating circulatory device of the heat-storage heat exchanger of heat exchange by the accumulation of heat of heat-storing material.
Background technology
In the prior art, when air conditioner of heat pump type carries out confession heat run, when outdoor heat converter frosting, by cross valve from heating cycle to cooling cyclic switching to defrost.In this Defrost mode, although indoor fan stops, existing and release cold air gradually due to machine indoor and lose the shortcoming for hotness.
So, proposed to arrange regenerative apparatus in the compressor being arranged at off-premises station, utilized in the technology (for example, referring to patent document 1) of carrying out defrosting for the compressor used heat being stored in heat storage tank in heat run.
Fig. 7 represents an example of the refrigerating circulatory device that have employed such Defrost mode, it will be arranged at the compressor 100 of off-premises station by refrigerant piping, cross valve 102, outdoor heat converter 104 and capillary (capillary tube) 106 and the indoor heat converter 108 being arranged at indoor set are connected, and be provided with the first bypass circulation 110 capillary 106 being carried out to bypass (bypass), be connected to from pipe arrangement via cross valve 102 to indoor heat converter 108 of the discharge side of compressor 100 with one end, and the other end is connected to the second bypass circulation 112 of the pipe arrangement from capillary 106 to outdoor heat converter 104.In addition, the first bypass circulation 110 is provided with two-port valve 114, check valve 116 and heat-storage heat exchanger 118, the second bypass circulation 112 is provided with two-port valve 120 and check valve 122.
And, around compressor 100, being provided with heat storage tank 124, being filled with in the inside of heat storage tank 124 for carrying out the heat-storing material 126 of heat exchange with heat-storage heat exchanger 118.
In this kind of refrigeration cycle, when carrying out defrosting running, two two-port valves 114,120 are opened, and make a part for the cold-producing medium of discharging from compressor 100 flow to the second bypass circulation 112, make remaining refrigerant flow direction cross valve 102 and indoor heat converter 108.In addition, after the cold-producing medium flowing through indoor heat converter 108 is used as heat supply, few cold-producing medium is made to flow to outdoor heat converter 104 by capillary 106, on the other hand, remaining most of cold-producing medium is made to flow into the first bypass circulation 110, flow into heat-storage heat exchanger 118 by two-port valve 114 and absorb heat by heat-storing material 126, after check valve 116, flowing to outdoor heat converter 104 with the cold-producing medium that have passed capillary 106.Afterwards, collaborate with the cold-producing medium flowing through the second bypass circulation 112 at the entrance of outdoor heat converter 104, the heat utilizing cold-producing medium to keep defrosts, and then by after cross valve 102, is inhaled into compressor 100.
In this refrigerating circulatory device, by arranging the second bypass circulation 112, and when defrosting, the hot gas of discharging from compressor 100 is imported to outdoor heat converter 104, and the high pressure of the cold-producing medium flowing into outdoor heat converter 104 can be guaranteed, so defrosting ability can be improved, defrosting can be completed in the extremely short time.
Present technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 3-31666 publication
Summary of the invention
The problem that invention will solve
In the kind of refrigeration cycle described in patent document 1, when not carrying out defrosting the usual confession heat run operated, closing two two-port valves 114,120, by the running of compressor 100, by heat storage in heat-storing material 126, making its temperature increase.
But, if the excessive temperature of heat-storing material 126 rises, then can cause rotten (being such as oxidized) of heat-storing material 126 self and the moisture boiling of heat-storing material 126, and likely make heat-storing material 126 deterioration.
Such problem points that the present invention has in view of prior art is made, and object is to provide a kind of refrigerating circulatory device that can prevent the heat-storing material deterioration of accumulating the heat that compressor produces.
For solving the method for problem
In order to reach above-mentioned purpose, refrigerating circulatory device of the present invention has: the compressor connected via refrigerant piping, indoor heat converter, expansion valve and outdoor heat converter; And regenerative apparatus, this regenerative apparatus has the heat storage tank received the heat-storing material of the heat that accumulation compressor produces, with the heat-storage heat exchanger utilizing the accumulation of heat of heat-storing material to carry out heat exchange, also there is controller, this controller is switched to second for heat run by first for heat run, wherein the first heat supply operates at the temperature of heat-storing material when being below set point of temperature, makes the cold-producing medium of discharging from compressor by indoor heat converter, expansion valve and outdoor heat converter; When the temperature that second heat supply operates at heat-storing material exceedes set point of temperature, make the cold-producing medium of discharging from compressor by indoor heat converter and heat-storage heat exchanger.
Invention effect
According to the present invention, first for heat run in compressor, indoor heat converter, expansion valve and outdoor heat converter, therebetween, accumulate in the heat-storing material of regenerative apparatus compressor produce heat.When the temperature of heat-storing material exceedes set point of temperature, controller switches to and employs second of heat-storage heat exchanger for heat run, and second in heat run, heat-storage heat exchanger utilizes the accumulation of heat of heat-storing material to carry out heat exchange, reduces the temperature of heat-storing material thus.By the control of such controller, the excessive high temperature of heat-storing material can be prevented, can also prevent moisture from evaporating, so the deterioration of heat-storing material can be prevented.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure representing the air conditioner with regenerative apparatus of the present invention.
Fig. 2 represents the schematic diagram of the air conditioner of Fig. 1 action of (during the first confession heat run) and flow direction of cold-producing medium when usual heat supply.
The schematic diagram of action when Fig. 3 is defrosting, the heat supply of the air conditioner representing Fig. 1 and the flowing of cold-producing medium.
Fig. 4 represents that second of the air conditioner of Fig. 1 for the schematic diagram of the flow direction of action during heat run and cold-producing medium.
Fig. 5 represents that first for heat run and the second variation controlled for the switching of heat run, represents refrigerant piping branch from junction chamber inside heat exchanger and expansion valve and the sequential chart (timing chart) of the on-off action of magnetic valve that the refrigerant piping that leads to heat-storage heat exchanger is arranged.
Fig. 6 be in order to opening and closing magnetic valve when rising and when declining the temperature of heat-storing material is set as the key diagram of situation of different temperature.
Fig. 7 represents the schematic diagram of the structure of the refrigerating circulatory device of prior art.
Detailed description of the invention
Refrigerating circulatory device of the present invention has: the compressor connected via refrigerant piping, indoor heat converter, expansion valve and outdoor heat converter; And regenerative apparatus, this regenerative apparatus has the heat storage tank received the heat-storing material of the heat that accumulation compressor produces, with the heat-storage heat exchanger utilizing the accumulation of heat of described heat-storing material to carry out heat exchange, also there is controller, this controller is switched to second for heat run by first for heat run, wherein the first heat supply operates at the temperature of heat-storing material when being below set point of temperature, makes the cold-producing medium of discharging from compressor by indoor heat converter, expansion valve and outdoor heat converter; When the temperature that second heat supply operates at heat-storing material exceedes set point of temperature, make the cold-producing medium of discharging from compressor by indoor heat converter and heat-storage heat exchanger.
According to the present invention, can carry out from first for the switching of heat run to the second for heat run.First in heat run, the heat storage produced by compressor is in heat-storing material, and on the other hand, second in heat run, heat-storage heat exchanger utilizes the accumulation of heat of heat-storing material to carry out heat exchange, reduces the temperature of heat-storing material thus.Thereby, it is possible to prevent the excessive high temperature of heat-storing material, can also prevent moisture from evaporating, so the deterioration of heat-storing material can be prevented.
Specifically, leading on the refrigerant piping of heat-storage heat exchanger from the refrigerant piping branch of junction chamber inside heat exchanger and expansion valve, also there is the magnetic valve carrying out opening and closing based on the control signal carrying out self-controller, controller, by opening magnetic valve, carries out the switching supplying heat run from first for heat run to second.
Preferred controller carries out open and close controlling to magnetic valve, and make second in heat run, magnetic valve is in open mode in the first stipulated time, rear electromagnetic valve be in closed condition in the second stipulated time.At this, the second stipulated time is typically long than above-mentioned first stipulated time.Thereby, it is possible to use the confession heat run desired by magnetic valve maintenance of large-size.
Using the open mode of the first stipulated time of magnetic valve and the closed condition of the second stipulated time as one-period, repeatedly carry out the open and close controlling specified period of magnetic valve.Thereby, it is possible to make the temperature of heat-storing material drop to the temperature not causing heat-storing material deterioration.
In addition, cooling operation device such as also has the heat-storing material temperature sensor of the temperature detecting above-mentioned heat-storing material, the temperature that above-mentioned controller detects based on above-mentioned heat-storing material temperature sensor, is switched to above-mentioned second for heat run from above-mentioned first for heat run.
As another example, cooling operation device also has the compressor temperature sensor of the temperature detecting above-mentioned compressor, the temperature that above-mentioned controller detects based on above-mentioned compressor temperature sensor, is switched to above-mentioned second for heat run from above-mentioned first for heat run.
As an other example, cooling operation device also has the discharging refrigerant temperature sensor of the temperature detecting the cold-producing medium of discharging from above-mentioned compressor, the temperature that above-mentioned controller detects based on above-mentioned discharging refrigerant temperature sensor, is switched to above-mentioned second for heat run from above-mentioned first for heat run.
As an other example, cooling operation device also has the heat storage tank temperature sensor of the temperature detecting above-mentioned heat storage tank itself, the temperature that above-mentioned controller detects based on above-mentioned heat storage tank temperature sensor, is switched to above-mentioned second for heat run from above-mentioned first for heat run.
As an other example, cooling operation device also has the revolution electric current sensor of the revolution electric current detecting above-mentioned compressor, the revolution electric current of the above-mentioned compressor that above-mentioned controller detects based on above-mentioned revolution electric current sensor, is switched to above-mentioned second for heat run from above-mentioned first for heat run.
In addition, the operating frequency of the above-mentioned compressor preferably in above-mentioned second confession heat run is lower for the operating frequency of the above-mentioned compressor in heat run than above-mentioned first.
In addition, preferably when using afore mentioned rules temperature as the first set point of temperature, when supplying the temperature of above-mentioned heat-storing material in heat run to drop to second set point of temperature lower than above-mentioned first set point of temperature above-mentioned second, above-mentioned controller is switched to above-mentioned first for heat run.Like this, make the first set point of temperature and the second set point of temperature have the temperature difference, can prevent from mutually switching first continually for heat run and second for heat run.
In addition, refrigerating circulatory device also has the timer that at least can carry out timing to the elapsed time be switched to after above-mentioned second confession heat run, when above-mentioned second supplies the elapsed time of above-mentioned timer measurement in heat run to reach predetermined time, above-mentioned controller is switched to above-mentioned first for heat run.
Below, with reference to accompanying drawing, embodiments of the present invention are described.
Fig. 1 represents the structure of the air conditioner as refrigerating circulatory device of the present invention, and air conditioner is made up of the off-premises station 2 be connected to each other by refrigerant piping and indoor set 4.
As shown in Figure 1, compressor 6, cross valve 8, filter 10, expansion valve 12 and outdoor heat converter 14 is provided with in the inside of off-premises station 2, the inside of indoor set 4 is provided with indoor heat converter 16, and they are interconnected via refrigerant piping, form kind of refrigeration cycle thus.
Be described in detail further, compressor 6 is connected via the first pipe arrangement 18 being provided with cross valve 8 with indoor heat converter 16, and indoor heat converter 16 is connected via the second pipe arrangement 20 being 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.
Be configured with cross valve 8 at the pars intermedia of the 4th pipe arrangement 24, at the 4th pipe arrangement 24 of the cold-producing medium suction side of compressor 6, be provided with the storage heater 26 for separating of 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, and the 5th pipe arrangement 28 is provided with the first magnetic valve 30.
In addition, heat storage tank 32 is provided with around compressor 6, the inside of heat storage tank 32 is provided with heat-storage heat exchanger 34, and be filled with for carrying out the heat-storing material of heat exchange (such as with heat-storage heat exchanger 34, glycol water) 36, form regenerative apparatus by heat storage tank 32, heat-storage heat exchanger 34 and heat-storing material 36.
In addition, the second pipe arrangement 20 is connected via the 6th pipe arrangement 38 with heat-storage heat exchanger 34, and heat-storage heat exchanger 34 is connected via the 7th pipe arrangement 40 with the 4th pipe arrangement 24, and the 6th pipe arrangement 38 is provided with the second magnetic valve 42.
In the inside of indoor set 4, except being provided with indoor heat converter 16, also be provided with Air Blast fan (not shown), up and down blade (not shown) and left and right blade (not shown), the room air that indoor heat converter 16 carries out utilizing Air Blast fan and is inhaled into the inside of indoor set 4 and the heat exchange of cold-producing medium of inside flowing through indoor heat converter 16, blown out by heat exchange to indoor by the air heated when heat supply, on the other hand, when cooling will by heat exchange cooled air to indoor blowout.Upper and lower blade changes the direction of the air that machine 4 indoor blows out as required up and down, and left and right blade as required left and right changes the direction of the air that machine 4 indoor blows out.
In addition, compressor 6, Air Blast fan, up and down blade, left and right blade, cross valve 8, expansion valve 12, magnetic valve 30,42 etc. and controller 48(are with reference to Fig. 4, such as microcomputer) electrical connection, based on the control signal carrying out self-controller 48, the running of compressor 6, Air Blast fan, up and down blade, left and right blade, cross valve 8 and expansion valve 12 or action are controlled, and based on the control signal carrying out self-controller 48, opening and closing is carried out to two magnetic valves 30,42.
In the refrigerating circulatory device of the present invention of said structure, be example for situation during heat run, the flowing in conjunction with cold-producing medium illustrates interconnected relationship and the function of each parts.
From the cold-producing medium that the outlet of compressor 6 is discharged, arrive indoor heat converter 16 by the first pipe arrangement 18 from cross valve 8.In indoor heat converter 16, carry out the cold-producing medium of heat exchange and condensation with room air, heat exchanger 16 is out indoor, by the second pipe arrangement 20, then the filter 10 by preventing foreign matter from invading to expansion valve 12, arrive expansion valve 12.Outdoor heat converter 14 is arrived by the 3rd pipe arrangement 22 at the post-decompression cold-producing medium of expansion valve 12, in outdoor heat converter 14, carry out heat exchange with outdoor air and the cold-producing medium evaporated, returned the suction inlet of compressor 6 by the 4th pipe arrangement 24, cross valve 8 and storage heater 26.
In addition, from the 5th pipe arrangement 28 of branch between compressor 6 outlet and cross valve 8 of the first pipe arrangement 18, between the expansion valve 12 collaborating the 3rd pipe arrangement 22 via the first magnetic valve 30 and outdoor heat converter 14.
In addition, be accommodated with heat-storing material 36 be configured to contact with the heat storage tank 32 of heat-storage heat exchanger 34 in inside and surround compressor 6, by the heat storage that produces at compressor 6 in heat-storing material 36, from the 6th pipe arrangement 38 of the second pipe arrangement 20 branch between indoor heat converter 16 and filter 10, the entrance of heat-storage heat exchanger 34 is arrived via the second magnetic valve 42, from outlet the 7th pipe arrangement 40 out of heat-storage heat exchanger 34, collaborate between cross valve 8 in the 4th pipe arrangement 24 and storage heater 26.
Then, with reference to Fig. 2 of the flowing of action when schematically showing the usual heat supply of the air conditioner shown in Fig. 1 and cold-producing medium, action during usual heat supply is described.
When usually for heat run, the first magnetic valve 30 and the second magnetic valve 42 are closed, and as above-mentioned, the cold-producing medium of discharging from the outlet of compressor 6 reaches indoor heat converter 16 by the first pipe arrangement 18 from cross valve 8.The cold-producing medium of heat exchange and condensation is carried out with room air in indoor heat converter 16, heat exchanger 16 out and arrive expansion valve 12 by the second pipe arrangement 20 indoor, and in expansion valve 12, post-decompression cold-producing medium arrives outdoor heat converter 14 by the 3rd pipe arrangement 22.In outdoor heat converter 14, carry out heat exchange with outdoor air and the cold-producing medium evaporated, turned back to the suction inlet of compressor 6 by the 4th pipe arrangement 24 from cross valve 8.
In addition, the heat produced in compressor 6, is accumulated in the heat-storing material 36 of the inside being accommodated in heat storage tank 32 via the outer wall of heat storage tank 32 from the outer wall of compressor 6.
Then, with reference to Fig. 3 of the flowing of action when schematically showing defrosting, the heat supply of the air conditioner shown in Fig. 1 and cold-producing medium, action when defrosting, heat supply is described.In figure, solid arrow represents the flowing of the cold-producing medium for heat supply, and dotted arrow represents the flowing for the cold-producing medium defrosted.
Above-mentioned usual in heat run, if frosting on outdoor heat converter 14, and the frost of forming increases, then the flowing resistance of outdoor heat converter 14 increases and air quantity reduces, and the evaporating temperature in outdoor heat converter 14 reduces.As shown in Figure 3, at the 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 detect that evaporating temperature is than low during frost-free by pipe arrangement temperature sensor 44, then exported from being usually switched to defrosting for heat run, supplying the instruction of heat run by controller 48.
When being transformed into defrosting, confession heat run from usual confession heat run, control the first magnetic valve 30 and the second magnetic valve 42 makes it open, except the above-mentioned usual flowing for cold-producing medium during heat run, a part for the vapor phase refrigerant of discharging from the outlet of compressor 6 is by the 5th pipe arrangement 28 and the first magnetic valve 30, collaborate with the cold-producing medium by the 3rd pipe arrangement 22, heating clamber outer heat-exchanger 14, condensation and after liquid phase, turned back to the suction inlet of compressor 6 via cross valve 8 and storage heater 26 by the 4th pipe arrangement 24.
In addition, indoor heat converter 16 in the second pipe arrangement 20 and the part of liquid phase refrigerant shunted between filter 10, through the 6th pipe arrangement 38 and the second magnetic valve 42, in heat-storage heat exchanger 34 from heat-storing material 36 absorb heat and evaporate, vapor-phase after, collaborated with the cold-producing medium by the 4th pipe arrangement 24 by the 7th pipe arrangement 40, turn back to the suction inlet of compressor 6 from storage heater 26.
In the cold-producing medium returning storage heater 26, contain the liquid phase refrigerant that heat exchanger 14 outdoor returns, but by mixing the vapor phase refrigerant of the high temperature returned from heat-storage heat exchanger 34 wherein, liquid phase refrigerant is impelled to evaporate, by storage heater 26, liquid phase refrigerant does not return compressor 6, can realize the raising of the reliability of compressor 6.
Become the temperature of outdoor heat converter 14 below freezing due to the attachment of frost when defrosting, heat supply start, the vapor phase refrigerant heating of being discharged by the outlet from compressor 6, frost melts near zero degree, and at the end of the melting of frost, the temperature of outdoor heat converter 14 starts to rise again.If pipe arrangement temperature sensor 44 detects that the temperature of this outdoor heat converter 14 rises, be then judged as defrosting, exported from defrosting by controller 48, be switched to usually for the instruction of heat run for heat run.
< first supplies the switching control > of heat run for heat run and second
At this, being directed to the usual confession heat run shown in Fig. 2, when not carrying out defrosting the usual confession heat run operated, under the state of being closed by two magnetic valves 30,42, compressor 6 being operated, 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, then cause rotten (being such as oxidized) of heat-storing material 36 self and the moisture boiling of heat-storing material 36, likely make heat-storing material 36 deterioration, so in the present invention, carrying out first of following explanation by controller 48 supplies the switching of heat run to control for heat run and second, prevents the deterioration of heat-storing material 36.
Specifically, because the first heat supply operates as the usual confession heat run shown in Fig. 2, usually the first magnetic valve 30 and the second magnetic valve 42 being closed for during heat run, so turn back to compressor 6 from the cold-producing medium of compressor 6 discharge by indoor heat converter 16, expansion valve 12 and outdoor heat converter 14.Now, owing to being closed by the second magnetic valve 42, so cold-producing medium does not flow through heat-storage heat exchanger 34, the temperature being accommodated in the heat-storing material 36 of heat storage tank 32 rises slowly because of the heat produced at compressor 6.
On the other hand, the second heat supply operates as the confession heat run shown in Fig. 4, and when second for heat run, the first magnetic valve 30 cuts out, and on the other hand, the second magnetic valve 42 is opened.Therefore, the cold-producing medium of discharging from compressor 6 turns back to compressor 6 by indoor heat converter 16 and heat-storage heat exchanger 34.Now, the cold-producing medium flowing through heat-storage heat exchanger 34 carries out heat exchange because of heat supply at indoor heat converter 16, and its temperature declines, so owing to reclaiming the heat accumulated in heat-storing material 36, the temperature being accommodated in the heat-storing material 36 of heat storage tank 32 declines slowly.
In the present invention, be provided with the heat-storing material temperature sensor 46 of the temperature detecting heat-storing material 36, based on the detected temperatures of heat-storing material temperature sensor 46, control the second magnetic valve 42 by controller 48 and take the circumstances into consideration selection first for heat run and second for heat run.Specifically, the detected temperatures of heat-storing material temperature sensor 46 be set point of temperature (such as 90 DEG C) below during, carry out first and make heat-storing material 36 accumulation of heat for heat run, on the other hand, when the detected temperatures of heat-storing material temperature sensor 46 exceedes afore mentioned rules temperature, be switched to second for heat run from first for heat run, reduce the temperature of heat-storing material 36 thus.
In addition, in the present invention, set point of temperature is set as 90 DEG C, this is the boiling point of the moisture considering heat-storing material 36 and the temperature selected.
As described above, according to the present invention, first for heat run in compressor 6, indoor heat converter 16, expansion valve 12 and outdoor heat converter 14, therebetween, the heat-storing material 36 of regenerative apparatus accumulate compressor 6 produce heat.When the temperature of heat-storing material 36 exceedes set point of temperature, controller 48 is switched to and employs second of heat-storage heat exchanger 34 for heat run, second in heat run, heat by inner cold-producing medium exchanges with the heat accumulated in heat-storing material 36 by heat-storage heat exchanger 34, reduces the temperature of heat-storing material 36 thus.By the control of such controller 48, heat-storing material 36 excessively high temperature can be prevented, and then can prevent moisture from evaporating.Thereby, it is possible to prevent the deterioration of heat-storing material 36.
In addition, above-mentioned second in heat run, compressor 6 operating frequency is preferably made to reduce.Thus, the temperature of heat-storing material 36 reduces quickly.
< switches the variation > controlled
Fig. 5 represents the variation that above-mentioned switching controls, when the detected temperatures of heat-storing material temperature sensor 46 is below set point of temperature, carry out similar to the above first for heat run, on the other hand, when the detected temperatures of heat-storing material temperature sensor 46 exceedes set point of temperature, carry out second of the opening and closing of adjoint second magnetic valve 42 for heat run.
Be described in further detail, when first of the state that the second magnetic valve 42 cuts out for heat run, when the detected temperatures of heat-storing material temperature sensor 46 exceedes above-mentioned set point of temperature, be switched to second for heat run, by reducing the operating frequency of compressor 6 by controller 48 and giving control signal, first open the second magnetic valve 42 in the first stipulated time (about 1 second).And, after the first stipulated time, by giving control signal by controller 48, close the second magnetic valve 42 in the second stipulated time (about 20 second).
At this, if add up to one-period with the first stipulated time and the second stipulated time, then second in heat run, make the opening and closing of the second magnetic valve 42 such as carry out 10 cycles.In this variation, carry out second for heat run with these 10 cycle times.But, second in heat run, the opening and closing of any period the second magnetic valve 42 repeatedly can be selected as one sees fit.
In addition, the first and second stipulated times depended primarily on the size of the second magnetic valve 42, and preferably the second stipulated time is longer than the first stipulated time usually, such as, the first stipulated time was set as 1 second, the second stipulated time was set as 20 seconds.In this case, if make second for heat run and first for heat run 10 cycles repeatedly, then carry out second controlled for 210 seconds for heat run and first for the switching of heat run after, carry out to first for the switching of heat run.In this case, the number of times of the ON in controller 48 pairs of control signals counts, and carries out the switching supplying heat run to first when ON number reaches 10 times.In addition, as an alternative, controller 48 also can be built-in with the timer 481 counted the time, when being switched to second for when counting down to 210 seconds after heat run, carries out to first for the switching of heat run.In addition, also can before 10 cycles repeatedly, when the detected temperatures of heat-storing material temperature sensor 46 reaches below set point of temperature, carry out to first for the switching of remaining in operation of heat run.
In addition, as shown in Figure 6, by the detected temperatures of the heat-storing material temperature sensor 46 being used for opening and closing second magnetic valve 42 being set as different temperature when the temperature of heat-storing material 36 rises and when declining, the opening and closing of frequent second magnetic valve 42 repeatedly can be prevented.
In the example shown in Fig. 6, set the first set point of temperature (such as 90 DEG C) and second set point of temperature (such as 85 DEG C) lower than the first set point of temperature, when the temperature of heat-storing material 36 is below the first set point of temperature, the second magnetic valve 42 is remained on closed condition, when the temperature of heat-storing material 36 is more than the first set point of temperature, control is opened to the second magnetic valve 42, on the other hand, when the temperature of heat-storing material 36 becomes below the second set point of temperature, closing control is carried out to the second magnetic valve 42.
And, the heat-storing material temperature sensor 46 for carrying out opening and closing to the second magnetic valve 42 according to the temperature of heat-storing material 36 can also be substituted, the revolution electric current sensor of the revolution electric current of the compressor temperature sensor using the temperature of detection compressor 6, the discharging refrigerant temperature sensor detecting the temperature of the cold-producing medium of discharging from compressor 6, the heat storage tank temperature sensor detecting heat storage tank 32 own temperature, detection compressor 6.
This is based on reason below.
Compressor temperature sensor: the temperature of compressor 6 and the temperature of heat-storing material 36 closely related, if the temperature of compressor 6 is high, the temperature of heat-storing material 36 is also high.
Discharging refrigerant temperature sensor: the temperature of temperature and the heat-storing material 36 of the cold-producing medium of discharging from compressor 6 is closely related, if the temperature height of discharging refrigerant, the temperature of heat-storing material 36 is also high.
Heat storage tank temperature sensor: the temperature of heat storage tank 32 be also substantially 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.
Revolution electric current sensor: if the revolution electric current of compressor 6 is large, the temperature of heat-storing material 36 is also high.
In addition, when alternative heat-storing material temperature sensor 46 uses compressor temperature sensor, discharging refrigerant temperature sensor, heat storage tank temperature sensor, also as shown in Figure 6, be set as different temperature preferably by when temperature rises and when declining, prevent the opening and closing of frequent second magnetic valve 42 repeatedly.
In addition, when alternative heat-storing material temperature sensor 46 uses the revolution electric current sensor of the revolution electric current detecting compressor 6, when the detection electric current of revolution electric current sensor is below rated current, carry out first for heat run, make heat-storing material 36 accumulation of heat, on the other hand, when the detection electric current of revolution electric current sensor exceedes rated current, be switched to second for heat run from first for heat run, heat-storing material 36 is cooled.
Or, also can when first of the state of the second magnetic valve 42 closedown be for heat run, when the detection electric current of revolution electric current sensor exceedes rated current, reduce the operating frequency of compressor 6 and control is opened to the second magnetic valve 42, move to second for heat run, in continuation second for heat run first stipulated time, and then after the first stipulated time, closing control is carried out to the second magnetic valve 42, first is switched to for heat run (wherein for heat run from second, maintain the state reducing the operating frequency of compressor 6), in continuation first for heat run second stipulated time, make its stipulated number (such as 10 cycles) repeatedly.
And the situation of various temperature sensor is same with using, preferably by when the rising of revolution electric current and the time of decline be set as different electric currents, prevent frequently repeatedly the opening and closing of the second magnetic valve 42.
In addition, in above-mentioned embodiment (also comprising variation), the testing result based on various sensor is carried out first and is controlled for the switching of heat run for heat run and second.In addition, particularly describe, control also to carry out based on the timing result of timer 481 for the switching of heat run to the first for heat run from second.Also can be based on following thinking according to the switching that the timing result of timer 481 is carried out.
That is, once determine the composition of heat-storing material 36 and amount, then the temperature of heat-storing material 36 is from reaching more than set point of temperature to again lower than the supposition that the time this set point of temperature can carry out to a certain degree.In addition, in order to reach the boiling this purpose preventing heat-storing material, need to be switched to second for heat run from first for heat run accurately, but, supply the switching precision of heat run too many requirement for heat run to first from second.In the present invention, because the composition of heat-storing material 36 and amount do not change, thus can obtain by experiment etc. in advance heat-storing material 36 after compressor 6 operates reach set point of temperature time and after reaching set point of temperature to the time positively reaching below set point of temperature.And the time that this can try to achieve in the moment reaching more than set point of temperature by controller 48 is set in timer 481, carry out when reaching time (time out) controlling to first for the switching of heat run from the second heat supply for running.In addition, when heat-storing material 36 temperature rises and when being set with temperature difference when declining, once determine composition and the amount of heat-storing material, then after reaching the first set point of temperature shown in Fig. 6 (such as 90 DEG C), substantially determine the time to turning back to the second set point of temperature (such as 85 DEG C).
Industry utilizes possibility
Refrigerating circulatory device of the present invention due to the deterioration of heat-storing material of accumulating the heat that compressor produces can be prevented, so be useful to air conditioner, refrigerator, water heater, heat-pump-type washing machine etc.
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 heat-storage 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 (10)
1. a refrigerating circulatory device, it has: the compressor connected via refrigerant piping, indoor heat converter, expansion valve and outdoor heat converter; And regenerative apparatus, this regenerative apparatus has the heat storage tank received the heat-storing material of the heat that the described compressor of accumulation produces, with the heat-storage heat exchanger utilizing the accumulation of heat of described heat-storing material to carry out heat exchange, the feature of this refrigerating circulatory device is also have:
Controller, this controller is switched to second for heat run by first for heat run, when the temperature that wherein said first heat supply operates at described heat-storing material is below set point of temperature, make the cold-producing medium of discharging from described compressor by described indoor heat converter, described expansion valve and described outdoor heat converter; When the temperature that described second heat supply operates at described heat-storing material exceedes described set point of temperature, make the cold-producing medium of discharging from described compressor by described indoor heat converter and described heat-storage heat exchanger; With
Be arranged on from the refrigerant piping branch connecting described indoor heat converter and described expansion valve and lead to the refrigerant piping of described heat-storage heat exchanger, carrying out the magnetic valve of opening and closing based on the control signal from described controller,
Described controller, by opening described magnetic valve to carry out the switching supplying heat run from described first for heat run to described second, and open and close controlling is carried out to described magnetic valve, make described second in heat run, described magnetic valve be in the first stipulated time the open state opened and be in the state of closing of closedown as one-period in the second stipulated time afterwards, repeatedly carrying out the open and close controlling specified period of described magnetic valve.
2. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Described second stipulated time is longer than described first stipulated time.
3. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Also there is the heat-storing material temperature sensor of the temperature detecting described heat-storing material, the temperature that described controller detects based on described heat-storing material temperature sensor, be switched to described second for heat run from described first for heat run.
4. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Also there is the compressor temperature sensor of the temperature detecting described compressor, the temperature that described controller detects based on described compressor temperature sensor, be switched to described second for heat run from described first for heat run.
5. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Also there is the discharging refrigerant temperature sensor of the temperature detecting the cold-producing medium of discharging from described compressor, the temperature that described controller detects based on described discharging refrigerant temperature sensor, be switched to described second for heat run from described first for heat run.
6. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Also there is the heat storage tank temperature sensor of the temperature detecting described heat storage tank itself, the temperature that described controller detects based on described heat storage tank temperature sensor, be switched to described second for heat run from described first for heat run.
7. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Also there is the revolution electric current sensor of the revolution electric current detecting described compressor, the revolution electric current of the described compressor that described controller detects based on described revolution electric current sensor, be switched to described second for heat run from described first for heat run.
8. refrigerating circulatory device as claimed in claim 1, is characterized in that:
The operating frequency of the described compressor in described second confession heat run is lower for the operating frequency of the described compressor in heat run than described first.
9. refrigerating circulatory device as claimed in claim 1, is characterized in that:
When using described set point of temperature as the first set point of temperature, when dropping to second set point of temperature lower than described first set point of temperature described second for the temperature of heat-storing material described in heat run, described controller is switched to described first for heat run.
10. refrigerating circulatory device as claimed in claim 1, is characterized in that:
Also have and at least the elapsed time after heat run can be supplied to carry out the timer of timing to being switched to described second, when described second supplies the elapsed time of the measurement of timer described in heat run to reach predetermined time, described controller is switched to described first for heat run.
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 CN102782423A (en) | 2012-11-14 |
| CN102782423B true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2962878B1 (en) * | 2013-03-29 | 2017-10-25 | Japan Climate Systems Corporation | Vehicle air conditioner |
| JP2015001326A (en) * | 2013-06-14 | 2015-01-05 | パナソニックＩｐマネジメント株式会社 | Hot-water generation device |
| NZ728139A (en) * | 2014-07-17 | 2018-08-31 | Electrolux Hangzhou Home Appliance Co Ltd | Heat pump system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6321449A (en) * | 1986-07-11 | 1988-01-29 | 株式会社東芝 | Refrigeration cycle |
| JPS63143473A (en) * | 1986-12-08 | 1988-06-15 | 松下電器産業株式会社 | Defrostation controller for heat pump type air conditioner |
| JPS63148063A (en) * | 1986-12-08 | 1988-06-20 | 松下電器産業株式会社 | Defrostation controller for heat pump type air conditioner |
| JPH02251052A (en) * | 1989-03-22 | 1990-10-08 | Daikin Ind Ltd | Compressor for refrigerator |
| JPH0674618A (en) * | 1992-08-28 | 1994-03-18 | Daikin Ind Ltd | Air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730968B2 (en) * | 1985-07-19 | 1995-04-10 | 株式会社東芝 | Heat pump |
| JPS63156980A (en) * | 1986-12-19 | 1988-06-30 | 松下電器産業株式会社 | Heat pump type air conditioner |
| JP2526716B2 (en) * | 1990-06-19 | 1996-08-21 | ダイキン工業株式会社 | Air conditioner |
| JP2004020097A (en) * | 2002-06-18 | 2004-01-22 | Fuji Electric Holdings Co Ltd | Heat storage system integrating refrigeration with air-conditioning |
-
2010
- 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
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6321449A (en) * | 1986-07-11 | 1988-01-29 | 株式会社東芝 | Refrigeration cycle |
| JPS63143473A (en) * | 1986-12-08 | 1988-06-15 | 松下電器産業株式会社 | Defrostation controller for heat pump type air conditioner |
| JPS63148063A (en) * | 1986-12-08 | 1988-06-20 | 松下電器産業株式会社 | Defrostation controller for heat pump type air conditioner |
| JPH02251052A (en) * | 1989-03-22 | 1990-10-08 | Daikin Ind Ltd | Compressor for refrigerator |
| JPH0674618A (en) * | 1992-08-28 | 1994-03-18 | Daikin Ind Ltd | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011108019A1 (en) | 2011-09-09 |
| BR112012021194A2 (en) | 2016-05-17 |
| KR20130027460A (en) | 2013-03-15 |
| CN102782423A (en) | 2012-11-14 |
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