WO2018084459A1 - Climatiseur - Google Patents

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Publication number
WO2018084459A1
WO2018084459A1 PCT/KR2017/011453 KR2017011453W WO2018084459A1 WO 2018084459 A1 WO2018084459 A1 WO 2018084459A1 KR 2017011453 W KR2017011453 W KR 2017011453W WO 2018084459 A1 WO2018084459 A1 WO 2018084459A1
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WO
WIPO (PCT)
Prior art keywords
heat
refrigerant
adsorbent
pipe
heat exchanger
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Application number
PCT/KR2017/011453
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English (en)
Korean (ko)
Inventor
김경록
김선태
이동규
진동식
Original Assignee
삼성전자 주식회사
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Publication of WO2018084459A1 publication Critical patent/WO2018084459A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0014—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using absorption or desorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • 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
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • F25B2313/0211—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during defrosting
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2501—Bypass valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present invention relates to an air conditioner, and more particularly, to an air conditioner having a heat generator for heating a refrigerant flowing into a compressor during defrosting.
  • an air conditioner is a device including an indoor unit, an outdoor unit, and a refrigerant circulating therebetween, by using a property of releasing heat to the surroundings when the refrigerant liquefies and absorbing the surrounding heat when the refrigerant is liquefied, It is a device for heating.
  • Such an air conditioner has a problem in that when the outside temperature is very low in winter or when the heating operation is performed for a predetermined time, moisture is implanted in the outdoor heat exchanger so that heat exchange with the outdoor air is not performed smoothly.
  • the air conditioner performs a defrosting operation to remove frost formed on the outdoor heat exchanger.
  • the defrosting operation may be performed by a reverse cycle method in which the circulation direction of the refrigerant is reversed and a hot gas bypass method through which the refrigerant from the compressor flows to the outdoor heat exchanger.
  • a heat storage tank may be provided during the heating operation, and a heat storage tank using the heat as an auxiliary heat source during the defrosting operation.
  • a conventional air conditioner may store heat required during the defrosting operation. A large amount of heat storage material was needed for this purpose. Therefore, the heat storage tank is increased in size to contain a large amount of heat storage material, which is a factor to increase the overall size of the air conditioner.
  • An object of the present invention is to control the refrigerant to pass through the heat generating device during the defrosting operation, and by supplying a refrigerant whose temperature is increased by the adsorption heat generated while the adsorbent and the refrigerant is physically adsorbed to reduce the defrost time, defrost efficiency
  • the height is to provide an air conditioner.
  • the present invention controls the refrigerant to pass through the heat generating device during the defrosting operation, by supplying a refrigerant with increased temperature to the compressor by the heat of adsorption generated during the physical adsorption of the adsorbent and the refrigerant, defrost time It is an object of the present invention to provide an air conditioner that reduces and increases defrosting efficiency.
  • the present invention provides an air conditioner in which an indoor heat exchanger, an outdoor expansion device, an outdoor heat exchanger, an accumulator, a compressor, and an oil separator are sequentially connected, the refrigerant flowing from the outdoor expansion device to the compressor.
  • a heat generating device for heating the heat generating device comprising: an adsorbent for generating heat by physical adsorption with the refrigerant; A tank filled with the adsorbent; And a heat transfer pipe transferring heat to the adsorbent to regenerate the adsorbent.
  • the heat transfer tube may pass through the tank so that the adsorbent is in contact with the outer circumferential surface.
  • the heat pipes may be branched from a section within the tank to form a plurality of pipes, and the plurality of pipes may be connected in parallel to each other.
  • the heat transfer pipe may be formed in a zigzag shape in a section within the tank.
  • the adsorbent may be any one of activated carbon, zeolite, silica gel, and activated alumina.
  • a first bypass pipe for guiding the refrigerant discharged from the indoor heat exchanger to the heat generating device; And a second bypass tube for guiding the heated refrigerant through the heat generator to the accumulator.
  • the first bypass pipe may be connected to an inlet of the tank such that a refrigerant reacts with the adsorbent, and the second bypass pipe may be connected to an outlet of the tank where the heated refrigerant is discharged by reacting with the adsorbent.
  • the first and second bypass pipes may branch in some sections of the flow path where the refrigerant flows in a low pressure state during the defrosting operation.
  • the heat transfer tube may be disposed on a flow path through which the oil separated from the oil separator is returned to the compressor.
  • the tank may be formed to surround the heat transfer pipe.
  • a first opening and closing valve disposed in the first bypass pipe to control the flow of the refrigerant to be transferred to the tank; may further include a.
  • a second on / off valve disposed on a flow path connecting the oil separator and the inlet of the heat transfer tube to control the flow of oil transferred to the heat transfer tube.
  • a third bypass pipe for guiding the refrigerant discharged from the compressor and moving to an indoor heat exchanger to the heat transfer pipe; And a fourth bypass pipe for guiding the refrigerant passing through the heat transfer pipe to the outdoor heat exchanger.
  • the outdoor heat exchanger may be provided in plurality, and may include a plurality of connection pipes branched from the compressor to the four-way valve and connected to the outdoor heat exchanger, respectively.
  • the plurality of connection pipes may be disposed on and off valves to selectively open and close the plurality of connection pipes.
  • FIG. 1 is a view showing an air conditioner according to an embodiment of the present invention.
  • FIG. 2A is a cross-sectional view of the heat generator shown in FIG. 1.
  • FIG. 2B and 2C are cross-sectional views illustrating a modified example of the heat generator illustrated in FIG. 2A.
  • FIG 3 is a view for explaining a defrosting operation of the air conditioner according to an embodiment of the present invention.
  • FIG. 4 is a view for explaining the heating operation of the air conditioner according to an embodiment of the present invention.
  • FIG. 5 is a view showing an air conditioner according to another embodiment of the present invention.
  • FIG. 6 is a view showing an air conditioner according to another embodiment of the present invention.
  • the air conditioner according to the present embodiment is described by taking a heater as an example, but is not limited thereto.
  • the air conditioner may be an air conditioner that serves both cooling and heating.
  • the heat generating device applied to the air conditioner according to the present embodiment described below can be obtained in a small size and high efficiency compared to the conventional heat storage tank.
  • FIG. 1 is a view showing an air conditioner according to an embodiment of the present invention.
  • the air conditioner 1 is largely comprised of an indoor unit 10 and an outdoor unit 20.
  • the indoor unit 10 includes an indoor heat exchanger 13 through which the refrigerant is heat exchanged, and an indoor expansion device 11 through which the refrigerant is expanded under reduced pressure.
  • the outdoor unit 20 includes a compressor 21 for compressing a refrigerant, an outdoor heat exchanger 23 for exchanging refrigerant, and four-way valves 25 and 4- arranged on the discharge side of the compressor 21 to switch the flow path of the refrigerant. a way valve, an accumulator 27 connected to the suction side of the compressor 21 and providing a refrigerant in a gaseous state to the compressor 21, and disposed between the indoor heat exchanger 13 and the outdoor heat exchanger 23. And an outdoor expansion device 29 for expanding the refrigerant under reduced pressure.
  • An oil separator 31 is provided at the discharge side of the compressor 21 to separate oil, and a circulation passage 33 is formed at the oil separator 31 so that the separated oil can be returned to the compressor 21 again. do. Downstream of the circulation passage 33 may be a capillary tube 35 for decompression. A portion of the circulation passage 33 may be a heat transfer tube 130 of the heat generating device 100 to be described later.
  • the downstream valve 25 is connected to the downstream side of the oil separator 31.
  • An outdoor heat exchanger 20, an accumulator 27, and an inflow refrigerant pipe 51 into which a refrigerant flows through the indoor unit 10 during defrosting are connected to the outflow side of the four-way valve 25.
  • the outflow side refrigerant pipe 53 is connected to the outlet side of the outdoor expansion device 29 along the flow direction of the refrigerant during defrosting so that the refrigerant can flow to the indoor unit 10.
  • the service valves 41 and 43 are provided in the inflow side refrigerant pipe 51 and the outflow side refrigerant pipe 53, respectively.
  • the outdoor unit 20 includes a heat generator 100 for heating the refrigerant by physical adsorption of the refrigerant downstream of the outdoor expansion device 29 along the flow direction of the refrigerant during defrosting. do.
  • the structure of the heat generating device 100 will be described in detail with reference to FIG. 2A below.
  • the flow path of the air conditioner 1 may include a main pipe 60 and first and second bypass pipes 61 and 62.
  • the main pipe 60 is connected to the flow path from the outlet side of the outdoor expansion device 29 to the intake side of the accumulator 27 through the outdoor heat exchanger 23 and the four-way valve 25 along the flow direction of the refrigerant during heating. Corresponding.
  • the bypass pipes 61 and 62 are branched from the starting point P1 of the main pipe 60 and connected to the heat generating device 100 and the main pipe 61 and 62 again from the heat generating device 100. And a second bypass tube 62 connected to the tube 60.
  • the first bypass pipe 61 transfers the refrigerant flowing through the main pipe 60 to the heat generator 100, and the second bypass pipe 62 passes the refrigerant heated through the heat generator 100.
  • the heat generator 100 is transferred back to the main pipe (60).
  • the heat generator 100 may be connected in parallel to the main pipe 60 by the first bypass pipe 61 and the second bypass pipe 62. At this time, the main pipe 60 corresponds to the low pressure region of the refrigerant during heating.
  • the first bypass pipe 61 is formed to branch from the flow path from the outlet side of the four-way valve 25 to the suction side of the accumulator 27 along the flow direction of the refrigerant during heating.
  • the second bypass pipe 62 is formed to be connected to the suction side of the accumulator 27 again.
  • the first bypass pipe 61 for introducing the refrigerant into the heat generator 100 is connected to the main pipe 60 so that the refrigerant flowing through the main pipe 60 can be bypassed during defrosting.
  • the second bypass pipe 62 is connected to the main pipe 60 to allow the refrigerant discharged from the heat generator 100 to flow into the accumulator 27.
  • the point where the 2nd bypass pipe 62 is connected with the main pipe 60 is located downstream from the 1st bypass pipe 61.
  • On-off valve V1 is provided.
  • FIG. 2A is a cross-sectional view of the heat generating device.
  • the heat generator 100 regenerates an adsorbent 120 that generates heat by physical adsorption with a refrigerant, a tank 110 filled with the adsorbent 120, and an adsorbent 120.
  • a heat pipe 130
  • the heat generating apparatus 100 uses physical adsorption in which the refrigerant is contacted with and adsorbed to the adsorbent 120 to heat the refrigerant.
  • Physical adsorption is always an exothermic reaction, and the refrigerant can be heated using heat generated by physical adsorption.
  • the heat generator 100 may adsorb the refrigerant to the adsorbent 120 and heat the refrigerant with the generated adsorption heat to discharge the high temperature refrigerant.
  • the adsorbent 120 may mainly be a solid adsorbent such as silica or zeolite.
  • the adsorbent 120 may be activated carbon, meropolar silica, zeolite, silica gel, clay mineral, or the like. Adsorption occurs at a solid interface of the adsorbent 120, so that the adsorbent 120 is porous to increase the interface of the adsorbent 120.
  • the adsorbent 120 is filled in the tank 110, and one side of the tank 110 is formed with an inlet 111 through which the refrigerant is introduced and an outlet 113 through which a high temperature refrigerant heated by adsorption heat is discharged.
  • the refrigerant introduced into the heat generating device 100 through the inlet 111 is discharged to the outlet 113 by the pressure difference, and the inlet 111 and the outlet 113 are inlet bypass pipe 63 and outlet bypass, respectively.
  • the pass pipe 65 is connected in mutual communication.
  • the refrigerant flowing in the inlet bypass pipe 63 is in direct contact with the adsorbent 120 in the tank 110 through the inlet 111 and is physically adsorbed, and the refrigerant is introduced into the tank 110 by the adsorption heat generated by the physical adsorption. Is heated, and the heated refrigerant is discharged to the discharge bypass pipe 65 through the discharge port 113.
  • the heat generating device 100 uses the adsorbent 120 to exothermicly react with the refrigerant.
  • the compact heat generator 100 can be provided to provide an outdoor unit having a small size, and if the heat generator 100 and the conventional heat storage tank are the same size, an auxiliary heat source having higher efficiency can be provided. There is this.
  • the air conditioner 1 allows the refrigerant compressed from the compressor 21 to flow to the outdoor heat exchanger 23 so that the outdoor heat exchanger 23 may be defrosted.
  • the refrigerant compressed by the compressor 21 flows into the outdoor heat exchanger 23 via the four-way valve 25 to perform defrosting.
  • the refrigerant introduced from the indoor unit 10 through the inlet refrigerant pipe 51 flows to the heat generating device 100 to heat the refrigerant through the heat generating device 100 to lower the amount of heat supplied from the compressor. It can be carried out efficient defrosting.
  • the refrigerant introduced through the inlet refrigerant pipe 51 and sucked into the accumulator 27 is allowed to flow into the bypass pipe 61. Some of the refrigerant introduced into the inlet bypass pipe 63 is physically adsorbed with the adsorbent 120 in the heat generating device 100, and the remaining refrigerant is heated by the adsorption heat and discharged into the discharge bypass pipe 65.
  • the high temperature refrigerant discharged from the heat generator 100 is sucked into the compressor 21 via the accumulator 27, compressed and discharged to perform defrosting in the outdoor heat exchanger 23.
  • the heat generating device 100 according to an embodiment of the present invention functions as an auxiliary heat source during defrosting operation, thereby increasing defrosting performance and enabling rapid heating return. In addition, the amount of heat supplied from the compressor 21 is lowered to obtain the energy saving effect of the air conditioner 1.
  • Regeneration of the adsorbent refers to removing the refrigerant adsorbed to the adsorbent 120 from the surface of the adsorbent 120.
  • Desorption of the adsorbed refrigerant off the surface of the adsorbent 120 due to the reverse reaction of adsorption is called desorption, which includes a process of desorption in the regeneration process. Desorption occurs when the temperature of the surface of the adsorbent 120 increases.
  • heat is applied to the adsorbent 120, the adsorbed refrigerant is separated from the surface of the adsorbent 120, and the adsorbent 120 is regenerated to be physically adsorbed again.
  • the heat transfer tube 130 is for regeneration of the adsorbent 120 and may be formed to penetrate the inside of the tank 110 to be in direct contact with the adsorbent 120.
  • the heat transfer tube 130 may be formed of a conductive material so as to transfer heat of the oil or refrigerant flowing inside the heat transfer tube 130 to the adsorbent 120.
  • the heat transfer tube 130 of the heat generator 100 may be disposed in a flow path in which oil separated from the oil separator 31 is returned to the compressor.
  • the heat transfer tube 130 may be connected to communicate with the circulation passage 33.
  • the oil separated in the oil separator 31 during the heating operation is allowed to flow to the heat transfer tube 130 to regenerate the adsorbent 120 using the heat of the oil circulated.
  • the air conditioner 1 uses heat of circulated oil that is not in use, the user's heating sensation performance can be improved, and the air conditioner is recycled by remaining heat. It can improve the energy efficiency.
  • the adsorbent 120 and the heat transfer tube 130 are disposed in direct contact with each other so as to absorb heat required for regeneration of the adsorbent.
  • the heat transfer tube may be formed in various forms.
  • FIG. 2B and 2C show a modified example of the heat pipe shown in FIG. 2A.
  • the heat transfer tube 131 may be formed of two or more tubes 133 and 135 branched in the tank 110 and connected in parallel to increase the contact area with the adsorbent 120.
  • the heat transfer tube 139 may have a zigzag shape in a section located in the tank 110 to have an extended contact area to efficiently transfer heat to the adsorbent 120.
  • FIG 3 is a view for explaining a defrosting operation of the air conditioner according to an embodiment of the present invention.
  • the refrigerant is supplied to the compressor 21, the oil separator 31, the four-way valve 25, and the outdoor heat exchanger 23.
  • the refrigerant cycle circulated in the compressor 21 is repeated.
  • the refrigerant supplied from the inflow refrigerant pipe 51 is circulated to the accumulator 27 via the heat generating device 100.
  • the high temperature and high pressure gas refrigerant flowing out of the compressor 21 during the defrosting operation flows into the outdoor heat exchanger 23 to remove frost formed.
  • the refrigerant flowing into the first bypass pipe 61 from the inlet refrigerant pipe 51 is physically adsorbed by the heat generating device 100 to generate heat.
  • the refrigerant heated by the heat of adsorption of the heat generator 100 is discharged to the second bypass pipe 62.
  • the heat generating device 100 converts the refrigerant into a high temperature refrigerant by heating an exothermic reaction according to physical adsorption of the adsorbent 120 and the refrigerant as an auxiliary heat source.
  • the refrigerant discharged into the second bypass pipe 62 may be converted into high temperature and high pressure gas through the accumulator 27 and the compressor 21 to remove the frost formed on the outdoor heat exchanger 23.
  • the first opening / closing valve V1 formed in the first bypass pipe 61 is opened, and a part of the refrigerant flowing through the main pipe 60 flows into the heat generating device 100.
  • a part of the refrigerant flowing in the main pipe 60 is introduced into the heat generating device 100, but the present invention is not limited thereto. It also includes a case where all of the refrigerant flowing through the pipe 60 is sucked into the accumulator 27 via the heat generator 100.
  • the machine 1 performs a defrost function.
  • the circulating flow path does not flow the oil separated from the oil separator 31 to the heat transfer pipe 130 of the heat generator 100. 60 is closed by the 2nd open / close valve V2.
  • the refrigerant discharged from the compressor 21 flows to the indoor heat exchanger 13 to perform the heating operation.
  • FIG. 4 is a view for explaining the heating operation of the air conditioner according to an embodiment of the present invention.
  • the refrigerant compressed by the compressor 21 during the heating operation of the air conditioner 1 (in the direction of the arrow in FIG. 4) is passed through the oil separator 31 to the indoor heat exchanger by the four-way valve 25. (13), the outdoor expansion device (29), the outdoor heat exchanger (23), the four-way valve (25), the accumulator (27), the compressor cycle circulated in the order of the compressor 21 is repeated.
  • the low-temperature, low-pressure gas refrigerant is compressed by the compressor 21 into the high-temperature, high-pressure gas refrigerant, and the compressed refrigerant is supplied to the indoor heat exchanger 13 by the four-way valve 25.
  • the heat exchanger passes through the indoor heat exchanger 13 at a high temperature and high pressure while being heat-exchanged with the indoor air.
  • the indoor fan (not shown) installed on one side of the indoor heat exchanger 13 rotates and flows the air
  • the cold air of the room is supplied to the indoor heat exchanger 13 and flows through the indoor heat exchanger 13.
  • the hot air is converted into hot air by heat exchange with a high-temperature, high-pressure liquid refrigerant.
  • the hot air is then discharged into the room as the indoor fan (not shown) continues to rotate, thereby heating the room.
  • the refrigerant in the liquid state which has been supercooled while passing through the indoor heat exchanger 13, rapidly passes through the outdoor expansion device 29, so that the pressure and temperature drop rapidly, and the refrigerant is changed into a refrigerant having a low temperature and low pressure gas-liquid mixture, and then the outdoor heat exchanger ( 23, the refrigerant introduced into the outdoor heat exchanger (23) absorbs the surrounding heat while passing through the outdoor heat exchanger (23) and is converted into a gas state of low temperature and low pressure.
  • the bypass pipe 61 is closed by the first opening / closing valve V1 so as to flow to the accumulator 27 without passing through the heat generating device 100.
  • the circulation passage 33 connected to the outlet side of the oil separator 31 is connected to the second on / off valve V2.
  • High temperature oil flows through the heat transfer tube 130 in communication with the circulation passage 33, and transfers heat of the oil to the adsorbent 120 through the heat transfer tube 130.
  • the refrigerant adsorbed by the heat is separated from the surface of the adsorbent 120, and the adsorbent 120 is in a state capable of being adsorbed again.
  • FIG. 5 is a view showing an air conditioner according to another embodiment of the present invention.
  • the heat generator 200 is the first bypass pipe 61 for introducing the refrigerant into the same adsorbent 120 as in the embodiment 1 and the second bypass for discharging the heated refrigerant It has a pass pipe 62.
  • the heat transfer pipe 230 for regenerating the adsorbent 120 of the heat generator 200 is disposed to allow a material such as a high temperature refrigerant or oil to pass therethrough. If a high temperature material passes through the heat pipe 230, the flow path arrangement of the heat pipe 230 is not limited.
  • the other The heat generator 200 has an outdoor expansion disposed in the third bypass pipe 63 and the outlet refrigerant pipe 53 branching from the inlet refrigerant pipe 51 through which high-temperature and high-pressure refrigerant is discharged during heating.
  • a fourth bypass tube 64 connected downstream of the device 29. One end into which the refrigerant of the heat transfer tube 230 flows is connected to the third bypass tube 63, and the other end from which the refrigerant from the heat transfer tube 230 is discharged is connected to the fourth bypass tube 64. do.
  • a high temperature refrigerant flows through the heat transfer tube 230 for regeneration of the adsorbent 120.
  • the compressor 21 is compressed into a gas refrigerant having a high temperature and a high pressure, and the compressed refrigerant is supplied to the indoor heat exchanger 13 through the four-way valve 25.
  • some of the high-temperature, high-pressure gas refrigerant passing through the four-way valve 25 connected to the indoor heat exchanger 13 flows to the third bypass pipe 63.
  • the high temperature refrigerant flows through the heat transfer tube 230 which is in communication with the third bypass tube 63, and transfers the heat of the refrigerant to the adsorbent 120 through the heat transfer tube 230.
  • the refrigerant adsorbed by the heat is separated from the surface of the adsorbent 120, and the adsorbent 120 is in a state capable of being adsorbed again.
  • the refrigerant that has transferred heat through the heat transfer pipe 230 is discharged through the fourth bypass pipe 64 and flows into the outdoor heat exchanger 23.
  • a third bypass pipe (in the inflow region of the third bypass pipe 63 so that a part of the refrigerant flows into the third bypass pipe 63 from the inflow refrigerant pipe 51 along the flow direction of the refrigerant)
  • a third open / close valve 215 is arranged to leave 63 open.
  • the third bypass pipe 63 is closed by the third opening / closing valve 215, and no refrigerant flows through the heat transfer pipe 230 of the heat generating device 200.
  • FIG. 6 is a view showing an air conditioner according to another embodiment of the present invention.
  • the air conditioner 1 according to the embodiment of FIG. 1 has a single outdoor heat exchanger 23, but as shown in FIG. 6, the air conditioner 1 includes a plurality of outdoor heat exchangers 23A and 23B. It can be configured to have). Coupling pipes 70A and 70B are provided corresponding to the outdoor heat exchangers 23A and 23B. In FIG. 6, two outdoor heat exchangers 23A and 23B are illustrated. However, the present disclosure is not limited thereto, and two or more outdoor heat exchangers may be provided.
  • the air conditioner 1 includes a first outdoor heat exchanger 23A and a second outdoor heat exchanger 23B, and the first and second connection pipes 70A and 70B are oil separators 31. Branched between the outlet region of the and the inlet region of the four-way valve 25 is connected to the first and second outdoor heat exchanger (23), respectively.
  • the first and second connection pipes 70A and 70B may be branched into a plurality of branch points P2 provided between the oil separator 31 and the four-way valve 25.
  • the first open / close valve 73A is installed in the first connecting pipe 70A
  • the second open / close valve 73B is installed in the second connecting pipe 70B.
  • defrosting operation may be performed sequentially or only on an outdoor heat exchanger requiring defrosting.
  • the first connection pipe 70A connected to the first outdoor heat exchanger 23 is opened by the first opening / closing valve 73A to open a high temperature and high pressure. Coolant may flow in the first outdoor heat exchanger (23).
  • the second connecting pipe 70B is closed by the second opening / closing valve 73B, and the second outdoor heat exchanger 23 performs heating operation as an evaporator.
  • the other outdoor heat exchanger (23B, 23A) can function as an evaporator, so that the deterioration of the heating capacity during the defrosting operation can be suppressed. have.
  • the arrow shown in FIG. 6 shows the flow of the refrigerant in the defrosting operation on the second outdoor heat exchanger 23 during the heating operation.
  • the solid arrow direction in FIG. 6 indicates heating operation, and the dotted arrow direction indicates defrosting operation.
  • the refrigerant compressed by the compressor 21 passes through the oil separator 31 and the first indoor heat exchanger 13 by the four-way valve 25.
  • the refrigerant cycle circulated in the outdoor expansion device 29, the outdoor heat exchanger 23, the four-way valve 25, the accumulator 27, and the compressor 21 is repeated.
  • the refrigerant is supplied to the compressor 21, the oil separator 31, the second connecting pipe 70B, the second outdoor heat exchanger 23,
  • the refrigerant cycle circulated in the order of the heat generator 100, the accumulator 27, and the compressor 21 is repeated.
  • the heat generator 100 heats the refrigerant through physical adsorption.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

La présente invention concerne un climatiseur. Le climatiseur selon l'invention, dans lequel un échangeur de chaleur intérieur, un dispositif de détente extérieur, un échangeur de chaleur extérieur, un accumulateur, un compresseur, et un séparateur d'huile sont raccordés en séquence, comprend un dispositif de génération de chaleur pour chauffer un réfrigérant s'écoulant depuis le dispositif de détente extérieur vers le compresseur, le dispositif de génération de chaleur comprenant : un adsorbant pour générer de la chaleur par l'adsorption physique du réfrigérant sur celui-ci ; un réservoir comprenant l'adsorbant chargé dans celui-ci ; et un tuyau de transfert de chaleur pour transférer de la chaleur vers l'adsorbant pour régénérer l'adsorbant.
PCT/KR2017/011453 2016-11-02 2017-10-17 Climatiseur WO2018084459A1 (fr)

Applications Claiming Priority (2)

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KR10-2016-0145318 2016-11-02
KR1020160145318A KR102517272B1 (ko) 2016-11-02 2016-11-02 공기조화기

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Publication number Priority date Publication date Assignee Title
CN109539401B (zh) * 2018-11-13 2023-09-12 珠海格力电器股份有限公司 一种空调及控制方法
CN110848884B (zh) * 2019-11-29 2021-06-18 广东美的制冷设备有限公司 空调器、控制方法、控制装置及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0665944B2 (ja) * 1986-01-10 1994-08-24 株式会社日立製作所 冷凍サイクル
JPH0749893B2 (ja) * 1987-10-20 1995-05-31 松下電器産業株式会社 ヒートポンプ式空気調和機
JP2002106982A (ja) * 2000-09-28 2002-04-10 Hitachi Ltd 空気調和機
KR100511287B1 (ko) * 2003-05-01 2005-08-31 엘지전자 주식회사 동시 제상 및 난방 운전이 가능한 공기조화기 및 자체제상 사이클을 구비한 공기조화기용 실외기
KR20130066499A (ko) * 2011-12-12 2013-06-20 삼성전자주식회사 공기조화장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0665944B2 (ja) * 1986-01-10 1994-08-24 株式会社日立製作所 冷凍サイクル
JPH0749893B2 (ja) * 1987-10-20 1995-05-31 松下電器産業株式会社 ヒートポンプ式空気調和機
JP2002106982A (ja) * 2000-09-28 2002-04-10 Hitachi Ltd 空気調和機
KR100511287B1 (ko) * 2003-05-01 2005-08-31 엘지전자 주식회사 동시 제상 및 난방 운전이 가능한 공기조화기 및 자체제상 사이클을 구비한 공기조화기용 실외기
KR20130066499A (ko) * 2011-12-12 2013-06-20 삼성전자주식회사 공기조화장치

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