KR100465722B1 - Heat pump system - Google Patents
Heat pump system Download PDFInfo
- Publication number
- KR100465722B1 KR100465722B1 KR10-2002-0081301A KR20020081301A KR100465722B1 KR 100465722 B1 KR100465722 B1 KR 100465722B1 KR 20020081301 A KR20020081301 A KR 20020081301A KR 100465722 B1 KR100465722 B1 KR 100465722B1
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- South Korea
- Prior art keywords
- heat exchanger
- refrigerant
- indoor heat
- indoor
- compressor
- Prior art date
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- 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
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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
- 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
Abstract
본 발명은 냉/난방 및 제습 운전될 수 있는 제습 겸용 히트펌프식 공기조화기에 관한 것으로서, 특히 냉/난방 운전 및 제습 운전시 냉매를 감압시키는 팽창기구를 동일하게 사용하여 비용을 줄일 수 있을 뿐 아니라 작동의 신뢰성을 높일 수 있는 제습 겸용 히트펌프식 공기조화기에 관한 것이다.The present invention relates to a dehumidifying combined heat pump type air conditioner capable of cooling / heating and dehumidifying operation, and in particular, it is possible to reduce costs by using the same expansion mechanism that reduces the refrigerant during cooling / heating operation and dehumidification operation. The present invention relates to a dehumidifying combined heat pump type air conditioner capable of increasing the reliability of operation.
본 발명에 따른 제습 겸용 히트펌프식 공기조화기는 압축기, 실외 열교환기, 팽창수단, 제1,2실내 열교환기로 이루어지되, 상기 제1,2열교환기 사이에 냉매를 감압시키는 팽창수단이 설치됨과 아울러 냉매의 유로를 가변시키는 밸브수단이 설치되어 냉방 운전시 냉매가 압축기, 실외 열교환기, 팽창수단, 제1,2열교환기를 따라 유동되도록 하고, 난방 운전시 냉매가 압축기, 제1,2열교환기, 팽창수단, 실외 열교환기를 따라 유동되도록 하며, 제습 운전시 냉매가 압축기, 실외 열교환기, 제1열교환기, 팽창수단, 제2열교환기를 따라 유동되도록 한다.The dehumidifying combined heat pump type air conditioner according to the present invention includes a compressor, an outdoor heat exchanger, an expansion means, and first and second indoor heat exchangers, and expansion means for depressurizing a refrigerant is installed between the first and second heat exchangers. The valve means for varying the flow path of the refrigerant is installed to allow the refrigerant to flow along the compressor, the outdoor heat exchanger, the expansion means, the first and second heat exchangers during the cooling operation, and during the heating operation, the refrigerant flows through the compressor, the first and second heat exchangers, The expansion means and the outdoor heat exchanger to flow along, and during the dehumidification operation the refrigerant to flow along the compressor, the outdoor heat exchanger, the first heat exchanger, the expansion means, the second heat exchanger.
Description
본 발명은 냉/난방 및 제습 운전될 수 있는 제습 겸용 히트펌프식 공기조화기에 관한 것으로서, 특히 냉/난방 운전 및 제습 운전시 냉매를 감압시키는 팽창기구를 동일하게 사용하여 비용을 줄일 수 있을 뿐 아니라 작동의 신뢰성을 높일 수 있는 제습 겸용 히트펌프식 공기조화기에 관한 것이다.The present invention relates to a dehumidifying combined heat pump type air conditioner capable of cooling / heating and dehumidifying operation, and in particular, it is possible to reduce costs by using the same expansion mechanism that reduces the refrigerant during cooling / heating operation and dehumidification operation. The present invention relates to a dehumidifying combined heat pump type air conditioner capable of increasing the reliability of operation.
도 1 내지 도 3은 종래 기술에 따른 제습 겸용 히트펌프식 공기조화기가 각각 냉방, 난방, 제습 운전되는 경우 냉매의 흐름이 도시된 도면이다.1 to 3 is a view showing the flow of the refrigerant when the dehumidification combined heat pump type air conditioner according to the prior art, respectively, cooling, heating, dehumidification operation.
종래의 기술에 따른 히트펌프식 공기조화기는 도 1 내지 도 3에 도시된 바와 같이 냉매를 압축시키는 압축기(2)와, 상기 압축기(2)와 연결되도록 설치되어 냉매를 실외공기와 열교환시키는 실외 열교환기(4)와, 상기 실외 열교환기(4)와 연결되도록 설치되어 냉/난방 운전시 냉매를 감압시키는 전자팽창밸브(6)가 포함된 실외기와, 상기 전자팽창밸브(6)와 압축기(2) 사이에 설치되어 냉매를 실내공기와 열교환시키는 제1,2실내 열교환기(8,9)와, 상기 제1,2실내 열교환기(8,9) 사이에 설치되어 냉매의 유로를 개폐시키는 개폐밸브(11) 및 제습 운전시 냉매를 감압시키는 보조 모세관(12)이 포함된 실내기로 이루어지되, 각각의 구성 요소들은 냉매관에의해 서로 연결되도록 설치된다.The heat pump type air conditioner according to the prior art is installed to be connected to the compressor (2) for compressing the refrigerant, as shown in Figures 1 to 3, the compressor (2) outdoor heat exchanger to heat exchange the refrigerant with outdoor air And an outdoor unit including an electronic expansion valve 6 installed to be connected to the outdoor heat exchanger 4 to reduce the refrigerant during cooling / heating operation, and the electromagnetic expansion valve 6 and the compressor 2. ) Is installed between the first and second indoor heat exchanger (8,9) for heat exchange between the refrigerant and the indoor air, and the first and second indoor heat exchanger (8,9) to open and close the flow path of the refrigerant. It consists of an indoor unit including a valve 11 and an auxiliary capillary tube 12 for depressurizing the refrigerant during the dehumidification operation, and each component is installed to be connected to each other by the refrigerant tube.
아울러, 상기 히트펌프식 공기조화기는 상기 실외 열교환기(4)와 상기 제1,2실내 열교환기(8,9) 측에 설치되어 각각 실외공기와 실내공기를 송풍시키는 실외팬(미도시)과 실내팬(미도시)과, 상기 압축기(2)의 후단에 설치되어 냉/난방 운전에 따라 상기 압축기(2)에서 토출되는 냉매의 유로를 절환시켜 주는 사방밸브(10)가 더 포함되도록 구성되어 냉/난방 운전 및 제습 운전될 수 있도록 구성된다.In addition, the heat pump type air conditioner is installed on the outdoor heat exchanger (4) and the first and second indoor heat exchangers (8, 9) side and the outdoor fan (not shown) for blowing outdoor air and indoor air, respectively; It is configured to further include an indoor fan (not shown) and a four-way valve 10 installed at the rear end of the compressor 2 to switch the flow path of the refrigerant discharged from the compressor 2 according to the cooling / heating operation. It is configured to be capable of cooling / heating operation and dehumidification operation.
구체적으로, 상기 히트펌프식 공기조화기가 냉방 운전되는 경우 도 1을 참고로 하여 살펴보면, 상기 개폐밸브(11)가 열리도록 작동됨과 아울러 상기 사방밸브(10)에 의해 냉매의 유로가 절환되어 냉매가 상기 압축기(2), 실외 열교환기(4), 전자팽창밸브(6), 제1실내 열교환기(8), 제2실내 실내 열교환기(9)를 순환하도록 하여 실내공기를 냉방시킨다.Specifically, when the heat pump type air conditioner is operated in a cooling manner, referring to FIG. 1, the open / close valve 11 is operated to open and the coolant flow path is switched by the four-way valve 10 to cool the coolant. The indoor air is cooled by circulating the compressor (2), the outdoor heat exchanger (4), the electromagnetic expansion valve (6), the first indoor heat exchanger (8), and the second indoor indoor heat exchanger (9).
여기서, 상기 제1,2실내 열교환기(8,9)는 냉매를 증발시키는 증발기 역할을 수행한다.Here, the first and second indoor heat exchangers 8 and 9 serve as evaporators for evaporating the refrigerant.
또한, 상기 히트펌프식 공기조화기가 난방 운전되는 경우 도 2를 참고로 하여 살펴보면, 상기 개폐밸브(11)가 열리도록 작동됨과 아울러 상기 사방밸브(10)에 의해 냉매의 유로가 절환되어 냉매가 상기 압축기(2), 제2실내 열교환기(9), 제1실내 열교환기(8), 전자팽창밸브(6), 실외 열교환기(4)를 순환하도록 하여 실내공기를 난방시킨다.In addition, when the heat pump type air conditioner is operated by heating, referring to FIG. 2, the open / close valve 11 is operated to open and the flow path of the coolant is switched by the four-way valve 10 to cool the coolant. The indoor air is heated by circulating the compressor (2), the second indoor heat exchanger (9), the first indoor heat exchanger (8), the electromagnetic expansion valve (6), and the outdoor heat exchanger (4).
여기서, 상기 제1,2실내 열교환기(8,9)는 냉매를 응축시키는 응축기 역할을수행한다.Here, the first and second indoor heat exchangers 8 and 9 serve as condensers for condensing the refrigerant.
또한, 상기 히트펌프식 공기조화기가 제습 운전되는 경우 도 3을 참고로 하여 살펴보면, 상기 개폐밸브(11)가 닫히도록 작동됨과 아울러 상기 사방밸브(10)에 의해 냉매의 유로가 절환되어 냉매가 상기 압축기(2), 실외 열교환기(4), 전자팽창밸브(6), 제1실내 열교환기(8), 모세관(12), 제2실내 열교환기(9)를 순환하도록 하여 실내공기를 제습시킨다.In addition, when the heat pump type air conditioner is dehumidified, referring to FIG. 3, the on / off valve 11 is operated to close and the flow path of the coolant is switched by the four-way valve 10 so that the coolant is The indoor air is dehumidified by circulating the compressor (2), the outdoor heat exchanger (4), the electromagnetic expansion valve (6), the first indoor heat exchanger (8), the capillary tube (12), and the second indoor heat exchanger (9). .
여기서, 상기 제1실내 열교환기(8)는 냉매를 응축시키는 응축기 역할을 수행하는 반면, 상기 제2실내 열교환기(9)는 냉매를 증발시키는 증발기 역할을 수행한다.Here, the first indoor heat exchanger 8 serves as a condenser to condense the refrigerant, while the second indoor heat exchanger 9 serves as an evaporator to evaporate the refrigerant.
이때, 실내공기는 상기 제2실내 열교환기(9)를 통과하면서 제습 및 냉각된 다음, 상기 제1실내 열교환기(8)를 통과하면서 난방되어 토출되기 때문에 실내온도를 그대로 유지할 수 있어 사용자에게 쾌적감을 제공할 수 있다.At this time, the indoor air is dehumidified and cooled while passing through the second indoor heat exchanger (9), and then heated and discharged while passing through the first indoor heat exchanger (8) so that the indoor temperature can be maintained as it is and is comfortable for the user. It can provide a sense.
그러나, 종래 기술에 따른 제습 겸용 히트펌프식 공기조화기는 제습 운전시 실내공기의 온도를 그대로 유지하기 위하여 상기 제1,2실내 열교환기가 각각 응축기와 증발기 역할을 수행하도록 상기 제1,2실내 열교환기 사이에 상기 개폐밸브 및 모세관이 설치되는데, 이런 상기 모세관은 냉/난방 운전시 냉매를 감압시키는 전자팽창밸브와 그 역할이 불필요하게 중복되는 문제점이 있다.However, the dehumidifying combined heat pump type air conditioner according to the prior art has the first and second indoor heat exchangers such that the first and second indoor heat exchangers function as the condenser and the evaporator, respectively, in order to maintain the temperature of indoor air during the dehumidification operation. Between the on-off valve and the capillary is installed, the capillary has a problem that the role of the electronic expansion valve for reducing the refrigerant pressure during the cooling / heating operation unnecessary overlap.
본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 냉/난방 운전 및 제습 운전시 냉매의 유로를 가변시킴으로 냉매를 감압시키는 팽창수단을 공용으로 사용할 수 있는 제습 겸용 히트펌프식 공기조화기를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems of the prior art, a dehumidification combined heat pump type air conditioning that can be used in common expansion means for reducing the refrigerant by varying the flow path of the refrigerant during cooling / heating operation and dehumidification operation The purpose is to provide a flag.
도 1은 종래 기술에 따른 제습 겸용 히트펌프식 공기조화기의 냉방 운전시 냉매 흐름이 도시된 도면,1 is a view showing a refrigerant flow during the cooling operation of the dehumidifying combined heat pump type air conditioner according to the prior art,
도 2는 종래 기술에 따른 제습 겸용 히트펌프식 공기조화기의 난방 운전시 냉매 흐름이 도시된 도면,2 is a view showing a refrigerant flow during the heating operation of the dehumidifying combined heat pump type air conditioner according to the prior art,
도 3은 종래 기술에 따른 제습 겸용 히트펌프식 공기조화기의 제습 운전시 냉매 흐름이 도시된 도면,3 is a view showing a refrigerant flow in the dehumidification operation of the dehumidification combined heat pump type air conditioner according to the prior art,
도 4는 본 발명에 따른 제습 겸용 히트펌프식 공기조화기의 냉방 운전시 냉매 흐름이 도시된 도면,4 is a view showing a refrigerant flow during the cooling operation of the dehumidifying combined heat pump type air conditioner according to the present invention;
도 5는 본 발명에 따른 제습 겸용 히트펌프식 공기조화기의 난방 운전시 냉매 흐름이 도시된 도면,5 is a view showing a refrigerant flow during the heating operation of the dehumidifying combined heat pump type air conditioner according to the present invention,
도 6은 본 발명에 따른 제습 겸용 히트펌프식 공기조화기의 제습 운전시 냉매 흐름이 도시된 도면이다.6 is a view showing a refrigerant flow during the dehumidification operation of the dehumidifying combined heat pump type air conditioner according to the present invention.
<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>
52 : 압축기 54 : 실외 열교환기52: compressor 54: outdoor heat exchanger
56 : 전자팽창밸브 58,59 : 제1,2실내 열교환기56: expansion valve 58,59: 1st and 2nd room heat exchanger
60 : 사방밸브 61 : 보조 사방밸브60: four-way valve 61: auxiliary four-way valve
상기한 과제를 해결하기 위한 본 발명에 따른 제습 겸용 히트펌프식 공기조화기는 제습 운전시 냉매를 압축시키는 압축기와, 상기 압축기를 통과한 냉매를 실외공기와 열교환시켜 응축시키는 실외 열교환기와, 상기 실외 열교환기를 통과한 냉매를 실내공기와 열교환시켜 응축시키는 제1실내 열교환기와, 상기 제1실내 열교환기를 통과한 냉매를 감압시키는 팽창수단과, 상기 팽창수단을 통과한 냉매를 실내공기와 열교환시켜 증발시키는 동시에 실내공기를 제습시키는 제2실내 열교환기와, 상기 제1실내 열교환기와 제2실내 열교환기 사이에 설치되어 제습 운전시 냉매가 상기 제1실내 열교환기와 팽창수단과 제2실내 열교환기를 따라 유동되도록 하고, 냉방 운전시 냉매가 상기 팽창수단과 상기 제1실내 열교환기와 제2실내 열교환기를 따라 유동되도록 하며, 난방 운전시 냉매가 상기 제2실내 열교환기와 제1실내 열교환기와 팽창수단을 따라 유동되도록 냉매의 유로를 가변시키는 밸브수단으로 구성된다.The dehumidifying combined heat pump type air conditioner according to the present invention for solving the above problems is a compressor for compressing a refrigerant during a dehumidification operation, an outdoor heat exchanger for condensing the refrigerant passing through the compressor with outdoor air, and the outdoor heat exchanger. A first indoor heat exchanger for condensing the refrigerant passing through the air with the indoor air, an expansion means for depressurizing the refrigerant passing through the first indoor heat exchanger, and a refrigerant passing through the expansion means for heat exchange with the indoor air to evaporate A second indoor heat exchanger for dehumidifying indoor air, and installed between the first indoor heat exchanger and the second indoor heat exchanger to allow refrigerant to flow along the first indoor heat exchanger, the expansion means, and the second indoor heat exchanger during the dehumidification operation, During the cooling operation, the refrigerant flows along the expansion means, the first indoor heat exchanger, and the second indoor heat exchanger. And, during the heating operation so that the refrigerant flowing along the second indoor heat exchanger and the first indoor heat exchanger, an expansion means consists of a valve means for varying the flow path of the refrigerant.
이하, 본 발명의 실시 예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 4 내지 도 6은 본 발명에 따른 제습 겸용 히트펌프식 공기조화기가 각각 냉방, 난방, 제습 운전되는 경우 냉매의 흐름이 도시된 도면이다.4 to 6 is a view showing the flow of the refrigerant when the dehumidification combined heat pump type air conditioner according to the present invention, respectively, cooling, heating, dehumidification operation.
상기 본 발명에 따른 제습 겸용 히트펌프식 공기조화기는 도 4 내지 도 6에 도시된 바와 같이 냉매를 압축시키는 압축기(52)와, 상기 압축기(52) 선단에 설치되어 냉/난방시 상기 압축기(52)에서 토출되는 냉매의 유로를 가변시키는 사방밸브(60)와, 상기 압축기(52)와 연결되어 냉매를 실외공기와 열교환시키는 실외 열교환기(54)가 포함된 실외기와, 상기 압축기(52)와 연결되도록 설치되어 냉매를 실내공기와 열교환시키는 제1,2실내 열교환기(58,59) 및 상기 제1,2실내 열교환기(58,59) 사이에 설치되어 냉매를 감압시키는 전자팽창밸브(56)와, 냉/난방 운전시 및 제습 운전시 냉매의 유로를 가변시키는 보조 사방밸브(61)가 포함된 실내기로 이루어지되, 각각의 구성 요소들은 냉매관에 의해 서로 연결되도록 설치된다.The dehumidifying combined heat pump type air conditioner according to the present invention is a compressor 52 for compressing a refrigerant as shown in FIGS. 4 to 6, and is installed at the tip of the compressor 52 to cool / heat the compressor 52. The outdoor unit including a four-way valve 60 for varying the flow path of the refrigerant discharged from the), and an outdoor heat exchanger (54) connected to the compressor (52) to heat exchange the refrigerant with outdoor air, and the compressor (52) An electronic expansion valve 56 installed between the first and second indoor heat exchangers 58 and 59 and the first and second indoor heat exchangers 58 and 59 that is installed to be connected to exchange heat with the indoor air. ), And an indoor unit including an auxiliary four-way valve 61 for varying the flow path of the refrigerant during the cooling / heating operation and the dehumidification operation, wherein each component is installed to be connected to each other by the refrigerant pipe.
아울러, 상기 히트펌프식 공기조화기는 상기 실외 열교환기(54)와 상기 제1,2실내 열교환기(58,59) 측에 설치되어 각각 실외공기와 실내공기를 송풍시키는 실외팬(미도시)과 실내팬(미도시)이 더 포함되도록 구성된다.In addition, the heat pump type air conditioner is installed on the outdoor heat exchanger 54 and the first and second indoor heat exchangers (58, 59) side and the outdoor fan (not shown) for blowing outdoor air and indoor air, respectively; It is configured to further include an indoor fan (not shown).
이때, 상기 보조 사방밸브(61)는 상기 제1,2실내 열교환기(58,59)와 전자팽창밸브(56) 및 실외 열교환기(54) 사이에서 냉매의 유로를 가변시키도록 설치되며, 구체적으로 제습 운전시 상기 제1실내 열교환기(58), 전자팽창밸브(56), 제2실내 열교환기(59)를 통과하도록 하고, 냉방 운전시 상기 전자팽창밸브(56), 제1실내 열교환기(58), 제2실내 열교환기(59)를 통과하도록 하며, 난방 운전시 상기 제2실내 열교환기(59), 제1실내 열교환기(58), 전자팽창밸브(56)를 통과하도록 한다.At this time, the auxiliary four-way valve 61 is installed to vary the flow path of the refrigerant between the first and second indoor heat exchangers (58, 59), the electromagnetic expansion valve 56 and the outdoor heat exchanger (54), The first indoor heat exchanger 58, the electromagnetic expansion valve 56, the second indoor heat exchanger 59 passes through the dehumidification operation, and the electromagnetic expansion valve 56 and the first indoor heat exchanger during cooling operation. (58), and passes through the second indoor heat exchanger (59), and passes through the second indoor heat exchanger (59), the first indoor heat exchanger (58), and the electromagnetic expansion valve (56) during heating operation.
물론, 상기 전자팽창밸브(56)는 냉매의 유량을 조절할 수 있을 뿐 아니라 상기 실외팬은 풍량을 조절할 수 있으며, 상기 압축기(52)는 입력 주파수에 따라 냉매압축용량을 가변시킬 수 있다.Of course, the electronic expansion valve 56 may not only control the flow rate of the refrigerant, but also the outdoor fan may adjust the air volume, and the compressor 52 may vary the refrigerant compression capacity according to the input frequency.
상기와 같이 구성된 본 발명의 동작을 살펴보면 다음과 같다.Looking at the operation of the present invention configured as described above are as follows.
먼저, 히트펌프식 공기조화기가 냉방 운전되는 경우 도 4를 참고로 하여 살펴보면, 상기 사방밸브(60) 및 보조 사방밸브(61)에 의해 냉매의 유로가 절환되는 동시에 상기 압축기(52)가 작동됨에 따라 냉매는 상기 압축기(52), 실외 열교환기(54), 전자팽창밸브(56), 제1실내 열교환기(58), 제2실내 열교환기(59)를 따라 순환되며 실내공기를 냉방하게 된다.First, when the heat pump type air conditioner is operated in a cooling manner, referring to FIG. 4, the compressor 52 is operated while the flow path of the refrigerant is switched by the four-way valve 60 and the auxiliary four-way valve 61. Accordingly, the refrigerant is circulated along the compressor 52, the outdoor heat exchanger 54, the electromagnetic expansion valve 56, the first indoor heat exchanger 58, and the second indoor heat exchanger 59, thereby cooling indoor air. .
이때, 상기 제1,2실내 열교환기(58,59)는 냉매를 증발시키는 증발기 역할을 수행하고, 상기 실외 열교환기(54)는 응축기 역할을 수행한다.In this case, the first and second indoor heat exchangers 58 and 59 serve as an evaporator for evaporating refrigerant, and the outdoor heat exchanger 54 serves as a condenser.
한편, 히트펌프식 공기조화기가 난방 운전되는 경우 도 5를 참고로 하여 살펴보면, 상기 사방밸브(60) 및 보조 사방밸브(61)에 의해 냉매의 유로가 절환되는 동시에 상기 압축기(52)가 작동됨에 따라 냉매는 상기 압축기(52), 제2실내 열교환기(59), 제1실내 열교환기(58), 전자팽창밸브(56), 실외 열교환기(54)를 따라 순환되며 실내공기를 난방하게 된다.On the other hand, when the heat pump type air conditioner is operated by heating, referring to Figure 5, the four-way valve 60 and the auxiliary four-way valve 61 is the refrigerant flow path is switched at the same time the compressor 52 is operated Accordingly, the refrigerant is circulated along the compressor 52, the second indoor heat exchanger 59, the first indoor heat exchanger 58, the electromagnetic expansion valve 56, and the outdoor heat exchanger 54, thereby heating indoor air. .
이때, 상기 제1,2실내 열교환기(58,59)는 냉매를 응축시키는 응축기 역할을 수행하고, 상기 실외 열교환기(54)는 증발기 역할을 수행한다.In this case, the first and second indoor heat exchangers 58 and 59 serve as a condenser to condense the refrigerant, and the outdoor heat exchanger 54 serves as an evaporator.
한편, 히트펌프식 공기조화기가 제습 운전되는 경우 도 6을 참고로 하여 살펴보면, 상기 사방밸브(60) 및 보조 사방밸브(61)에 의해 냉매의 유로가 절환되는 동시에 상기 압축기(52)가 작동됨에 따라 냉매는 상기 압축기(52), 실외 열교환기(54), 제1실내 열교환기(58), 전자팽창밸브(56), 제2실내 열교환기(59)를 따라 순환되며 실내공기를 제습하게 된다.Meanwhile, when the heat pump type air conditioner is dehumidified, referring to FIG. 6, the compressor 52 is operated while the flow path of the refrigerant is switched by the four-way valve 60 and the auxiliary four-way valve 61. Accordingly, the refrigerant is circulated along the compressor 52, the outdoor heat exchanger 54, the first indoor heat exchanger 58, the electromagnetic expansion valve 56, and the second indoor heat exchanger 59 to dehumidify the indoor air. .
이때, 상기 제1실내 열교환기(58)는 냉매를 응축시키는 응축기 역할을 수행하는 반면, 상기 제2실내 열교환기(59)는 냉매를 증발시키는 증발기 역할을 수행하기 때문에 실내공기는 상기 제2실내 열교환기(59)를 통과하면서 제습 및 냉각된 다음, 상기 제1실내 열교환기(58)를 통과하면서 난방되어 토출되기 때문에 실내온도를 그대로 유지할 수 있어 사용자에게 쾌적감을 제공할 수 있다.In this case, the first indoor heat exchanger 58 serves as a condenser to condense the refrigerant, whereas the second indoor heat exchanger 59 serves as an evaporator to evaporate the refrigerant, so that indoor air is in the second room. After dehumidifying and cooling while passing through the heat exchanger (59), and then heated and discharged while passing through the first indoor heat exchanger (58), the indoor temperature can be maintained as it is, thereby providing comfort to the user.
그리고, 상기 실외 열교환기(54)는 응축기 역할을 수행한다.In addition, the outdoor heat exchanger 54 serves as a condenser.
물론, 상기 제1실내 열교환기(58)에서 응축열과 상기 제2실내 열교환기(59)에서 증발열이 동일하도록 상기 압축기(52)의 냉매 압축 용량이 가변되도록 조절될 뿐 아니라 상기 실외팬의 풍량이 가변되도록 조절된다.Of course, the refrigerant compression capacity of the compressor 52 is adjusted so that the heat of condensation in the first indoor heat exchanger 58 and the heat of evaporation in the second indoor heat exchanger 59 are not only variable, but also the air volume of the outdoor fan. It is adjusted to be variable.
상기와 같이 구성되는 본 발명에 따른 제습 겸용 히트펌프식 공기조화기는 제1실내 열교환기와 제2실내 열교환기 사이에 냉매의 유로를 가변시키는 보조 사방밸브 및 냉매를 감압시키는 전자팽창밸브가 설치되기 때문에 냉/난방 운전 및 제습 운전시 냉매의 유로를 가변시킴으로 냉매를 감압시키는 팽창수단을 공용으로 사용할 수 있어 제품의 비용을 줄일 수 있을 뿐 아니라 제습 운전시 제1실내 열교환기에서 증발열과 제2실내 열교환기에서 응축열이 같아지도록 전자팽창밸브가 냉매의 유량을 조절할 수 있으므로 제습 운전시 실내 온도를 동일하게 유지할 수 있어 사용자에게 쾌적감을 제공할 수 있는 이점이 있다.The dehumidifying combined heat pump type air conditioner according to the present invention configured as described above is provided between the first indoor heat exchanger and the second indoor heat exchanger, and an auxiliary four-way valve for varying the flow path of the refrigerant and an electronic expansion valve for reducing the refrigerant are installed. Expansion and cooling means for reducing the refrigerant pressure can be used in common by varying the refrigerant flow path during cooling / heating operation and dehumidification operation. Since the expansion valve can adjust the flow rate of the refrigerant so that the heat of condensation in the air is the same, there is an advantage in that the room temperature can be maintained at the same time during the dehumidification operation to provide comfort to the user.
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| KR10-2002-0081301A KR100465722B1 (en) | 2002-12-18 | 2002-12-18 | Heat pump system |
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| KR102528077B1 (en) * | 2022-10-04 | 2023-05-04 | 강원경 | Air conditioning and dehumidification system using heat pump |
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| KR102037253B1 (en) | 2017-11-23 | 2019-10-28 | 엘지전자 주식회사 | An air conditioner and a method for controlling the same |
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