KR20020014610A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- KR20020014610A KR20020014610A KR1020000047985A KR20000047985A KR20020014610A KR 20020014610 A KR20020014610 A KR 20020014610A KR 1020000047985 A KR1020000047985 A KR 1020000047985A KR 20000047985 A KR20000047985 A KR 20000047985A KR 20020014610 A KR20020014610 A KR 20020014610A
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- Prior art keywords
- heat exchanger
- compressor
- way valve
- refrigerant
- outdoor heat
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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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/043—Condensers made by assembling plate-like or laminated elements
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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
- F25B2400/16—Receivers
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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
Description
본 발명은 공기 조화기에 관한 것이며, 상세하게는 히트 펌프를 이용한 공기 조화기에 관한 것이다.The present invention relates to an air conditioner, and more particularly, to an air conditioner using a heat pump.
주지하는 바와 같이 히트 펌프를 이용한 공기 조화기는 압축기, 4방밸브, 실내 열교환기, 수액기, 팽창밸브, 실외 열교환기 및 상기 4방밸브를 도관으로 순서대로 연결하고, 상기 4방밸브와 압축기를 흡입도관으로 연결하여서 난방(건조포함)운전시에는 4방밸브를 냉매가 실내 열교환기 측으로 흐르도록 조작하여 압축기에서 압축된 고온·고압의 냉매가스를 응축기로 작용하는 실내 열교환기에서 응축하여그 응축열을 실내공기와 열교환시켜 실내공기를 가열하고, 실내 열교환기에서 응축된 고온·고압의 냉매액은 수액기에 일시 저장하였다가 팽창밸브에서 팽창시킨 후 증발기로 작용하는 실외 열교환기에서 외기를 열원으로 하여 증발시켜 저온·저압의 가스상태가 되게 한 후 압축기에 흡입되는 사이클을 반복하는 것이다.As is well known, an air conditioner using a heat pump connects a compressor, a four-way valve, an indoor heat exchanger, a receiver, an expansion valve, an outdoor heat exchanger, and the four-way valve in order with a conduit, and connects the four-way valve and the compressor. In the heating (including drying) operation by connecting to the suction conduit, the 4-way valve is operated so that the refrigerant flows to the indoor heat exchanger side, and the high-temperature and high-pressure refrigerant gas compressed by the compressor is condensed in the indoor heat exchanger acting as a condenser. Heats the indoor air to heat the indoor air, and the high-temperature and high-pressure refrigerant liquid condensed in the indoor heat exchanger is temporarily stored in the receiver, and then expanded in the expansion valve. After evaporating to a low-temperature and low-pressure gas state, the cycle that is sucked into the compressor is repeated.
그리고 냉방(냉장포함)운전시에는 4방밸브를 냉매가 실외 열교환기 측으로 흐르도록 조작하여 압축기에서 압축된 고온·고압의 냉매가스를 응축기로 작용하는 실외 열교환기에서 응축시키고, 실외 열교환기에서 응축된 고온·고압의 냉매액은 수액기에 일시 저장하였다가 팽창밸브에서 팽창시킨 후 증발기로 작용하는 실내 열교환기에서 실내공기와 열교환시켜 실내공기를 냉각하며, 실내 열교환기에서 증발된 저온·저압의 냉매가스는 압축기에 흡입되는 사이클을 반복하는 것이다.During cooling (including refrigeration) operation, the 4-way valve is operated to allow the refrigerant to flow to the outdoor heat exchanger, condensing the high-temperature and high-pressure refrigerant gas compressed by the compressor in the outdoor heat exchanger acting as a condenser, and condensing in the outdoor heat exchanger. The high-temperature and high-pressure refrigerant liquid is temporarily stored in the receiver and expanded in the expansion valve, and then heat-exchanged with the indoor air in an indoor heat exchanger acting as an evaporator to cool the indoor air, and the low-temperature and low pressure refrigerant evaporated in the indoor heat exchanger. The gas is repeated cycles of suction into the compressor.
한편, 상기한 공기 조화기는 난방운전시에 실외 열교환기에서 외기를 열원으로 하여 냉매액이 증발될 때 외기온도가 낮을 때에는 냉매액의 증발이 양호하지 못하여 난방능력이 현저하게 떨어지기 때문에 압축기에 흡입되는 냉매가스의 증발 촉진에 많은 노력을 하고 있다.On the other hand, the air conditioner is sucked into the compressor since the evaporation of the coolant liquid is not good and the heating capacity is remarkably decreased when the coolant liquid is evaporated when the coolant liquid is evaporated by the outdoor heat exchanger as a heat source during the heating operation. Many efforts have been made to promote the evaporation of refrigerant gas.
그 일례로서 일본국 실용신안 출원공고 소 4918927 호 공보에는 냉매회로 중에 2 대의 실내 열교환기를 설치하여 냉방운전시에는 그 중 1 대를 증발기로서 작용하게 하여 냉매를 증발시키고 1 대는 폐쇄하며, 난방운전시에는 2 대의 실내 열교환기를 전부 응축기로 작용하도록 하여 실내공기를 가열하는 것을 개시하고 있으며, 일본국 특허 출원공개 소 5445949 호 공보에는 난방회로 중에 냉매가열기를 설치하여 난방운전시에 증발기로서 겸용하도록 하여 압축기에서 압축된 고온·고압의 냉매가스를 실내 열교환기에서 응축 액화하여 실내를 난방한 다음 난방용 감압기구에서 감압된 냉매액을 냉매가열기에서 증발시키므로서 외기온도가 낮을 때에도 난방능력이 저하되지 않도록 한 것이 개시되어 있으며, 또한 본 발명의 발명자는 압축기, 4방밸브, 실내 열교환기, 냉방용 감압기구, 난방용 감압기구 및 실외 열교환기를 제 1 도관과 냉매가스 흡입관으로 연결한 냉매회로에 있어서, 상기 제 1 도관의 상기 실내 열교환기와 난방용 감압기구 사이에 설치한 제 1 열교환기와, 상기 제 1 도관의 상기 실외 열교환기와 4방밸브 사이에 상기 제 1 열교환기보다 상방에 위치되게 설치되며 상기 제 1 열교환기와 밸브가 설치된 연결관으로 폐회로가 형성되게 연결한 제 2 열교환기를 구비함과 동시에 상기 제 1 및 제 2 열교환기에 작동유체를 충전하여서 상기 실내 열교환기에서 응축 액화된 냉매액을 열원으로 하여 압축기에 유입되는 냉매액 및 냉매가스의 증발을 촉진토록 한 것을 1998 특허출원 제 1344 호로 출원한바 있다.For example, Japanese Utility Model Application Publication No. 4918927 discloses two indoor heat exchangers in a refrigerant circuit, and during cooling operation, one of them acts as an evaporator to evaporate the refrigerant and one to close the heating operation. The city discloses heating of indoor air by making both indoor heat exchangers act as condensers, and Japanese Patent Application Publication No. 5445949 discloses a refrigerant heater in a heating circuit to serve as an evaporator during heating operation. The high temperature and high pressure refrigerant gas compressed by the compressor is condensed and liquefied in an indoor heat exchanger to heat the room, and then the refrigerant pressure decompressed in the heating decompression mechanism is evaporated in the refrigerant heater, thereby reducing the heating capacity even when the outside air temperature is low. The inventors of the present invention also provide a compressor, a four-way valve, and a room. A refrigerant circuit in which a heat exchanger, a cooling pressure reducing device, a heating pressure reducing device, and an outdoor heat exchanger are connected to a first conduit and a refrigerant gas suction pipe, the first heat exchanger provided between the indoor heat exchanger and the heating pressure reducing device of the first conduit. And a second heat exchanger installed between the outdoor heat exchanger and the four-way valve of the first conduit so as to be positioned above the first heat exchanger, and connected to form a closed circuit through a connection pipe provided with the first heat exchanger and the valve. At the same time, the first and second heat exchangers are filled with a working fluid to promote the evaporation of refrigerant liquid and refrigerant gas flowing into the compressor using the refrigerant liquid condensed and liquefied in the indoor heat exchanger as a heat source. Has been filed.
그러나 상기한 일본국 실용신안 출원공고 소 4918927 호는 난방시에 2 대의 실내 열교환기를 응축기로 작용하도록 하여 외기온이 낮을 때 난방능력이 저하되는 것을 방지하고 있지만 이는 압축기의 열원을 이용하여야 하기 때문에 압축기의 용량을 크게 하여야 하므로 설비비와 유지비가 많이 들고, 실내에 설치되는 실내 열교환기의 부피가 커지므로 실내의 점유면적을 많이 차지하여 실내공간의 활용에 제한을 받게 되는 것이고, 또한 일본국 특허출원 공개 소 5445945 호는 난방운전시에 냉매가열기를 증발기로 겸용하도록 되어 있지만 그 냉매가열기의 구체적인 기술수단이 기재되어 있지 않은 바, 증발기의 구조상 부피가 작고 설치가 용이한 전열을 이용할 수밖에 없으므로 유지비가 많이 들 수밖에 없으며, 본 발명자의 선출원도 혹한기에는 보조가열수단을 이용하여야 하므로 구조가 복잡하고 유지비가 많이 드는 문제점이 있게되는 것이다.However, the Japanese Utility Model Application Publication No. 4918927 mentioned above allows two indoor heat exchangers to act as condensers when heating to prevent deterioration of the heating capacity when the outside air temperature is low. Since the capacity of the system must be increased, the cost of equipment and maintenance is high, and the volume of the indoor heat exchanger installed in the room becomes large, thus occupying a large occupied area of the room, thereby limiting the utilization of the indoor space. No. 5445945 is designed to use a refrigerant heater as an evaporator during heating operation, but specific technical means of the refrigerant heater are not described. Therefore, due to the structure of the evaporator, it is necessary to use a small volume and easy to install heat transfer. There is no choice but to, and the applicant of the present invention is also cold in the cold Since the heat means must be used, there is a problem in that the structure is complicated and the maintenance cost is high.
본 발명은 상기한 제 문제점을 감안하여 외기온이 낮을 때 압축기의 용량을 증대시키지 않고 보조 가열수단을 이용하지 않으면서 난방능력을 양호하게 유지할 수 있는 공기 조화기를 제공하는 것이다.SUMMARY OF THE INVENTION In view of the above problems, the present invention provides an air conditioner capable of maintaining a good heating capacity without increasing the capacity of the compressor when the outside air temperature is low and without using auxiliary heating means.
상기한 목적을 달성하기 위하여 본 발명은 압축기(2), 4방밸브(3), 실내 열교환기(4), 팽창밸브(5)(6), 수액기(7), 실외 열교환기(8) 및 상기 4방밸브(3)를 도관(9a~9d)으로 연결하고, 상기 4방밸브(3)와 압축기(2)를 흡입도관(10)으로 연결한 기본 냉매회로(1)와; 상기 수액기(7)에 흡열 열교환기(12)를 내장함과 동시에 상기 실외 열교환기(8)에 가열 열교환기(13)를 형성하여 열매체를 충전함과 동시에 펌프(15)를 설치한 순환도관(14)으로 폐회로가 형성되게 연결한 증발촉진수단(11)으로 구성한 것이다.In order to achieve the above object, the present invention provides a compressor (2), a four-way valve (3), an indoor heat exchanger (4), an expansion valve (5) (6), a receiver (7), an outdoor heat exchanger (8) A basic refrigerant circuit (1) connecting the four-way valve (3) to conduits (9a to 9d) and connecting the four-way valve (3) and the compressor (2) to the suction conduit (10); A circulation conduit in which the endothermic heat exchanger (12) is built in the receiver (7) and the heat exchanger (13) is formed in the outdoor heat exchanger (8) to fill the heating medium and to install the pump (15). (14) consists of evaporation promoting means (11) connected to form a closed circuit.
도 1은 본 발명의 제 1 실시예의 냉매회로도.1 is a refrigerant circuit diagram of a first embodiment of the present invention.
도 2는 본 발명의 제 2 실시예의 요부 단면도.2 is a sectional view of principal parts of a second embodiment of the present invention;
<도면의 주요부분에 대한 부호 설명><Description of Signs of Major Parts of Drawings>
2 : 압축기 3 : 4방밸브 4, 8 : 실내 및 실외 열교환기2: compressor 3: four-way valve 4, 8: indoor and outdoor heat exchanger
7 : 수액기 11 : 증발촉진수단 12 : 흡열 열교환기7 receiver 11 evaporation promoting means 12 endothermic heat exchanger
13 : 가열 열교환기13: heat exchanger
도 1은 본 발명의 제 1 실시예의 냉매회로도로서, 부호 1은 기본 냉매회로로서, 상기 기본냉매회로(1)는 압축기(2), 4방밸브(3), 실내 열교환기(4), 팽창밸브 (5), 수액기(7), 팽창밸브(6), 실외 열교환기(8) 및 상기 4방밸브(3)를 도관(9a ~9d)으로 순서대로 연결하고, 상기 4방밸브(3)와 압축기(2)를 흡입도관(10)으로 연결한 것으로서, 상기 실내 열교환기(4)는 냉·난방하려는 실내, 피건조물 또는 피냉장물을 건조 또는 냉장하려는 창고등의 공기 조화실에 설치하여 응축기 및 증발기로 작용하도록 한 것이다.1 is a refrigerant circuit diagram according to a first embodiment of the present invention, reference numeral 1 denotes a basic refrigerant circuit, and the basic refrigerant circuit 1 includes a compressor 2, a four-way valve 3, an indoor heat exchanger 4, and an expansion. The valve (5), the receiver (7), the expansion valve (6), the outdoor heat exchanger (8) and the four-way valve (3) in order to the conduit (9a ~ 9d) in order, the four-way valve (3 ) And the compressor (2) are connected to the suction conduit (10), the indoor heat exchanger (4) is installed in an air conditioning room such as a room to dry or refrigerate the room to be cooled or heated, to be dried or to be cooled. To act as a condenser and an evaporator.
11은 증발촉진수단으로서, 상기 증발촉진수단(11)은 상기 수액기(7)에 흡열 열교환기(12)를 내장함과 동시에 상기 실외 열교환기(8)의 외기 흡입측에 가열 열교환기(13)를 설치하여 염화칼슘 수용액, 염화나트륨 수용액, 에틸 알콜, 에틸렌 글리콜 등의 열매체를 충전함과 동시에 상기 흡열 열교환기(12) 및 가열 열교환기 (13)를 펌프(15)를 설치한 순환도관(14)으로 폐회로가 형성되게 연결하여서 된 것이다.11 denotes an evaporation promoting means, wherein the evaporation promoting means 11 incorporates an endothermic heat exchanger 12 in the receiver 7 and heat exchanger 13 on the outside air suction side of the outdoor heat exchanger 8. Circulating conduit (14) in which the endothermic heat exchanger (12) and the heat exchanger (13) were pumped (15) while filling the heat medium such as aqueous calcium chloride solution, aqueous sodium chloride solution, ethyl alcohol, ethylene glycol, etc. The closed circuit is formed to connect.
미설명부호 16 및 17은 첵크 밸브이다.Reference numerals 16 and 17 are check valves.
도 2는 본 발명의 제 2 실시예의 요부 단면도로서, 제 1 실시예와 동일한 구성요소는 동일부호를 부여하고 구체적인 설명은 생략하며, 차이되는 점은 제 1 실시예는 실외 열교환기(8)와 가열 열교환기(13)를 별개로 형성하였으나 제 2 실시예는 2중관형 열교환기로 형성하여 실외 열교환기(8)를 내부에 가열 열교환기 (13)를 외부에 설치한 차이밖에 없다.2 is a cross-sectional view of main parts of a second embodiment of the present invention, in which the same components as those in the first embodiment are denoted by the same reference numerals, and detailed descriptions thereof are omitted. The difference between the first embodiment is that of the outdoor heat exchanger 8. Although the heat exchanger 13 was separately formed, the second embodiment is formed by a double tube heat exchanger, and there is only a difference in that the outdoor heat exchanger 8 is installed inside the heat exchanger 13 outside.
다음 작동을 기능별로 설명한다.The following operations are explained by function.
1. 난방운전 또는 냉방운전의 실시1. Conducting heating or cooling operation
난방운전시에는 4방밸브(3)를 냉매가 화살표 실선으로 흐르도록 조작하여 압축기(2)를 구동하면 압축기에서 압축된 고온·고압의 냉매가스는 도관(9b)으로 흐르면서 응축기로 작용하는 실내 열교환기(4)에서 응축되고 그 응축열을 공기 조화실 내의 공기와 열교환시키므로서 실내공기를 가열하여 난방 또는 피건조물의 건조기능을 수행하고, 실내 열교환기(4)에서 응축된 고온·고압의 냉매액은 도관(9c)을 흐르면서 첵크 밸브(16) 및 수액기(7)를 경유하여 팽창밸브(6)에서 팽창되고 증발기로 작용하는 실외 열교환기(8)에 유입되어 외기를 열원으로 하여 증발한 후 도관(9d) 및 4방밸브(3) 및 흡입도관(10)을 경유하여 압축기(2)에 흡입되는 사이클을 반복하는 것으로서 상기와 같이 운전시에는 증발촉진수단(11)의 기능은 펌프(15)의 구동을 하지 않으므로 정지하는 것이다.During the heating operation, the four-way valve 3 is operated so that the refrigerant flows in the solid arrow, and the compressor 2 is driven. The high-temperature and high-pressure refrigerant gas compressed by the compressor flows into the conduit 9b to act as a condenser. And condensed heat in the air conditioning chamber to heat the indoor air to perform heating or drying of the dry matter, and the high-temperature and high-pressure refrigerant liquid condensed in the indoor heat exchanger (4). After flowing through the conduit (9c) through the check valve (16) and the receiver (7) flows into the outdoor heat exchanger (8), which expands in the expansion valve (6) and acts as an evaporator to evaporate the outside air as a heat source The cycle that is sucked into the compressor (2) via the conduit (9d) and the four-way valve (3) and the suction conduit (10) is repeated, the function of the evaporation promoting means 11 during the operation as described above is the pump (15). Stop) Will.
그리고 냉방운전시에는 4방밸브(3)를 냉매가 화살표 점선으로 흐르도록 조작하여 압축기(2)를 구동하면 압축기에서 압축된 고온·고압의 냉매가스는 도관(9d)을 흐르면서 응축기로 작용하는 실외 열교환기(8)에서 응축되고 도관(9c)을 흐르면서 첵크 밸브(17), 수액기(7)를 경유하여 팽창밸브(5)에서 팽창된 후 실내 열교환기(4)에 유입되어 증발되면서 공기 조화실 내의 공기와 열교환하여 냉방기능을 수행하고, 실내 열교환기(4)에서 증발된 저온·저압의 냉매가스는 도관(9b), 4방밸브 (3), 흡입도관(10)을 경유하여 압축기(2)에 흡입되는 사이클을 반복하는 것으로서 상기와 같이 운전시에는 증발촉진수단(11)의 기능도 펌프(15)의 구동을 하지 않으므로 정지하는 것이다.In the cooling operation, the four-way valve 3 is operated to flow the refrigerant by the dotted line of the arrow to drive the compressor 2. When the high-temperature / high-pressure refrigerant gas compressed by the compressor flows through the conduit 9d, it acts as a condenser. Condensed in the heat exchanger (8) and flows through the conduit (9c), expands in the expansion valve (5) via the check valve (17), the receiver (7), flows into the indoor heat exchanger (4), and evaporates the air conditioning. The cooling function is performed by heat exchange with the air in the chamber, and the refrigerant gas of low temperature and low pressure evaporated from the indoor heat exchanger (4) passes through the conduit (9b), the four-way valve (3), and the suction conduit (10). By repeating the cycle sucked in 2), the operation of the evaporation promoting means 11 also stops because the pump 15 does not drive during operation as described above.
2. 증발촉진운전2. Evaporation promotion operation
상기 1 의 난방운전시에 외기온도가 낮을 경우 펌프(15)를 구동하면 수액기 (7) 내의 냉매액의 보유열에 의하여 가열된 흡열 열교환기(12) 내의 열매체가 순환함으로서 열매체와 냉매액의 열교환에 의하여 수액기(7) 내의 냉매액의 온도는 저하됨으로 실외 열교환기(8)에서의 냉매액의 증발이 양호하게 되는 것이다. 한편흡열 열교환기(12)에서 가열된 열매체는 흡열 열교환기(12)와 가열 열교환기(13)의 순환 사이클을 형성하는 바, 상기와 같이 열매체가 순환 사이클을 형성할 때 제 1 실시예에서는 팬(미도시)을 구동하여 가열 열교환기(13)의 보유열을 실외 열교환기 (8)에 방열하고 제 2 실시예에서는 열매체의 보유열과 실외 열교환기(8) 내의 냉매액 또는 습포화 냉매가스와 열교환함으로서 실외 열교환기(8)를 흐르는 냉매액의 증발이 양호하게 되는 것이다.When the outside air temperature is low during the heating operation of 1, when the pump 15 is driven, the heat medium in the endothermic heat exchanger 12 heated by the retaining heat of the coolant liquid in the receiver 7 circulates to heat exchange the heat medium and the coolant liquid. As a result, the temperature of the refrigerant liquid in the receiver 7 is lowered, so that the evaporation of the refrigerant liquid in the outdoor heat exchanger 8 becomes good. On the other hand, the heat medium heated in the endothermic heat exchanger 12 forms a circulating cycle of the endothermic heat exchanger 12 and the heat exchanger 13. As described above, when the heat medium forms the circulating cycle, in the first embodiment, a fan is used. (Not shown) to heat the retaining heat of the heat exchanger 13 to the outdoor heat exchanger 8, and in the second embodiment, the retaining heat of the heat medium and the refrigerant liquid or the wetted refrigerant gas in the outdoor heat exchanger 8 and the like. By exchanging heat, evaporation of the refrigerant liquid flowing through the outdoor heat exchanger 8 becomes satisfactory.
상기와 같이 실외 열교환기(8)에서의 냉매액 등의 증발이 양호하게 되면 건포화 또는 과열 냉매가스가 되고 상기 건포화 또는 과열 냉매가스가 압축기(2)에 흡입됨으로서 외기온이 낮을 경우에도 가열능력이 저하되지 않고 압축기(2)의 습압축이 방지되어 신뢰성이 확보되는 것이다.As described above, when the evaporation of the coolant liquid or the like in the outdoor heat exchanger 8 becomes satisfactory, it becomes a dry or superheated refrigerant gas, and the dry or superheated refrigerant gas is sucked into the compressor 2 so that the heating capacity is low even when the outside air temperature is low. This does not deteriorate, and the wet compression of the compressor 2 is prevented and reliability is ensured.
이상과 같이 본 발명은 수액기에 흡열 열교환기를 내장하고, 상기 흡열 열교환기와 폐회로가 형성되는 가열 열교환기를 실외 열교환기에 접촉하거나 가열 열교환기와 실외 열교환기를 이중 열교환기로 형성하여서 난방운전시에 외기온이 낮을 경우 수액기 내에서 냉매액의 온도를 저하시켜 증발기로 작용하는 실외 열교환기에 공급하고, 흡열 열교환기에서 냉매액의 보유열을 흡열하여 실외 열교환기에 방열함으로서 증발기로 작용하는 실외 열교환기에서의 습포화 냉매가스의 증발이 양호하기 때문에 외기온이 낮을 경우에도 건포화 또는 과열 냉매가스가 압축기에 흡입되어 가열능력을 양호하게 유지하고, 압축기의 습압축이 방지되어 신뢰성이 확보되는 것이다.As described above, the present invention incorporates an endothermic heat exchanger into the receiver, and contacts the heated heat exchanger having the endothermic heat exchanger and the closed circuit with the outdoor heat exchanger, or forms a double heat exchanger with the heat exchanger and the outdoor heat exchanger so that when the outside air temperature is low during heating operation, Wet refrigerant gas in the outdoor heat exchanger acting as an evaporator by lowering the temperature of the refrigerant liquid in the air and supplying it to an outdoor heat exchanger acting as an evaporator, and absorbing the heat of the refrigerant liquid from the endothermic heat exchanger and radiating it to the outdoor heat exchanger. Because of the good evaporation, even when the outside air temperature is low, the saturated or superheated refrigerant gas is sucked into the compressor to maintain a good heating capacity, and the compressor's wet compression is prevented to ensure reliability.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2000-0047985A KR100383854B1 (en) | 2000-08-18 | 2000-08-18 | Air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| KR20020014610A true KR20020014610A (en) | 2002-02-25 |
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| KR100613502B1 (en) * | 2004-12-10 | 2006-08-17 | 엘지전자 주식회사 | Heat pump type air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100486095B1 (en) * | 2002-07-12 | 2005-04-29 | 진금수 | Heat pump system |
| KR100486097B1 (en) * | 2002-07-12 | 2005-04-29 | 진금수 | Heat pump system |
| KR100486099B1 (en) * | 2002-07-12 | 2005-04-29 | 진금수 | Heat pump system |
| KR100486096B1 (en) * | 2002-07-12 | 2005-04-29 | 진금수 | Heat pump system |
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| KR100613502B1 (en) * | 2004-12-10 | 2006-08-17 | 엘지전자 주식회사 | Heat pump type air conditioner |
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