KR101461599B1 - an air conditioner which through modification defrosting and efficiency ompressor - Google Patents

an air conditioner which through modification defrosting and efficiency ompressor Download PDF

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KR101461599B1
KR101461599B1 KR1020130074294A KR20130074294A KR101461599B1 KR 101461599 B1 KR101461599 B1 KR 101461599B1 KR 1020130074294 A KR1020130074294 A KR 1020130074294A KR 20130074294 A KR20130074294 A KR 20130074294A KR 101461599 B1 KR101461599 B1 KR 101461599B1
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South Korea
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supplied
compressor
refrigerant
heat
heat exchanger
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KR1020130074294A
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Korean (ko)
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나영수
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나영수
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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
    • 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
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • 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
    • F25B2400/23—Separators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to an air conditioner. A low-temperature refrigerant passing through an inflation valve is supplied to a first heat exchanger closely welded to the exterior of a high pressure pipe to exchange heat with a high-temperature refrigerant passing through a compressor. The refrigerant is supplied to the front end of an outdoor unit after the heat exchange if the air conditioner is conducting a heating operation. The low-temperature refrigerant passing through the outdoor unit is sequentially supplied to a second high pressure pipe and a first heat exchanger to engage in another heat exchange process then be supplied to an inlet of the compressor. Accordingly, the air conditioner lowers the pressure level of the compressor as well as defrosting the surface to lower the power consumption and makes the operation of the compressor to be smoothly conducted at a sub-zero temperature, thereby increasing the defrosting and compression efficiency.

Description

제상 및 압축효율이 개선되는 공기조화기{an air conditioner which through modification defrosting and efficiency ompressor}An air conditioner which improves defrosting and compression efficiency through defrosting and efficiency ompressor,

본 발명은 팽창밸브를 통과한 저온의 냉매가 압축기를 통과한 고온의 냉매와 열전달 되도록 고압관의 외측에 밀착용접되는 제1열교환기에 공급되어 열전달된 후 실외기 전단에 공급토록 설치되며, 상기 실외기를 통과한 저온의 냉매가 제1열교환기에 공급되어 열전달된 후 압축기의 유입측에 공급토록 설치되어 제상은 물론 압축기의 고압도를 낮추어 소비전력을 감소시키면서 영하권에서 압축기의 가동이 용이하도록 하는 제상 및 압축효율이 개선되는 공기조화기에 관한 것이다.The present invention is characterized in that the low-temperature refrigerant passing through the expansion valve is supplied to a first heat exchanger welded to the outside of the high-pressure pipe so as to be heat-exchanged with the high-temperature refrigerant passed through the compressor, and is then supplied to the front end of the outdoor unit after being heat- The low temperature refrigerant is supplied to the first heat exchanger and then supplied to the inflow side of the compressor to reduce the high pressure of the compressor as well as the defrost, thereby reducing the power consumption and facilitating the operation of the compressor in the sub- And an air conditioner in which compression efficiency is improved.

일반적으로 히트펌프는, 실내기, 팽창유니트, 실외기, 압축기, 및 사방밸브를 포함하는 구성으로 동절기 난방 회로로 작동하는 경우 실외기로 유입되는 공기의 습도가 높고 온도가 낮게 되면 실외기에 착상이 발생하여 열교환기의 기능을 상실하게 된다. Generally, the heat pump includes an indoor unit, an expansion unit, an outdoor unit, a compressor, and a four-way valve. When the outdoor unit is operated in winter season, if the humidity of the air flowing into the outdoor unit is high and the temperature is low, The function of the machine is lost.

이러한 경우 실외기의 제상이 요구되며 히트펌프를 냉방회로로 가동하여 실외기를 응축기로, 실내기를 증발기로 운전함으로써 고온, 고압의 액체냉매가 실외기로 흘러가도록 하여 실외기에 부착된 서리를 제거하는 제상 방법을 사용한다. In this case, defrosting of the outdoor unit is required, and the defrosting method in which the outdoor unit is operated as a condenser and the indoor unit is operated as an evaporator, the high-temperature and high-pressure liquid refrigerant flows to the outdoor unit, use.

그러나, 이러한 경우 실내기는 증발기로 작동하기 때문에 더 이상의 실내 난방이 불가능해 지는 문제점이 있는 것이다.However, in this case, since the indoor unit operates as an evaporator, it is impossible to further heat the room.

이와같은 문제점을 개선하기 위하여 특허 제712196호에 히트펌프의 기술이 제시되고 있으며 그 구성은 도1에서와 같이, 히트펌프가 난방 회로로 작동하는 경우 압축기(200)를 나온 고온, 고압의 냉매는 사방밸브(210)와 제어밸브(250)를 통해 응축기로 동작하는 실내기 코일(320)로 유입되고 실내기 송풍기(300)의 동작에 의해 실내 난방이 이루어진다.In order to solve such a problem, Japanese Patent No. 712196 discloses a technology of a heat pump. As shown in FIG. 1, when the heat pump operates as a heating circuit, the high temperature and high pressure refrigerant discharged from the compressor 200 Flows into the indoor unit coil 320 which operates as a condenser through the four-way valve 210 and the control valve 250 and is heated by the operation of the indoor air blower 300.

그리고, 실내기 코일(320)을 통과한 냉매는 난방 팽창밸브(230)에서 감압된 후 증발기로 작동하는 실외기 주코일(220)로 유입되고 실외기 송풍기(270)의 동작에 의해 냉매 증발이 원활하게 수행되며, 실외기 주코일(220)을 통과한 냉매는 사방밸브(210)와 어큐뮬레이터(280)를 거쳐 다시 압축기(200)로 유입되는 과정을 거쳐 난방 운전이 완성된다.The refrigerant having passed through the indoor unit coil 320 is depressurized by the heat expansion valve 230 and then flows into the outdoor main coil 220 operated as an evaporator and the refrigerant evaporation is smoothly performed by the operation of the outdoor air blower 270 And the refrigerant having passed through the outdoor coil main coil 220 flows into the compressor 200 through the four-way valve 210 and the accumulator 280 to complete the heating operation.

더하여, 사방밸브(210)의 전환에 의해 압축기(200)를 나온 고온, 고압의 냉매 일부는 실외기 주코일(220)로 유입되어 실외기 주코일(220) 표면에 착상된 서리를 녹이고, 동시에 압축기(200)를 나온 고온 고압 냉매의 일부는 실내기 코일(320)로 유입되어 제상과 실내 난방을 동시에 수행하며, 실외기 주코일(220)을 통과한 냉매와 실내기 코일(320)을 통과한 냉매는 난방 팽창밸브(235) 전단에서 합쳐진 후 난방 팽창밸브(235)와 제어밸브(250)를 거쳐 증발기 역할을 하는 실외기 보조코일(260)로 유입되고, 실외기 보조코일(260)에서 증발된 냉매는 다시 제어밸브(250)와 사방밸브(210), 어큐뮬레이터(280)를 거쳐 다기 압축기(200)로 유입되며 제상 및 난방 운전이 완성되는 것이다.In addition, a portion of the high-temperature and high-pressure refrigerant discharged from the compressor 200 through the four-way valve 210 flows into the outdoor coil main coil 220 to melt the frost on the surface of the outdoor coil main coil 220, The refrigerant that has passed through the outdoor coil main coil 220 and the refrigerant that has passed through the indoor unit coil 320 is heated and expanded The refrigerant evaporated in the outdoor unit auxiliary coil 260 flows into the outdoor unit auxiliary coil 260 through the heating expansion valve 235 and the control valve 250 and then flows into the outdoor unit auxiliary coil 260. Then, The refrigerant flows into the multi-stage compressor 200 via the four-way valve 250, the four-way valve 210 and the accumulator 280, and defrost and heating operations are completed.

그러나, 상기와 같은 히트펌프는, 신속한 제상이 힘들어 혹한기나 극한의 온도조건에서 사용이 힘들게 되며, 계절에 따른 냉매의 부피변화에 용이하게 대처하지 못하여 균일한 압축효율의 유지가 힘들게 되고, 제상과 난방이 동시에 이루어져 원하는 제상 또는 난방효율을 가져올 수 없게 되는 단점이 있는 것이다.However, the above-described heat pump is difficult to use in a cold or extreme temperature condition due to the difficulty of rapid defrosting, and it can not easily cope with the volume change of the refrigerant according to the season, so that it is difficult to maintain uniform compression efficiency. The heating is performed at the same time and the desired defrosting or heating efficiency can not be obtained.

상기와 같은 종래의 문제점들을 개선하기 위한 본 발명의 목적은, 압축기의 과열시 온도를 낮추도록 하여 압축기의 효율적인 활용이 가능토록 하고, 압축기의 고압도를 낮추어 소비전력을 감소시키면서 영하권에서 압축기의 기동이 용이하도록 하며, 효율적인 제상이 가능하여 냉동싸이클의 원활한 동작이 가능토록 되고, 냉,온수를 사용하여 냉,난방이 원활하게 수행되도록 하는 제상 및 압축효율이 개선되는 공기조화기를 제공하는 데 있다.SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the prior art by providing a compressor capable of reducing the temperature at the time of overheating of the compressor, making efficient use of the compressor, lowering the high- The present invention provides an air conditioner in which defrosting for smoothly performing cooling and heating by using cold and hot water and improvement of compression efficiency are provided so that the defrosting can be performed easily, .

본 발명은 상기 목적을 달성하기 위하여, 팽창밸브을 통과한 저온의 냉매가 압축기를 통과한 고온의 냉매와 열전달 되도록 고압관의 외측에 밀착용접되는 제1열교환기에 공급되어 열전달된 후 실외기 전단에 공급토록 설치되며, 상기 실외기를 통과한 저온의 냉매가 사방밸브를 통하여 실내기에 공급되는 고온의 냉매와 1차열교환된 후 제1열교환기에 공급 2차 열전달되고 2차 열전달된 냉매가 압축기의 유입측에 공급토록 설치되는 제상 및 압축효율이 개선되는 공기조화기를 제공한다.In order to accomplish the above object, the present invention provides a refrigerant compressor comprising: a compressor for compressing refrigerant, which is supplied to a first heat exchanger welded to the outside of a high-pressure pipe so as to be heat-exchanged with a refrigerant having a low temperature passing through an expansion valve, And the low-temperature refrigerant passing through the outdoor unit is subjected to primary heat exchange with the high-temperature refrigerant supplied to the indoor unit through the four-way valve, and then supplied to the first heat exchanger, and the secondary heat-transferred refrigerant is supplied to the inflow side of the compressor The present invention provides an air conditioner having improved defrosting and compression efficiency.

그리고, 본 발명은 열교환기에 연결되는 출수관을 이중관으로 형성하여 제2열교환기에 열량을 공급토록 설치되고, 상기 제2열교환기는 난방시 팽창밸브에서 공급되는 저온의 냉매가 공급되어 열교환된 후 실외기의 전단에 공급토록 설치되는 제상 및 압축효율이 개선되는 공기조화기를 제공한다.According to another aspect of the present invention, there is provided an air conditioner, comprising: a water pipe connected to a heat exchanger formed in a double pipe to supply heat to a second heat exchanger, wherein the second heat exchanger is supplied with low- The defroster is installed to be supplied to the front end and the air conditioner is improved in compression efficiency.

또한, 본 발명은 팽창밸브의 후단이 압축기의 유입측과 연결되어 냉방시 팽창밸브를 통과한 저온의 냉매가 압축기에 공급토록 설치되는 제상 및 압축효율이 개선되는 공기조화기를 제공한다.The present invention also provides an air conditioner in which the rear end of the expansion valve is connected to the inflow side of the compressor so that the low temperature refrigerant that has passed through the expansion valve during cooling is supplied to the compressor, and the defrosting and compression efficiency are improved.

이상과 같이 본 발명에 의하면, 압축기의 과열시 온도를 낮추도록 하여 압축기의 효율적인 활용이 가능하고, 압축기의 고압도를 낮추어 소비전력을 감소시키면서 영하권에서 압축기의 가동이 용이하며, 자동화에 의한 제상이 가능하여 냉동싸이클의 원활한 동작이 가능하고, 냉,온수를 사용하여 냉,난방이 원활하게 수행되는 효과가 있는 것이다.As described above, according to the present invention, it is possible to efficiently utilize the compressor by lowering the temperature at the time of overheating of the compressor, reduce the high pressure of the compressor to reduce the power consumption, So that the refrigerating cycle can be smoothly operated, and cooling and heating can be smoothly performed using cold and hot water.

도1은 종래의 제상기능을 갖는 냉난방기를 도시한 회로도이다.
도2는 본 발명에 따른 공기조화기를 도시한 회로도이다.1 is a circuit diagram showing a conventional air conditioner having a defrost function.
2 is a circuit diagram showing an air conditioner according to the present invention.

이하, 첨부된 도면에 의거하여 본 발명의 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도2는 본 발명에 따른 공기조화기를 도시한 회로도이다.2 is a circuit diagram showing an air conditioner according to the present invention.

본 발명은, 압축기(10)에서 공급되는 냉매가 사방밸브(12)를 통하여 실내기(20) 또는 실외기(30)로 향하도록 설치된다.The present invention is such that the refrigerant supplied from the compressor (10) is directed to the indoor unit (20) or the outdoor unit (30) through the four - way valve (12).

이때, 상기 압축기(10)에 연결되는 실내기(20)는, 난방시 실내에 열량을 공급하는 응축기의 역활을 수행하고, 냉방시 실내에서 열량을 흡수토록 하는 증발기의 역활을 수행토록 설치된다.At this time, the indoor unit 20 connected to the compressor 10 is installed to perform a role of a condenser for supplying heat to the room during heating, and an evaporator for absorbing heat in the room during cooling.

그리고, 상기 실내기(20) 또는 실외기(30)를 통과한 냉매가 팽창밸브(40)를 통과한 후 실외기(30) 또는 실내기(20)로 향하도록 설치된다.The refrigerant that has passed through the indoor unit 20 or the outdoor unit 30 is directed to the outdoor unit 30 or the indoor unit 20 after passing through the expansion valve 40.

더하여, 상기 실외기(30) 또는 실내기(20)를 통과한 냉매는 수액분리기(60)를 통과한 후 압축기(10)에 재공급토록 설치된다.In addition, the refrigerant having passed through the outdoor unit 30 or the indoor unit 20 is installed to be supplied to the compressor 10 after passing through the liquid separator 60.

이때, 상기 수액분리기(60)는, 실내기(20)를 통과하는 냉매라인이 내측을 통과하도록 설치되어 수액분리기에 냉매의 열량을 공급토록 설치된다.At this time, the liquid separator (60) is installed so that the refrigerant line passing through the indoor unit (20) passes through the inside of the indoor unit (20) and supplies the heat amount of the refrigerant to the liquid separator.

그리고, 상기 실내기에는 수조(80)에 구비되는 입수관(81) 및 출수관(83)이 연결되어 실내기의 열량을 수조에 전달토록 설치된다.The indoor unit is connected to a water inlet pipe (81) and a water outlet pipe (83) provided in the water tank (80) so as to transmit the amount of heat of the indoor unit to the water tank.

또한, 상기 팽창밸브(40)을 통과한 저온의 냉매가 압축기(10)를 통과한 고온의 냉매와 열전달 되도록 압축기에 연결되는 제1고압관(14)의 외측에 밀착용접되는 제1열교환기(91)가 설치된다.A first heat exchanger (not shown) welded to the outside of the first high-pressure pipe 14 connected to the compressor so that the low-temperature refrigerant passing through the expansion valve 40 is heat-transferred to the high-temperature refrigerant passed through the compressor 10 91 are installed.

이때, 상기 팽창밸브(40)에서 공급되는 냉매가 제1열교환기(91)에 공급되어 열교환된 후 실외기(30)의 유입측에 공급토록 설치되는 제1제상라인(D1)이 구비된다.At this time, a first defrosting line (D1) is provided which is installed to be supplied to the inflow side of the outdoor unit (30) after the refrigerant supplied from the expansion valve (40) is supplied to the first heat exchanger (91)

그리고, 상기 출수관(83)에 이중관으로 이루어진 제2열교환기(93)를 설치한다.A second heat exchanger (93) made of a double tube is installed in the water pipe (83).

이때, 상기 팽창밸브(40)에서 공급되는 냉매가 제2열교환기(93)에 공급되어 열교환된 후 실외기(30)의 유입측에 공급토록 되는 제2제상라인(D2)이 구비된다.At this time, the second defrosting line D2 is provided which is supplied to the inflow side of the outdoor unit 30 after the refrigerant supplied from the expansion valve 40 is supplied to the second heat exchanger 93 to be heat-exchanged.

더하여, 상기 실외기(30)를 통과한 저온의 냉매가 사방밸브(12)를 통과한 제2고압관(16)에 연결되면서 이중관 형상을 갖도록 설치되는 제3열전달기(95)를 통과한 후 제1열교환기(91)를 거쳐 압축기(10)의 유입측에 공급되는 저온제어라인(L1)이 구비된다.In addition, the low-temperature refrigerant having passed through the outdoor unit 30 is connected to the second high-pressure pipe 16 having passed through the four-way valve 12, and passes through the third heat exchanger 95, Temperature control line L1 to be supplied to the inflow side of the compressor 10 via the first heat exchanger 91 is provided.

또한, 상기 팽창밸브(40)의 후단이 압축기(10)의 유입측과 연결되는 고온제어라인(H1)이 구비되는 구성으로 이루어 진다.The high temperature control line H1 is connected to the inflow side of the compressor 10 at the rear end of the expansion valve 40.

상기와 같은 구성으로 이루어진 본 발명의 동작을 설명한다.The operation of the present invention constructed as described above will be described.

도2에서 도시한 바와같이 본 발명은, 압축기(10)에서 공급되는 냉매가 사방밸브(12)를 통하여 실내기(20) 또는 실외기(30)로 선택적으로 향하도록 할 때 실내에 차가운 공기 및 가열된 공기를 공급토록 설치되어 냉방 및 난방의 기능을 수행하게 된다.2, when the refrigerant supplied from the compressor 10 is selectively directed to the indoor unit 20 or the outdoor unit 30 through the four-way valve 12, Air is supplied to perform the function of cooling and heating.

즉, 상기 실내기(20) 또는 실외기(30)를 통과한 냉매가 팽창밸브(40)를 통과한 후 실외기(30) 또는 실내기(20)로 향하도록 할 때 난방 및 냉방의 기능을 수행하게 된다.That is, when the refrigerant that has passed through the indoor unit 20 or the outdoor unit 30 is directed to the outdoor unit 30 or the indoor unit 20 after passing through the expansion valve 40, the refrigerant performs heating and cooling functions.

더하여, 상기 실외기(30) 또는 실내기(20)를 통과한 냉매는 수액분리기(60)를 통과한 후 액상의 냉매를 최소화 하여 압축기(10)에 재공급토록 함으로써 압축기의 손상을 방지하게 된다.In addition, the refrigerant that has passed through the outdoor unit 30 or the indoor unit 20 is minimized in liquid phase refrigerant after passing through the liquid separator 60, and is supplied to the compressor 10 to prevent damage to the compressor.

이때, 상기 수액분리기(60)는, 실내기(20)를 통과하는 냉매라인이 내측을 통과하도록 설치되어 수액분리기에 냉매의 열량을 공급토록 설치되어 액상의 냉매를 최소화 하게 된다.At this time, the liquid separator (60) is installed such that the refrigerant line passing through the indoor unit (20) passes through the inside of the indoor unit (20) to supply the heat amount of the refrigerant to the liquid separator, thereby minimizing the liquid refrigerant.

그리고, 상기 실내기에는 수조(80)에 구비되는 입수관(81) 및 출수관(83)이 연결되어 실내기의 열량을 수조에 전달토록 설치되어 수조 내측의 물을 난방기 또는 냉방기로 사용할 때 가열하거나 냉각하여 사용토록 한다.The indoor unit is connected to the water inlet pipe 81 and the water outlet pipe 83 provided in the water tub 80 to transfer the amount of heat from the indoor unit to the water tank. When the water inside the water tank is used as a heater or a cooler, To be used.

또한, 상기 팽창밸브(40)을 통과한 저온의 냉매가 압축기(10)를 통과한 고온의 냉매와 열전달 되도록 압축기에 연결되는 제1고압관(14)의 외측에 밀착용접되는 제1열교환기(91)가 설치되어 제1고압관(14)에 전달되는 열량이 제1열교환기(91)에 충분하게 전달되도록 된다.A first heat exchanger (not shown) welded to the outside of the first high-pressure pipe 14 connected to the compressor so that the low-temperature refrigerant passing through the expansion valve 40 is heat-transferred to the high-temperature refrigerant passed through the compressor 10 The first heat exchanger 91 is installed in the first high pressure pipe 14 so that the amount of heat transferred to the first high pressure pipe 14 is sufficiently transferred to the first heat exchanger 91.

이때, 상기 팽창밸브(40)에서 공급되는 냉매가 제1열교환기(91)에 공급되어 열교환된 후 실외기(30)의 유입측에 공급토록 되는 제1제상라인(D1)이 구비되어 난방시 실외에 위치하는 실외기(30)의 결빙에 의한 효율저하를 방지하게 된다.At this time, the first defrosting line (D1), which is supplied to the inflow side of the outdoor unit (30) after the refrigerant supplied from the expansion valve (40) is supplied to the first heat exchanger (91) It is possible to prevent an efficiency deterioration due to freezing of the outdoor unit (30) located in the room.

그리고, 상기 출수관(83)의 일부를 이중관으로 형성한 후 이에 제2열교환기(93)를 연결설치함으로써 수조에 전달되는 열량의 일부가 제2열교환기(93)에 전달토록 된다.A part of the water pipe 83 is formed as a double pipe, and then the second heat exchanger 93 is connected to the water pipe, so that a part of the heat transferred to the water tank is transferred to the second heat exchanger 93.

이때, 상기 팽창밸브(40)에서 공급되는 냉매가 제2열교환기(93)에 공급되어 열교환된 후 실외기(30)의 유입측에 공급토록 되는 제2제상라인(D2)이 구비되어 실외의 기온이 급강하 하는 등의 극한 온도조건에서 제1,2제상라인(D1)(D2)를 동시에 사용할 수 있어 결빙에 의한 실외기의 동작불량을 방지하게 된다.At this time, the second defrosting line D2, which is supplied to the inflow side of the outdoor unit 30 after the refrigerant supplied from the expansion valve 40 is supplied to the second heat exchanger 93 for heat exchange, It is possible to use the first and second defrost lines D1 and D2 at the same time under extreme temperature conditions such as dropping, thereby preventing malfunction of the outdoor unit due to freezing.

더하여, 상기 실외기(30)를 통과한 저온의 냉매가 사방밸브(12)를 통과한 제2고압관(16)에 연결되면서 이중관 형상을 갖도록 설치되는 제3열전달기(95)를 통과한 후 제1열교환기(91)를 거쳐 압축기(10)의 유입측에 공급되는 저온제어라인(L1)이 구비되어 겨울철 압축기의 온도가 저하될 경우 압축기에 열량을 전달하여 효율적인 운전이 가능토록 한다.In addition, the low-temperature refrigerant having passed through the outdoor unit 30 is connected to the second high-pressure pipe 16 having passed through the four-way valve 12, and passes through the third heat exchanger 95, Temperature control line L1 supplied to the inflow side of the compressor 10 via the first heat exchanger 91 to transmit heat to the compressor when the temperature of the winter compressor is lowered to enable efficient operation.

또한, 상기 냉방시 팽창밸브(40)의 후단이 압축기(10)의 유입측과 연결되는 고온제어라인(H1)이 구비되어 여름철 고온의 온도조건에서 동작하는 압축기에 저온의 냉매가 유입되어 압축기의 과열에 의한 효율저하를 방지하게 되는 것이다.The high temperature control line H1, which is connected to the inflow side of the compressor 10, is provided at the rear end of the refrigerant expansion valve 40 so that low temperature refrigerant flows into the compressor operating at high temperature in the summer. It is possible to prevent a reduction in efficiency due to overheating.

10...압축기 12...사방밸브
20...실내기 40...팽창밸브
60...수액분리기 80...수조
91...제1열교환기10 ... compressor 12 ... four way valve
20 ... indoor unit 40 ... expansion valve
60 ... liquid separator 80 ... water tank
91 ... first heat exchanger

Claims (3)

팽창밸브를 통과한 저온의 냉매가 압축기를 통과한 고온의 냉매와 열교환 되도록 제1고압관의 외측에 밀착용접토록 설치되는 제1열교환기에 공급되어 열전달된 후 난방시 냉매가 유입되는 실외기의 전단에 공급토록 설치되고,
상기 실외기를 통과한 저온의 냉매가 사방밸브 통하여 실내기에 공급되는 고온의 냉매와 1차열교환된 후 제1열교환기에 공급되어 2차열전달되고, 상기 2차열전달된 냉매가 난방시 압축기의 유입측에 공급토록 설치되고,
상기 팽창밸브의 후단이 압축기의 유입측과 연결되어 냉방시 팽창밸브을 통과한 저온의 냉매가 압축기에 공급토록 설치되며,
상기 실내기에 연결되는 출수관에 의해 열량이 공급토록 제2열교환기가 설치되고, 상기 제2열교환기는 난방시 팽창밸브에서 공급되는 저온의 냉매가 공급되어 열교환된 후 난방시 실외기의 전단에 공급토록 설치되고,
상기 실외기 또는 실내기를 통과한 냉매 중 액상의 냉매를 최소화 하여 압축기에 재공급토록 설치되는 수액분리기의 내측으로 난방시 실내기를 통과하는 냉매라인이 통과하도록 설치되는 제상 및 압축효율이 개선되는 공기조화기.The low-temperature refrigerant passed through the expansion valve is supplied to the first heat exchanger installed in close contact with the outer side of the first high-pressure pipe so as to be heat-exchanged with the high-temperature refrigerant passing through the compressor, and is transferred to the front end of the outdoor unit And,
The low-temperature refrigerant passing through the outdoor unit is first heat-exchanged with the high-temperature refrigerant supplied to the indoor unit through the four-way valve, and then supplied to the first heat exchanger for the secondary heat transfer, and the secondary heat-transferred refrigerant is supplied to the inflow side And,
A rear end of the expansion valve is connected to an inlet side of the compressor, and a low-temperature refrigerant passing through the expansion valve during cooling is supplied to the compressor,
The second heat exchanger is installed in the second heat exchanger to supply heat to the outdoor unit at the time of heating after the low temperature refrigerant supplied from the expansion valve is supplied to the second heat exchanger. And,
An air conditioner installed in the outdoor unit or the indoor unit so as to minimize the liquid refrigerant in the refrigerant and to supply the refrigerant to the inside of the liquid separator installed to supply the refrigerant to the compressor, . 삭제delete 삭제delete
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111076446A (en) * 2019-12-02 2020-04-28 珠海格力电器股份有限公司 Heat pump air conditioning system and control method thereof
CN113531705A (en) * 2021-07-09 2021-10-22 青岛海尔空调器有限总公司 Air conditioner and method and device for controlling air conditioner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735446A (en) * 1993-07-26 1995-02-07 Sanyo Electric Co Ltd Freezer device
KR20050118830A (en) * 2004-06-15 2005-12-20 주식회사 대우일렉트로닉스 Air conditioner having function for cooling compressor
KR100688166B1 (en) * 2004-12-10 2007-03-02 엘지전자 주식회사 Air conditioner
JP2012172869A (en) * 2011-02-18 2012-09-10 Enaatekku Kk Heat pump device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735446A (en) * 1993-07-26 1995-02-07 Sanyo Electric Co Ltd Freezer device
KR20050118830A (en) * 2004-06-15 2005-12-20 주식회사 대우일렉트로닉스 Air conditioner having function for cooling compressor
KR100688166B1 (en) * 2004-12-10 2007-03-02 엘지전자 주식회사 Air conditioner
JP2012172869A (en) * 2011-02-18 2012-09-10 Enaatekku Kk Heat pump device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111076446A (en) * 2019-12-02 2020-04-28 珠海格力电器股份有限公司 Heat pump air conditioning system and control method thereof
CN113531705A (en) * 2021-07-09 2021-10-22 青岛海尔空调器有限总公司 Air conditioner and method and device for controlling air conditioner

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