KR100212674B1 - Heat pump type refrigerating cycle apparatus - Google Patents

Heat pump type refrigerating cycle apparatus Download PDF

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Publication number
KR100212674B1
KR100212674B1 KR1019970017934A KR19970017934A KR100212674B1 KR 100212674 B1 KR100212674 B1 KR 100212674B1 KR 1019970017934 A KR1019970017934 A KR 1019970017934A KR 19970017934 A KR19970017934 A KR 19970017934A KR 100212674 B1 KR100212674 B1 KR 100212674B1
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South Korea
Prior art keywords
evaporator
heat pump
room
temperature
compressor
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KR1019970017934A
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Korean (ko)
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KR19980082835A (en
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김득환
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구자홍
엘지전자주식회사
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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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B41/37—Capillary tubes
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2519—On-off 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

본 발명은 히트펌프용 냉동사이클장치에 관한 것으로, 종래에는 실내를 난방시키는 난방사이클에서 냉방사이클로 전환하여 증발기에 착상된 성애를 제상하는 과정에서 실내의 열교환기가 증발기의 역할을 하게 되어 실내로 찬공기가 토출되어 사용자로 하여금 불쾌감을 주는 단점이 있었는 바, 본 발명은 종래의 제상을 위하여 역사이클운전하던 것을 배제하고 연속 난방운전이 가능하게 함으로써 효율저하를 방지할 뿐만 아니라 실내로 찬공기가 토출되는 것을 방지할 수 있어 쾌적한 난방상태를 유지할 수 있도록 한 것이다.The present invention relates to a refrigeration cycle device for a heat pump, conventionally, the heat exchanger in the room serves as the evaporator in the process of defrosting the frost formed on the evaporator by switching from a heating cycle for heating the room to a cooling cycle, the cold air into the room There is a disadvantage that the user is uncomfortable to be discharged, the present invention excludes the reverse cycle operation for the conventional defrost and enables continuous heating operation not only to prevent the decrease in efficiency but also cold air is discharged into the room It can be prevented to maintain a comfortable heating state.

Description

히트펌프용 냉동사이클장치Refrigeration cycle device for heat pump

본 발명은 히트펌프용 냉동사이클장치에 관한 것으로, 특히 증발기에 서리가 발생되는 착상현상을 억제하여 제상을 하지 않고 연속 난방운전을 할 수 있도록 한 히트펌프용 냉동사이클장치에 관한 것이다.The present invention relates to a refrigeration cycle apparatus for a heat pump, and more particularly, to a refrigeration cycle apparatus for a heat pump to suppress continuous frost generated by the evaporator to allow continuous heating operation without defrosting.

일반적인 냉동사이클장치는, 도 1에 도시한 바와 같이, 저온저압의 기체상태의 냉매를 고온고압의 기체상태 냉매로 변화시키는 압축기(1)와, 상기 압축기(1)에서 변화된 고온고압의 기체상태의 냉매를 고온고압의 액체상태의 냉매로 변화시키는 응축기(2)와, 상기 응축기(2)에서 변화된 고온고압의 액체냉매를 저온저압의 액체냉매로 변화시키는 모세관(3)과, 상기 모세관(3)에서 변화된 저온저압의 액체상태의 냉매를 기체상태로 변화시키면서 외부의 열을 흡수하는 증발기(4)로 구성된다. 그리고 각 구성요소들은 냉매관에 의해 연결되어 있다.As shown in FIG. 1, a general refrigeration cycle apparatus includes a compressor (1) for changing a low-temperature low-pressure gaseous refrigerant into a high-temperature high-pressure gaseous refrigerant, and a high-temperature high-pressure gaseous state changed by the compressor (1). A condenser (2) for changing the refrigerant into a liquid refrigerant at a high temperature and high pressure, a capillary tube (3) for changing the high temperature and high pressure liquid refrigerant changed in the condenser (2) to a low temperature low pressure liquid refrigerant, and the capillary tube (3) It is composed of an evaporator (4) for absorbing external heat while changing the liquid refrigerant of the low temperature and low pressure changed in the gas state. Each component is connected by a refrigerant pipe.

상기 냉동사이클장치는 냉장고나 공기조화기 등에 적용되며, 증발기(4)에서 외부의 열을 흡수하는 것과 응축기(2)에서 외부에 열을 방출하는 것을 이용하여 식품을 신선하게 보관하거나 실내를 냉/난방시켜 실내환경을 쾌적하게 유지하게 된다.The refrigerating cycle device is applied to a refrigerator or an air conditioner, and the like by storing the fresh food or cooling the room by absorbing the heat from the evaporator (4) and releasing heat to the outside from the condenser (2). Heating keeps the indoor environment comfortable.

도 2는 상기 냉동사이클장치를 응용한 히트펌프용 냉동사이클장치를 도시한 것으로, 이에 도시한 바와 같이, 히트펌프용 냉동사이클장치는 압축기(1)에 이어 4방향밸브(5)가 결합되고 이 4방향밸브(5)의 일측에 연결되어 응축기(2)가 연결되며 이 응축기(2)에 이어 모세관(3)이 연결되고 이 모세관(3)에 이어 증발기(4)가 연결되며 이 증발기(4)는 상기 4방향밸브(5)의 다른 일측에 연결되며 상기 4방향밸브(5)의 다른 일측에 어큐뮬레이터(6)에 연결되고 이 어큐뮬레이터(6)는 압축기(1)에 연결되어 이루어진다.2 shows a refrigeration cycle apparatus for a heat pump applying the refrigeration cycle apparatus, as shown in the drawing, a heat pump refrigeration cycle apparatus has a four-way valve (5) coupled to the compressor (1) and the The condenser 2 is connected to one side of the four-way valve 5, and the condenser 2 is connected to the capillary tube 3, and the capillary tube 3 is connected to the evaporator 4, and the evaporator 4 is connected. ) Is connected to the other side of the four-way valve (5) is connected to the accumulator (6) on the other side of the four-way valve (5) and the accumulator (6) is connected to the compressor (1).

상기 응축기(2)는 실내에 위치하도록 설치되고, 그 외의 부품들은 실외에 설치된다.The condenser 2 is installed to be located indoors, and other components are installed outdoors.

상기한 바와 같은 히트펌프용 냉동사이클장치는 4방향밸브(5)의 방향을 변환시키면서 실내에 설치되는 응축기(2)의 역할을 변환시켜 실내를 냉/난방시키게 되는데, 이때 응축기(2)의 역할이 변함에 따라 증발기(4)의 역할도 변하게 된다.The refrigeration cycle device for the heat pump as described above to convert the role of the condenser 2 installed in the room while changing the direction of the four-way valve (5) to cool / heat the room, the role of the condenser (2) As this changes, the role of the evaporator 4 also changes.

상기한 바와 같은 히트펌프용 냉동사이클장치에서 실내에 설치되는 응축기(2)가 더운공기를 내보내어 난방역할을 하는 냉매의 흐름순서는, 압축기(1)의 작동에 따라 냉매가 압축기(1) - 4방향밸브(5) - 응축기(2) - 모세관(3) - 증발기(4) - 4방향밸브(5) - 어큐뮬레이터(6) - 압축기(1) 의 순서를 거치면서 진행되어 응축기(2)에서 열교환되는 더운공기를 실내로 토출시켜 실내를 난방상태로 유지하게 된다. 또한 실내를 냉방상태로 유지할 경우 4방향밸브(5)의 방향을 변환시켜 실내,외에 있는 응축기(2)와 증발기(4)의 역할을 변환시켜 실내가 냉방상태가 되도록 한다.In the above-described heat pump refrigeration cycle apparatus, the condenser 2 installed indoors discharges hot air and serves as a heating sequence. The refrigerant flows in accordance with the operation of the compressor 1. Four-way valve (5)-Condenser (2)-Capillary tube (3)-Evaporator (4)-Four-way valve (5)-Accumulator (6)-Compressor (1) By discharging the heat exchanged hot air into the room to maintain the room in the heating state. In addition, if the room is kept in a cooled state, the direction of the four-way valve (5) is changed to convert the roles of the condenser (2) and the evaporator (4) in the room and the outside so that the room is cooled.

한편, 상기 난방과정중 실내에 설치된 응축기(2)에서 열교환이 이루어지는 동안 실외에 설치된 증발기(4)에서도 열교환이 이루어지면서 증발기(4)표면에 서리가 발생하게 되는데, 서리가 가장 잘 발생하는 조건은 실외측 온도가 낮고 습도가 높을 경우로 약 0˚C 에서 7˚C 사이고 습도가 65% 이상이면 서리 발생 가능성이 현저하게 증가하게 된다. 참고로 약 0˚C 에서 7˚C 사이에서 상대습도가 가장 높기 때문이며, 0˚C 이하이면 상대습도가 낮아 서리발생이 없고 7˚C이상이면 온도가 높아 서리가 발생되지 않는다.On the other hand, while the heat exchange is performed in the evaporator 4 installed outdoors while the heat exchange is performed in the condenser 2 installed indoors during the heating process, frost is generated on the surface of the evaporator 4, and the condition in which frost occurs best If the outdoor temperature is low and the humidity is high, the possibility of frost is increased significantly between about 0˚C and 7˚C and humidity above 65%. For reference, it is because the relative humidity is the highest between about 0˚C and 7˚C. If the relative humidity is less than 0˚C, no frost occurs. If the temperature is higher than 7˚C, no frost occurs.

상기 히트펌프용 냉동사이클장치는 냉/난방을 겸용할 수 있어 공기조화기에서는 유용하게 사용되지만, 외부 공기의 온,습도 조건에 따라 냉/난방 효율이 달라지며 특히 난방운전시 외부 기온에 따른 효율저하가 크다. 보통 정상상태의 난방사이클에서(외부온도 조건은 7˚C정도) 실외에 설치된 열교환기(증발기)의 증발온도가 약 0˚C 에서 1˚C 정도이나 외부온도가 낮아지게 되면 냉매와 공기의 온도차가 계속 줄어들어 열교환효율이 감소됨으로써 외부온도가 낮을 경우 난방성능이 저하되고 또한 증발기(4)의 착상으로 인하여 더욱 성능이 감소하게 됨으로 주기적으로 제상을 해주어야 한다.The refrigeration cycle device for the heat pump can be combined with cooling / heating is useful in the air conditioner, but the cooling / heating efficiency varies depending on the temperature, humidity conditions of the outside air, in particular the efficiency according to the outside temperature during heating operation Deterioration is large. In normal heating cycle (external temperature condition is about 7˚C), when the evaporation temperature of heat exchanger (evaporator) installed outdoors is about 0˚C to 1˚C, the temperature difference between refrigerant and air decreases. Since the heat exchange efficiency is continuously reduced and the external temperature is low, the heating performance is lowered and the performance is further reduced due to the conception of the evaporator 4, and thus defrosting should be performed periodically.

종래 히트펌프용 냉동사이클장치의 제상방법은 실내에 설치된 열교환기가 응축기(2)의 역할을 하는 난방사이클에서 냉매의 흐름을 전환시켜 실외에 설치된 열교환기,즉 증발기(4)에 고온의 냉매를 유입하여 순간적으로 제상한 다음 다시 냉매의 흐름을 전환시켜 난방운전을 행하게 된다.The defrosting method of a conventional heat pump refrigeration cycle device is a heat exchanger installed in the room to switch the flow of the refrigerant in the heating cycle that serves as the condenser 2, the high-temperature refrigerant flows into the heat exchanger, that is, the evaporator (4) installed outdoors. After defrosting instantaneously, the flow of the refrigerant is switched again to perform heating operation.

그러나 상기한 바와 같은 종래의 방법은 실내를 난방시키는 난방사이클에서 냉방사이클로 전환하여 제상하는 과정에서 실내의 열교환기가 증발기(4)의 역할을 하게 되어 실내로 찬공기가 토출되어 사용자로 하여금 불쾌감을 주는 단점이 있었다.However, in the conventional method as described above, the heat exchanger in the room serves as the evaporator 4 in the process of defrosting by switching from a heating cycle for heating the room to a cooling cycle, thereby discharging cold air into the room, thereby causing discomfort to the user. There was a downside.

따라서 본 발명의 목적은 증발기에 서리가 발생되는 착상현상을 억제하여 제상을 하지 않고 연속 난방운전을 할 수 있도록 한 히트펌프용 냉동사이클장치를 제공함에 있다.Accordingly, an object of the present invention is to provide a refrigeration cycle apparatus for a heat pump that can continuously operate the heating without defrosting by suppressing the phenomenon of frost generated in the evaporator.

도1은 일반적인 냉동사이클장치를 개략적으로 도시한 구성도.1 is a schematic view showing a general refrigeration cycle apparatus.

도2는 종래 히트펌프용 냉동사이클장치를 개략적으로 도시한 구성도.Figure 2 is a schematic view showing a conventional refrigeration cycle device for a heat pump.

도3은 본 발명의 히트펌프용 냉동사이클장치를 개략적으로 도시한 구성도.Figure 3 is a schematic view showing a refrigeration cycle apparatus for a heat pump of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 압축기 2 : 응축기1: compressor 2: condenser

3 : 모세관 4 : 증발기3: capillary tube 4: evaporator

5 : 4방향밸브 6 : 어큐뮬레이터5: 4-way valve 6: accumulator

7 : 바이패스관 8 : 열교환수단7: bypass tube 8: heat exchange means

9 : 온도감지센서 10 : 온/오프밸브9: Temperature sensor 10: On / off valve

11 : 제어수단11 control means

상기한 바와 같은 본 발명의 목적을 달성하기 위하여 압축기에 이어 4방향밸브가 결합되고 이 4방향밸브의 일측에 연결되어 응축기가 연결되며 이 응축기에 이어 모세관이 연결되고 이 모세관에 이어 증발기가 연결되며 이 증발기는 상기 4방향밸브의 다른 일측에 연결되며 상기 4방향밸브의 다른 일측에 어큐뮬레이터에 연결되고 이 어큐뮬레이터는 압축기에 연결되어 이루어진 히트펌프용 냉동사이클장치에 있어서, 상기 압축기의 출구부와 증발기의 입구부를 연결하는 바이패스관을 설치하고 압축기의 출구부분과 증발기의 출구부분을 서로 열교환시키는 열교환수단을 설치하며 증발기에 증발온도를 감지하는 온도감지센서를 설치하고 상기 바이패스관에 온/오프밸브를 설치하며 상기 온도감지센서의 온도감지에 의해 온/오프밸브를 개폐시키는 제어수단을 설치하여 이루어짐을 특징으로 하는 히트펌프용 냉동사이클장치가 제공된다.In order to achieve the object of the present invention as described above, a four-way valve is coupled to the compressor and connected to one side of the four-way valve to connect a condenser. The condenser is connected to a capillary and the capillary is connected to an evaporator. The evaporator is connected to the other side of the four-way valve and connected to the accumulator on the other side of the four-way valve, the accumulator is connected to the compressor, in the refrigeration cycle device for a heat pump consisting of the outlet of the compressor and the evaporator Install a bypass pipe connecting the inlet, and install a heat exchange means for heat exchange between the outlet of the compressor and the outlet of the evaporator. Install a temperature sensor to detect the evaporation temperature in the evaporator. And opening and closing the on / off valve by detecting the temperature of the temperature sensor. The refrigeration cycle device for a heat pump installation with a control means, characterized by yirueojim is provided.

이하, 본 발명의 히트펌프용 냉동사이클장치를 첨부도면에 도시한 실시예에 따라 설명하면 다음과 같다.Hereinafter, the refrigeration cycle device for a heat pump of the present invention will be described according to the embodiment shown in the accompanying drawings.

본 발명의 히트펌프용 냉동사이클장치는, 도 3에 도시한 바와 같이, 압축기(1)에 이어 4방향밸브(5)가 결합되고 이 4방향밸브(5)의 일측에 연결되어 응축기(2)가 연결되며 이 응축기(2)에 이어 모세관(3)이 연결되고 이 모세관(3)에 이어 증발기(4)가 연결되며 이 증발기(4)는 상기 4방향밸브(5)의 다른 일측에 연결되며 상기 4방향밸브(5)의 다른 일측에 어큐뮬레이터(6)에 연결되고 이 어큐뮬레이터(6)는 압축기(1)에 연결되어 이루어짐은 종래와 같다.In the refrigeration cycle apparatus for a heat pump of the present invention, as shown in FIG. 3, a four-way valve 5 is coupled to the compressor 1 and connected to one side of the four-way valve 5 to condenser 2. Connected to the condenser (2) followed by a capillary tube (3), followed by the capillary tube (3) followed by an evaporator (4), which is connected to the other side of the four-way valve (5). The other side of the four-way valve 5 is connected to the accumulator 6 and the accumulator 6 is connected to the compressor 1 as in the prior art.

그리고 상기 압축기(1)의 출구부와 증발기(4)의 입구부를 연결하는 바이패스관(7)을 설치하고, 상기 압축기(1)에서 토출되어 출구부분에 흐르는 냉매와 증발기(4)에서 유출되어 출구부분에 흐르는 냉매를 서로 열교환시키는 열교환수단(8)을 설치하며, 상기 증발기(4)에 증발온도를 감지하는 온도감지센서(9)를 설치하고, 상기 바이패스관(7)에 온/오프밸브(10)를 설치하여 상기 온도감지센서(9)의 온도감지에 의해 온/오프밸브(10)를 개폐시키는 제어수단(11)을 설치하여 이루어진다.Then, the bypass pipe 7 is connected to the outlet part of the compressor 1 and the inlet part of the evaporator 4, and is discharged from the refrigerant and the evaporator 4 discharged from the compressor 1 and flowing to the outlet part. A heat exchange means 8 is installed to heat exchange the refrigerant flowing in the outlet portion with each other, and a temperature sensor 9 is installed at the evaporator 4 to detect the evaporation temperature, and the on / off of the bypass pipe 7 is provided. By installing the valve 10, the control means 11 for opening and closing the on / off valve 10 by the temperature detection of the temperature sensor 9 is provided.

상기 열교환수단(8)은 압축기(1)의 토출부분의 냉매관과 증발기(4)의 출구부분의 냉매관을 접촉시키는 구조로 이루어진다.The heat exchange means 8 has a structure in which the refrigerant pipe of the discharge part of the compressor 1 and the refrigerant pipe of the outlet part of the evaporator 4 are brought into contact with each other.

이하, 본 발명의 히트펌프용 냉동사이클장치의 작용효과를 설명하면 다음과 같다.Hereinafter, the operational effects of the refrigeration cycle apparatus for a heat pump of the present invention will be described.

외부의 온도가 저하되면 실내를 난방시키기 위한 난방운전이 진행되며 이때 외부온도의 저하에 따라 증발온도가 낮아져 증발기(4)에 착상우려가 있을때 증발온도를 감지하는 온도감지센서(9)의 감지에 의해 0˚C 이하가 되면 온/오프밸브(10)를 열어 압축기(1)의 고온의 냉매를 증발기(4)의 입구로 보내 증발온도를 상승시켜 착상을 방지한다. 그후 증발온도가 0˚C 이상되면 온/오프밸브(10)를 닫아 정상적인 운전사이클을 유지하게 되며, 이와 같은 과정을 반복하면서 난방사이클을 안정적으로 유지시키게 된다.When the outside temperature is lowered, the heating operation for heating the room is performed, and at this time, the evaporation temperature is lowered according to the decrease in the external temperature. When the temperature becomes 0 ° C or less, the on / off valve 10 is opened to send a high-temperature refrigerant of the compressor 1 to the inlet of the evaporator 4 to increase the evaporation temperature to prevent implantation. After that, when the evaporation temperature is 0 ° C or more, the on / off valve 10 is closed to maintain a normal operation cycle, and the heating cycle is stably maintained while repeating the above process.

한편, 상기 온/오프밸브(10)를 열어 고온의 냉매가스가 증발기(4)로 들어가게 되면 냉매가 응축되어 액냉매 상태로 나오게 되는데 이는 열교환수단(8)에 의해 열교환되어 과열된 상태로 압축기(1)로 유입된다. 만약 액냉매가 압축기(1)로 유입되면 압축기(1)의 효율을 저하시킬 뿐만 아니라 압축기(1)를 소손시키게 되는데 이를 열교환수단(8)에서 방지하게 된다.On the other hand, when the on-off valve 10 is opened and the high-temperature refrigerant gas enters the evaporator 4, the refrigerant is condensed and comes out as a liquid refrigerant, which is heat-exchanged by the heat exchange means 8 to overheat the compressor ( Flows into 1). If the liquid refrigerant flows into the compressor 1, it not only lowers the efficiency of the compressor 1, but also burns the compressor 1, which is prevented by the heat exchange means 8.

이상에서 설명한 바와 같이, 본 발명에 의한 히트펌프용 냉동사이클장치는 종래의 제상을 위하여 역사이클운전하던 것을 배제하여 연속 난방운전이 가능하게 되어 효율저하를 방지할 뿐만 아니라 실내로 찬공기가 토출되는 것을 방지할 수 있어 쾌적한 난방상태를 유지할 수 있는 효과가 있다.As described above, the heat pump refrigeration cycle apparatus according to the present invention is capable of continuous heating operation by excluding the reverse cycle operation for conventional defrosting to prevent the reduction of efficiency as well as to discharge cold air into the room. It can be prevented to have the effect of maintaining a comfortable heating state.

Claims (1)

압축기에 이어 4방향밸브가 결합되고 이 4방향밸브의 일측에 연결되어 응축기가 연결되며 이 응축기에 이어 모세관이 연결되고 이 모세관에 이어 증발기가 연결되며 이 증발기는 상기 4방향밸브의 다른 일측에 연결되며 상기 4방향밸브의 다른 일측에 어큐뮬레이터에 연결되고 이 어큐뮬레이터는 압축기에 연결되어 이루어진 히트펌프용 냉동사이클장치에 있어서, 상기 압축기의 출구부와 증발기의 입구부를 연결하는 바이패스관을 설치하고 압축기의 출구부분과 증발기의 출구부분을 서로 열교환시키는 열교환수단을 설치하며 증발기에 증발온도를 감지하는 온도감지센서를 설치하고 상기 바이패스관에 온/오프밸브를 설치하며 상기 온도감지센서의 온도감지에 의해 온/오프밸브를 개폐시키는 제어수단을 설치하여 이루어짐을 특징으로 하는 히트펌프용 냉동사이클장치.The compressor is connected to a four-way valve, connected to one side of the four-way valve, to a condenser, connected to the condenser, followed by a capillary, followed by an evaporator, and connected to the other side of the four-way valve. The other side of the four-way valve is connected to the accumulator and the accumulator is connected to the compressor in the refrigeration cycle device for the heat pump, the bypass pipe connecting the outlet of the compressor and the inlet of the evaporator is installed A heat exchange means is provided for heat exchange between the outlet portion and the outlet portion of the evaporator, a temperature sensor for detecting the evaporation temperature is installed on the evaporator, an on / off valve is installed in the bypass pipe, and the temperature sensor detects the temperature. Heat characterized in that it is made by installing a control means for opening and closing the on / off valve Peuyong refrigeration cycle device.
KR1019970017934A 1997-05-09 1997-05-09 Heat pump type refrigerating cycle apparatus KR100212674B1 (en)

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Cited By (2)

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KR100631352B1 (en) 2006-03-29 2006-10-04 신문균 A complex cooling and heating apparatus
WO2009140532A2 (en) * 2008-05-14 2009-11-19 Earth To Air Systems, Llc Dx system interior heat exchanger defrost design for heat to cool mode

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KR100395026B1 (en) * 2001-03-09 2003-08-19 (주)티이엔 An evaporative temperature compensation device and process of heat pump
KR100688166B1 (en) * 2004-12-10 2007-03-02 엘지전자 주식회사 Air conditioner
KR100887415B1 (en) * 2007-08-23 2009-03-06 유대성 Refrigerants System prevented from occurring of frost
KR101024404B1 (en) * 2009-01-12 2011-03-23 주식회사 에어-텍 heat exchanger for refrigeration system
KR101589807B1 (en) * 2014-02-20 2016-01-28 강철호 Heat pump cooling system
GB201610977D0 (en) * 2016-06-23 2016-08-10 Sunamp Ltd A thermal energy storage system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100631352B1 (en) 2006-03-29 2006-10-04 신문균 A complex cooling and heating apparatus
WO2009140532A2 (en) * 2008-05-14 2009-11-19 Earth To Air Systems, Llc Dx system interior heat exchanger defrost design for heat to cool mode
WO2009140532A3 (en) * 2008-05-14 2010-02-25 Earth To Air Systems, Llc Dx system interior heat exchanger defrost design for heat to cool mode

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