KR970006055B1 - Airconditioner - Google Patents

Airconditioner Download PDF

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Publication number
KR970006055B1
KR970006055B1 KR1019940030212A KR19940030212A KR970006055B1 KR 970006055 B1 KR970006055 B1 KR 970006055B1 KR 1019940030212 A KR1019940030212 A KR 1019940030212A KR 19940030212 A KR19940030212 A KR 19940030212A KR 970006055 B1 KR970006055 B1 KR 970006055B1
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South Korea
Prior art keywords
refrigerant
valve
gas
liquid separator
heat exchanger
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KR1019940030212A
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Korean (ko)
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KR960018400A (en
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이상호
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엘지전자 주식회사
구자홍
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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
    • 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
    • F25B2700/13—Mass flow of refrigerants

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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

Wherever it is installed, it can heat by circulating refrigerant compulsorily in using a refrigerant flow meter and a refrigerant circulating pump. It is composed of an indoor machine(10), outdoor machine(20) and a fuel tank(40). The indoor machine(10) is also composed of an indoor heat exchanger(11) and a blower(12). The outdoor machine(20) is composed of a compressor(21), an outdoor heat exchanger(22), an oil purge valve(23), an refrigerant heater(24), a combustor(25), a cooling valve(26), a capillary tube(27), a vapor liquid separator(28), 4-way valve(31), a pressure control valve(32) and a check valve which is installed between each circuit to prevent the going against refrigerant.

Description

냉매강제순환식 열구동형 냉, 난방겸용에어콘Refrigerant Forced Circulation Thermal Drive Type Cooling, Heating

제1도는 열구동형 냉, 난방겸용 에어콘의 구성도.1 is a block diagram of a thermo-driven cold, heating combined air conditioner.

제2도는 종래 열구동형 냉, 난방겸용 에어콘의 유로 구성도.2 is a flow chart of a conventional heat-driven cold-heating air conditioner.

제3도는 본 발명의 냉매강제순환식 열구동형 냉, 난방겸용에어콘의 유로 구성도.3 is a flow chart of a refrigerant forced circulation type thermal drive type cold, heating combined air conditioner of the present invention.

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

10 : 실내기 11 : 실내열교환기10: indoor unit 11: indoor heat exchanger

12 : 송풍기 20 : 실외기12: blower 20: outdoor unit

21 : 압축기 22 : 실외열교환기21 compressor 22 outdoor heat exchanger

23 : 오일퍼지밸브 24 : 냉매가열기23: oil purge valve 24: refrigerant heater

25 : 연소기 26 : 냉방밸브25: combustor 26: cooling valve

27 : 모세관 28 : 기액분리기27 capillary 28 gas-liquid separator

31 : 사방밸브 32 : 압력조절밸브31: Four-way valve 32: Pressure regulating valve

33-36 : 첵크밸브 37 : 냉매유량계33-36: check valve 37: refrigerant flow meter

38 : 냉매순환펌프38: refrigerant circulation pump

본 발명은 열구동형 냉,난방겸용 에어콘에 관한 것으로, 특히 실내기의 설치위치에 관계 없이 냉매유량계와 냉매순환펌프로 냉매를 강제적으로 순환시켜 난방운전되도록 발명한 냉매강제순환식 열구동형 냉,난방겸용 에어콘에 관한 것이다.The present invention relates to a heat-driven air-conditioning combined air-conditioning, in particular, the refrigerant forced circulation type heat-driven cooling and heating combined invented to operate by heating the refrigerant forcedly circulating the refrigerant by the refrigerant flow meter and the refrigerant circulation pump irrespective of the installation position of the indoor unit It's about air conditioning.

일반적으로 종래의 열구동형 냉,난방겸용 에어콘은 제1도와 같이 실내를 냉,난방시키는 실내기(10), 실내기(10)보다 낮은 위치에 설치되는 실외기(20), 연료를 공급하는 연료탱크(40)로 구성된다.In general, the conventional heat-driven air-conditioning combined air conditioner is an indoor unit 10 for cooling and heating the room as shown in FIG. 1, an outdoor unit 20 installed at a lower position than the indoor unit 10, and a fuel tank 40 for supplying fuel. It is composed of

상기 실내기(10)는 제2도와 같이 실내열교환기(11)와 송풍기(12)로 구성되며, 실외기(20)는 압축기(21), 실외열교환기(22), 오일퍼지밸브(23), 냉매가열기(24), 연소기(25), 냉방밸브(26), 모세관(27), 기액분리기(28), 리시버(29), 냉매순환밸브(30), 사방밸브(31), 압력조절밸브(32) 및 각 회로사이에 냉매역류방지를 위한 첵크밸브(33-36)로 구성한다.The indoor unit 10 includes an indoor heat exchanger 11 and a blower 12 as shown in FIG. 2, and the outdoor unit 20 includes a compressor 21, an outdoor heat exchanger 22, an oil purge valve 23, and a refrigerant. Heater 24, combustor 25, cooling valve 26, capillary 27, gas-liquid separator 28, receiver 29, refrigerant circulation valve 30, four-way valve 31, pressure control valve ( 32) and check valves 33-36 for preventing refrigerant backflow between the circuits.

따라서 냉방운전을 하는 경우, 제2도 및 표1의 각 전자밸브의 동작과 같이 압축기(21)에서 압축된 냉매가스가 사방밸브(31)⇒실외열교환기(22)⇒오일퍼지밸브(23)⇒냉매가열기(24)⇒냉방밸브(26)모세관(27)⇒실내열교환기(11)⇒압축기(21)의 순으로 계속 순환하여 기존 에어콘과 같이 실내를 냉방한다.Therefore, in the cooling operation, the refrigerant gas compressed by the compressor 21 is discharged from the four-way valve 31 to the outdoor heat exchanger 22 to the oil purge valve 23 as in the operation of the solenoid valve shown in FIG. ⇒ refrigerant heater (24) ⇒ cooling valve (26) capillary tube (27) ⇒ indoor heat exchanger (11) ⇒ compressor (21) in order to continue to cool the room like the existing air conditioner.

그리고 난방운전절환시에는 표 1과 같이 압축기(21)와 실내열교환기(22)에 있는 냉매를 난방회로에 모으기 위한 펌프다운운전을 하여 냉매를 기액분리기(28)와 냉매가열기(24)로 회수한다. 즉, 냉매순환계통은 냉매가열기(24)⇒기액분리기(28)⇒사방밸브(31)⇒리시버(29)⇒기액분리기(28)⇒냉매가열기(24)의 순으로 순환을 하게 된다. 따라서 난방작동시에는 냉매가열기(24)에 모여진 냉매를 연소기(25)에서 가열하고, 가열된 고온, 고압의 기체를 기액분리기(28)로 순환되게 하며, 사방밸브(31)를 통해 실내열교환기(11)에서 송풍기(12)에 의하여 실내를 난방하고 저압의 액체로 변화하여 실내기(10)와 실외기(20)의 높이차이에 의하여 리시버(29)로 유입되며, 리시버(29)내로 유입된 액체냉매는 냉매순환밸브(30)의 온, 오프동작으로 압력을 변화시켜 기액분리기(28)로 유입하게 되며, 기액분리기(28)에 모여진 냉매는 중력에 의하여 냉매가열기(24)로 보내지게 된다. 이때 기액분리기(28)에는 항상 기상과 액상의 냉매가 존재하게 된다.At the time of switching the heating operation, as shown in Table 1, a pump down operation for collecting the refrigerant in the compressor 21 and the indoor heat exchanger 22 into the heating circuit is carried out to the gas-liquid separator 28 and the refrigerant heater 24. Recover. That is, the refrigerant circulation system circulates in the order of the refrigerant heater 24 ⇒ gas liquid separator 28 ⇒ four-way valve 31 ⇒ receiver 29 ⇒ gas liquid separator 28 ⇒ refrigerant heater 24. Therefore, during the heating operation, the refrigerant collected in the refrigerant heater 24 is heated in the combustor 25, the heated high temperature and high pressure gas is circulated to the gas-liquid separator 28, and the indoor heat exchange through the four-way valve 31. In the air conditioner 11, the room is heated by the blower 12, and the liquid is changed into a low pressure liquid. The air flows into the receiver 29 by the height difference between the indoor unit 10 and the outdoor unit 20, and is introduced into the receiver 29. The liquid refrigerant is introduced into the gas-liquid separator 28 by changing the pressure by the on / off operation of the refrigerant circulation valve 30, and the refrigerant collected in the gas-liquid separator 28 is sent to the refrigerant heater 24 by gravity. do. At this time, the gas-liquid separator 28 always has a gaseous phase and a liquid refrigerant.

한편, 오일퍼지밸브(23)의 동작은 난방운전절환시 냉매가열기(24)와 기액분리기(28)에 냉매를 모으면 냉매중에 포함되어 있는 오일은 냉매가열기(24)의 하단부에 고이게 되며, 이때 오일퍼지밸브(23)를 개방하면 냉매회로를 따라 오일이 먼저 흘러 나오고 그 후 냉매가 흘러 나오게 되는데 오일퍼지밸브(23)를 개방하고 일정시간의 경과 후 다시 차단하게 되면 오일만 흘러 나오게 되고 냉매는 냉매가열기(24)와 기액분리기(28)에 모여있도록 하는 역할을 한다.On the other hand, when the operation of the oil purge valve 23 collects the refrigerant in the refrigerant heater 24 and the gas-liquid separator 28 during the switching of the heating operation, the oil contained in the refrigerant is accumulated at the lower end of the refrigerant heater 24, At this time, when the oil purge valve 23 is opened, oil flows out first along the refrigerant circuit, and then the refrigerant flows out. When the oil purge valve 23 is opened and shut off again after a certain time, only oil flows out. Serves to gather in the refrigerant heater 24 and the gas-liquid separator 28.

따라서 종래의 냉매순환방식은 실내기(10)와 실외기(20)의 높이차이 및 냉매순환밸브(30)의 압력조절로 냉매를 자연순환시키는 방식이므로 실내기(10)를 실외기(20)보다 하방에 위치되게 설치되는 경우 냉매가 순환되지 않는 문제점이 있었다.Therefore, in the conventional refrigerant circulation method, the indoor unit 10 is located below the outdoor unit 20 because the refrigerant is naturally circulated by the height difference between the indoor unit 10 and the outdoor unit 20 and the pressure control of the refrigerant circulation valve 30. If so, there was a problem that the refrigerant is not circulated.

본 발명은 이러한 종래의 문제점을 해결하고자 안출한 것으로, 종래의 리시버와 냉매순환밸브 대신에, 기액분리기의 배출구와 실내열교환기사이에 냉매유량계를 실내열교환기와 기액분리기의 흡입구 사이에 냉매순환펌프를 각각 설치하여 냉매를 강제적으로 순환되도록 하여 실내기의 설치위치에 관계없이 난방운전이 되도록 하는 데 그 목적이 있다.The present invention has been made to solve such a conventional problem, and instead of the conventional receiver and the refrigerant circulation valve, a refrigerant flow meter between the outlet of the gas-liquid separator and the indoor heat exchanger, respectively, and a refrigerant circulation pump between the inlet of the indoor heat exchanger and the gas-liquid separator, respectively. The purpose of the installation is to force the refrigerant to circulate so that the heating operation is performed regardless of the installation position of the indoor unit.

이하 본 발명을 첨부도면에 의하여 상세히 설명한다.Hereinafter, the present invention will be described in detail by the accompanying drawings.

도면 제3도에서, 실내열교환기(11)와 송풍기(12)로 구성되어 실내를 냉,난방시키는 실내기(10)와; 압축기(21), 실외열교환기(22), 오일퍼지밸브(23), 냉매가열기(24), 연소기(25), 냉방밸브(26), 모세관(27), 기액분리기(28), 사방밸브(31), 압력조절밸브(32) 및 각 회로사이에 냉매역류방지를 위한 첵크밸브(33-36)로 구성된 실외기(20)와; 연료를 공급하는 연료탱크(40)로 열구동형 냉,난방겸용 에어콘을 구성한 것에 있어서, 냉매를 강제적으로 순환하여 실내기의 설치위치에 관계없이 난방운전이 되도록 상기 기액분리기(28)와 실내열교환기(11) 사이에 설치되는 냉매유량계(37)와, 압축기(21)와 기액분리기(28)의 흡입구측 사이에 냉매순환펌프(38)를 설치하여 냉매강제순환식 열구동형 냉,난방겸용 에어콘을 구성한 것이 본 발명의 특징이다.3, an indoor unit 10 comprising an indoor heat exchanger 11 and a blower 12 for cooling and heating the room; Compressor (21), outdoor heat exchanger (22), oil purge valve (23), refrigerant heater (24), combustor (25), cooling valve (26), capillary tube (27), gas-liquid separator (28), four-way valve (31), an outdoor unit (20) consisting of a pressure control valve (32) and a check valve (33-36) for preventing refrigerant backflow between each circuit; In the heat-driven air-conditioning combined air conditioner composed of a fuel tank 40 for supplying fuel, the gas-liquid separator 28 and the indoor heat exchanger are configured to circulate the refrigerant forcibly to be heated and operated regardless of the installation position of the indoor unit. 11) A refrigerant flow pump 38 is installed between the refrigerant flow meter 37 and the suction port side of the compressor 21 and the gas-liquid separator 28 to form a refrigerant forced circulation type air-cooled heating / cooling air conditioner. It is a feature of the present invention.

이와같이 구성된 본 발명은, 냉방운전을 하는 경우 표 2의 각 전자밸브의 동작과 같이 압축기(21)에서 압축된 냉매가스가 사방밸브(31)⇒실외열교환기(22)⇒오일퍼지밸브(23)⇒냉매가열기(24)⇒냉방밸브(26)⇒모세관(27)⇒실내열교환기(11)⇒사방밸브(31⇒압축기(21)의 순으로 계속 순환하여 기존 에어콘과 같이 실내를 냉방한다.According to the present invention configured as described above, when the cooling operation is performed, the refrigerant gas compressed by the compressor 21 in the four-way valve 31 ⇒ the outdoor heat exchanger 22 ⇒ the oil purge valve 23 is operated as in the operation of each solenoid valve of Table 2. ⇒ The refrigerant heater (24) ⇒ cooling valve (26) ⇒ capillary tube (27) ⇒ indoor heat exchanger (11) ⇒ four-way valve (31 ⇒ compressor 21) continues to circulate in order to cool the room like conventional air conditioners.

그리고 난방운전절환시에는 표 2와 같이 압축기(21)와 실내열교환기(22)에 있는 냉매를 난방회로에 모으기 위한 펌프다운운전을 하여 냉매를 기액분리기(28)와 냉매가열기(24)로 회수한다. 즉, 냉매순환계통은 기액분리기(28)에서 사방밸브(31)를 통하여 실내열교환기(11)로 보내진 냉매유량을 냉매유량계(37)에서 감지하여 그 냉매량만큼 냉매순환펌프(38)의 작동으로 기액분리기(28)로 회수하게 된다.At the time of switching the heating operation, as shown in Table 2, a pump down operation for collecting the refrigerant in the compressor 21 and the indoor heat exchanger 22 into the heating circuit is carried out to the gas-liquid separator 28 and the refrigerant heater 24. Recover. That is, the refrigerant circulation system detects the refrigerant flow rate sent from the gas-liquid separator 28 to the indoor heat exchanger 11 through the four-way valve 31 and operates the refrigerant circulation pump 38 by the amount of the refrigerant. Recovered to the gas-liquid separator 28.

따라서 난방작동시에는 냉매가열기(24)에 모여진 냉매를 연소기(25)에서 가열하고, 가열된 고온, 고압의 기체를 기액분리기(28)로 순환되게 하며, 기액분리기(28)의 냉매가스는 사방밸브(31)를 통하여 실내열교환기(11)로 보내지게 되므로 송풍기(12)에 의하여 실내를 난방하게 되는 것이며, 저압의 액체로 변화된 액체냉매는 냉매유량계(37)에서 실내열교환기(11)로 보내진 냉매량을 감지하여 그 양만큼 냉매순환펌프(38)의 동작으로 압력을 변환시켜 기액분리기(28)로 유입하게 되며, 기액분리기(28)에 모여진 냉매는 중력에 의하여 냉매가열기(24)로 보내지게 된다.Therefore, during the heating operation, the refrigerant collected in the refrigerant heater 24 is heated in the combustor 25, and the heated high temperature and high pressure gas is circulated to the gas-liquid separator 28, and the refrigerant gas of the gas-liquid separator 28 is Since it is sent to the indoor heat exchanger 11 through the four-way valve 31 is to heat the room by the blower 12, the liquid refrigerant changed into a liquid of low pressure is a refrigerant flowmeter (37) in the indoor heat exchanger (11) Detects the amount of refrigerant sent to the gas and converts the pressure by the operation of the refrigerant circulation pump 38 to enter the gas-liquid separator 28, and the refrigerant collected in the gas-liquid separator 28 is the refrigerant heater 24 by gravity. Will be sent to.

이와같이 본 발명은 기액분리기의 배출구와 실내열교환기 사이에 냉매유량계를 실내열교환기와 기액분리기의 흡입구 사이에 냉매순환펌프를 각각 설치하여 순환된 냉매의 양을 감지하여 그 양만큼 강제적으로 순환되도록 하여 실내기의 설치위치에 관계없이 난방운전이 되도록 하므로써 제품의 품질과 신뢰도를 높힐 수가 있는 것이다.As described above, the present invention installs a refrigerant circulating pump between the outlet of the gas-liquid separator and the indoor heat exchanger between the indoor heat exchanger and the inlet of the gas-liquid separator, respectively, and detects the amount of circulated refrigerant so that the refrigerant is circulated forcibly. It is possible to increase the quality and reliability of the product by allowing the heating operation regardless of the installation location.

Claims (1)

실내열교환기와 송풍기로 구성되에 실내를 냉,난방시키는 실내기와; 압축기, 실외열교환기, 오일퍼지밸브, 냉매가열기, 연소기, 냉방밸브, 모세관, 기액분리기, 사방밸브, 압력 조절밸브 및 각 회로사이에 냉매역류방지를 위한 첵크밸브로 구성된 실외기와; 연료를 공급하는 연료탱크로 열구동형 냉,난방겸용 에어콘을 구성한 것에 있어서, 냉매를 강제적으로 순환하여 실내기의 설치위치에 관계없이 난방운전이 되도록 상기 기액분리기와 실내열교환기사이에 설치되는 냉매유량계와, 압축기와 기액분리기의 흡입구측 사이에 냉매순환펌프를 설치하여 구성한 것을 특징으로 하는 냉매강제순환식 열구동형 냉,난방겸용 에어콘.An indoor unit configured to indoor and heat the air exchanger and a blower to cool and heat the room; An outdoor unit comprising a compressor, an outdoor heat exchanger, an oil purge valve, a refrigerant heater, a combustor, a cooling valve, a capillary tube, a gas-liquid separator, a four-way valve, a pressure regulating valve, and a check valve for preventing refrigerant backflow between circuits; In the fuel tank for supplying fuel to form a heat-driven air-conditioning combined air conditioner, the refrigerant flow meter is installed between the gas-liquid separator and the indoor heat exchanger to circulate the refrigerant forcibly to be heated operation regardless of the installation position of the indoor unit; Refrigerant forced circulation type air-conditioning cooling and heating combined air-conditioning, characterized in that the refrigerant circulating pump is installed between the compressor and the inlet side of the gas-liquid separator.
KR1019940030212A 1994-11-17 1994-11-17 Airconditioner KR970006055B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351588C (en) * 2004-11-26 2007-11-28 Lg电子株式会社 Air conditioning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351588C (en) * 2004-11-26 2007-11-28 Lg电子株式会社 Air conditioning system

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