KR101139760B1 - An air conditioning system with prevent the overheat of compressor - Google Patents

An air conditioning system with prevent the overheat of compressor Download PDF

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KR101139760B1
KR101139760B1 KR1020110063432A KR20110063432A KR101139760B1 KR 101139760 B1 KR101139760 B1 KR 101139760B1 KR 1020110063432 A KR1020110063432 A KR 1020110063432A KR 20110063432 A KR20110063432 A KR 20110063432A KR 101139760 B1 KR101139760 B1 KR 101139760B1
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South Korea
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heat exchanger
compressor
refrigerant
low
pressure
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KR1020110063432A
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Korean (ko)
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안동철
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안동철
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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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by 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
    • 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
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/18—Optimization, e.g. high integration of refrigeration components

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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

PURPOSE: A cooling-and-heating system preventing a compressor from being overheated is provided to operate a compressor in an optimum condition, to reduce the energy consumption, and to enhance the efficiency of a cooling-and-heating system. CONSTITUTION: A cooling-and-heating system preventing a compressor from being overheated comprises a compressor(110), a first expansion valve, a second expansion valve, a plurality of heat exchanger, a first overheat prevention line(310), and a second overheat prevention line. The heat exchangers are classified into an outdoor heat exchanger(170), a first indoor heat exchanger, and a second indoor heat exchanger. The first overheat prevention line supplies heat of refrigerant becoming a state of low temperature after passing through the first expansion valve of a side of the first indoor heat exchanger to the outer side of the compressor. Liquid receivers of a high pressure side and low pressure side are comprised to maintain the refrigerant amount of the high and low pressure sides of the first indoor heat exchanger. An accumulator(175) is comprised to prevent damages of the compressor before inputting to the compressor.

Description

압축기의 과열을 방지하는 냉난방 시스템{an air conditioning system with prevent the overheat of compressor}An air conditioning system with prevent the overheat of compressor

본 발명은 팽창변을 통과하면서 저온상태로 되는 냉매의 열량을 압축기에 공급토록 과열방지라인이 구비되는 구성으로 원하는 고온고압의 냉매 공급이 가능토록 하는 압축기의 과열을 방지하는 냉난방 시스템에 관한 것이다.The present invention relates to a cooling and heating system for preventing overheating of a compressor for supplying a refrigerant at a desired high temperature and high pressure in a configuration in which an overheat prevention line is provided to supply a heat amount of a refrigerant to a compressor while passing through an expansion valve.

히트 펌프는 에어컨의 냉각 사이클(cooling cycle)에서 냉매의 흐름을 역전환(逆轉換)시킴으로써 냉방(冷房)과 난방(煖房)을 겸할 수 있는 공기 조절장치의 하나로써 특히 계절에 구애받지 않고 사용할 수 있는 장점에 따라 점차적으로 그 사용영역이 확대되고 있다.The heat pump is one of the air conditioners that can serve both cooling and heating by reversing the flow of refrigerant in the cooling cycle of the air conditioner. Increasingly, the area of use is gradually expanding.

일반적인 히트펌프에 있어서 공냉식 실외측 열교환기가 갖는 열교환 온도범위인 상온 이하로 냉각시킬 수 없는 한계성을 극복하여 결과적으로 히트펌프의 성능을 향상시키기 위하여 상기 실외측 열교환기의 열교환방식을 수냉식으로 제작하여 사용한 종래의 수냉식 히트펌프를 이용한 냉난방장치가 특허등록 제547670호에 게재되어 있으며 그 구성은 도 1에 도시한 바와같이, 히트펌프는 압축기(1),사방밸브(4), 실내 열교환기(3), 냉방팽창관(10), 열교환용 수액분리기(20), 난방팽창관(30), 실외 열교환기(40), 이중관(50) 및 열교환관(60)으로 크게 구성된다.In order to overcome the limitation that can not be cooled below the room temperature of the heat exchanger temperature range of the air-cooled outdoor heat exchanger in the general heat pump, and to improve the performance of the heat pump, the heat exchange method of the outdoor heat exchanger was produced by water cooling A conventional heating and cooling device using a water-cooled heat pump is disclosed in Patent Registration No. 547670. The configuration of the heat pump is a compressor (1), a four-way valve (4), and an indoor heat exchanger (3). , The cooling expansion tube 10, the heat-transfer sap separator 20, the heating expansion tube 30, the outdoor heat exchanger 40, the double tube 50, and the heat exchange tube 60.

이때, 상기 압축기(1)와 사방밸브(4) 및 실내 열교환기(3)는 제 1냉매관(11)으로 연결되어 있고, 상기 실내 열교환기(3)와 열교환용 수액분리기(20)는 제 2냉매관(12)으로 연결되며, 상기 열교환용 수액분리기(20)와 난방팽창관(30)은 제 3냉매관(13)으로 연결된다.At this time, the compressor (1), the four-way valve (4) and the indoor heat exchanger (3) is connected to the first refrigerant pipe (11), the indoor heat exchanger (3) and the heat exchange fluid separator (20) It is connected to the two refrigerant pipes 12, the heat exchange fluid separator 20 and the heating expansion pipe 30 is connected to the third refrigerant pipe (13).

그리고, 상기 난방팽창관(30)과 실외 열교환기(40)는 제 4냉매관(14)으로 연결되며, 상기 실외 열교환기(40)와 이중관(50)과 사방밸브(4) 및 열교환용 수액분리기(20)는 제 5냉매관(15)으로 연결되고, 상기 열교환용 수액분리기(20)와 압축기(1)는 제 6냉매관(16)으로 연결되며, 상기 냉방팽창관(10)은 제 2냉매관(12)에서 분지되면서 분지되는 지점에 체크밸브(80)가 구비되는 구성으로 이루어 진다.The heating expansion tube 30 and the outdoor heat exchanger 40 are connected to the fourth refrigerant pipe 14, and the outdoor heat exchanger 40, the double pipe 50, the four-way valve 4, and the heat exchange fluid Separator 20 is connected to the fifth refrigerant pipe 15, the heat exchanger fluid separator 20 and the compressor 1 is connected to the sixth refrigerant pipe 16, the cooling expansion tube 10 is 2 is made of a configuration in which the check valve 80 is provided at the branched branch from the refrigerant pipe (12).

상기와 같은 구성으로 이루어진 압축기(1)는 냉매를 압축하여 고온 고압 상태로 변환하는 기능을 수행하고, 상기 사방밸브(4)는 압축기(1)의 출구측에 형성되어 냉매를 난방시 실내 열교환기(3) 방향으로 냉방시 이중관(50) 방향으로 흐름을 전환시키며, 상기 실내 열교환기(3)는 난방운전시 냉매를 응축시키는 응축기 역할을 하고, 냉방운전시 냉매를 증발시키는 증발기 역할을 하며 방출 또는 흡수에 의하여 열교환을 수행한다.Compressor (1) having the configuration as described above performs a function to convert the refrigerant to a high temperature and high pressure state, the four-way valve (4) is formed on the outlet side of the compressor (1) to heat the refrigerant during the indoor heat exchanger In the direction of cooling (3), the flow is switched in the direction of the double pipe (50), the indoor heat exchanger (3) acts as a condenser to condense the refrigerant during heating operation, serves as an evaporator to evaporate the refrigerant during cooling operation and discharge Or by heat absorption.

또한, 상기 냉방팽창관(10)은 난방시 실내 열교환기(3)의 토출측과 연결되고, 고온 고압 상태의 냉매를 안내하는 제 1냉매관(11)에 감김으로써 실내 열교환기(3)에서 응축되며 열을 방출함에 따라 온도가 저하된 냉매의 온도를 보상하고 냉방시 열교환된 냉매를 팽창시키며, 상기 열교환용 수액분리기(20)는 난방시 제 2냉매관(12)을 통해 이동하는 응축된 냉매를 통과시켜 제 3냉매관(13)을 통해 난방팽창관(30)으로 안내함과 동시에 실외 열교환기(40) 및 사방밸브(4)를 통과한 2상의 저온 저압 상태인 냉매를 제 5냉매관(15)을 통해 유입하면서 상호 냉매를 열교환시키는 것이다.In addition, the cooling expansion tube 10 is connected to the discharge side of the indoor heat exchanger (3) during heating, and condensed in the indoor heat exchanger (3) by being wound around the first refrigerant pipe (11) for guiding the refrigerant in a high temperature and high pressure state. And compensates the temperature of the refrigerant whose temperature is lowered as heat is released, and expands the heat exchanged refrigerant during cooling, and the heat exchanged fluid separator 20 moves through the second refrigerant pipe 12 during heating. The refrigerant flow in the low-temperature low-pressure state of the two phases passing through the third refrigerant pipe 13 to the heating expansion tube 30 and passed through the outdoor heat exchanger 40 and the four-way valve (4) through the third refrigerant pipe (13) It is to exchange heat between the refrigerant while flowing through the (15).

그러나, 상기와 같은 히트펌프는, 압축기가 정형화되는 구성으로 외부의 기후 조건이나 동작상태등에 의해 과부하가 발생시 압력의 형성이 힘들게 되어 냉난방기의 성능을 일정하게 유지함은 물론 원하는 압력 및 온도조건의 유지가 힘들게 되는 단점이 있는 것이다.However, the heat pump as described above has a configuration in which the compressor is standardized, so that it is difficult to form pressure when an overload occurs due to external weather conditions or operating conditions, and thus maintains the performance of the air conditioner and maintains the desired pressure and temperature conditions. The disadvantage is that it is difficult.

상기와 같은 종래의 문제점들을 개선하기 위한 본 발명의 목적은, 압축기를 최적의 상태로 운전할 수 있도록 되며, 에너지 낭비를 줄일 수 있도록 하면서 무제상 운전 및 냉매를 일정한 상태로서 순환하여 냉난방 시스템의 효율을 높일 수 있도록 하고, 냉매를 원하는 온도 및 압력조건으로 변화시킴으로써 운전 비용의 절감을 구현할 수 있으면서 최적운전이 가능토록 하는 압축기의 과열을 방지하는 냉난방 시스템을 제공하는 데 있다.An object of the present invention for improving the conventional problems as described above, it is possible to operate the compressor in an optimal state, while reducing the waste of energy while circulating the defrosting operation and the refrigerant in a constant state to improve the efficiency of the heating and cooling system The present invention provides a cooling and heating system for preventing the overheating of a compressor that can be operated while reducing the operating cost by changing the refrigerant to a desired temperature and pressure condition.

본 발명은 상기 목적을 달성하기 위하여, 압축기와 팽창변 및 복수의 열교환기를 순환하는 히트펌프 냉난방 시스템에 있어서,In order to achieve the above object, the present invention provides a heat pump cooling and heating system for circulating a compressor, an expansion valve, and a plurality of heat exchangers.

상기 열교환기가 실외측열교환기와 제1실내측열교환기와 제2실내측열교환기로 구분설치되고,The heat exchanger is divided into an outdoor side heat exchanger, a first indoor side heat exchanger and a second indoor side heat exchanger,

상기 제1실내측열교환기 일측의 제1팽창변을 통과한 후 저온상태로 되는 냉매의 열량을 압축기의 외측에 공급하는 과열방지라인이 구비되는 구성으로 이루어진 압축기의 과열을 방지하는 냉난방 시스템을 제공한다.Provided is a heating and cooling system for preventing overheating of the compressor comprising a overheat prevention line for supplying the heat amount of the refrigerant to the low temperature state after passing through the first expansion valve on one side of the first indoor heat exchanger. .

그리고, 본 발명은 제1실내측열교환기가 다수의 시트가 적층되는 판형으로 형성되면서 일측으로 탄소히터를 구비하면서 순환모터를 갖는 탱크가 연결되는 구성으로 이루어진 압축기의 과열을 방지하는 냉난방 시스템을 제공한다.In addition, the present invention provides a cooling and heating system for preventing overheating of a compressor having a configuration in which a tank having a circulating motor is connected with a carbon heater on one side while the first indoor heat exchanger is formed in a plate shape in which a plurality of sheets are stacked. .

더하여, 본 발명은 냉방시, 압축기에서 공급되는 고온고압의 냉매는 실외측열교환기에 전달되어 열교환되면서 저온고압의 냉매로 변화된 후 제2팽창변을 통하여 저온저압의 냉매로 변화되어 제2실내측열교환기에 공급되고, 상기 제2실내측열교환기를 통과한 냉매는 압축기에 리턴되도록 하는 압축기의 과열을 방지하는 냉난방 시스템을 제공한다.In addition, the present invention, when cooling, the high-temperature high-pressure refrigerant supplied from the compressor is transferred to the outdoor side heat exchanger, the heat exchanger is converted into a low-temperature high-pressure refrigerant while the heat exchanger is converted into a low-temperature low-pressure refrigerant through a second expansion valve to the second indoor heat exchanger Provided is a cooling and heating system that prevents overheating of the compressor so that the refrigerant passing through the second indoor heat exchanger is returned to the compressor.

또한, 본 발명은 난방시, 압축기에서 공급되는 고온고압의 냉매가 제1실내측열교환기를 통과하면서 저온고압의 냉매로 변환된 후 제1팽창변에 공급되어 저온저압의 냉매로 변화되고, 상기 저온저압의 냉매는 제상을 방지토록 히터가 구비되는 공급라인을 통하여 실외측열교환기에 공급된 후 압축기에 리턴되도록 설치되는 압축기의 과열을 방지하는 냉난방 시스템을 제공한다.In addition, the present invention, when heating, the high-temperature high-pressure refrigerant supplied from the compressor is converted into a low-temperature high-pressure refrigerant while passing through the first indoor heat exchanger is supplied to the first expansion valve is changed to a low-temperature low-pressure refrigerant, the low temperature low pressure It provides a cooling and heating system to prevent overheating of the compressor is installed to be returned to the compressor after being supplied to the outdoor side heat exchanger through a supply line provided with a heater to prevent defrost.

그리고, 본 발명의 과열방지라인은 실외측열교환기의 투입전에 연결되며, 제1실내측열교환기의 고압 및 저압측 냉매량을 일정하게 유지토록 고압측수액기와 저압측수액기가 각각 구비되고, 압축기의 투입전에 압축기의 손상을 방지토록 액분리기가 구비되는 압축기의 과열을 방지하는 냉난방 시스템을 제공한다.And, the overheat prevention line of the present invention is connected before the input of the outdoor side heat exchanger, and the high pressure side receiver and the low pressure side receiver are respectively provided to maintain a constant amount of the high pressure and low pressure side refrigerant of the first indoor side heat exchanger, The present invention provides a cooling and heating system for preventing overheating of a compressor equipped with a liquid separator to prevent damage to the compressor before feeding.

이상과 같이 본 발명에 의하면, 압축기를 최적의 상태로 운전하며, 에너지 낭비를 줄이면서 무제상 운전 및 냉매를 일정한 상태로서 순환하여 냉난방 시스템의 효율을 높이고, 냉매를 원하는 온도 및 압력조건으로 변화시켜 운전 비용의 절감과 최적운전이 가능한 효과가 있는 것이다.As described above, according to the present invention, while operating the compressor in an optimal state, while reducing energy waste, circulating the defrosting operation and the refrigerant in a constant state to increase the efficiency of the cooling and heating system, and to change the refrigerant to the desired temperature and pressure conditions It is possible to reduce the operating cost and achieve the optimal operation.

도1은 종래의 냉난방장치를 도시한 회로도이다.
도2는 본 발명에 따른 냉난방시스템을 도시한 회로도이다.1 is a circuit diagram showing a conventional heating and cooling device.
Figure 2 is a circuit diagram showing a heating and cooling system according to the present invention.

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

도2는 본 발명에 따른 냉난방시스템을 도시한 회로도이다.Figure 2 is a circuit diagram showing a heating and cooling system according to the present invention.

본 발명의 히트펌프냉,난방기(100)는, 압축기(110)와 제1,2실내측열교환기(130)(150) 및 제1,2팽창변(161)(165)과 실외측열교환기(170)가 일체로 연결되는 구성으로 사방밸브(500)를 통하여 냉매가 정방향 또는 역방향으로 순환하도록 설치된다.In the heat pump cooling and heating apparatus 100 of the present invention, the compressor 110 and the first and second indoor side heat exchangers 130 and 150 and the first and second expansion sides 161 and 165 and the outdoor side heat exchanger ( 170 is integrally connected to the refrigerant through the four-way valve 500 is installed to circulate in the forward or reverse direction.

상기 제1실내측열교환기(130) 일측의 제1팽창변(161)을 통과한 후 저온상태로 되는 냉매 열량을 압축기(110)의 외측에 공급하는 제1과열방지라인(310)이 구비된다.After passing through the first expansion side 161 of one side of the first indoor side heat exchanger 130, a first overheat prevention line 310 is provided to supply the calorific value of the coolant to the outside of the compressor 110.

더하여, 상기 제1과열방지라인(310)은 저온상태의 냉매 열량을 압축기에서 실외측열교환기(170)에 냉매를 공급하는 공급라인의 제2과열방지라인(330)에 연결된다.In addition, the first overheat prevention line 310 is connected to the second overheat prevention line 330 of the supply line for supplying the refrigerant heat of the low temperature state refrigerant from the compressor to the outdoor side heat exchanger 170.

그리고, 상기 제1실내측열교환기(130)가 다수의 시트가 적층되는 판형으로 형성된다.In addition, the first indoor heat exchanger 130 is formed in a plate shape in which a plurality of sheets are stacked.

이때, 상기 제1실내측열교환기(130)는, 탄소히터(410)를 구비하면서 순환모터(430)를 갖는 탱크(450)가 연결되는 열량사용부(400)가 연결되어 열교환하도록 설치된다.In this case, the first indoor heat exchanger 130 is installed to have a carbon heater 410 and a heat quantity using unit 400 to which the tank 450 having the circulation motor 430 is connected to be connected to heat exchange.

그리고, 상기 제1실내측열교환기(130)의 고압 및 저압측 냉매량을 일정하게 유지토록 고압측수액기(133)와 저압측수액기(135)가 각각 구비된다.In addition, the high pressure side receiver 133 and the low pressure side receiver 135 are respectively provided to maintain a constant amount of the high pressure and the low pressure side refrigerant of the first indoor side heat exchanger 130.

또한, 상기 압축기(110)의 투입전에 압축기의 손상을 방지토록 액분리기(175)가 구비된다.In addition, a liquid separator 175 is provided to prevent damage to the compressor before the compressor 110 is introduced.

더하여, 본 발명은 냉방시, 압축기(110)에서 공급되는 고온고압의 냉매는 실외측열교환기(170)에 전달되어 열교환되면서 저온고압의 냉매로 변화된 후 제2팽창변(165)을 통하여 저온저압의 냉매로 변화되어 제2실내측열교환기(150)에 공급되고, 상기 제2실내측열교환기(150)를 통과한 냉매는 압축기(110)에 리턴되도록 설치된다.In addition, the present invention, when cooling, the high-temperature high-pressure refrigerant supplied from the compressor 110 is transferred to the outdoor side heat exchanger (170) and is converted into a low-temperature high-pressure refrigerant while being heat exchanged to the low temperature low pressure through the second expansion side (165) The refrigerant is converted into a refrigerant and supplied to the second indoor heat exchanger 150, and the refrigerant passing through the second indoor heat exchanger 150 is installed to be returned to the compressor 110.

또한, 본 발명은 난방시, 압축기(110)에서 공급되는 고온고압의 냉매가 제1실내측열교환기(130)를 통과하면서 저온고압의 냉매로 변환된 후 제1팽창변(161)에 공급되어 저온저압의 냉매로 변화되고, 상기 저온저압의 냉매는 제상을 방지토록 히터(177a)가 구비되는 공급라인(177)을 통하여 실외측열교환기(170)에 공급된 후 압축기(110)에 리턴되도록 설치된다.In addition, the present invention, when heating, the high-temperature high-pressure refrigerant supplied from the compressor 110 is converted into a low-temperature high-pressure refrigerant while passing through the first indoor heat exchanger 130 is supplied to the first expansion side 161 is a low temperature Changed to a low pressure refrigerant, the low temperature low pressure refrigerant is supplied to the outdoor side heat exchanger (170) through a supply line 177 is provided with a heater (177a) to prevent defrost installed to return to the compressor 110 do.

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

도2에서 도시한 바와같이 본 발명의 히트펌프냉,난방기(100)는, 폐회로를 형성하도록 연결되는 압축기(110)와 제1,2실내측열교환기(130)(150) 및 제1,2팽창변(161)(165)과 실외측열교환기(170)를 냉매가 흐르도록 설치될 때 사방밸브(500)를 통하여 냉매의 흐름이 정방향 또는 역방향으로 순환하면서 실내에 열량을 공급하거나 실내의 열을 흡수토록 하는 열교환이 이루어 진다.As shown in FIG. 2, the heat pump cooling and heating apparatus 100 of the present invention includes a compressor 110 and first and second indoor heat exchangers 130 and 150 and first and second connected to form a closed circuit. When the expansion valves 161 and 165 and the outdoor side heat exchanger 170 are installed to flow through the refrigerant, the refrigerant flows through the four-way valve 500 in a forward or reverse direction to supply heat to the room or to heat the room. Heat exchange is performed to absorb.

즉, 냉방시, 압축기(110)에서 공급되는 고온고압의 냉매는 실외측열교환기(170)에 전달되어 상대적으로 저온상태의 외부공기등과 열교환되면서 저온고압의 냉매로 변화된 후 제2팽창변(165)을 통하여 저온저압의 냉매로 변화되어 제2실내측열교환기(150)에 공급되어 실내에 차가운 공기를 공급하게 된다.That is, during cooling, the high temperature and high pressure refrigerant supplied from the compressor 110 is transferred to the outdoor side heat exchanger 170 and is converted into a low temperature high pressure refrigerant while being heat exchanged with the external air in a relatively low temperature state, followed by a second expansion valve 165. It is converted into a refrigerant of low temperature and low pressure through a) is supplied to the second indoor side heat exchanger 150 to supply cold air to the room.

그리고, 난방시, 압축기(110)에서 공급되는 고온고압의 냉매가 제1실내측열교환기(130)를 통과하면서 실내에 열량을 공급하여 실내온도를 높이도록 할 때 저온고압의 냉매로 변환되고, 상기 냉매는 제1팽창변(161)에 공급되어 팽창하면서 저온저압의 냉매로 변화된다.And, during heating, when the high temperature and high pressure refrigerant supplied from the compressor 110 passes through the first indoor heat exchanger 130 to supply heat to the room to increase the room temperature, the refrigerant is converted into a low temperature and high pressure refrigerant. The refrigerant is supplied to the first expansion edge 161 and expands into a refrigerant having a low temperature and low pressure.

이때, 상기 저온저압의 냉매는 제상을 방지토록 히터(177a)가 구비되는 공급라인(177)을 통하여 실외측열교환기(170)에 공급되어 히터로 부터 공급되는 열량에 의해 액상의 냉매가 공급되거나 겨울철 사용시 발생되는 제상문제를 해소토록 한다.At this time, the low-temperature low-pressure refrigerant is supplied to the outdoor side heat exchanger 170 through a supply line 177 provided with a heater 177a to prevent defrosting is supplied to the liquid refrigerant by the amount of heat supplied from the heater or Defrost problems caused during winter use will be solved.

상기 제1실내측열교환기(130) 일측의 제1팽창변(161)을 통과한 후 저온상태로 되는 냉매 열량을 압축기(110)의 외측에 공급하는 제1과열방지라인(310)이 구비되어 적은 용량의 압축기(110)를 사용할 때 발생되는 과열현상을 방지하여 적은 용량의 압축기(110)를 사용하여도 필요로 하는 냉,난방시스템의 구현이 가능토록 된다.After passing through the first expansion side 161 of one side of the first indoor heat exchanger 130, a first overheat prevention line 310 for supplying the heat of the refrigerant that is brought to a low temperature to the outside of the compressor 110 is provided. It is possible to implement the cooling and heating system required even by using the compressor 110 having a small capacity by preventing overheating generated when using the compressor 110 of the capacity.

더하여, 상기 제1과열방지라인(310)은 저온상태의 냉매 열량을 압축기에서 실외측열교환기(170)에 냉매를 공급하는 공급라인의 제2과열방지라인(330)에 연결되어 실외측열교환기(170)의 과열을 방지하게 된다.In addition, the first overheat prevention line 310 is connected to the second overheat prevention line 330 of the supply line for supplying the refrigerant heat of the low temperature state from the compressor to the outdoor side heat exchanger 170 in the compressor. Overheating of 170 is prevented.

그리고, 상기 제1실내측열교환기(130)는, 탄소히터(410)를 구비하면서 순환모터(430)를 갖는 탱크(450)가 연결되는 열량사용부(400)가 연결되어 제1실내측열교환기(130)로 부터 열량을 공급받아 온돌이나 온수등으로 사용토록 하고, 열량 부족시 탄소히터(410)를 통하여 가열토록 하여 급탕 등 다영한 용도로 사용토록 된다.The first indoor heat exchanger 130 has a carbon heater 410 and is connected to a calorie use unit 400 to which a tank 450 having a circulation motor 430 is connected to the first indoor heat exchanger. The heat is supplied from the machine 130 to be used as ondol or hot water, and when the heat is insufficient, the carbon heater 410 is heated so as to be used for many purposes such as hot water supply.

그리고, 상기 제1실내측열교환기(130)의 고압 및 저압측 냉매량을 일정하게 유지토록 고압측수액기(133)와 저압측수액기(135)가 각각 구비되는 구성으로 압력상태에 상관없이 냉매의 량을 일정하게 유지하여 공급토록 한다.In addition, the high-pressure side fluid receiver 133 and the low-pressure side fluid receiver 135 are respectively provided to maintain a constant amount of the high pressure and the low pressure side refrigerant of the first indoor side heat exchanger 130, regardless of the pressure state. Keep the quantity constant and supply it.

또한, 상기 압축기(110)의 투입전에 압축기의 손상을 방지토록 액분리기(175)가 구비되어 액상의 냉매가 압축기에 공급되어 발생되는 문제점을 해소토록 하는 것이다.In addition, the liquid separator 175 is provided to prevent damage to the compressor before the compressor 110 is introduced to solve the problem caused by the supply of the liquid refrigerant to the compressor.

110...압축기 170...실외측열교환기
175...액분리기 310...제1과열방지라인
410...탄소히터 430...순화모터
500...사방밸브110 Compressor 170 ...
175 Liquid separator 310, first overheat protection line
410 Carbon heater 430 Purifying motor
500 valves

Claims (5)

압축기와 제1,2팽창변 및 복수의 열교환기를 순환하는 히트펌프 냉난방 시스템에 있어서,
상기 열교환기가 실외측열교환기와 제1실내측열교환기와 제2실내측열교환기로 구분설치되고,
상기 제1실내측열교환기 일측의 제1팽창변을 통과한 후 저온상태로 되는 냉매의 열량을 압축기의 외측에 공급하는 제1과열방지라인이 구비되고,
상기 제1과열방지라인은 실외측열교환기의 투입전에 연결되도록 제2과열방지라인이 연결되며, 상기 제1실내측열교환기의 고압 및 저압측 냉매량을 일정하게 유지토록 고압측수액기와 저압측수액기가 각각 구비되고, 압축기의 투입전에 압축기의 손상을 방지토록 액분리기가 구비되는 것을 특징으로 하는 압축기의 과열을 방지하는 냉난방 시스템.In the heat pump air conditioning system for circulating the compressor, the first and second expansion sides and the plurality of heat exchangers,
The heat exchanger is divided into an outdoor side heat exchanger, a first indoor side heat exchanger and a second indoor side heat exchanger,
A first overheat prevention line is provided for supplying the heat amount of the refrigerant to the outside of the compressor after passing through the first expansion valve on one side of the first indoor side heat exchanger,
The first overheat prevention line is connected to the second overheat prevention line so as to be connected before input of the outdoor side heat exchanger, and the high pressure side fluid and the low pressure side fluid to maintain a constant amount of the high pressure and low pressure side refrigerant of the first indoor heat exchanger. Each air conditioner is provided with a liquid separator to prevent damage to the compressor before the compressor is introduced. 제1항에 있어서, 상기 제1실내측열교환기가 다수의 시트가 적층되는 판형으로 형성되면서 일측으로 탄소히터를 구비하면서 순환모터를 갖는 탱크가 연결되는 구성으로 이루어진 것을 특징으로 하는 압축기의 과열을 방지하는 냉난방 시스템.The compressor of claim 1, wherein the first indoor heat exchanger is formed in a plate shape in which a plurality of sheets are stacked, and a tank having a circulation motor is connected to one side with a carbon heater to prevent overheating of the compressor. Heating and cooling system. 삭제delete 제1항에 있어서, 상기 냉난방시스템은, 냉방시, 압축기에서 공급되는 고온고압의 냉매는 실외측열교환기에 전달되어 열교환되면서 저온고압의 냉매로 변화된 후 제2팽창변을 통하여 저온저압의 냉매로 변화되어 제2실내측열교환기에 공급되고, 상기 제2실내측열교환기를 통과한 냉매는 압축기에 리턴되도록 설치되는 것을 특징으로 하는 압축기의 과열을 방지하는 냉난방 시스템.According to claim 1, The air-conditioning system, when cooling, the high-temperature high-pressure refrigerant supplied from the compressor is transferred to the outdoor side heat exchanger and the heat exchanger is converted into a low-temperature high-pressure refrigerant through a second expansion valve is changed to a low-temperature low-pressure refrigerant And a refrigerant supplied to a second indoor heat exchanger and passed through the second indoor heat exchanger is returned to the compressor. 제1항에 있어서, 상기 냉난방시스템은, 난방시, 압축기에서 공급되는 고온고압의 냉매가 제1실내측열교환기를 통과하면서 저온고압의 냉매로 변환된 후 제1팽창변에 공급되어 저온저압의 냉매로 변화되고, 상기 저온저압의 냉매는 제상을 방지토록 히터가 구비되는 공급라인을 통하여 실외측열교환기에 공급된 후 압축기에 리턴되도록 설치되는 것을 특징으로 하는 압축기의 과열을 방지하는 냉난방 시스템.
According to claim 1, The heating and cooling system, when heating, the high-temperature high-pressure refrigerant supplied from the compressor is converted into a low-temperature high-pressure refrigerant while passing through the first room-side heat exchanger is supplied to the first expansion valve to the low-temperature low-pressure refrigerant The cooling and heating system of the compressor, wherein the refrigerant having a low temperature and low pressure is supplied to an outdoor side heat exchanger through a supply line provided with a heater to prevent defrosting and then returned to the compressor.
KR1020110063432A 2011-06-29 2011-06-29 An air conditioning system with prevent the overheat of compressor KR101139760B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526525A (en) * 1991-07-16 1993-02-02 Daikin Ind Ltd Overheat preventing device for compressor motor for two-stage freezer
JP2004108334A (en) 2002-09-20 2004-04-08 Sanyo Electric Co Ltd Refrigerant circuit device
KR20100024645A (en) * 2008-08-26 2010-03-08 엘지전자 주식회사 Hot water circulation system associated with heat pump and method for controlling the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0526525A (en) * 1991-07-16 1993-02-02 Daikin Ind Ltd Overheat preventing device for compressor motor for two-stage freezer
JP2004108334A (en) 2002-09-20 2004-04-08 Sanyo Electric Co Ltd Refrigerant circuit device
KR20100024645A (en) * 2008-08-26 2010-03-08 엘지전자 주식회사 Hot water circulation system associated with heat pump and method for controlling the same

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