KR20120130696A - Heat pump system - Google Patents

Heat pump system Download PDF

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KR20120130696A
KR20120130696A KR1020120048017A KR20120048017A KR20120130696A KR 20120130696 A KR20120130696 A KR 20120130696A KR 1020120048017 A KR1020120048017 A KR 1020120048017A KR 20120048017 A KR20120048017 A KR 20120048017A KR 20120130696 A KR20120130696 A KR 20120130696A
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South Korea
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heat exchanger
heat
way valve
cooling
outdoor
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KR1020120048017A
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Korean (ko)
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KR101258182B1 (en
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진주환
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진주환
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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
    • 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
    • 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
    • F25B2313/02731—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one three-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
    • 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

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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)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

PURPOSE: A heat pump system is provided with improved performance as high temperature and pressure refrigerant steam is smoothly re-condensed. CONSTITUTION: A heat pump system comprises a basic cooling cylinder, a heat exchanger(21), a defrosting and cooling unit(20), and a function improving unit(30). The basic cooling cycle connects a compressor(1), a four way valve(12), an indoor heat exchanger(13), a cooling expansion valve(14), a heating expansion valve(15), and an outdoor heat exchanger(16) to a cooling pipe(17) in order. The basic cooling cycle connects the four way valve and compressor to a refrigerant intake pipe. The defrosting and cooling unit connects a sub heat exchanger and heat exchanger to a return pipe and heat medium supply pipe so that a closed circuit is formed. The function improving unit is installed between the outdoor heat exchanger and the four way valve.

Description

히트 펌프 시스템{HEAT PUMP SYSTEM}[0001] HEAT PUMP SYSTEM [0002]

본 발명은 히트 펌프 시스템에 관한 것이며, 상세하게는 공기 열원형 히트 펌프 시스템의 실외 열교환기의 제상 및 냉각구조에 관한 것이다.The present invention relates to a heat pump system, and more particularly, to a defrosting and cooling structure of an outdoor heat exchanger of an air heat source heat pump system.

주지하는 바와 같이, 히트 펌프는 증기 압축식 냉동 사이클을 냉각(냉동) 운전시와 반대로 운전하여 즉 가열 운전시는 실내 열교환기를 응축기로, 실외 열교환기를 증발기로 작용하게 하고, 냉각 운전시는 실외 열교환기를 응축기로, 실내 열교환기를 증발기로 작용하게 하는 것임으로 성적계수를 향상하기 위하여서는 실외 열교환기에서 냉매의 증발 또는 응축이 양호하여야 한다.As is well known, the heat pump operates the steam compression refrigeration cycle in the opposite direction to the cooling (freezing) operation, i.e., the indoor heat exchanger acts as the condenser, the outdoor heat exchanger as the evaporator during the heating operation, and the outdoor heat exchanger during the cooling operation. In order to improve the coefficient of performance, the refrigerant is evaporated or condensed in the outdoor heat exchanger.

그런데 공기 열원형 히트 펌프는 상기 실외 열교환기를 외기에 노출되게 설치하여 외기에 의하여 냉매를 증발시키거나 응축시킴으로 특히 가열 운전시 외기온도가 노점온도 이하로 하강하면 증발기로 작용하는 실외 열교환기의 표면에 서리가 맺힘으로 냉매증기의 증발 저하 내지 불가능 현상이 발생하여 성적계수가 대폭 저하되거나, 운전불능 현상을 초래하고, 한편 냉각 운전시 외기온도가 높을 때에는 응축기로 작용하는 실외 열교환기에서 냉매액의 응축이 불량하여 성적계수가 저하되고 있는바, 상기한 문제점의 해결이 히트 펌프의 기술개발 핵심주제 중 하나가 되고 있다.However, the air heat source heat pump is installed to expose the outdoor heat exchanger to the outside air to evaporate or condense the refrigerant by the outside air, especially when the outside air temperature falls below the dew point temperature during the heating operation. Condensation of the refrigerant liquid in the outdoor heat exchanger, which acts as a condenser when the frost condenses, may cause the evaporation of the refrigerant vapor to evaporate or become impossible. The poor coefficient of performance is deteriorating, and the above-mentioned problem has been solved, which is one of the key topics in the development of heat pump technology.

상기한 문제점 중 가열 운전시의 성적계수의 저하 또는 운전불능을 해결하기 위하여 냉동 사이클을 역 사이클로 변환 운전하여 즉 증발기로 작용시키던 실외 열교환기를 응축기로 작용시키거나, 실외 열교환기에 전열 히터를 부설하여서, 그 표면에 부착된 서리를 제상함으로써 성적계수의 저하를 방지하는 것이 주지되었으나, 전자는 가열운전 중단 상태를 초래하고, 후자는 성적계수의 개선이 미미할 뿐 아니라 별도의 에너지가 필요하게 되는 것이다.  Among the above problems, in order to solve the decrease or malfunction of the coefficient during heating operation, the refrigeration cycle is converted into a reverse cycle, that is, the outdoor heat exchanger acting as an evaporator is acted as a condenser, or an electrothermal heater is installed in the outdoor heat exchanger. It is well known to deteriorate the coefficient of frost by defrosting the frost attached to the surface, but the former causes the heating operation to be interrupted, and the latter is not only to improve the coefficient of coefficient but also requires extra energy.

한편 최근에는 대기 공해에 따른 환경오염의 저감과 에너지 비용의 절감이 사회문제로 대두됨으로써 특히 각 산업분야에서 상기 사회문제의 해결에 총력을 경주하고 있는 실정이다.On the other hand, in recent years, the reduction of environmental pollution and energy costs due to the air pollution has emerged as a social problem, especially in each industry sector is trying to solve the social problem.

상기한 주지된 제상기술 즉 역 사이클 운전 및 전열 히터 부설의 문제점을 시정하고, 무비용 열원에 의하여 성적계수를 향상한 공기 열원형 히트 펌프 시스템의 실외 열교환기의 제상 및 냉각 촉진구조에 관한 발명이 특허문헌 1 에 개시되어 있다. The invention relates to the defrosting and cooling promotion structure of the outdoor heat exchanger of the air heat source heat pump system, which corrects the problems of the known defrosting technology, namely reverse cycle operation and heat heater installation, and improves the coefficient of performance by the non-heating heat source. It is disclosed by patent document 1.

상기한 특허문헌 1 의 공기 열원형 히트 펌프 시스템의 실외 열교환기의 제상 및 냉각 촉진구조는 압축기, 4 웨이 밸브, 실내 열교환기, 냉각용 팽창밸브, 가열용 팽창밸브, 실외 열교환기 및 상기 4 웨이 밸브를 냉매도관으로 순서대로 연결하고, 상기 4 웨이 밸브와 압축기를 냉매 흡입도관으로 연결한 기본 냉동회로와; 상기 냉매도관의 양 팽창밸브 사이에 바이패스 냉매도관의 양단을 연결하여 상기 바이패스 냉매도관에 가열용 열교환기를 설치함과 아울러 상기 가열용 열교환기를 포위하여 설치하고, 내부에 열매체를 주입한 축열조와; 상기 축열조에 열매체 순환펌프를 부설한 열매체 공급관과 열매체 복귀관으로 연결하여 상기 실외 열교환기에 설치한 보조 열교환기와; 상기 열매체 공급관 및 열매체 복귀관에 열매체 순환펌프 부설 열매체 공급관과 열매체 복귀관으로 열교환기를 설치하고, 상기 열교환기의 주위에 무비용 열원 저장조를 설치한 실외 열교환기 제상 및 냉각수단을 포함하여 구성한 것이다.The defrosting and cooling promotion structure of the outdoor heat exchanger of the air heat source heat pump system of Patent Document 1 includes a compressor, a four-way valve, an indoor heat exchanger, a cooling expansion valve, a heating expansion valve, an outdoor heat exchanger, and the four-way. A basic refrigeration circuit connecting the valves in order to the refrigerant conduit and connecting the four-way valve and the compressor to the refrigerant suction conduit; A heat storage tank in which both ends of the bypass refrigerant conduit are connected between both expansion valves of the refrigerant conduit to install a heat exchanger for the bypass refrigerant conduit, and surround the heating heat exchanger, and inject a heat medium therein; ; An auxiliary heat exchanger installed in the outdoor heat exchanger by connecting a heat medium supply pipe having a heat medium circulation pump to the heat storage tank and a heat medium return pipe; A heat exchanger is installed in the heat medium supply pipe and the heat medium return pipe, and the heat medium supply pipe and the heat medium return pipe are installed, and an outdoor heat exchanger defrost and cooling means is provided around the heat exchanger.

상기한 공기 열원형 히트 펌프 시스템의 실외 열교환기의 제상 및 냉각촉진구조는 무비용 열원 저장조에 공급되는 무비용 열원과 열교환기를 순환하는 열매체를 열교환시켜 가열 또는 냉각시킨 후 그 가열 또는 냉각된 열매체를 실외 열교환기에 설치한 보조 열교환기에 순환시켜 가열 운전시에는 실외 열교환기에 부착된 서리를 제상하고, 냉각 운전시에는 실외 열교환기를 냉각함으로써 성적계수를 향상하며, 그리고 상기 축열조에서 가열된 열매체는 무비용 열원의 양이 적을 때 가열 운전시 상기 보조 열교환기에 순환시켜 실외 열교환기를 제상하고, 실내 또는 실외 열교환기에서 응축된 냉매액을 과냉함으로써 성적계수를 양호하게 유지토록한 것이다.The defrosting and cooling promotion structure of the outdoor heat exchanger of the air heat source heat pump system is heat-exchanged by heat-exchanging the heat source circulating the heat source and the non-heat source supplied to the heat source storage tank for heat-free storage, and then heating or cooling the heat medium. By circulating the auxiliary heat exchanger installed in the outdoor heat exchanger to defrost the frost attached to the outdoor heat exchanger during the heating operation, and to improve the coefficient of performance by cooling the outdoor heat exchanger during the cooling operation, and the heat medium heated in the heat storage tank is a heat source for the non-heating tank. When the amount is small, the auxiliary heat exchanger is circulated to defrost the outdoor heat exchanger during the heating operation, and the cooling coefficient is maintained to be satisfactorily maintained by supercooling the refrigerant liquid condensed in the indoor or outdoor heat exchanger.

KR 10-0970870 (B1)KR 10-0970870 (B1)

그러나 상기한 공기 열원형 히트 펌프 시스템의 실외 열교환기의 제상 및 냉각 촉진구조는 실외 열교환기를 순환하는 냉매액 또는 냉매증기를 대기에 의하여 증발시키거나 응축시킬 때 공기 중에 포함된 열원(잠열)을 양호하게 이용하기 위하여 팬을 설치하는 강제 대류형 실외 열교환기를 사용하여야하며, 상기와 같이 강제 대류형 실외 열교환기에 설치한 보조 열교환기에 무비용 열원 저장조에서 가열된 일정 온도(20℃내외)의 열매체(브라인)를 순환시키면서 팬을 구동하여 실외 열교환기에 부착한 서리를 제상시킬 때 팬의 흡인력 또는 압송력에 의하여 무비용 열원과 열교환된 열매체의 보유열이 대기 중으로 손실(방출)됨으로써 무비용 열원의 활용 효율이 낮고, 상기와 같이 무비용 열원의 활용 효율이 낮으면 성적계수의 향상도 저조하게 되는 문제점이 있게 되는 것이다.However, the defrosting and cooling facilitation structure of the outdoor heat exchanger of the air heat source heat pump system provides good heat source (latent heat) contained in the air when the refrigerant liquid or refrigerant vapor circulating the outdoor heat exchanger is evaporated or condensed by the atmosphere. A forced convection type outdoor heat exchanger installed with a fan should be used for the purpose of use.The auxiliary heat exchanger installed in the forced convection type outdoor heat exchanger as described above has a heating medium (with brine) of a predetermined temperature (about 20 ° C.) heated in a heat-free storage tank for free use. When defrosting the frost attached to the outdoor heat exchanger by driving the fan while circulating), the heat of the heat source for the non-heat source is lost (discharged) due to the suction or pressure of the fan. Low and low utilization efficiency of the non-heat source for heat as described above, the improvement of the grade coefficient is also low Claim to being able dots.

본 발명은 상기한 문제점을 시정하여 무비용 열원과 열교환시킨 열매체를 실외 열교환기에 순환시킬 때 무비용 열원의 활용 효율을 높이고, 성적계수를 양호하게 향상할 수 있도록 한 공기 열원형 히트 펌프 시스템을 제공하는 것을 목적으로 한다.The present invention provides an air heat source type heat pump system that can improve the utilization efficiency of the non-heat source for circulating the heat medium heat-exchanged with the non-heat source for heat to the outdoor heat exchanger, and improve the coefficient of performance. It aims to do it.

상기한 목적을 달성하기 위하여, 본 발명은 압축기, 4 웨이 밸브, 실내 열교환기, 냉각용 팽창밸브, 가열용 팽창밸브, 실외 열교환기 및 상기 4 웨이 밸브를 냉매도관으로 순서대로 연결하고, 상기 4 웨이 밸브와 압축기를 냉매 흡입도관으로 연결한 기본 냉동 사이클과; 상기 실외 열교환기에 보조 열교환기를 설치하고, 무비용 열원 저장조에 열교환기를 설치하여서, 상기 보조 열교환기와 열교환기를 순환펌프 부설 열매체 공급관과 열매체 복귀관으로 폐회로가 형성되게 연결한 제상 및 냉각수단과; 상기 열매체 공급관 및 냉매도관의 실외 열교환기와 4 웨이 밸브 사이에 설치한 성능 향상수단;을 포함하여 구성한 것이다.In order to achieve the above object, the present invention is connected to the compressor, 4-way valve, indoor heat exchanger, cooling expansion valve, heating expansion valve, outdoor heat exchanger and the 4-way valve in order to the refrigerant conduit, A basic refrigeration cycle connecting the way valve and the compressor to the refrigerant suction conduit; A defrosting and cooling means for installing an auxiliary heat exchanger in the outdoor heat exchanger and installing a heat exchanger in a heat-free storage source for connecting the auxiliary heat exchanger and the heat exchanger so that a closed circuit is formed by a circulation pump-attached heat medium supply pipe and a heat medium return pipe; And a performance improving means installed between the outdoor heat exchanger and the 4-way valve of the heat medium supply pipe and the refrigerant conduit.

이상과 같이 본 발명은 실외 열교환기에 설치한 보조 열교환기에, 무비용 열원과 열교환기를 순환하는 열매체를 열교환시켜 가열 또는 냉각시킨 후 그 가열 또는 냉각된 열매체를 순환시킴과 아울러 팬을 구동하면서 가열 운전시에는 실외 열교환기에 서리의 부착을 방지하거나 부착된 서리를 제상하고, 냉각 운전시에는 실외 열교환기에서 냉매증기를 응축시킬 때 상기한 가열운전의 경우에는 상기 열교환기에서 가열된 열매체의 보유열을 성능 향상수단의 방열 열교환기에서 방출하여 온도를 저하 시킨 후 보조 열교환기를 순환시킴으로서 팬에 의하여 대기에 방출되는 열의 낭비를 방지함과 아울러 상기 방열 열교환기 방출열을 흡열겸 방열 열교환기에 공급함으로써 실외 열교환기에서 증발된 습포화증기를 건포화 또는 과열증기화 할 수 있기 때문에 압축기의 액백 또는 액격을 방지하여 압축기의 손상을 방지함과 아울러 성적계수를 향상할 수 있는 것이다.As described above, the present invention heats and heats an auxiliary heat exchanger installed in an outdoor heat exchanger by heating or cooling a heat source for circulating a heat source and a heat exchanger and circulating the heated or cooled heat medium and driving a fan. It prevents the adhesion of frost to the outdoor heat exchanger or defrosts the attached frost, and during the cooling operation to condense the refrigerant vapor in the outdoor heat exchanger, in the case of the above heating operation, the heat retention of the heat medium heated in the heat exchanger By circulating the auxiliary heat exchanger after releasing from the heat radiating heat exchanger of the enhancement means to circulate the auxiliary heat exchanger to prevent waste of heat discharged to the atmosphere by the fan and supplying the heat radiating heat of the heat radiating heat exchanger to the endothermic and heat radiating heat exchanger. Can evaporate or superheat steam Aekbaek to prevent liquid hammer or of the compressor to prevent damage to the compressor and also to addition to improving the coefficient of performance.

그리고 상기한 냉각운전의 경우에는 압축기에서 압축된 고온?고압의 냉매증기가 실외 열교환기에서 응축되기 전에 성능 향상수단의 흡열겸 방열 열교환기에서 1 차 응축된 후 실외 열교환기에서 재응축됨으로 냉매증기의 응축이 양호하기 때문에 이 또한 성적계수의 향상 요인이 되어 양호한 성능 향상을 할 수 있는 것이다.In the case of the above cooling operation, the refrigerant vapor of the high temperature and high pressure compressed by the compressor is first condensed in the endothermic and heat radiating heat exchanger of the performance improving means before condensing in the outdoor heat exchanger, and then recondensed in the outdoor heat exchanger. Because of the good condensation of, this also contributes to the improvement of the coefficient of performance, which can improve the good performance.

도 1 은 본 발명의 실시예의 구성도.1 is a block diagram of an embodiment of the present invention.

도 1 은 본 발명의 실시예의 구성도로서, 본 발명은 기본 냉동 사이클(10)과, 제상 및 냉각수단(20) 및 성능 향상수단(30)으로 대별된다.1 is a block diagram of an embodiment of the present invention, which is roughly divided into a basic refrigeration cycle 10, defrosting and cooling means 20, and performance improving means 30. As shown in FIG.

상기 기본 냉동 사이클(10)은 압축기(11), 4 웨이 밸브(12), 실내 열교환기(13), 냉각용 팽창밸브(14), 가열용 팽창밸브(15), 실외 열교환기(16) 및 상기 4 웨이 밸브(12)를 냉매도관(17)으로 순서대로 연결하고, 상기 4 웨이 밸브(12)와 압축기(11)를 냉매 흡입도관(18)으로 연결한 것으로서, 상기 기본형 냉동 사이클(10)은 공기 열원형을 기본으로 한다.The basic refrigeration cycle 10 includes a compressor 11, a 4-way valve 12, an indoor heat exchanger 13, a cooling expansion valve 14, a heating expansion valve 15, an outdoor heat exchanger 16 and The 4-way valve 12 is connected in sequence to the refrigerant conduit 17, and the 4-way valve 12 and the compressor 11 are connected to the refrigerant suction conduit 18, and the basic refrigeration cycle 10 Is based on the air heat source.

상기 제상 및 냉각수단(20)은 상기 실외 열교환기(16)의 전열관 사이사이에 보조 열교환기(22)의 전열관을 설치하거나, 실외 열교환기(16)의 측면에 보조 열교환기(22)를 핀(fin)을 일체형으로하여 일체로 형성하거나, 실외 열교환기(16)의 측면에 별개의 보조 열교환기(22)를 설치하고, 무비용 열원 저장조(23)에 열교환기(21)를 설치하여서, 상기 보조 열교환기(22)와 열교환기(21)를 순환펌프(25)를 부설한 열매체 공급관(24a)과 열매체 복귀관(24b)으로 폐회로가 형성되게 연결한 것이며, 상기 열교환기(21) 등에는 열매체(에틸렌 글리콜 등과 같이 결빙 온도가 낮은 물질)를 주입하는 것이다.The defrosting and cooling means 20 may install the heat exchanger tube of the auxiliary heat exchanger 22 between the heat exchanger tubes of the outdoor heat exchanger 16, or fin the auxiliary heat exchanger 22 on the side of the outdoor heat exchanger 16. fins are integrally formed and integrally formed, or a separate auxiliary heat exchanger 22 is provided on the side of the outdoor heat exchanger 16, and a heat exchanger 21 is provided in the heat source storage tank 23 for the non-heating. The auxiliary heat exchanger 22 and the heat exchanger 21 are connected to each other in such a way that a closed circuit is formed by the heat medium supply pipe 24a and the heat medium return pipe 24b provided with the circulation pump 25, and the heat exchanger 21 and the like. Is injecting a heat medium (a material having a low freezing temperature such as ethylene glycol).

상기 무비용 열원 저장조(23)에 공급되는 열원은 강물, 바닷물, 채수된 지하수, 태양열 집열장치로서 집열한 유체(공기 또는 온수), 우수, 폐수 등의 재생 에너지를 사용함으로써 환경파괴를 방지한 것이며, 상기 무비용 열원의 온도는 가열운전시 특히 혹한기에는 높을수록 좋고, 냉각 운전시에는 25℃를 넘지 않는 것이 좋다.The heat source supplied to the unheated heat source storage tank 23 is to prevent environmental destruction by using renewable energy such as river water, sea water, ground water collected, solar heat collecting device (air or hot water), rainwater, waste water, etc. The higher the temperature of the non-heating heat source is, the higher the temperature is particularly good in a cold operation, and the temperature is not to exceed 25 ° C in the cooling operation.

상기 성능 향상수단(30)은 상기 열매체 공급관(24a) 및 냉매도관(17)의 실외 열교환기(16)와 4 웨이 밸브(12) 사이에 설치하여서, 가열 운전시에는 열매체의 보유열에 의하여 압축기(11)에 흡입되는 습포화 증기를 가열하고, 냉각 운전시에는 압축기(11)에서 압축된 고온?고압의 냉매증기가 실외 열교환기(16)에 공급되기 전에 1 차 냉각하는 것이다.The performance improving means 30 is installed between the heat exchanger supply pipe 24a and the outdoor heat exchanger 16 of the refrigerant conduit 17 and the 4-way valve 12, and during the heating operation, the compressor ( The wet saturated vapor sucked in 11) is heated, and during the cooling operation, the high temperature and high pressure refrigerant vapor compressed by the compressor 11 is first cooled before being supplied to the outdoor heat exchanger 16.

상기 성능 향상수단(30)은 상기 열매체 공급관(24a)에 방열 열교환기(31)를 설치하고, 상기 냉매도관(17)의 4 웨이 밸브(12)와 실외 열교환기(16) 사이에 상기 방열 열교환기(31)와 열교환 관계를 유지하도록 흡열겸 방열 열교환기(32)를 설치한 것이다. The performance improving means (30) is provided with a heat dissipation heat exchanger (31) in the heat medium supply pipe (24a), and the heat dissipation heat exchanger between the 4-way valve (12) of the refrigerant conduit (17) and the outdoor heat exchanger (16). The heat absorption and heat dissipation heat exchanger 32 is provided so as to maintain a heat exchange relationship with the gas 31.

그리고 상기 열매체 공급관(24a)에 방열 열교환기(31)를 바이패스하는 바이패스 도관(27)을 연결하고, 상기 열매체 공급관(24a)과 바이패스 도관(27)의 입구측 연결부에 3 웨이 밸브(28)를 설치하여, 가열 운전시에는 열매체가 방열 열교환기(31)에 공급되도록 조작하고, 냉각 운전시에는 열매체가 바이패스 도관(27)으로 흐르게 조작함으로써 열매체의 가열을 방지함과 아울러 흡열겸 냉각 열교환기(32)에서 냉매증기의 응축을 양호하게 한 것이다.The bypass conduit 27 for bypassing the heat dissipation heat exchanger 31 is connected to the heat medium supply pipe 24a, and a 3-way valve is connected to the inlet side connection of the heat medium supply pipe 24a and the bypass conduit 27. 28), the heating medium is operated to be supplied to the heat dissipation heat exchanger 31 during the heating operation, and the heating medium is flowed into the bypass conduit 27 during the cooling operation to prevent heating of the heating medium, In the cooling heat exchanger 32, the condensation of the refrigerant vapor is improved.

미설명부호 41, 42 는 체크 밸브이다. 그리고 상기 실외 열교환기(16)에는 흡입형 또는 압입형 팬(미도시)을 설치하여 냉매액의 증발과 냉매증기의 응축을 양호하게 한 것으로서, 이는 공기 열원형 히트 펌프에서 주지된 것이다.Reference numerals 41 and 42 are check valves. In addition, the outdoor heat exchanger 16 is provided with a suction type or a pressurized fan (not shown) to improve the evaporation of the refrigerant liquid and the condensation of the refrigerant vapor, which is well known in an air heat source heat pump.

이상과 같은 본 발명은 가열운전시에는 냉매를 도 1 의 화살표 실선으로, 냉각 운전시에는 도 1 의 화살표 가상선으로 흐르도록 4 웨이 밸브(12)를 조작하여 실내 열교환기(13)는 가열 운전시에는 응축기로, 냉각 운전시는 증발기로 작용하게 하여 가열기능 및 냉각기능을 하는 것은 종래의 것과 동일하다.In the present invention as described above, the indoor heat exchanger 13 operates by heating the 4-way valve 12 so that the refrigerant flows in the solid line of the arrow in FIG. It functions as a condenser at the time of operation and an evaporator at the time of cooling operation, and functions as a heating function and a cooling function is the same as the conventional thing.

상기와 같이 가열운전 및 냉각운전을 할 때 외기온도가 노점온도 이하로 하강하거나 혹서기 등에 무비용 열원을 무비용 열원 저장조(23)에 순환시키면 열교환기(21) 내의 열매체와 열교환되어 그 열매체는 가열 운전시에는 외기온도보다 높고 냉각 운전시에는 외기온도보다 낮은 온도가 되며, 상기한 외기온도보다 높거나 낮은 열매체를 순환펌프(25)를 구동하여 보조 열교환기(22)에 순환시키면 가열 운전시에는 실외 열교환기(16)의 전열관 및 핀에 서리가 맺히는 것을 방지하거나 맺힌 서리를 제상하며, 냉각 운전시에는 실외 열교환기(16)의 전열관 및 핀을 냉각함으로써 냉매증기의 응축을 양호하게 함으로써 성적계수를 향상할 수 있고, 또한 상기와 같이 운전할 때 무비용 열원의 온도는 가열운전시의 혹한기에는 높을수록 좋고, 냉각운전시는 25℃ 넘지 않는 것이 좋다.When the outside air temperature falls below the dew point temperature during the heating operation and the cooling operation as described above, or when the non-thermal heat source is circulated to the non-heating heat source storage tank 23 in a cold weather or the like, it is heat-exchanged with the heat medium in the heat exchanger 21, and the heat medium is heated. In operation, the temperature is higher than the outside temperature, and in the cooling operation, the temperature is lower than the outside temperature. When the heating medium is circulated to the auxiliary heat exchanger 22 by driving the circulation pump 25, the heating medium is heated or lower. It prevents frost from forming on the heat exchanger tube and fin of the outdoor heat exchanger 16 or defrosts the formed frost. During cooling operation, the heat exchanger tube and fin of the outdoor heat exchanger 16 is cooled to improve the condensation of the refrigerant vapor. It is possible to improve the temperature, and the higher the temperature of the non-heating heat source when operating as described above, the better in cold weather during the heating operation, and the temperature exceeds 25 ° C during the cooling operation. That is recommended.

상기와 같이 열교환기(21)에서 열교환된 열매체를 보조 열교환기(22)에 순환시킬 때 가열운전시에는 3 웨이 밸브(28)를 열매체가 방열 열교환기(31) 측으로 흐르도록 조작하면 방열 열교환기(31)를 경유하는 열매체는 그 보유열을, 실외 열교환기(16)에서 증발된 후 흡열겸 방열 열교환기(32)를 경유하여 압축기(11)에 흡입되는 습포화 증기와 열교환되어 그 온도가 낮아진 후 실외 열교환기(16)에 설치된 보조 열교환기(22)에서 방열됨으로 팬을 구동하여도 열매체의 보유열이 대기중으로 손실되는 것을 저감함으로써 성적계수를 양호하게 향상할 수 있는 것이다. When the heat medium heat-exchanged in the heat exchanger 21 is circulated to the auxiliary heat exchanger 22, the 3-way valve 28 is operated so that the heat medium flows to the heat-dissipating heat exchanger 31 during the heating operation. The heat medium passing through (31) heats its retaining heat after being evaporated in the outdoor heat exchanger (16) and then heat exchanged with the wet vaporized steam sucked into the compressor (11) via the endothermic and heat radiating heat exchanger (32). After being lowered, heat is dissipated in the auxiliary heat exchanger 22 installed in the outdoor heat exchanger 16, thereby reducing the loss of heat of the heat medium into the air even when the fan is driven.

상기와 같이 실외 열교환기(16)에서 증발된 후 압축기(11)에 흡입되는 습포화 증기를 방열 열교환기(31)를 순환하는 열매체와 열교환하여 가열하여서 건 포화증기 또는 과열 증기화하면 압축기(11)에 액백 또는 액격이 발생 되는 것을 방지함으로써 압축기(11)의 신뢰성을 향상하고, 성적계수를 증진할 수 있는 것이다.As described above, when the wet saturated vapor vaporized in the outdoor heat exchanger 16 and sucked into the compressor 11 is heat-exchanged with a heat medium circulating through the heat radiating heat exchanger 31 to dry the saturated steam or superheated steam, the compressor 11 By preventing the liquid bag or liquid to be generated in the), it is possible to improve the reliability of the compressor (11) and improve the coefficient of performance.

그리고 상기와 같이 열교환기(21)에서 열교환된 열매체를 보조 열교환기(22)에 순환시킬 때의 냉각운전시에는 압축기(11)에서 압축된 고온?고압의 냉매증기가 실외 열교환기(16)에서 응축되기 전에 흡열겸 방열 열교환기(32)를 경유하면서 1 차 응축된 후 실외 열교환기(16)에서 재응축됨으로 냉매증기의 응축이 양호함으로써 이 또한 성적계수의 향상요인이 되는 것이다. 이 때 3 웨이 밸브(28)는 열매체가 바이패스 도관(27)측으로 흐르도록 조작하여 흡열겸 방열 열교환기(32)의 방출열에 의하여 열매체가 가열되는 것을 방지함으로써 보조 열교환기(22)에 일정 온도 이하의 열매체만 순환되게하여 냉매증기의 응축을 양호하게 한 것이다.As described above, during the cooling operation when the heat medium heat-exchanged in the heat exchanger 21 is circulated to the auxiliary heat exchanger 22, the high-temperature / high-pressure refrigerant vapor compressed by the compressor 11 is transferred to the outdoor heat exchanger 16. The first condensation is passed through the endothermic and heat dissipating heat exchanger 32 before condensation and then recondensed in the outdoor heat exchanger 16, thereby improving the condensation of the refrigerant vapor. At this time, the three-way valve 28 is operated so that the heat medium flows to the bypass conduit 27 side, thereby preventing the heat medium from being heated by the heat of release of the endothermic and heat dissipating heat exchanger 32, thereby maintaining a constant temperature in the auxiliary heat exchanger 22. Only the following heat medium is circulated to improve the condensation of the refrigerant vapor.

10 : 기본 냉동 사이클, 20 : 제상 및 냉각 수단, 21 : 열교환기,
22 : 보조 열교환기, 23 : 무비용 열원 저장조, 30 : 성능 향상수단 10: basic refrigeration cycle, 20 defrost and cooling means, 21 heat exchanger,
22: auxiliary heat exchanger, 23: heat source storage tank for movie, 30: means for improving performance

Claims (3)

압축기, 4 웨이 밸브, 실내 열교환기, 냉각용 팽창밸브, 가열용 팽창밸브, 실외 열교환기 및 상기 4 웨이 밸브를 냉매도관으로 순서대로 연결하고, 상기 4 웨이 밸브와 압축기를 냉매 흡입도관으로 연결한 기본 냉동 사이클과; 상기 실외 열교환기에 보조 열교환기를 설치하고, 무비용 열원 저장조에 열교환기를 설치하여서, 상기 보조 열교환기와 열교환기를 순환펌프 부설 열매체 공급관과 열매체 복귀관으로 폐회로가 형성되게 연결한 제상 및 냉각수단과; 상기 열매체 공급관 및 냉매도관의 실외 열교환기와 4 웨이 밸브 사이에 설치한 성능 향상수단;을 포함하여 구성한 히트 펌프 시스템.A compressor, a 4-way valve, an indoor heat exchanger, a cooling expansion valve, a heating expansion valve, an outdoor heat exchanger, and the 4-way valve are sequentially connected to the refrigerant conduit, and the 4-way valve and the compressor are connected to the refrigerant suction conduit. A basic refrigeration cycle; A defrosting and cooling means for installing an auxiliary heat exchanger in the outdoor heat exchanger and installing a heat exchanger in a heat-free storage source for connecting the auxiliary heat exchanger and the heat exchanger so that a closed circuit is formed by a circulation pump-attached heat medium supply pipe and a heat medium return pipe; And a performance improving means installed between the outdoor heat exchanger and the 4-way valve of the heat medium supply pipe and the refrigerant conduit. 제 1 항에 있어서, 성능 향상수단은 열매체 공급관에 방열 열교환기를 설치하고, 냉매도관의 실외 열교환기와 4 웨이 밸브 사이에 흡열겸 방열 열교환기를 상기 방열 열교환기와 열교환 관계를 유지할 수 있도록 설치한 히트 펌프 시스템.The heat pump system according to claim 1, wherein the performance improving means includes a heat dissipation heat exchanger in the heat medium supply pipe, and an endothermic and heat dissipation heat exchanger between the outdoor heat exchanger and the 4-way valve of the refrigerant conduit so as to maintain a heat exchange relationship with the heat dissipation heat exchanger. . 제 2 항에 있어서, 열매체 공급관에 방열 열교환기를 바이패스하는 바이패스 도관을 연결하고, 상기 열매체 공급관과 바이패스 도관의 입구측 연결부에 3 웨이 밸브를 설치한 히트 펌프 시스템.
3. The heat pump system according to claim 2, wherein a bypass conduit for bypassing the heat dissipation heat exchanger is connected to the heat medium supply pipe, and a 3-way valve is provided at an inlet side connection portion of the heat medium supply pipe and the bypass conduit.
KR1020120048017A 2012-05-07 2012-05-07 Heat pump system KR101258182B1 (en)

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