KR101016717B1 - Triple effect heat pump system - Google Patents

Triple effect heat pump system Download PDF

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Publication number
KR101016717B1
KR101016717B1 KR1020100136658A KR20100136658A KR101016717B1 KR 101016717 B1 KR101016717 B1 KR 101016717B1 KR 1020100136658 A KR1020100136658 A KR 1020100136658A KR 20100136658 A KR20100136658 A KR 20100136658A KR 101016717 B1 KR101016717 B1 KR 101016717B1
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South Korea
Prior art keywords
heat exchanger
hot water
heating
pump system
heat
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KR1020100136658A
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Korean (ko)
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임동만
이희두
김주호
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공항시설관리 주식회사
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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
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/002—Compression machines, plants or systems with reversible cycle not otherwise provided for geothermal
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

PURPOSE: A triple-utility heat pump system is provided to maintain the safety of a system even in case of cooling/heating or hot water dedicated operation. CONSTITUTION: A triple-utility heat pump system comprises a cold/hot water heat exchanger(21), a hot water heat exchanger(23), a geothermal heat exchanger(25), 4-way valves(31,32), a cooling device(33), and an auxiliary fan coil unit(35). The triple-utility heat pump system circulates thermal medium by a compressor(17) for cooling-and-heating and hot water supply. The cold/hot water heat exchanger, the hot water heat exchanger, and the geothermal heat exchanger constitute a thermal medium circulating line. The 4-way valve is serially connected to the lower part of a compressor and controls a flow path of the hot water heat exchanger. The cooling device is installed on coolant pipes(41,42,43,44,45) between the geothermal heat exchanger and the cold/hot water heat exchanger to supplement terrestrial heat shortage.

Description

3중 효용의 히트펌프 시스템{Triple effect heat pump system}Triple effect heat pump system {Triple effect heat pump system}

본 발명은 3중 효용의 히트펌프 시스템에 관한 것으로서, 보다 구체적으로는 냉난방과 급탕의 동시운전은 물론 일측의 전용운전을 수행하여도 시스템의 안정성을 유지할 수 있는 3중 효용의 히트펌프 시스템에 관한 것이다.The present invention relates to a triple-use heat pump system, and more particularly, to a triple-use heat pump system capable of maintaining the stability of the system even when simultaneous operation of heating and heating and hot water supply, as well as dedicated operation of one side. will be.

통상적으로 히트펌프를 기반으로 하는 냉난방 시스템은 15ㅁ 3℃의 지중열을 열원으로 하는 지열원 히트펌프 시스템, 대기중의 공기를 열원으로 하는 공기열원 히트펌프 시스템, 목욕탕 배수열 등을 열원으로 하는 폐열원 히트펌프 시스템으로 대별된다. 어느 시스템에 있어서나 냉난방 및 급탕 부하에 안정적으로 대응하면서 에너지 이용 효율의 극대화를 유지하는 기술을 요체로 한다. 이와 관련되는 선행특허로 한국 등록특허공보 제0540362호의 "히트펌프를 구비한 냉난방 급탕시스템", 한국 등록특허공보 제0989099호의 "급탕기능을 갖는 주택용 지열히트펌프" 등이 알려져 있다.In general, a heating / heating system based on a heat pump is a geothermal heat heat pump system using ground heat of 15 ㅁ 3 ° C. as a heat source, an air heat source heat pump system using air in the air as a heat source, and a heat source of a bathroom drainage heat. It is roughly classified as a waste heat source heat pump system. In any system, a technique for stably responding to heating and cooling and hot water loads while maintaining maximum energy utilization efficiency is essential. Prior art related to this is a "heating and heating hot water supply system with a heat pump" of Korean Patent Publication No. 0540362, "geothermal heat pump for a house having a hot water supply function" of Korean Patent Publication No. 0989099.

한국 등록특허공보 제0540362호는 압축기(11), 응축기(12), 팽창밸브(13) 및 증발기(14)가 순차적으로 연결되어 냉동사이클을 이루고 있는 냉동기(1); 압축기(21), 과열열교환기(22), 사방제어밸브(23), 주열교환기(24), 양방향팽창밸브(25), 보조열교환기(26)가 순차적으로 연결되어 냉난방사이클을 이루고 있는 히트펌프(2); 상기 냉동기(1)의 응축기(12) 및 상기 히트펌프(2)의 과열열교환기(22)와의 열교환으로 얻어진 고온의 온수를 저장 및 공급하기 위한 급탕공급수단(3); 및 상기 히트펌프(2)의 주열교환기(24)와의 열교환으로 얻어진 저온 또는 고온의 열매체를 냉난방에 사용하기 위하여 저장 및 순환시키기 위한 열매체순환수단(4);을 포함하는 구성을 개시한다.Korean Patent Publication No. 0540362 includes a refrigerator 1 in which a compressor 11, a condenser 12, an expansion valve 13, and an evaporator 14 are sequentially connected to form a refrigeration cycle; A heat pump in which a compressor 21, a superheat heat exchanger 22, a four-way control valve 23, a main heat exchanger 24, a bidirectional expansion valve 25, and an auxiliary heat exchanger 26 are sequentially connected to form a cooling / heating cycle. (2); Hot water supply means (3) for storing and supplying hot water of high temperature obtained by heat exchange with the condenser (12) of the refrigerator (1) and the superheat heat exchanger (22) of the heat pump (2); And heat medium circulation means (4) for storing and circulating the low or high temperature heat medium obtained by heat exchange with the main heat exchanger (24) of the heat pump (2) for use in cooling and heating.

한국 등록특허공보 제0989099호는 지중열교환유닛; 상기 지중열교환유닛과 연결되고, 상기 지중열교환유닛과의 열교환을 통하여 냉난방을 가능하게 하는 히트펌프유닛; 및 상기 히트펌프유닛과 연결되고, 상기 히트펌프유닛에 의한 과열원이 공급되는 급탕탱크;를 포함하여 이루어지며 상기 지중열교환유닛은 냉매 순환을 위한 유입관과 유출관을 갖고, 상기 유입관과 유출관이 상호 연결되어 지중에 매설(埋設)된 열교환 파이프; 및 상기 유입관과 유출관을 상호 비(非)접촉 이격시키는 몸체와, 상기 몸체에 형성된 복수의 절개부와, 상기 절개부에 각각 삽입되고, 상기 유입관과 유출관을 상기 몸체에 고정시키기 위한 밴딩수단을 포함하는 간격유지부재;를 포함하는 구성을 개시한다.Korean Patent Publication No. 0989099 discloses an underground heat exchange unit; A heat pump unit connected to the underground heat exchange unit and capable of cooling and heating through heat exchange with the underground heat exchange unit; And a hot water supply tank connected to the heat pump unit and supplied with an overheating source by the heat pump unit, wherein the underground heat exchange unit has an inlet pipe and an outlet pipe for refrigerant circulation, and the inlet pipe and the outlet pipe. Heat exchange pipes in which the pipes are interconnected and embedded in the ground; And a body for non-contact spaced apart from each other by the inlet pipe and the outlet pipe, a plurality of cutouts formed in the body and the cutouts, respectively, for fixing the inlet pipe and the outlet pipe to the body. Disclosed is a configuration including a gap holding member including a bending means.

상기한 선행특허들에 의하면 냉난방과 급탕을 수행함에 히트펌프 시스템의 안정을 도모하는 것이지만 냉난방과 급탕 간의 부하변동이 심한 경우 시스템의 안정성을 유지하기 미흡한 단점을 지니고 있다.According to the foregoing patents, the heat pump system is stabilized while performing heating and heating, but has a disadvantage in that the stability of the system is insufficient when the load fluctuation between heating and heating is severe.

상기와 같은 종래의 문제점들을 개선하기 위한 본 발명의 목적은, 냉난방과 급탕의 동시운전은 물론 일측의 전용운전을 수행하여도 시스템의 안정성을 유지할 수 있는 3중 효용의 히트펌프 시스템을 제공하는 데 있다.An object of the present invention for improving the conventional problems as described above, to provide a triple-use heat pump system that can maintain the stability of the system even if the simultaneous operation of heating and heating and hot water supply as well as the dedicated operation of one side. have.

상기 목적을 달성하기 위하여, 본 발명은 냉온수열교환기, 급탕열교환기, 지열열교환기로 열매체 순환경로를 구성하고, 압축기에 의한 열매체의 순환으로 냉난방과 급탕을 수행하는 히트펌프 시스템에 있어서: 상기 압축기의 하류에 직렬로 연결 설치되어 급탕열교환기의 유로를 단속하는 4방향밸브; 상기 냉온수열교환기와 지열열교환기 사이의 냉매관 상에 설치되어 지중열 부족을 보완하는 냉각기; 및 상기 지중열교환기와 지열열교환기의 사이의 수관 상에 설치되어 보조적인 냉방 또는 난방을 제공하는 보조팬코일유니트;를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention constitutes a heat medium circulation path by using a cold / hot water heat exchanger, a hot water heat exchanger, a geothermal heat exchanger, and in the heat pump system for cooling and heating and hot water by circulation of the heat medium by the compressor: A four-way valve installed downstream in series to control the flow path of the hot water heat exchanger; A cooler installed on a refrigerant pipe between the cold / hot water heat exchanger and the geothermal heat exchanger to compensate for the lack of underground heat; And an auxiliary fan coil unit installed on the water pipe between the underground heat exchanger and the geothermal heat exchanger to provide auxiliary cooling or heating.

또, 본 발명에 따르면 상기 4방향밸브는 냉난방 운전모드시 급탕열교환기의 부하를 20% 이내로 유지하고, 급탕전용 또는 난방전용 운전모드시 급탕열교환기의 부하를 각각 100% 또는 0%로 유지하는 것을 특징으로 한다.According to the present invention, the four-way valve maintains the load of the hot water supply heat exchanger within 20% in the heating and cooling operation mode, and maintains the load of the hot water supply heat exchanger at 100% or 0%, respectively, in the operation mode for the hot water supply or the heating only operation. It is characterized by.

이때, 상기 급탕열교환기의 설정된 부하 유지를 위하여 온수탱크의 수관 상에 인버터펌프를 사용하는 것을 특징으로 한다.At this time, the inverter pump is used on the water pipe of the hot water tank to maintain the set load of the hot water supply heat exchanger.

또, 본 발명에 따르면 상기 냉각기는 다수의 체크밸브를 개재하여 설치되어, 냉방 운전모드시 지열열교환기의 하류측으로 연결되고, 난방 운전모드시 지열열교환기의 상류측으로 연결되는 것을 특징으로 한다.According to the present invention, the cooler is installed via a plurality of check valves, and is connected to the downstream side of the geothermal heat exchanger in the cooling operation mode, and is connected to the upstream side of the geothermal heat exchanger in the heating operation mode.

또, 본 발명에 따르면 상기 수관 상에 냉각기를 우회하여 보조팬코일유니트와 지열열교환기를 거치는 유로를 형성하도록 바이패스관과 함께 3방향밸브를 구비하는 것을 특징으로 한다.In addition, according to the present invention is characterized in that it comprises a three-way valve with a bypass pipe to bypass the cooler on the water pipe to form a flow path through the auxiliary fan coil unit and the geothermal heat exchanger.

이상과 같이 본 발명에 따른 3중 효용의 히트펌프 시스템에 의하면, 냉난방과 급탕의 동시운전은 물론 일측의 전용운전을 수행하여도 시스템의 안정성을 유지할 수 있는 효과가 있다.As described above, according to the triple-use heat pump system according to the present invention, there is an effect that can maintain the stability of the system even when the simultaneous operation of heating and heating and hot water supply, as well as the dedicated operation of one side.

도 1은 본 발명에 따른 히트펌프 시스템의 냉방우선 운전시 열매체 순환을 나타내는 모식도
도 2는 본 발명에 따른 히트펌프 시스템의 난방우선 운전시 열매체 순환을 나타내는 모식도
도 3은 본 발명에 따른 히트펌프 시스템의 난방전용 운전시 열매체 순환을 나타내는 모식도1 is a schematic diagram showing the heat medium circulation during the cooling priority operation of the heat pump system according to the present invention.
2 is a schematic diagram showing the heat medium circulation during the heating priority operation of the heat pump system according to the present invention.
3 is a schematic diagram showing the heat medium circulation during the heating-only operation of the heat pump 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.

본 발명은 냉온수열교환기(21), 급탕열교환기(23), 지열열교환기(25)로 열매체 순환경로를 구성하고, 압축기(17)에 의한 열매체의 순환으로 냉난방과 급탕을 수행하는 히트펌프 시스템에 관련된다. 냉온수열교환기(21)는 팬코일유니트(11)에 연결되어 냉방 또는 난방을 수행하고, 급탕열교환기(23)는 온수탱크(13)에 연결되어 급탕을 제공하고, 지열열교환기(25)는 지중열교환기(15)에 연결되어 방열 또는 흡열을 수행한다. 압축기(17)는 냉온수열교환기(21), 급탕열교환기(23), 지열열교환기(25), 수액기(18), 액분리기(28), 펌프, 기타 밸브류 등과 함께 열매체(냉매)의 순환경로를 구성하여 냉방 또는 난방 사이클을 수행한다.The present invention constitutes a heat medium circulation path with a cold / hot water heat exchanger (21), a hot water heat exchanger (23), and a geothermal heat exchanger (25), and heat pump system for performing heating and cooling with hot water circulation by the circulation of the heat medium by the compressor (17). Is related. The cold and hot water heat exchanger 21 is connected to the fan coil unit 11 to perform cooling or heating, and the hot water heat exchanger 23 is connected to the hot water tank 13 to provide hot water supply, and the geothermal heat exchanger 25 is It is connected to the underground heat exchanger 15 to perform heat dissipation or heat absorption. Compressor 17, together with the cold and hot water heat exchanger (21), hot water heat exchanger (23), geothermal heat exchanger (25), receiver (18), liquid separator (28), pump, other valves, etc. A circulation path is constructed to perform cooling or heating cycles.

본 발명에 따르면 급탕열교환기(23)의 유로를 단속하는 4방향밸브(31)(32)가 상기 압축기(17)의 하류에 직렬로 연결 설치된다. 전방4방향밸브(31)는 압축기(17), 급탕열교환기(23)의 입력단, 급탕열교환기(23)의 출력단, 후방4방향밸브(32)에 연결되고, 후방4방향밸브(32)는 전방4방향밸브(31), 냉온수열교환기(21), 지열열교환기(25), 압축기(17)에 연결된다.According to the present invention, four-way valves 31 and 32 for controlling the flow path of the hot water supply heat exchanger 23 are connected in series downstream of the compressor 17. The front four-way valve 31 is connected to the compressor 17, the input of the hot water heat exchanger 23, the output of the hot water heat exchanger 23, the rear four-way valve 32, the rear four-way valve 32 is It is connected to the front four-way valve 31, hot and cold water heat exchanger 21, geothermal heat exchanger 25, compressor 17.

이때, 상기 4방향밸브(31)(32)는 냉난방 운전모드시 급탕열교환기(23)의 부하를 20% 이내로 유지하고, 급탕전용 또는 난방전용 운전모드시 급탕열교환기(23)의 부하를 각각 100% 또는 0%로 유지한다. 도 1 및 도 2처럼 냉방 또는 난방 운전모드시에 전방4방향밸브(31)를 통한 급탕열교환기(23)의 유로가 항시 개방되지만 그 부하는 15~20% 이내로 유지하는 것이 좋다. 반면 도 3처럼 난방전용 운전모드시 전방4방향밸브(31)의 포지션을 변동하여 급탕열교환기(23)의 유로를 폐쇄 상태로 유지한다. 후방4방향밸브(32)는 팬코일유니트(11)의 냉방 또는 난방 운전모드에 따라 포지션을 변동한다.At this time, the four-way valve (31) 32 maintains the load of the hot water supply heat exchanger (23) within 20% in the heating and cooling operation mode, respectively, and the load of the hot water supply heat exchanger (23) in the hot water only or heating only operation mode, respectively. Keep at 100% or 0%. 1 and 2 in the cooling or heating operation mode, the flow path of the hot water supply heat exchanger 23 through the front four-way valve 31 is always open, but the load is preferably maintained within 15 to 20%. On the other hand, as shown in FIG. 3, in the heating only operation mode, the position of the front four-way valve 31 is changed to maintain the flow path of the hot water supply heat exchanger 23 in a closed state. The rear four-way valve 32 changes the position according to the cooling or heating operation mode of the fan coil unit 11.

한편, 상기 급탕열교환기(23)의 설정된 부하 유지를 위하여 온수탱크(13)의 수관 상에 인버터펌프(24)를 사용한다. 인버터펌프(24)를 사용하면 주파수 제어로 급탕열교환기(23)에서의 열교환량을 정밀하게 조절할 수 있다. 수관은 열매체가 아닌 물을 순환하는 배관을 의미한다.On the other hand, the inverter pump 24 is used on the water pipe of the hot water tank 13 to maintain the set load of the hot water supply heat exchanger (23). When the inverter pump 24 is used, the amount of heat exchange in the hot water heat exchanger 23 can be precisely controlled by frequency control. A water pipe is a pipe that circulates water, not a heat medium.

물론 팬코일유니트(11)의 수관과 지중열교환기(15)의 수관에도 각각 인버터펌프(22)(66)를 사용하는 것이 좋으나 반드시 이에 국한되지 않는다.Of course, it is preferable to use the inverter pumps 22 and 66 for the water pipe of the fan coil unit 11 and the water pipe of the underground heat exchanger 15, but the present invention is not necessarily limited thereto.

또, 본 발명에 따르면 지중열 부족을 보완하는 냉각기(33)가 상기 냉온수열교환기(21)와 지열열교환기(25) 사이의 냉매관(41~46) 상에 설치된다. 종래의 경우 부하측의 예열을 위한 별도의 냉각기를 두는 경우가 있으나 시스템 가동 초기에만 사용할 뿐 그 실효성이 크지 않았다. 그 이유는 이용할 수 있는 열이 45℃ㅁ 5℃로 적고, 시스템 과냉이 빈번하게 발생하여 연속 사용에 제약이 따르기 때문이다. 본 발명의 경우 냉각기(33)의 미열을 지열원의 열보충 또는 예열의 용도로 활용하여 냉온수열교환기(21)를 통한 냉방 또는 난방 전용운전 및 급탕열교환기(23)를 통한 급탕 전용운전에 무리가 따르지 않는다.In addition, according to the present invention, a cooler 33 that compensates for the lack of underground heat is installed on the refrigerant pipes 41 to 46 between the cold / hot water heat exchanger 21 and the geothermal heat exchanger 25. In the conventional case, a separate cooler may be provided for preheating of the load side, but it is used only at the beginning of system operation, and its effectiveness is not great. The reason for this is that the available heat is less than 45 ° C. to 5 ° C., and system subcooling occurs frequently, which constrains continuous use. In the case of the present invention, by utilizing the heat of the cooler 33 for the purpose of heat supplement or preheating of the geothermal source, it is impossible to use only for cooling or heating through the hot and cold water heat exchanger 21 and the hot water exclusive operation through the hot water supply heat exchanger 23. Does not follow.

이때, 상기 냉각기(33)는 다수의 체크밸브(51~54)를 개재하여 설치되어, 냉방 운전모드시 지열열교환기(25)의 하류측으로 연결되고, 난방 운전모드시 지열열교환기(25)의 상류측으로 연결된다. 후방4방향밸브(32)에서 지열열교환기(25)에 이르는 경로에 부호 41의 냉매관을, 지열열교환기(25)에서 부호 54의 체크밸브를 거쳐 냉각기(33)에 이르는 경로에 부호 42의 냉매관을, 냉각기(33)에서 부호 51과 52의 체크밸브를 거쳐 부호 42에 연결되는 경로에 부호 43의 냉매관을, 부호 43의 냉매관에서 팽창변(27)과 부호 52의 체크밸브 사이에서 분기되어 부호 53의 체크밸브를 거쳐 지열열교환기(25)에 이르는 경로에 부호 44의 냉매관을, 부호 51과 52의 체크밸브 사이에서 분기되어 냉온수열교환기(21)에 이르는 경로에 부호 45의 냉매관을 연결한다. 이와 같은 구성으로 냉매관(41~46) 상에 다수의 체크밸브(51~54)를 개재하여 냉각기(33)를 설치하면 후술하는 작동 설명과 같이 냉방우선 운전모드, 난방우선 운전모드, 전용 운전모드를 안정적으로 구현할 수 있다.At this time, the cooler 33 is installed via a plurality of check valves (51 to 54), connected to the downstream side of the geothermal heat exchanger 25 in the cooling operation mode, the geothermal heat exchanger (25) of the heating operation mode It is connected upstream. Refrigerant tube of 41 in the path from the rear four-way valve 32 to the geothermal heat exchanger 25, and 42 in the path from the geothermal heat exchanger 25 to the cooler 33 through the check valve 54 The refrigerant pipe is connected to the path 42 connected to the reference 42 via the check valves 51 and 52 in the cooler 33, and between the expansion valve 27 and the check valve 52 in the refrigerant pipe 43 A refrigerant pipe (44) is branched into the path leading to the geothermal heat exchanger (25) via the check valve (53) and branched between the check valves (51) and (52) to the cold / hot water heat exchanger (21). Connect the refrigerant line. If the cooler 33 is installed on the refrigerant pipes 41 to 46 via the plurality of check valves 51 to 54, the cooling priority operation mode, the heating priority operation mode, and the exclusive operation are performed as described later. The mode can be implemented stably.

또, 본 발명에 따르면 보조적인 냉방 또는 난방을 제공하는 보조팬코일유니트(35)가 상기 지중열교환기(15)와 지열열교환기(25)의 사이의 수관(61~63) 상에 설치된다. 지중열교환기(15)에서 냉각기(33)에 이르는 경로에 부호 61의 수관을, 냉각기(33)에서 보조팬코일유니트(35)에 이르는 경로에 부호 62의 수관을, 보조팬코일유니트(35)에서 지중열교환기(15)에 이르는 경로에 부호 63의 수관을 연결한다. 그리고 보조팬코일유니트(35)를 팬코일유니트(11)와 이격된 장소에 별치하면 팬코일유니트(11)의 냉방시 보조팬코일유니트(35)의 난방을 구현하고 팬코일유니트(11)의 난방시 보조팬코일유니트(35)의 냉방을 구현할 수 있다.In addition, according to the present invention, an auxiliary fan coil unit 35 providing auxiliary cooling or heating is installed on the water pipes 61 to 63 between the underground heat exchanger 15 and the geothermal heat exchanger 25. A water pipe with a reference numeral 61 in the path from the underground heat exchanger 15 to the cooler 33, and a water pipe with a sign 62 in the path from the cooler 33 to the auxiliary fan coil unit 35, and the auxiliary fan coil unit 35. Connect the water pipe of 63 to the path from the underground heat exchanger (15). When the auxiliary fan coil unit 35 is separated from the fan coil unit 11 and separated from the fan coil unit 11, the auxiliary fan coil unit 35 is heated while cooling the fan coil unit 11, and the fan coil unit 11 is heated. Cooling of the auxiliary fan coil unit 35 at the time of heating can be implemented.

이때, 상기 수관(61~63) 상에 냉각기(33)를 우회하여 보조팬코일유니트(35)와 지열열교환기(25)를 거치는 유로를 형성하도록 바이패스관(71)(72)과 함께 3방향밸브(73)(74)를 구비한다. 우선 부호 61의 수관 상에 전자제어 방식의 3방향밸브(73)(74)를 직렬로 설치하고, 보조팬코일유니트(35)에서 전방3방향밸브(73)에 이르는 경로에 인버터펌프(76)와 함께 부호 71의 바이패스관을 연결하며, 부호 62의 수관에서 후방3방향밸브(74)에 이르는 경로에 부호 72의 바이패스관을 연결한다. 이와 같은 구성에 의하면 냉방, 난방, 급탕의 동시운전이나 전용운전시 지열원의 열밸런스를 유지하므로 열부족에 기인하여 시스템의 가동이 중단되는 현상을 방지할 수 있다.At this time, by bypassing the cooler 33 on the water pipes 61 to 63 together with the bypass pipes 71 and 72 to form a flow path through the auxiliary fan coil unit 35 and the geothermal heat exchanger 25. Directional valves 73 and 74 are provided. First, an electronically controlled three-way valve (73) (74) is installed in series on the water pipe (61), and the inverter pump (76) is routed from the auxiliary fan coil unit (35) to the front three-way valve (73). In addition, the bypass tube of 71 is connected, and the bypass tube of 72 is connected to the path from the water pipe of 62 to the rear three-way valve 74. According to such a structure, the thermal balance of the geothermal source is maintained during the simultaneous operation or the exclusive operation of cooling, heating, and hot water supply, thereby preventing the system from being stopped due to heat shortage.

도 1에 의한 냉방우선 작동에 있어서, 압축기(17)에서 송출되는 열매체는 전방4방향밸브(31)를 거쳐 급탕열교환기(23)에서 일부 방열하고, 후방4방향밸브(32)를 거쳐 지열열교환기(25)에서 방열하고, 부호 54의 체크밸브를 거쳐 냉각기(33)에서 방열하고, 팽창변(27)을 거쳐 저온저압의 상태로 되며, 냉온수열교환기(21)에서 흡열한 후에 압축기(17)로 복귀한다.In the cooling priority operation according to FIG. 1, the heat medium sent out from the compressor 17 partially radiates heat from the hot water supply heat exchanger 23 via the front four-way valve 31, and geothermal heat exchange through the rear four-way valve 32. The heat radiation from the air conditioner 25, the heat radiation from the cooler 33 via the check valve 54, the low temperature low pressure via the expansion valve 27, the heat absorbing in the cold and hot water heat exchanger 21, the compressor 17 Return to.

도 2에 의한 난방우선 작동에 있어서, 압축기(17)에서 송출되는 열매체는 전방4방향밸브(31)를 거쳐 급탕열교환기(23)에서 일부 방열하고, 후방4방향밸브(32)를 거쳐 냉온수열교환기(21)에 방열하고, 부호 51의 체크밸브를 거쳐 냉각기(33)에서 방열하고, 팽창변(27)을 거쳐 저온조압의 상태로 되며, 부호 53의 체크밸브를 거쳐 지열열교환기(25)에서 흡열한 후에 후방4방향밸브(32)를 거쳐 압축기(17)로 복귀한다.In the heating priority operation according to FIG. 2, the heat medium sent out from the compressor 17 partially radiates heat from the hot water supply heat exchanger 23 via the front four-way valve 31, and exchanges cold and hot water through the rear four-way valve 32. Radiates to the cooler 33 via a check valve of 51 and passes through the expansion valve 27 to a low temperature regulation state, and then to the geothermal heat exchanger 25 via a check valve of 53. After the endotherm, the gas is returned to the compressor 17 via the rear four-way valve 32.

도 3에 의한 온수전용 작동에 있어서, 전방4방향밸브(31)의 포지션 변환에 의하여 압축기(17)에서 송출되는 열매체가 급탕열교환기(23)를 거치지 않고 바로 냉온수열교환기(21)에 이르러 방열하고 이후 전술한 도 2의 유로를 거쳐 다시 압축기(17)로 복귀한다.In operation exclusively for hot water according to FIG. 3, the heat medium sent from the compressor 17 by the position change of the front four-way valve 31 immediately reaches the cold / hot water heat exchanger 21 without passing through the hot water heat exchanger 23. After that, the flow returns to the compressor 17 again through the above-described flow path of FIG. 2.

어느 경우에 있어서나, 수관(61~63)과 바이패스관(71)(72) 상의 3방향밸브(73)(74)에 의하여 냉각기(33)의 열교환량을 변화함으로써 지중열교환기(15)에 의한 열밸런스를 유지하는 것은 물론 보조팬코일유니트(35)에서 보조적 냉난방 기능을 활용할 수 있다.In either case, the underground heat exchanger 15 is changed by varying the heat exchange amount of the cooler 33 by the three-way valves 73 and 74 on the water pipes 61 to 63 and the bypass pipes 71 and 72. In addition to maintaining the thermal balance by the auxiliary fan coil unit 35 can utilize the auxiliary cooling and heating function.

본 발명은 기재된 실시예에 한정되는 것은 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

11: 팬코일유니트 13: 온수탱크
15: 지중열교환기 17: 압축기
21: 냉온수열교환기 22, 24: 인버터펌프
23: 급탕열교환기 25: 지열열교환기
27: 팽창변 31, 32: 4방향밸브
33: 냉각기 35: 보조팬코일유니트
41~46: 냉매관 51~54: 체크밸브
61~63: 수관 66, 76: 인버터펌프
71, 72: 바이패스관 73, 74: 3방향밸브11: fan coil unit 13: hot water tank
15: underground heat exchanger 17: compressor
21: hot and cold water heat exchanger 22, 24: inverter pump
23: hot water heat exchanger 25: geothermal heat exchanger
27: expansion valve 31, 32: 4-way valve
33: Cooler 35: Auxiliary Fan Coil Unit
41 ~ 46: refrigerant pipe 51 ~ 54: check valve
61 ~ 63: Water pipe 66, 76: Inverter pump
71, 72: bypass pipe 73, 74: 3-way valve

Claims (5)

냉온수열교환기(21), 급탕열교환기(23), 지열열교환기(25)로 열매체 순환경로를 구성하고, 압축기(17)에 의한 열매체의 순환으로 냉난방과 급탕을 수행하는 히트펌프 시스템에 있어서:
상기 압축기(17)의 하류에 직렬로 연결 설치되어 급탕열교환기(23)의 유로를 단속하는 4방향밸브(31)(32);
상기 냉온수열교환기(21)와 지열열교환기(25) 사이의 냉매관(41~46) 상에 설치되어 지중열 부족을 보완하는 냉각기(33); 및
상기 지중열교환기(15)와 지열열교환기(25)의 사이의 수관(61~63) 상에 설치되어 보조적인 냉방 또는 난방을 제공하는 보조팬코일유니트(35);를 포함하여 이루어지는 것을 특징으로 하는 3중 효용의 히트펌프 시스템.In a heat pump system in which a heat medium circulation path is constituted by a cold / hot water heat exchanger (21), a hot water heat exchanger (23), and a geothermal heat exchanger (25), and the heating and cooling and hot water supply are performed by the circulation of the heat medium by the compressor (17):
Four-way valves 31 and 32 installed in series downstream of the compressor 17 to control the flow path of the hot water heat exchanger 23;
A cooler 33 installed on the refrigerant pipes 41 to 46 between the cold / hot water heat exchanger 21 and the geothermal heat exchanger 25 to compensate for the lack of underground heat; And
And an auxiliary fan coil unit 35 installed on the water pipes 61 to 63 between the underground heat exchanger 15 and the geothermal heat exchanger 25 to provide auxiliary cooling or heating. Triple-use heat pump system. 제1항에 있어서,
상기 4방향밸브(31)(32)는 냉난방 운전모드시 급탕열교환기(23)의 부하를 20% 이내로 유지하고, 급탕전용 또는 난방전용 운전모드시 급탕열교환기(23)의 부하를 각각 100% 또는 0%로 유지하는 것을 특징으로 하는 3중 효용의 히트펌프 시스템.The method of claim 1,
The four-way valves 31 and 32 maintain the load of the hot water supply heat exchanger 23 within 20% in the heating and cooling operation mode, and 100% the load of the hot water supply heat exchanger 23 in the hot water only or heating only operation mode. Or 0%, wherein the triple effect heat pump system is maintained. 제2항에 있어서,
상기 급탕열교환기(23)의 설정된 부하 유지를 위하여 온수탱크(13)의 수관 상에 인버터펌프(24)를 사용하는 것을 특징으로 하는 3중 효용의 히트펌프 시스템.The method of claim 2,
Triple-effect heat pump system characterized in that for using the inverter pump 24 on the water pipe of the hot water tank (13) to maintain the set load of the hot water heat exchanger (23). 제1항에 있어서,
상기 냉각기(33)는 다수의 체크밸브(51~54)를 개재하여 설치되어, 냉방 운전모드시 지열열교환기(25)의 하류측으로 연결되고, 난방 운전모드시 지열열교환기(25)의 상류측으로 연결되는 것을 특징으로 하는 3중 효용의 히트펌프 시스템.The method of claim 1,
The cooler 33 is installed via a plurality of check valves 51 to 54 and connected to the downstream side of the geothermal heat exchanger 25 in the cooling operation mode, and upstream of the geothermal heat exchanger 25 in the heating operation mode. Triple effect heat pump system, characterized in that connected. 제1항에 있어서,
상기 수관(61~63) 상에 냉각기(33)를 우회하여 보조팬코일유니트(35)와 지열열교환기(25)를 거치는 유로를 형성하도록 바이패스관(71)(72)과 함께 3방향밸브(73)(74)를 구비하는 것을 특징으로 하는 3중 효용의 히트펌프 시스템.The method of claim 1,
Three-way valve with bypass pipes 71 and 72 to bypass the cooler 33 on the water pipes 61 to 63 to form a flow path through the auxiliary fan coil unit 35 and the geothermal heat exchanger 25. (73) (74), The triple effect heat pump system characterized by the above-mentioned.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102020177B1 (en) * 2019-03-07 2019-09-10 (주)엠티이에스 Heat pump system using geothermal heat or waste heat
KR102167073B1 (en) * 2020-01-30 2020-10-16 주식회사 제이앤지 Geothermal heat system comprising heat recovery type dew condensation preventing apparatus

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KR100540362B1 (en) 2003-01-14 2006-01-10 문영치 Heating, cooling and hot water supply system with heat pump
KR100900441B1 (en) 2008-02-18 2009-06-01 유한회사제이앤지 Heat pump airconditioning and heating equipement using geothermy
KR100984704B1 (en) 2010-06-09 2010-10-01 주식회사 제이앤지 Geothermal heat pump system with rainwater
KR101003040B1 (en) 2010-10-08 2010-12-21 박영 A package type heat pump to use of susterranean heat

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Publication number Priority date Publication date Assignee Title
KR100540362B1 (en) 2003-01-14 2006-01-10 문영치 Heating, cooling and hot water supply system with heat pump
KR100900441B1 (en) 2008-02-18 2009-06-01 유한회사제이앤지 Heat pump airconditioning and heating equipement using geothermy
KR100984704B1 (en) 2010-06-09 2010-10-01 주식회사 제이앤지 Geothermal heat pump system with rainwater
KR101003040B1 (en) 2010-10-08 2010-12-21 박영 A package type heat pump to use of susterranean heat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102020177B1 (en) * 2019-03-07 2019-09-10 (주)엠티이에스 Heat pump system using geothermal heat or waste heat
KR102167073B1 (en) * 2020-01-30 2020-10-16 주식회사 제이앤지 Geothermal heat system comprising heat recovery type dew condensation preventing apparatus

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