KR20100024157A - Heat pump system and method for controlling the same - Google Patents

Heat pump system and method for controlling the same Download PDF

Info

Publication number
KR20100024157A
KR20100024157A KR1020080082880A KR20080082880A KR20100024157A KR 20100024157 A KR20100024157 A KR 20100024157A KR 1020080082880 A KR1020080082880 A KR 1020080082880A KR 20080082880 A KR20080082880 A KR 20080082880A KR 20100024157 A KR20100024157 A KR 20100024157A
Authority
KR
South Korea
Prior art keywords
heating
heat
working fluid
refrigerant
pump system
Prior art date
Application number
KR1020080082880A
Other languages
Korean (ko)
Other versions
KR101533112B1 (en
Inventor
장성민
이재원
유윤호
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020080082880A priority Critical patent/KR101533112B1/en
Priority to US12/457,644 priority patent/US20100043465A1/en
Priority to EP09163649A priority patent/EP2159515A3/en
Priority to CN200910139925A priority patent/CN101660851A/en
Publication of KR20100024157A publication Critical patent/KR20100024157A/en
Application granted granted Critical
Publication of KR101533112B1 publication Critical patent/KR101533112B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • 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
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • 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
    • F25B2313/008—Refrigerant heaters
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • 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
    • F25B2500/31—Low ambient temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21175—Temperatures of an evaporator of the refrigerant at the outlet of the evaporator

Landscapes

  • 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)
  • Central Heating Systems (AREA)

Abstract

PURPOSE: A heat pump system and a control method thereof are provided to improve the efficiency of heating a room. CONSTITUTION: A heat pump system comprises an air conditioning system(100) and a heater(200). The air conditioning system cools or heats a space by heat exchange with circulating refrigerant and outside air. The air conditioning system comprises one or more outdoor units(110) and one or more indoor units(120). An outdoor heat exchanger and a compressor are installed in the outdoor unit. The indoor heat exchanger is installed in the indoor unit. The heater heats working fluid which heat-exchanges with the refrigerant circulating the air conditioning system. The heater comprises a heating part(220) and a heat exchange unit(230).

Description

히트펌프 시스템 및 그 제어방법{Heat pump system and method for controlling the same}Heat pump system and method for controlling the same

본 발명은 히트펌프 시스템에 관한 것으로, 보다 상세하게는 난방운전시 냉매를 가열하기 위한 가열장치를 포함하는 히트펌프 시스템 및 그 제어방법에 관한 것이다.The present invention relates to a heat pump system, and more particularly, to a heat pump system including a heating device for heating a refrigerant during a heating operation and a control method thereof.

일반적으로 히트펌프 시스템은, 실내를 냉방 또는 난방시키기 위하여 열교환사이클을 구성하는 압축기, 사방밸브, 실내열교환기 및 실외열교환기 등을 포함한다. 난방운전시에는, 상기 실외열교환기는 증발기로써 동작하고, 상기 실내열교환기는 팽창기로써 동작한다. 보다 상세하게는, 상기 실외열교환기에서 증발되면서 실외공기와 열교환한 냉매가 상기 압축기에서 고온, 고압으로 압축되어 상기 실내열교환기에서 팽창되면서 실내공기와 열교환됨으로써, 실내의 난방이 이루어진다.Generally, a heat pump system includes a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, and the like, which constitute a heat exchange cycle for cooling or heating an indoor room. In the heating operation, the outdoor heat exchanger operates as an evaporator, and the indoor heat exchanger operates as an expander. More specifically, the refrigerant heat exchanged with the outdoor air while being evaporated in the outdoor heat exchanger is compressed to high temperature and high pressure in the compressor and expanded in the indoor heat exchanger, thereby exchanging heat with the indoor air, thereby making room heating.

그러나 종래의 기술에 의한 히트펌프 시스템에서는, 실외온도가 현저히 낮은 경우에는, 증발기로 동작하는 상기 실외열교환기에서의 냉매의 효율적인 증발이 이루어지지 못하게 될 수 있다. 따라서 이와 같은 냉매의 비효율적인 증발에 의하여 난방효율이 저하되는 단점이 발생하게 된다.However, in the heat pump system according to the related art, when the outdoor temperature is significantly low, efficient evaporation of the refrigerant in the outdoor heat exchanger operating as the evaporator may not be achieved. Therefore, there is a disadvantage that the heating efficiency is lowered by the inefficient evaporation of the refrigerant.

본 발명은 상술한 바와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 보다 효율적인 난방이 가능하도록 구성되는 히트펌프 시스템 및 그 제어방법을 제공하는 것이다.The present invention is to solve the problems of the prior art as described above, it is an object of the present invention to provide a heat pump system and a control method configured to enable more efficient heating.

상술한 바와 같은 목적을 달성하기 위한 본 발명의 실시예에 의하면, 본 발명은 순환하는 냉매와 실외공기 및 실내공기와의 열교환에 의하여 공간의 냉방 또는 난방을 위한 공조장치; 및 작동유체를 가열하는 가열부 및 상기 가열부에서 가열된 상기 작동유체와 냉매를 열교환시키는 열교환부를 포함하는 가열장치; 를 포함하고, 상기 가열부는 상기 작동유체의 온도가 기설정된 기준온도 이상이 되면 정지된다.According to an embodiment of the present invention for achieving the above object, the present invention provides an air conditioning apparatus for cooling or heating a space by heat exchange between a circulating refrigerant and outdoor air and indoor air; And a heating unit configured to heat a working fluid, and a heat exchanger configured to exchange heat between the working fluid and the refrigerant heated in the heating unit. It includes, and the heating unit is stopped when the temperature of the working fluid reaches a predetermined reference temperature or more.

본 발명의 다른 실시예에 의하면, 본 발명은 (A) 공조장치가, 난방운전하는 단계; (B) 가열장치에 의하여 가열되는 작동유체가, 상기 공조장치를 순환하는 냉매와 열교환하는 단계; 및 (C) 상기 가열장치가, 상기 작동유체의 온도가 기설정된 기준온도 이상이 되면, 정지되는 단계; 를 포함한다.According to another embodiment of the present invention, the present invention (A) the air conditioner, heating operation; (B) heat-acting the working fluid heated by the heating apparatus with the refrigerant circulating the air conditioning apparatus; And (C) the heating apparatus being stopped when the temperature of the working fluid reaches a predetermined reference temperature or more; It includes.

본 발명에 의하면, 보다 효율적인 난방이 가능해지는 이점이 있다.According to the present invention, there is an advantage that more efficient heating is possible.

이하에서는 본 발명에 의한 히트펌프 시스템의 실시예를 첨부된 도면을 참조 하여 보다 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings an embodiment of a heat pump system according to the present invention will be described in more detail.

도 1은 본 발명에 의한 히트펌프 시스템의 실시예를 보인 구성도이다.1 is a configuration diagram showing an embodiment of a heat pump system according to the present invention.

도 1을 참조하면, 본 발명에 의한 히트펌프 시스템은, 공조장치(100) 및 가열장치(200)를 포함한다. 상기 공조장치(100)에는 냉방 또는 난방을 위한 각종 부품이 설치된다. 그리고 상기 가열장치(200)는, 난방운전시 상기 공조장치(100)를 순환하는 냉매를 가열하는 역할을 한다. Referring to FIG. 1, a heat pump system according to the present invention includes an air conditioning apparatus 100 and a heating apparatus 200. The air conditioning apparatus 100 is provided with various components for cooling or heating. The heating apparatus 200 serves to heat the refrigerant circulating in the air conditioning apparatus 100 during the heating operation.

보다 상세하게는, 상기 공조장치(100)는 실외기(110) 및 실내기(120)를 포함한다. 상기 실외기(110)에는 실외열교환기(미도시) 및 압축기(미도시)를 포함하는 각종 부품이 설치된다. 상기 실내기(120)에는 실내열교환기(미도시)를 포함하는 각종 부품이 설치된다. 상기 실외열교환기는 냉방운전시에는 응축기로 동작되고, 난방운전시에는 증발기로 동작된다. 그리고 상기 실내열교환기는 냉방운전시에는 증발기로 동작되고, 난방운전시에는 응축기로 동작된다. 본 실시예에서는, 상기 실외기(110)는 1개로 구성되고, 상기 실내기(120)는 다수개로 구성되지만, 반드시 이에 한정되는 것은 아니다. 다시 말하면, 상기 실외기(110)가 다수개로 구성되거나, 상기 실내기(120)가 1개 또는 상기 실외기(110)에 대응되는 개수로 구성되어도 무방하다.In more detail, the air conditioning apparatus 100 includes an outdoor unit 110 and an indoor unit 120. The outdoor unit 110 is provided with various components including an outdoor heat exchanger (not shown) and a compressor (not shown). The indoor unit 120 is provided with various components including an indoor heat exchanger (not shown). The outdoor heat exchanger is operated as a condenser during the cooling operation and an evaporator during the heating operation. The indoor heat exchanger is operated as an evaporator during the cooling operation and as a condenser during the heating operation. In the present embodiment, the outdoor unit 110 is composed of one, the indoor unit 120 is composed of a plurality, but is not necessarily limited thereto. In other words, the outdoor unit 110 may be configured in plural, or the indoor unit 120 may be configured in one or a number corresponding to the outdoor unit 110.

상기 실외기(110) 및 실내기(120)는 냉매관(130)으로 연결된다. 상기 냉매관(130)은 상기 실외기(110) 및 실내기(120)를 순환하는 냉매가 유동되는 곳이다. 또한 도시되지는 않았으나, 상기 실외기(110) 및 실내기(120)는, 양자 사이의 전원의 전달 및 통신을 위한 전원선 및 통신선으로 연결된다.The outdoor unit 110 and the indoor unit 120 are connected to the refrigerant pipe 130. The coolant pipe 130 is where the coolant circulating the outdoor unit 110 and the indoor unit 120 flows. In addition, although not shown, the outdoor unit 110 and the indoor unit 120 is connected to a power line and a communication line for transmission and communication of power therebetween.

한편 상기 실외기(110)에는 바이패스관(111)이 구비된다. 상기 바이패스관(111)은 상기 공조장치(100)를 순환하는 냉매를 후술할 열교환부(230)로 바이패스시키는 역할을 한다. 상기 바이패스관(111)에는 밸브(113)가 설치된다. 상기 밸브(113)는, 상기 가열장치(200)의 사용여부, 즉 상기 가열장치(200)에 의한 상기 냉매의 가열여부에 따라서 상기 냉매관(130)을 순환하는 냉매가 상기 바이패스관(111)으로 선택적으로 바이패스되도록 한다. Meanwhile, the outdoor unit 110 is provided with a bypass pipe 111. The bypass pipe 111 serves to bypass the refrigerant circulating through the air conditioning apparatus 100 to the heat exchanger 230 to be described later. The valve 113 is installed in the bypass pipe 111. The valve 113, the refrigerant circulating the refrigerant pipe 130 according to whether the heating device 200 is used, that is, whether the refrigerant is heated by the heating device 200 is the bypass pipe 111 Optional bypass).

그리고 상기 가열장치(200)는, 유체관(210), 가열부(220), 열교환부(230), 펌프(240) 및 센서(250)를 포함한다. 상기 유체관(210)은 상기 작동유체가 유동하는 곳이다. 그리고 상기 가열부(220)는 실질적으로 상기 유체관(210)을 유동하는 작동유체를 가열하여 열을 발생시키는 부분이다. 상기 가열부(220)로는, 예를 들면, 일반적인 보일러가 사용될 수도 있다. 그리고 상기 열교환부(230)는, 상기 가열부(220)에서 발생된 열을 상기 냉매에 전달시키는 역할을 한다. 보다 상세하게는, 상기 열교환부(230)는, 상기 가열부(220)에 의하여 가열된 작동유체와 상기 공조장치(100)를 순환하는 냉매를 열교환시킴으로써 상기 냉매를 가열한다. 이를 위하여 상기 유체관(210)를 유동하는 작동유체 및 상기 바이패스관(111)을 유동하는 냉매는 상기 열교환부(230)를 통과하면서 서로 열교환한다. 물론 상기 열교환부(230)의 내부에 상기 바이패스관(111)을 유동하는 냉매와 상기 유체관(210)을 유동하는 작동유체 사이의 열교환을 위한 열전달매체가 구비될 수 있다. 그리고 상기 펌프(240)는, 상기 작동유체가 상기 유체관(210)을 순환하도록 압송하는 역할을 한다. 상기 센서(250)는 상기 유체관(210)을 유동하는 상기 작동유체의 온도를 감 지한다. 바람직하게는, 상기 센서(250)는 상기 가열부(220)에서 가열되어 상기 열교환부(230)로 유동되는 상기 작동유체의 온도를 감지할 수 있도록 상기 유체관(210)의 일측에 설치될 수 있다.The heating device 200 includes a fluid pipe 210, a heating unit 220, a heat exchanger 230, a pump 240, and a sensor 250. The fluid pipe 210 is where the working fluid flows. In addition, the heating unit 220 is a portion that generates heat by substantially heating the working fluid flowing through the fluid pipe 210. As the heating unit 220, for example, a general boiler may be used. In addition, the heat exchanger 230 serves to transfer the heat generated from the heating unit 220 to the refrigerant. More specifically, the heat exchanger 230 heats the refrigerant by heat-exchanging the working fluid heated by the heating unit 220 and the refrigerant circulating through the air conditioning apparatus 100. To this end, the working fluid flowing through the fluid pipe 210 and the refrigerant flowing through the bypass pipe 111 exchange heat with each other while passing through the heat exchange part 230. Of course, a heat transfer medium for heat exchange between the refrigerant flowing through the bypass pipe 111 and the working fluid flowing through the fluid pipe 210 may be provided inside the heat exchange part 230. In addition, the pump 240 serves to pump the working fluid to circulate the fluid pipe 210. The sensor 250 senses the temperature of the working fluid flowing through the fluid pipe 210. Preferably, the sensor 250 may be installed at one side of the fluid pipe 210 so as to sense the temperature of the working fluid heated in the heating part 220 and flows to the heat exchange part 230. have.

이하에서는 본 발명에 의한 히트펌프 시스템의 제어방법을 첨부된 도면을 참조하여 보다 상세하게 설명한다.Hereinafter, a control method of a heat pump system according to the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 의한 히트펌프 시스템의 제어방법의 실시예를 보인 제어흐름도이다. 2 is a control flowchart showing an embodiment of a control method of a heat pump system according to the present invention.

도 2를 참조하면, 먼저 공조장치(100)가 난방운전된다.(S11) 이때 상기 공조장치(100)의 실외열교환기와 실내열교환기는 각각 증발기와 응축기로 동작된다.Referring to FIG. 2, first, the air conditioner 100 is heated and operated. (S11) At this time, the outdoor heat exchanger and the indoor heat exchanger of the air conditioner 100 are operated as an evaporator and a condenser, respectively.

상기 공조장치(100)가 난방운전되면, 상기 공조장치(100)를 순환하는 냉매의 가열이 필요한지 여부를 판단한다.(S13) 상기 냉매의 가열이 필요한지 여부는, 예를 들면, 실외공기의 온도가 기설정된 온도 이하, 즉 상기 실외열교환기에서 상기 냉매의 충분한 증발이 이루어지지는 않지 여부에 따라서 판단한다.When the air conditioning apparatus 100 is heated and operated, it is determined whether heating of the refrigerant circulating through the air conditioning apparatus 100 is necessary. (S13) Whether the heating of the refrigerant is necessary is, for example, the temperature of outdoor air. It is determined according to whether or not a predetermined evaporation of the refrigerant in the outdoor heat exchanger is less than a predetermined temperature.

그리고 상기 S13단계에서 상기 냉매의 가열이 필요한 것으로 판단된 경우에는, 가열장치(200)가 동작된다.(S15) 보다 상세하게는, 가열부(220)가 온동작되어 작동유체가 가열된다. 그리고 가열된 상기 작동유체는 유체관(210)을 유동하여 열교환부(230)를 통과한다. 또한 상기 공조장치(100)를 순환하는 냉매, 보다 상세하게는, 상기 실외열교환에서 증발되어 압축기로 전달되는 냉매는, 밸브(113)의 개방에 의하여 바이패스관(111)을 유동하여 상기 열교환부(230)를 통과한다. 따라서 상기 냉매와 작동유체 사이의 열교환이 이루어짐으로써, 상기 작동유체가 가열된 다.When it is determined in step S13 that the refrigerant needs to be heated, the heating device 200 is operated. (S15) More specifically, the heating unit 220 is turned on to operate the working fluid. The heated working fluid flows through the fluid pipe 210 and passes through the heat exchange part 230. In addition, the refrigerant circulating through the air conditioning apparatus 100, more specifically, the refrigerant evaporated in the outdoor heat exchange and delivered to the compressor, flows through the bypass pipe 111 by opening the valve 113 to the heat exchange unit. Pass 230. Therefore, heat exchange between the refrigerant and the working fluid is performed, whereby the working fluid is heated.

한편 상기 가열장치(200)가 동작되는 상태에서, 상기 센서(250)는 상기 작동유체의 온도를 감지한다. 그리고 상기 작동유체의 온도가 기설정된 기준온도를 초과하는지 여부를 판단한다.(S17)  On the other hand, in the state in which the heating device 200 is operated, the sensor 250 detects the temperature of the working fluid. And it is determined whether the temperature of the working fluid exceeds a predetermined reference temperature (S17).

상기 S17단계에서, 상기 작동유체의 온도가 상기 기준온도를 초과한 것으로 판단된 경우에는, 상기 가열장치(200)가 정지된다. 이는 상기 공조장치(100)에서 필요로 하는 열량과 무관하게 상기 가열장치(200)에 의하여 상기 작동유체가 가열됨으로써, 실질적으로 상기 냉매가 과열되는 현상을 방지하기 위함이다. 또한 상기 가열장치(200)가 정지되면, 상기 밸브(113)가 닫혀서 상기 바이패스관(111)을 통한 상기 냉매의 바이패스가 중지될 것이다.In step S17, when it is determined that the temperature of the working fluid exceeds the reference temperature, the heating device 200 is stopped. This is to prevent the phenomenon in which the refrigerant is substantially overheated by heating the working fluid by the heating device 200 regardless of the amount of heat required by the air conditioning apparatus 100. In addition, when the heating apparatus 200 is stopped, the valve 113 is closed to stop the bypass of the refrigerant through the bypass pipe 111.

이와 같은 본 발명의 기본적인 기술적 사상의 범주 내에서 당업계의 통상의 지식을 가진 자에게 있어서는 다른 많은 변형이 가능함은 물론이고, 본 발명의 권리범위는 첨부한 특허청구범위에 기초하여 해석되어야 할 것이다. Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

이상에서 설명한 바와 같이 구성되는 본 발명에 의한 히트펌프 시스템 및 그 제어방법에 의하면 다음과 같은 효과를 기대할 수 있게 된다.According to the heat pump system and the control method according to the present invention configured as described above it can be expected the following effects.

먼저 본 발명에서는, 실외열교환기에서 증발된 냉매가 가열장치에 의하여 가열된다. 따라서 난방운전시 압축기로 전달되는 냉매의 온도가 증가됨으로써, 난방이 효율적으로 이루어질 수 있게 된다.First, in the present invention, the refrigerant evaporated in the outdoor heat exchanger is heated by the heating device. Therefore, the temperature of the refrigerant delivered to the compressor during the heating operation is increased, thereby enabling efficient heating.

그리고 본 발명에서는, 상기 가열장치를 유동하는 작동유체의 온도에 따라서 상기 가열장치를 온/오프동작시킨다. 따라서 상기 가열장치에 의하여 상기 냉매가 과열되는 현상이 방지됨으로써, 히트펌프 시스템이 손상되는 현상이 방지될 수 있다.In the present invention, the heating device is turned on / off according to the temperature of the working fluid flowing through the heating device. Therefore, the phenomenon in which the refrigerant is overheated by the heating device is prevented, thereby preventing the heat pump system from being damaged.

또한 본 발명에 의하면, 상기 가열장치의 동작, 실질적으로 가열부의 동작이 상기 가열부에 의하여 가열되는 작동유체의 온도에 따라서 제어된다. 따라서 상기 가열부로 다양한 타입의 가열수단, 예를 들면, 보일러를 가열부로 사용하더라도, 용이하게 제어할 수 있게 된다.In addition, according to the present invention, the operation of the heating device, substantially the operation of the heating unit is controlled according to the temperature of the working fluid heated by the heating unit. Therefore, even if various types of heating means, for example, a boiler is used as the heating portion, the heating portion can be easily controlled.

도 1은 본 발명에 의한 히트펌프 시스템의 실시예를 보인 구성도.1 is a block diagram showing an embodiment of a heat pump system according to the present invention.

도 2는 본 발명에 의한 히트펌프 시스템의 제어방법의 실시예를 보인 제어흐름도.Figure 2 is a control flow diagram showing an embodiment of a control method of a heat pump system according to the present invention.

Claims (8)

순환하는 냉매와 실외공기 및 실내공기와의 열교환에 의하여 공간의 냉방 또는 난방을 위한 공조장치; 및 An air conditioning apparatus for cooling or heating a space by heat exchange between a circulating refrigerant and outdoor air and indoor air; And 상기 공조장치를 순환하는 냉매와 열교환하는 작동유체를 가열하고, 상기 작동유체의 온도에 따라서 동작이 제어되는 가열장치; 를 포함하는 히트펌프 시스템.A heating device for heating a working fluid for exchanging heat with a refrigerant circulating in the air conditioning apparatus, and controlling an operation according to the temperature of the working fluid; Heat pump system comprising a. 제 1 항에 있어서, The method of claim 1, 상기 냉매는 바이패스관으로 선택적으로 바이패스되어 상기 작동유체와 열교환되는 히트펌프 시스템.And the refrigerant is selectively bypassed by a bypass pipe to exchange heat with the working fluid. 제 1 항에 있어서, The method of claim 1, 상기 공조장치는, The air conditioning device, 실외열교환기 및 압축기가 설치되는 적어도 1개의 실외기; 및 At least one outdoor unit in which an outdoor heat exchanger and a compressor are installed; And 실내열교환기가 설치되는 적어도 1개의 실내기; 를 포함하는 히트펌프 시스템. At least one indoor unit in which an indoor heat exchanger is installed; Heat pump system comprising a. 제 1 항에 있어서, The method of claim 1, 상기 가열장치는, The heating device, 상기 작동유체를 가열하는 가열부; 및 A heating unit for heating the working fluid; And 상기 가열부에서 가열된 상기 작동유체와 냉매를 열교환시키는 열교환부; 를 포함하는 히트펌프 시스템.A heat exchanger configured to exchange heat between the working fluid and the refrigerant heated in the heating unit; Heat pump system comprising a. 제 1 항에 있어서, The method of claim 1, 상기 가열장치는, 상기 작동유체의 온도가 기설정된 기준온도 이상이 되면 정지되는 히트펌프 시스템.The heating device, the heat pump system is stopped when the temperature of the working fluid exceeds a predetermined reference temperature. (A) 공조장치가, 난방운전하는 단계; (A) the air conditioner, heating operation; (B) 가열장치에 의하여 가열되는 작동유체가, 상기 공조장치를 순환하는 냉매와 열교환하는 단계; 및 (B) heat-acting the working fluid heated by the heating apparatus with the refrigerant circulating the air conditioning apparatus; And (C) 상기 가열장치가, 상기 작동유체의 온도가 기설정된 기준온도 이상이 되면, 정지되는 단계; 를 포함하는 히트펌프 시스템의 제어방법.(C) the heating device being stopped when the temperature of the working fluid reaches a predetermined reference temperature or more; Control method of a heat pump system comprising a. 제 6 항에 있어서, The method of claim 6, 상기 (B) 단계에서, In the step (B), 상기 가열장치는, 상기 냉매의 가열이 필요한 경우에만 동작하는 히트펌프 시스템의 제어방법.The heating device is a control method of a heat pump system that operates only when the heating of the refrigerant is required. 제 7 항에 있어서, The method of claim 7, wherein 상기 (B) 단계에서, In the step (B), 상기 냉매의 가열의 필요여부는, 적어도 상기 공기조화장치를 순환하는 냉매와 실외온도의 차이를 고려하여 결정되는 히트펌프 시스템의 제어방법. The heating method of the heat pump system is determined by considering at least the difference between the outdoor temperature and the refrigerant circulating the air conditioner.
KR1020080082880A 2008-08-25 2008-08-25 Heat pump system and method for controlling the same KR101533112B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020080082880A KR101533112B1 (en) 2008-08-25 2008-08-25 Heat pump system and method for controlling the same
US12/457,644 US20100043465A1 (en) 2008-08-25 2009-06-17 Heat pump system and method of controlling the same
EP09163649A EP2159515A3 (en) 2008-08-25 2009-06-24 Heat pump system and method of controlling the same
CN200910139925A CN101660851A (en) 2008-08-25 2009-07-15 Heat pump system and method of controlling the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080082880A KR101533112B1 (en) 2008-08-25 2008-08-25 Heat pump system and method for controlling the same

Publications (2)

Publication Number Publication Date
KR20100024157A true KR20100024157A (en) 2010-03-05
KR101533112B1 KR101533112B1 (en) 2015-07-02

Family

ID=41214978

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080082880A KR101533112B1 (en) 2008-08-25 2008-08-25 Heat pump system and method for controlling the same

Country Status (4)

Country Link
US (1) US20100043465A1 (en)
EP (1) EP2159515A3 (en)
KR (1) KR101533112B1 (en)
CN (1) CN101660851A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102283283B (en) * 2011-05-30 2013-05-01 广西大学 Intelligentized superficial geothermal energy low-temperature grain storage system
EP2631565B1 (en) 2012-02-24 2018-10-10 Airbus Operations GmbH Cooling system for operation with a two-phase refrigerant
EP2908070B1 (en) * 2012-10-10 2020-08-05 Mitsubishi Electric Corporation Air conditioning device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165037A (en) * 1976-06-21 1979-08-21 Mccarson Donald M Apparatus and method for combined solar and heat pump heating and cooling system
US4338790A (en) * 1980-02-21 1982-07-13 The Trane Company Control and method for defrosting a heat pump outdoor heat exchanger
JPS5883061U (en) * 1981-12-02 1983-06-04 株式会社日立製作所 Heat pump hot water heating and cooling system
JP2682729B2 (en) * 1990-07-20 1997-11-26 松下電器産業株式会社 Refrigerant heating type air conditioner and starting method thereof
US5878810A (en) * 1990-11-28 1999-03-09 Kabushiki Kaisha Toshiba Air-conditioning apparatus
JPH11108485A (en) * 1997-09-30 1999-04-23 Matsushita Electric Ind Co Ltd Method for controlling air conditioner and outlet temperature of refrigerant heater
DE19813674C1 (en) * 1998-03-27 1999-04-15 Daimler Chrysler Ag Air conditioner for motor vehicle interior
JP3939445B2 (en) * 1998-08-05 2007-07-04 カルソニックカンセイ株式会社 Air conditioner for automobile
US6118099A (en) * 1998-11-12 2000-09-12 Daimlerchrysler Corporation Controller for heating in reversible air conditioning and heat pump HVAC system for electric vehicles
JP2004268752A (en) * 2003-03-10 2004-09-30 Denso Corp Heat management system
KR100511286B1 (en) * 2003-05-01 2005-08-31 엘지전자 주식회사 Air conditioner capable of defrosting and heating operation simultaneously and out door unit with self defrosting cycle for air conditioner
JP4654655B2 (en) * 2004-10-19 2011-03-23 株式会社デンソー Vapor compression refrigerator

Also Published As

Publication number Publication date
EP2159515A3 (en) 2011-03-02
CN101660851A (en) 2010-03-03
EP2159515A2 (en) 2010-03-03
KR101533112B1 (en) 2015-07-02
US20100043465A1 (en) 2010-02-25

Similar Documents

Publication Publication Date Title
JP2012141113A (en) Air conditioning/water heating device system
JP5300806B2 (en) Heat pump equipment
JPWO2015122171A1 (en) Air conditioner
JP2005069554A (en) Water heat source air conditioning system
EP2672204B1 (en) Binary refrigeration cycle device
EP3385642B1 (en) Exhaust heat recovery system
KR20130093297A (en) Gas heat pump system
KR101687650B1 (en) Air conditioner using heat pump
KR100845607B1 (en) Heat pump using geothermy improved heatingcapacity
JP2018063090A (en) Heat pump water heater with cooling/heating function
JP6907653B2 (en) Air conditioning system
KR101533112B1 (en) Heat pump system and method for controlling the same
KR100795407B1 (en) Control device for air conditioning and heating apparatus refrigerant-pressure
JP2016102636A (en) Air conditioning system
KR101532781B1 (en) Air conditioning system
JP2018063091A (en) Heat pump water heater with cooling function
KR101727730B1 (en) Energy measuring system with high efficient and control method for energy measuring system with high efficient using the same
WO2019078247A1 (en) Air-conditioning apparatus
KR101321545B1 (en) Air conditioner
EP3674622B1 (en) Fluid control for a variable flow fluid circuit of a unit in an hvacr system
JP6448295B2 (en) Air conditioning system
KR102066694B1 (en) An engine-driven heat pump system
KR101642437B1 (en) Cooling and heating system
KR20140089796A (en) Air conditioner
WO2016024504A1 (en) Load distribution system

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20180514

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20190514

Year of fee payment: 5