US20060156752A1 - Cooling/heating air conditioner with humidifying function - Google Patents

Cooling/heating air conditioner with humidifying function Download PDF

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Publication number
US20060156752A1
US20060156752A1 US11/316,987 US31698705A US2006156752A1 US 20060156752 A1 US20060156752 A1 US 20060156752A1 US 31698705 A US31698705 A US 31698705A US 2006156752 A1 US2006156752 A1 US 2006156752A1
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United States
Prior art keywords
condensed water
steam
air conditioner
cooling
set forth
Prior art date
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Abandoned
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US11/316,987
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English (en)
Inventor
Young Park
Ki Kim
Jin Choi
Jae Kang
Baik Chung
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LG Electronics Inc
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LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHOI, JIN HA, CHUNG, BAIK YOUNG, KANG, JAE SIK, KIM, KI BUM, PARK, YOUNG MIN
Publication of US20060156752A1 publication Critical patent/US20060156752A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/18—Air-humidification, e.g. cooling by humidification by injection of steam into the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F24F2013/225—Means for preventing condensation or evacuating condensate for evacuating condensate by evaporating the condensate in the cooling medium, e.g. in air flow from the condenser
    • 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
    • F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with multiple indoor units
    • 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
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to a cooling/heating air conditioner, and, more particularly, to a cooling/heating air conditioner with a humidifying function, which is capable of supplying humidifying air into a region to be heated, by use of condensed water produced in a heat exchanger that serves as a condenser.
  • a simultaneous cooling/heating type air conditioner is a kind of multiple air conditioner.
  • the simultaneous cooling/heating type air conditioner simultaneously performs cooling and heating operations to individually cool or heat rooms where indoor units of the air conditioner are installed.
  • the simultaneous cooling/heating air conditioner is configured such that, when one or more rooms are to be heated, the indoor units installed at the corresponding rooms are operated in heating mode, and, at the same time, when one or more rooms are to be cooled, the indoor units installed at the corresponding rooms are operated in cooling mode.
  • FIG. 1 is a circuit diagram of a conventional cooling/heating air conditioner operated in main cooling mode.
  • the conventional cooling/heating air conditioner generally comprises an outdoor unit A, a distributor B, and a plurality of indoor units C.
  • a compressor 1 In the outdoor unit A are mounted a compressor 1 , an outdoor heat exchanger 2 , a 4-way valve 3 , and an accumulator 8 .
  • high-pressure pipes 20 , 20 a , 20 b , and 20 c through which high-pressure refrigerant flows, low-pressure pipes 21 , 21 a , 21 b , and 21 c , through which low-pressure refrigerant flows, and liquid pipes 22 , 22 a , 22 b , and 22 c .
  • the high-pressure pipes 20 , 20 a , 20 b , and 20 c , the low-pressure pipes 21 , 21 a , 21 b , and 21 c , and the liquid pipes 22 , 22 a , 22 b , 22 c extend through the distributor B.
  • high-pressure valves 20 a , 20 b , and 20 c On the high-pressure pipes 20 a , 20 b , and 20 c are mounted high-pressure valves 30 a , 30 b , and 30 c , respectively.
  • low-pressure valves 21 a , 31 b , and 31 c On the low-pressure pipes 21 a , 21 b , and 21 c are mounted low-pressure valves 31 a , 31 b , and 31 c , respectively.
  • indoor units C are mounted indoor heat exchangers 50 a , 50 b , and 50 c and electronic expansion valves 55 a , 55 b , and 55 c.
  • the conventional simultaneous cooling/heating air conditioner controls the 4-way valve 3 , the high-pressure valves 30 a , 30 b , and 30 c , and the low-pressure valves 31 a , 31 b , and 31 c based on operation mode, such as full cooling mode, main cooling mode, full heating mode, or main heating mode, to simultaneously or individually perform cooling and heating operations.
  • operation mode such as full cooling mode, main cooling mode, full heating mode, or main heating mode
  • FIG. 1 shows the main cooling operation of the conventional cooling/heating air conditioner.
  • refrigerant discharged from the compressor 1 , flows to the liquid pipe 22 through the outdoor heat exchanger 2 .
  • the refrigerant flows to the high-pressure pipe 20 .
  • the refrigerant having passed through the outdoor heat exchanger 2 , flows through the electronic expansion valves 55 a and 55 b and the indoor heat exchangers 50 a and 50 b to cool the rooms where the corresponding indoor units are installed.
  • the refrigerant flows to the compressor 1 through the low-pressure valves 31 a and 31 b , the low-pressure pipes 21 a , 21 b , and 21 , and the accumulator 8 .
  • the refrigerant having passed through the high-pressure pipe 20 , flows through the high-pressure valve 30 c , which is opened, and the indoor heat exchanger 50 c to heat the room where the corresponding indoor unit is installed. Subsequently, the refrigerant, having passed through the indoor heat exchanger 50 c , joins the refrigerant flowing to the indoor heat exchangers 50 a and 50 b , and then flows through the indoor heat exchangers 50 a and 50 b to assist the cooling of the rooms. Thereafter, the refrigerant flows to the compressor 1 .
  • the conventional cooling/heating air conditioner When the conventional cooling/heating air conditioner is operated in the full cooling mode, i.e., when all the indoor units C are operated in the cooling mode, supercooled liquid is supplied from the outdoor heat exchanger 2 to the indoor heat exchangers 50 a , 50 b , and 50 c . Consequently, noise is not generated.
  • the conventional cooling/heating air conditioner is operated in the main cooling mode, i.e., when at least one of the indoor units C is operated in the heating mode, on the other hand, not only heating-side indoor heat exchanger 50 c but also the outdoor heat exchanger 2 serves as a condenser.
  • the conventional cooling/heating air conditioner as stated above disadvantageously lacks a humidification function
  • the air conditioner must have a separate humidifier to humidify the room in which the heating-side indoor heat exchanger 50 c operates.
  • cooling-side indoor heat exchangers serve as evaporators, they produce condensed water during cooling operation.
  • the produced condensed water is directly discharged to the outside via a drain hose, and causes a problem of ineffective utilization of the condensed water.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a cooling/heating air conditioner with a humidifying function, which is designed to humidify a region to be heated by use of condensed water that is produced from heat exchangers serving as evaporators, thereby being capable of achieving effective utilization of the condensed water and of simultaneously performing humidifying and heating operations.
  • a cooling/heating air conditioner with a humidifying function comprising: a refrigeration cycle mechanism including a compressor, an outdoor heat exchanger, expansion units, indoor heat exchangers, and a 4-way valve, to enable both cooling and heating operations; a condensed water collecting device to receive and store condensed water, which is produced in part of the outdoor heat exchanger and indoor heat exchangers serving as evaporators; a steam generating device to change the condensed water gathered via the condensed water collecting device into humidifying steam; and a humidifying spray device to supply the steam generated in the steam generating device to rooms.
  • a refrigeration cycle mechanism including a compressor, an outdoor heat exchanger, expansion units, indoor heat exchangers, and a 4-way valve, to enable both cooling and heating operations
  • a condensed water collecting device to receive and store condensed water, which is produced in part of the outdoor heat exchanger and indoor heat exchangers serving as evaporators
  • a steam generating device to change the condensed water gathered via the condensed water collecting
  • the refrigeration cycle mechanism may have a simultaneous cooling and heating structure, which includes a plurality of indoor heat exchangers to enable cooling and heating operations to be simultaneously carried out.
  • the condensed water collecting device may include: a plurality of condensed water sumps located below the outdoor heat exchanger or indoor heat exchangers to receive the condensed water falling from the respective heat exchangers; a steam tank in which the condensed water received in the respective condensed water sumps is gathered; and condensed water pipes connecting the respective condensed water sumps to the steam tank.
  • a pump may be provided on the condensed water pipes to pump the condensed water gathered in the condensed water sumps into the steam tank.
  • the steam tank may be connected to an external water supply device for supplementing water from an external station.
  • the steam generating device may be constructed to generate steam by separating water particles by use of an ultrasonic vibrator.
  • the humidifying spray device may include: a steam pipe extending from the condensed water collecting device to the rooms to transfer the steam generated by the steam generating device into the rooms; and spray nozzles provided at a distal end of the steam pipe to inject the steam into the respective rooms.
  • opening/closing valves may be provided upstream of the spray nozzles to open or close flow paths.
  • steam can be generated by use of condensed water that is produced during cooling/heating operations.
  • the present invention can realize more pleasant air conditioning environment in such a heated room that may be easily dried, and can achieve effective utilization of the condensed water.
  • FIG. 1 is a circuit diagram illustrating a conventional cooling/heating air conditioner
  • FIG. 2 is a circuit diagram illustrating a cooling/heating air conditioner with a humidifying function according to the present invention.
  • FIG. 3 is a perspective view of a heating-side indoor unit according to the present invention, illustrating the discharge of humidifying air.
  • the cooling/heating air conditioner includes three indoor units, although the cooling/heating air conditioner may be a multiple air conditioner including two indoor units or more than three indoor units or a single air conditioner including only one indoor unit.
  • FIG. 2 a cooling/heating air conditioner with a humidifying function according to the present invention is shown in circuit diagram.
  • the cooling/heating air conditioner comprises an outdoor unit A, a distributor B, and a plurality of indoor units C.
  • the outdoor unit A In the outdoor unit A are mounted a compressor 1 , an outdoor heat exchanger 2 , a 4-way valve 3 , and an accumulator 8 are mounted.
  • high-pressure pipes 20 , 20 a , 20 b , and 20 c through which high-pressure refrigerant flows, low-pressure pipes 21 , 21 a , 21 b , and 21 c , through which low-pressure refrigerant flows, and liquid pipes 22 , 22 a , 22 b , and 22 c .
  • the high-pressure pipes 20 , 20 a , 20 b , and 20 c , the low-pressure pipes 21 , 21 a , 21 b , and 21 c , and the liquid pipes 22 , 22 a , 22 b , 22 c extend through the distributor B.
  • high-pressure valves 20 a , 20 b , and 20 c On the high-pressure pipes 20 a , 20 b , and 20 c are mounted high-pressure valves 30 a , 30 b , and 30 c , respectively.
  • low-pressure valves 21 a , 31 b , and 31 c On the low-pressure pipes 21 a , 21 b , and 21 c are mounted low-pressure valves 31 a , 31 b , and 31 c , respectively.
  • indoor units C are mounted indoor heat exchangers 50 a , 50 b , and 50 c and electronic expansion valves 55 a , 55 b , and 55 c.
  • the cooling/heating air conditioner as stated above further comprises a condensed water collecting device for providing the air conditioner with a humidifying function.
  • the condensed water collecting device serves to receive and store condensed water, which is produced in ones of the outdoor heat exchanger 2 and the indoor heat exchangers 50 a , 50 b , and 50 c serving as evaporators.
  • the condensed water collecting device includes: condensed water sumps 61 , 62 , 63 , and 64 , which are located below the outdoor heat exchanger 2 or the indoor heat exchangers 50 a , 50 b , and 50 c , respectively, to receive the condensed water falling from the respective heat exchangers; a steam tank 65 into which the condensed water received in the respective condensed water sumps is gathered; and condensed water pipes 66 and 67 connecting the respective condensed water sumps 61 , 62 , 63 , and 64 to the steam tank 65 .
  • a pump 68 is provided on the condensed water pipes 66 and 67 for pumping the condensed water, received in the condensed water sumps 61 , 62 , 63 , and 64 , into the steam tank 65 .
  • the steam tank 65 is connected to an external water supply device 70 to receive water from an external station when the condensed water of the steam tank 65 is insufficient.
  • the external water supply device 70 includes: a supply hose 71 ; a water storage tank 72 to receive water via the supply hose 71 ; an opening/closing valve 73 provided between the water storage tank 72 and the steam tank 65 to adjust the supply of water; and a water level sensor 74 provided in the steam tank 65 to sense the level of water.
  • the cooling/heating air conditioner of the present invention further comprises a steam generating device 80 for changing the condensed water, which is gathered via the condensed water collecting device as stated above, into humidifying steam.
  • the steam generating device 80 generates steam by separating water particles by use of an ultrasonic vibrator 81 .
  • the steam generating device 80 is a device widely used in general humidifiers, and it is preferred that the steam generating device 80 is mounted to the outdoor unit A or distributor B.
  • the cooling/heating air conditioner of the present invention further comprises a humidifying spray device to supply the steam generated by the steam generating device 80 into a room.
  • the humidifying spray device includes: a steam pipe 85 extending from the condensed water collecting device to the room for transferring the steam generated by the steam generating device; and spray nozzles 86 , 87 , and 88 provided at a distal end of the steam pipe 85 to inject the steam into the respective rooms.
  • the spray nozzles 86 , 87 , and 88 are mounted at a certain location of the respective indoor units C to be partially exposed to the outside, to inject the steam into the corresponding rooms.
  • the spray nozzles may be located on the inside of a discharge opening 58 of the respective indoor units C in accordance with implementation conditions, so that the steam is discharged along with air.
  • opening/closing valves 91 , 92 , and 93 are provided upstream of the spray nozzles 86 , 87 , and 88 , respectively, to selectively open or close flow paths, so that the steam is injected to only a room, which is heating and is thus necessary to be humidified.
  • the steam pipe 85 is provided with a flow rate control valve 95 to adjust the amount of steam to be injected via the spray nozzles 86 , 87 , and 88 .
  • the indoor heat exchangers 50 a and 50 b provided in the two indoor units C 1 and C 2 serve as evaporators.
  • the condensed water produced in the indoor heat exchangers 50 a and 50 b falls into the condensed water sumps 62 and 63 and, then, flows through the condensed water pipe 67 , to be gathered in the steam tank 65 .
  • the pump 68 is driven, so that the condensed water is stored in the steam tank 65 .
  • the steam generating device 80 using the ultrasonic vibrator 81 is operated to generate steam. Subsequently, the generated steam is supplied into a room, in which the heating-side indoor unit C 3 is mounted, by way of the steam pipe 85 , thereby acting to humidify the room.
  • the cooling/heating air conditioner when the cooling/heating air conditioner is operated in full heating mode, i.e. when all the rooms are to be heated, all the indoor heat exchangers 50 a , 50 b , and 50 c serve as condensers, and the outdoor heat exchanger 2 serves as an evaporator. Accordingly, the steam can be generated, in the same manner as stated above, by use of the condensed water produced by the outdoor heat exchanger 2 . Then, the steam is supplied into the rooms in which the heating-side indoor units C 1 , C 2 , and C 3 are mounted, to humidify the rooms.
  • the present invention provides a cooling/heating air conditioner with a humidifying function, which is designed to generate steam by use of condensed water produced during cooling/heating operations and to supply the steam into a desired room in which a heating operation is carried out. Consequently, the present invention has the effect of realizing more pleasant air conditioning environment in a heated room that may be easily dried, and of achieving effective utilization of the condensed water.
US11/316,987 2004-12-28 2005-12-27 Cooling/heating air conditioner with humidifying function Abandoned US20060156752A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040113569A KR100657461B1 (ko) 2004-12-28 2004-12-28 가습 기능을 갖는 냉난방 공기 조화기
KR2004-0113569 2004-12-28

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US20060156752A1 true US20060156752A1 (en) 2006-07-20

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US (1) US20060156752A1 (ko)
EP (1) EP1679476B1 (ko)
KR (1) KR100657461B1 (ko)
CN (1) CN1796902A (ko)
DE (1) DE602005005777T2 (ko)

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US20080028773A1 (en) * 2006-08-03 2008-02-07 Lg Electronics Inc. Air conditioner and controlling method thereof
US20080173723A1 (en) * 2006-07-21 2008-07-24 Igor Zhadanovsky Steam-based hvac system
US20130263956A1 (en) * 2010-12-14 2013-10-10 Siemens Aktiengesellschaft Vehicle with water supply and cooling system
CN107477673A (zh) * 2017-08-14 2017-12-15 珠海格力电器股份有限公司 加湿器供水预处理装置和机房空调
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CN101392968B (zh) * 2007-09-20 2011-01-05 无锡同方人工环境有限公司 一种大容量多联式空调/热泵机组
CN102410582A (zh) * 2011-11-07 2012-04-11 太仓新凯裕电子科技有限公司 空调系统
CN104406321B (zh) * 2014-11-28 2016-09-21 烟台大学 一种供热加湿、供冷一体热泵装置
CN105241120A (zh) * 2015-10-29 2016-01-13 合肥天鹅制冷科技有限公司 空调、冷干和空气制水一体机
CN105698290B (zh) * 2016-03-16 2018-12-18 广东美的制冷设备有限公司 一种利用冷凝水加湿的空调系统
CN107906632B (zh) * 2017-10-09 2023-07-21 珠海格力电器股份有限公司 空调及加湿控制方法
CN108692449A (zh) * 2018-07-26 2018-10-23 珠海格力电器股份有限公司 冷凝水回收装置及空调
KR102028943B1 (ko) * 2019-02-20 2019-10-08 장현수 미세먼지 제거 등 공기재생 기능을 구비한 공기처리기
CN109974123A (zh) * 2019-04-08 2019-07-05 广东美的暖通设备有限公司 多联式空调系统
WO2020207147A1 (zh) * 2019-04-08 2020-10-15 广东美的暖通设备有限公司 空气调节装置
CN109974124A (zh) * 2019-04-08 2019-07-05 广东美的暖通设备有限公司 加湿装置和多联式空调系统
CN111473585A (zh) * 2020-04-29 2020-07-31 四川虹美智能科技有限公司 风冷冰箱及风冷冰箱的湿度控制方法
CN112254221A (zh) * 2020-09-18 2021-01-22 青岛海尔空调器有限总公司 具有加湿功能的空调器

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DE602005005777D1 (de) 2008-05-15
EP1679476B1 (en) 2008-04-02
CN1796902A (zh) 2006-07-05
KR20060075022A (ko) 2006-07-04
KR100657461B1 (ko) 2006-12-14
EP1679476A1 (en) 2006-07-12
DE602005005777T2 (de) 2009-04-09

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