WO2015088225A1 - Dehumidifier - Google Patents

Dehumidifier Download PDF

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Publication number
WO2015088225A1
WO2015088225A1 PCT/KR2014/012078 KR2014012078W WO2015088225A1 WO 2015088225 A1 WO2015088225 A1 WO 2015088225A1 KR 2014012078 W KR2014012078 W KR 2014012078W WO 2015088225 A1 WO2015088225 A1 WO 2015088225A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
exchange
exchange part
refrigerant
air
Prior art date
Application number
PCT/KR2014/012078
Other languages
English (en)
French (fr)
Inventor
Jongchul Ha
Jiwon Chang
Yeol Lee
Hyunjong KIM
Original Assignee
Lg Electronics Inc.
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 Lg Electronics Inc. filed Critical Lg Electronics Inc.
Publication of WO2015088225A1 publication Critical patent/WO2015088225A1/en

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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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F24F3/153—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 with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F24F2003/144—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 by dehumidification only
    • 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
    • F25B2600/2513—Expansion valves

Definitions

  • the present disclosure relates to a dehumidifier.
  • a dehumidifier is a device in which humid air in an indoor space is suctioned into the dehumidifier to reduce humidity thereof while passing through a heat exchanger constituted by a condenser and evaporator through which a refrigerant flows, and then the dehumidified air is discharged again to the indoor space, thereby decreasing humidity in the indoor space.
  • the “Dehumidifier” is disclosed in Korean Patent Publication No. 2008-0076658 that is a prior document.
  • air suctioned through a suction part is dehumidified by an evaporator and then heated while passing again through a condenser. Then, the heated air having low relative humidity is supplied into the indoor space through a discharge part.
  • the dehumidified air since the dehumidified air is discharged after passing through the condenser, the dehumidified air is heated while passing through the condenser, and thus the heated air is discharged to cause user’s emotional dissatisfaction.
  • Embodiments provide a dehumidifier in which dehumidified air is discharged in a cooled state to minimize user’s emotional dissatisfaction.
  • a dehumidifier includes: a main body having a suction part into which air is suctioned and a discharge part through which the air is discharged; a compressor disposed in the main body to compress a refrigerant; a second heat-exchange part that receives the compressed refrigerant from the compressor; and first and third heat-exchange parts disposed in the main body to receive the refrigerant condensed by the second heat-exchange part, wherein the air suctioned through the suction part successively passes through the first, second, and third heat-exchange parts.
  • a dehumidifier including: a suction part into which air is suctioned; a plurality of heat-exchange parts through which the air suctioned through the suction part passes; and a discharge part through which the air passing through the plurality of heat-exchange parts is discharged, wherein the plurality of heat-exchange parts include: a second heat-exchange part acting as a condenser; and first and third heat-exchange parts each of which acts as an evaporator, wherein the second heat-exchange part is disposed between the first heat-exchange part and the third heat-exchange part.
  • the dehumidified air is cooled and discharged from the main body through the discharge part, the user may feel less unpleasant to minimize emotional dissatisfaction.
  • Fig. 1 is schematic view of an inner configuration of a dehumidifier according to a first embodiment.
  • Fig. 2 is a view of the dehumidifier according to a first embodiment.
  • Fig. 3 is a view illustrating a flow of a refrigerant when the dehumidifier is operated according to a first embodiment.
  • Fig. 4 is schematic view of an inner configuration of a dehumidifier according to a second embodiment.
  • Fig. 1 is schematic view of an inner configuration of a dehumidifier according to a first embodiment
  • Fig. 2 is a view of the dehumidifier according to a first embodiment.
  • a dehumidifier 1 may include a main body 10 defining an outer appearance thereof.
  • the main body 10 may include a suction part 102 for suctioning air, a discharge part 104 for discharging the air, and a fan 60 for allowing the air to flow.
  • the main body 10 may further include a compressor 11 for compressing a refrigerant, a heat exchanger 20 for heat-exchanging the refrigerant flowing therethrough with the air, and an expansion device 30 for expanding the refrigerant.
  • the heat exchanger 20 includes a plurality of heat-exchange parts.
  • a portion of the heat-exchange parts may act as a condenser, and the other portion of the heat-exchange parts may act as an evaporator.
  • the plurality of heat-exchange parts constituting the heat exchanger 20 may include a first heat-exchange part 21, a second heat-exchange part 22, and a third heat-exchange part 23.
  • the plurality of heat-exchange parts 21, 22, and 23 are integrally formed to constitute one heat exchanger 20.
  • the plurality of heat-exchange parts 21, 22, and 23 may be distinguished from each other according to a flow of the refrigerant.
  • the plurality of heat-exchange parts 21, 22, and 23 may be provided as separated modules and then be coupled to each other to constitute one heat exchanger 20.
  • the plurality of heat-exchange parts 21, 22, and 23 may be provided as separated modules and then independently disposed in the main body 10.
  • the main body 10 substantially includes three heat exchangers.
  • the plurality of heat-exchange parts 21, 22 and 23 may be in contact with each other or spaced a predetermined distance apart from each other.
  • the second heat-exchange part 22 may be disposed between the first heat-exchange part 21 and the third heat-exchange part 23.
  • the second heat-exchange part 22 is disposed at a downstream side of the first heat-exchange part 21 with respect to a flow of the air.
  • the third heat-exchange part 23 is disposed at a downstream side of the second heat-exchange part 22.
  • the discharge part 104 is defined at a downstream side of the third heat-exchange part 23. That is, since the first to third heat-exchange parts 21, 22, and 23 are disposed in series with respect to a flow direction of the air, the air successively flows through the first, second, and third heat-exchange parts 21, 22, and 23 and then is discharged outside the main body 10 through the discharge part 104.
  • the fan 60 is disposed at an upstream side of the first heat-exchange part 21 in Fig. 2, the present disclosure is not limited thereto.
  • the fan 60 may be disposed at the downstream side of the third heat-exchange part 23.
  • the compressor 11 may be connected to the second heat-exchange part 22 by a first tube 41.
  • the second heat-exchange part 22 may be connected to a second tube 43.
  • a valve 50 for controlling a flow direction of the refrigerant may be disposed in the second tube 43.
  • the valve 50 may be a three-way valve, the present disclosure is not limited thereto.
  • a first connection tube 45 and a second connection tube 46 are connected to the valve 50.
  • the first connection tube 45 is connected to the first heat-exchange part 21, and the second connection tube 46 is connected to the third heat-exchange part 23.
  • the refrigerant may flow into one of the first heat-exchange part 21 and the third heat-exchange part 23 or may flow into each of the first heat-exchange part 21 and the third heat-exchange part 23 by the valve 50.
  • a first expansion device 31 is disposed in the first connection tube 45, and a second expansion device is disposed in the second connection tube 45.
  • Each of the expansion devices 31 and 32 may be an electronic expansion valve (EEV) through which a flow rate and expansion degree of the refrigerant is controllable.
  • EEV electronic expansion valve
  • first and second connection tubes 45 and 46 are branched from the second tube 43, and a valve may be disposed in each of the first and second connection tubes 45 and 46.
  • the discharge tubes of the first heat-exchange part 21 and the third heat-exchange part 23 may be combined with each other and then connected to the compressor 11.
  • the main body 10 may further include a water tank 70 for storing condensate water.
  • the water tank 70 may be separably coupled to the main body 10.
  • the condensate water stored in the water tank 70 may be drained in a state where the water tank 70 is separated from the main body 10.
  • Fig. 3 is a view illustrating a flow of a refrigerant when the dehumidifier is operated according to a first embodiment.
  • the refrigerant compressed in the compressor 11 is introduced into the second heat-exchange part 22.
  • the refrigerant introduced into the second heat-exchange part 22 is condensed while flowing in the heat-exchange part 22.
  • the second heat-exchange part 22 acts as a condenser.
  • the refrigerant discharged from the second heat-exchange part 22 may flow along the second tube 43 and divided into the first and second connection tubes 45 and 46 by the valve 50.
  • the refrigerant flowing through the each of the connection tubes 45 and 46 is expanded by the each of the expansion devices 31 and 32.
  • the refrigerant expanded by the each of the expansion devices 31 and 32 may be introduced into the compressor 11 after being evaporated while flowing in the first and third heat-exchange parts 21 and 23.
  • the first and third heat-exchange parts 21 and 23 act as an evaporator in the cooling mode.
  • the expansion devices 31 and 32 may have opening degrees different from each other so that an evaporation temperature of the first heat-exchange part 21 is different from that of the third heat-exchange part 23.
  • each of the first and third heat-exchange parts 21 and 23 may act as an evaporator.
  • each of the expansion devices 31 and 32 may be adjusted in opening degree so that the evaporation temperature of the first heat-exchange part 21 is less than that of the third heat exchanger 23. That is, the second expansion device 32 has an opening degree less than that of the first expansion device 31.
  • the refrigerant expanded by the second expansion device 32 has a temperature less than that of the refrigerant expanded by the first expansion device 31, and also the refrigerant flowing into the third heat-exchange part 23 has a flow rate less than that of the refrigerant flowing into the first heat-exchange part 21.
  • the evaporation temperature of the third heat-exchange part 23 is less than that of the first heat-exchange part 21.
  • the air blown by the fan 60 is dehumidified while passing through the first heat-exchange part 21, and then is heated while passing through the second heat-exchange part 22. Then, the heated air is cooled while the passing through the third heat-exchange part 23.
  • the dehumidified air is cooled and discharged from the main body 10 through the discharge part 104, the user may feel less unpleasant to minimize emotional dissatisfaction.
  • the evaporation temperature of the third heat-exchange part may be below zero.
  • energy efficiency may be improved through ice storage effects, and also cooling effects may be obtained.
  • an operation mode of the dehumidifier includes a first mode in which air cooled by the third heat-exchange part is discharged and a second mode in which air that is not cooled by the third heat-exchange part is discharged.
  • the first or second mode may be selected by the user.
  • the valve may be controlled to allow the refrigerant to flow only into the first connection tube.
  • Fig. 4 is schematic view of an inner configuration of a dehumidifier according to a second embodiment.
  • the current embodiment is the same as the first embodiment except for the heat exchanger. Thus, only specific portions of the current embodiment will be described below.
  • a heat exchanger 20 may include first, second, and third heat-exchange parts 21, 22, and 23.
  • first to third heat-exchange parts 21, 22, and 23 may have the same function as those of the first embodiment, except for positions thereof.
  • the second and third heat-exchange parts 22 and 23 may be disposed at a downstream side of the first heat-exchange part 21. At least one portion of the third heat-exchange part 22 may be disposed above the second heat-exchange part 23.
  • the at least one portion of the third heat-exchange part 23 may vertically overlap the second heat-exchange part 22 in Fig. 4.
  • the at least one portion of the third heat-exchange part 23 may be disposed at a downstream side of the second heat-exchange part 22. That is, the at least one portion of the third heat-exchange part 23 may horizontally overlap the second heat-exchange part 22 in Fig. 4.
  • the condensate water generated in the third heat-exchange part while the third heat-exchange part 23 acts as an evaporator flows down into the second heat-exchange part 22, and thus the second heat-exchange part 22 acting as the condenser may be improved in condensation performance.
  • the valve controls the flow of the refrigerant in the above embodiments
  • the valve may be omitted.
  • the first and second expansion device may control the flow rate of the refrigerant. That is, in the first mode, each of the expansion devices may be controlled to have an opening degree of 0° or more. In the second mode, the second expansion device may be controlled to have an opening degree of 0°.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drying Of Gases (AREA)
PCT/KR2014/012078 2013-12-10 2014-12-09 Dehumidifier WO2015088225A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0153032 2013-12-10
KR1020130153032A KR102194676B1 (ko) 2013-12-10 2013-12-10 제습기

Publications (1)

Publication Number Publication Date
WO2015088225A1 true WO2015088225A1 (en) 2015-06-18

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ID=53270779

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/012078 WO2015088225A1 (en) 2013-12-10 2014-12-09 Dehumidifier

Country Status (4)

Country Link
US (1) US20150159920A1 (zh)
KR (1) KR102194676B1 (zh)
CN (1) CN104697047A (zh)
WO (1) WO2015088225A1 (zh)

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CN106288474A (zh) * 2016-10-21 2017-01-04 Tcl德龙家用电器（中山）有限公司 移动空调器组件、移动空调器及控制方法
CN110337320B (zh) * 2017-02-23 2022-06-17 三菱电机株式会社 除湿机
US10168058B2 (en) * 2017-03-16 2019-01-01 Therma-Stor LLC Dehumidifier with secondary evaporator and condenser coils
US11668476B2 (en) 2017-03-16 2023-06-06 Therma-Stor LLC Heat modulation dehumidification system
US11573016B2 (en) 2017-03-16 2023-02-07 Therma-Stor LLC Water cooled dehumidification system
US11573015B2 (en) 2017-03-16 2023-02-07 Therma-Stor LLC Split dehumidification system with secondary evaporator and condenser coils
US10955148B2 (en) 2017-03-16 2021-03-23 Therma-Stor, Llc Split dehumidification system with secondary evaporator and condenser coils
US10845069B2 (en) 2017-03-16 2020-11-24 Therma-Stor LLC Dehumidifier with multi-circuited evaporator and secondary condenser coils
US10921002B2 (en) 2017-03-16 2021-02-16 Therma-Stor LLC Dehumidifier with secondary evaporator and condenser coils in a single coil pack
CN110486860A (zh) * 2019-08-20 2019-11-22 宁波瑞丰模具科技有限公司 一种预冷装置除湿机
US11262112B2 (en) 2019-12-02 2022-03-01 Johnson Controls Technology Company Condenser coil arrangement
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Publication number Publication date
KR102194676B1 (ko) 2020-12-24
US20150159920A1 (en) 2015-06-11
CN104697047A (zh) 2015-06-10
KR20150067526A (ko) 2015-06-18

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