WO2018055726A1 - Climatiseur du type suspendu au plafond - Google Patents

Climatiseur du type suspendu au plafond Download PDF

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Publication number
WO2018055726A1
WO2018055726A1 PCT/JP2016/078003 JP2016078003W WO2018055726A1 WO 2018055726 A1 WO2018055726 A1 WO 2018055726A1 JP 2016078003 W JP2016078003 W JP 2016078003W WO 2018055726 A1 WO2018055726 A1 WO 2018055726A1
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WO
WIPO (PCT)
Prior art keywords
load
heat exchanger
heat source
heat
side unit
Prior art date
Application number
PCT/JP2016/078003
Other languages
English (en)
Japanese (ja)
Inventor
杉本　猛
田口　晋也
▲高▼田　茂生
山口　敏明
恵司 井上
坂本　英仁
中村　博一
Original Assignee
三菱電機株式会社
三菱電機冷熱応用システム株式会社
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 三菱電機株式会社, 三菱電機冷熱応用システム株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2016/078003 priority Critical patent/WO2018055726A1/fr
Priority to JP2018540557A priority patent/JPWO2018055726A1/ja
Publication of WO2018055726A1 publication Critical patent/WO2018055726A1/fr

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • 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
    • 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
    • F24F13/32—Supports for air-conditioning, air-humidification or ventilation units

Definitions

  • the present invention relates to a ceiling-suspended air conditioner that is arranged behind the ceiling of a building and performs indoor air conditioning.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a ceiling-suspended air conditioner that can expand a maintenance range from the indoor side.
  • a ceiling-suspended air conditioner includes a load-side unit having a blower and a load-side heat exchanger housed in a housing, a load-side heat exchanger, a heat-source-side heat exchanger that constitutes a refrigeration cycle, and a compression
  • a heat source side unit having a machine, and the load side unit and the heat source side unit are connected and arranged in a direction parallel to the ceiling surface.
  • the range that can be maintained from the indoor side can be expanded, and the maintainability can be improved.
  • FIG. 1 is a perspective view showing the entirety of an air conditioner according to an embodiment of the present invention.
  • FIG. 2 is a configuration diagram showing an internal configuration of the air conditioner viewed from the direction A in FIG.
  • FIG. 3 is a configuration diagram showing an internal configuration of the load side unit viewed from the B direction in FIG. 1.
  • FIG. 4 is a configuration diagram showing an internal configuration of the heat source side unit viewed from the direction C in FIG.
  • the air conditioner 100 of the present embodiment is a ceiling cassette type ceiling-suspended air conditioner that is accommodated in a space behind the ceiling formed between the ceiling slab and the ceiling surface 50.
  • the air conditioner 100 is inserted from an indoor side into an attachment opening provided on the ceiling surface 50, and is suspended and fixed to the back of the ceiling via a suspension bolt or the like.
  • the air conditioner 100 is provided on a load side unit 10, a heat source side unit 20, a connecting member 101 that connects the load side unit 10 and the heat source side unit 20 in a direction parallel to the ceiling surface 50, and the ceiling surface 50 of the air conditioner 100.
  • Panel 102 is provided.
  • the load side unit 10 and the heat source side unit 20 are connected by a connecting member 101 in a direction parallel to the ceiling surface 50 and arranged behind the ceiling. More specifically, the load side housing 11 constituting the outline of the load side unit 10 is detachably coupled to the support member 103a near two corners by screws or the like, and each support member 103a is a screw or the like. Thus, the connecting member 101 is coupled. Further, the load-side housing 11 of the load-side unit 10 is detachably coupled to the support member 103b near the other two corners by screws or the like, and each support member 103b is coupled to the connecting member 101 by screws or the like. ing.
  • the heat source side unit 20 includes a bottom plate 21 and a partition plate 22 above the bottom plate 21.
  • a control device 27 and the like which will be described later are disposed, and on the upper surface of the partition plate 22, a compressor 23 and a heat source side heat exchanger 24 and the like which will be described later are disposed.
  • the bottom plate 21 and the partition plate 22 are detachably coupled to the support member 103b near the two corners by screws or the like. Further, the bottom plate 21 and the partition plate 22 are detachably coupled to the support member 103c near the other two corners by screws or the like, and each support member 103c is coupled to the connecting member 101 by screws or the like.
  • the load side unit 10 is coupled to the connection member 101 via the support member 103a and the support member 103b
  • the heat source side unit 20 is coupled to the connection member 101 via the support member 103b and the support member 103c.
  • the side unit 10 and the heat source side unit 20 are connected and arranged in a direction parallel to the ceiling surface 50.
  • the load side unit 10 and the heat source side unit 20 are detachably coupled to the support members 103a, 103b, and 103c, the load side unit 10 and the heat source side unit 20 can be detached from the back of the ceiling separately. .
  • the load side unit 10 is coupled to the connecting member 101 via the support members 103a and 103b.
  • the load side housing 11 and the connecting member 101 are detachably coupled directly with screws or the like. May be.
  • the heat source side unit 20 may include a heat source side housing that covers a side surface and an upper surface, and the heat source side housing and the support members 103b and 103c may be detachably coupled.
  • the load-side unit 10 includes a load-side casing 11 constituting an outer shell, a blower 12 accommodated in the load-side casing 11, a filter 13, a load-side heat exchanger 14, a load-side drain pan 15, a throttle device 16, wind A road guide 17 is provided.
  • An opening is formed in the lower surface of the load-side housing 11 and is covered with the panel 102.
  • the blower 12 takes in indoor air into the load-side unit 10 by rotational driving as indicated by solid arrows in FIG. 3 and supplies air that has been heat-exchanged with the load-side heat exchanger 14 into the room.
  • the blower 12 can be configured as, for example, a centrifugal fan such as a sirocco fan or a turbo fan, a cross flow fan, a mixed flow fan, or a propeller fan.
  • the filter 13 collects dust and the like contained in the air when the air taken into the load side unit 10 is passed.
  • the load-side heat exchanger 14 is an air-cooled heat exchanger that can exchange heat between the refrigerant flowing inside and the air taken in by the blower 12. In this Embodiment, as shown in FIG. 3, it is comprised by arrange
  • the load-side heat exchanger 14 functions as an evaporator during cooling to generate cooling air, and functions as a condenser during heating to generate heating air.
  • the load-side heat exchanger 14 is configured as a cross-fin type fin-and-tube heat exchanger or a plate fin-type heat exchanger composed of heat transfer tubes and a plurality of fins. In the present embodiment, the load-side heat exchanger 14 is configured by arranging two heat exchangers facing each other, but is integrated as a U-shaped or O-shaped heat exchanger. You may do it.
  • the load side drain pan 15 is provided below the load side heat exchanger 14 and receives drain water generated by condensation of moisture in the air in the load side heat exchanger 14.
  • the load side drain pan 15 is configured to be provided below the two load side heat exchangers 14 respectively.
  • the load side drain pan 15 is provided with a drain pump (not shown) for draining drain water to the outside of the load side unit 10.
  • the expansion device 16 expands and depressurizes the high-pressure liquid refrigerant and flows it into the evaporator.
  • the expansion device 16 is configured as, for example, a decompression device such as an expander that is a mechanical expansion valve, or a linear electronic expansion valve whose opening degree can be adjusted in multiple stages or continuously. Further, the expansion device 16 may be configured as a capillary tube.
  • the air path guide 17 is provided below the load side drain pan 15 and forms an air path so that the air taken in by the blower 12 passes through the filter 13 and the load side heat exchanger 14 and is supplied indoors. It is.
  • the heat source side unit 20 includes a bottom plate 21, a partition plate 22, a compressor 23, a heat source side heat exchanger 24, a four-way valve 25, a heat source side drain pan 26, and a control device 27.
  • the bottom plate 21 is provided in the lower part of the heat source unit 20, and the control device 27 is disposed on the upper surface. As shown in FIG. 4, the bottom plate 21 is provided with an inspection port 28 for maintenance of the control device 27 and software update from the indoor side, and the inspection port 28 is covered with an inspection lid 29 that can be opened and closed.
  • the partition plate 22 is provided above the bottom plate 21, and the compressor 23, the heat source side heat exchanger 24, and the four-way valve 25 are disposed on the upper surface.
  • Compressor 23 is a fluid machine that compresses sucked low-pressure refrigerant and discharges it as high-pressure refrigerant.
  • the compressor 23 is configured as, for example, a rotary compressor or a scroll compressor.
  • the compressor 23 may be comprised as a compressor with a fixed rotational frequency, for example, and may be comprised as a compressor which can control the rotational frequency carrying an inverter.
  • the heat source side heat exchanger 24 is configured as a water-cooled heat exchanger capable of exchanging heat between the refrigerant flowing inside and the heat medium.
  • the heat source side heat exchanger 24 functions as a condenser during cooling, and functions as an evaporator during heating.
  • the heat source side heat exchanger 24 is configured as, for example, a plate heat exchanger or a double tube heat exchanger.
  • a liquid state medium such as water or brine is used as the heat medium.
  • the four-way valve 25 is a flow path switching device for switching between a refrigerant flow during cooling and a refrigerant flow during heating.
  • the refrigerant flow during cooling and heating will be described later.
  • the heat source side drain pan 26 is provided below the heat source side heat exchanger 24, and receives drain water generated by condensation of moisture in the air in the heat source side heat exchanger 24 and dew condensation water on the pipe through which the heat medium flows. It is.
  • the heat source side drain pan 26 is connected to at least one load side drain pan 15 by a drain water pipe 30, and guides drain water received by the heat source side drain pan 26 to the load side drain pan 15.
  • the heat source side drain pan 26 may be disposed above the load side drain pan 15, and the positional relationship may be used, or a pump or the like may be used. good. By comprising in this way, the drain pump for draining the drain water which arose in the air conditioning apparatus 100 to the exterior of an apparatus can be made shared, and cost can be reduced.
  • the control device 27 is based on a control program installed in advance based on information and operation information from various other sensors (not shown) installed in the indoor temperature sensor and the air conditioner 100, and user setting information. Thus, the operation of the air conditioner 100 is commanded. For example, control such as rotation speed control of the blower 12, opening degree control of the expansion device 16, drive frequency control of the compressor 23, and switching control of the four-way valve 25 is performed.
  • the control device 27 is configured by, for example, hardware such as a circuit device that realizes such a function, or software executed on an arithmetic device such as a microcomputer or a CPU.
  • FIG. 5 is an external view of the air conditioner viewed from the direction D in FIG.
  • the panel 102 is a decorative panel that is attached to the ceiling surface 50 of the air conditioner 100, and is provided with a suction port 104 and a blower port 105.
  • the suction port 104 is configured as a rectangular opening, for example, and is provided along two opposing long sides on the panel 102.
  • the suction port 104 is configured to attract indoor air into the load side unit 10 by driving the blower 12.
  • the blower outlet 105 is configured as, for example, a rectangular opening, and is provided outside the suction inlet 104.
  • the blower outlet 105 is configured to supply the air heat-exchanged by the load-side heat exchanger 14 into the room.
  • the indoor air is sucked into the load side unit 10 from the suction port 104 of the panel 102 and guided through the filter 13 by the air path guide 17, and then is heated with the load side heat exchanger 14 and the heat. They are exchanged and blown out into the room from the blowout port 105.
  • the panel 102 is provided with two suction ports 104 and two air outlets 105, but for example, the structure may be such that one suction port 104 and one air outlet 105 are provided. It is good also as a structure which provided one suction inlet and one blower outlet in each edge
  • the panel 102 is configured to be removable from the ceiling surface 50.
  • the panel 102 is removed and the components in the load side unit 10 and the heat source side unit 20 are removed from the indoor side. Equipment maintenance can be performed.
  • the load side unit 10 and the heat source side unit 20 are detachably coupled to the support members 103a, 103b, and 103c, only the unit that requires maintenance is removed, and maintenance or replacement is performed. be able to.
  • FIG. 6 is a refrigerant circuit diagram of the air-conditioning apparatus according to the embodiment of the present invention.
  • the air conditioner 100 includes a refrigerant circuit 31 in which the compressor 23, the four-way valve 25, the heat source side heat exchanger 24, the expansion device 16, and the load side heat exchanger 14 are connected by a refrigerant pipe, and the refrigerant circulates inside. ing. More specifically, in the load side unit 10, the first piping port 32, the expansion device 16, the load side heat exchanger 14, and the second piping port 33 are connected in series.
  • the third piping port 34, the heat source side heat exchanger 24, and the four-way valve 25 are connected in series, and the other three connection ports of the four-way valve 25 are the discharge side of the compressor 23, It is connected to the suction side and the fourth piping port 35.
  • the first piping port 32 is connected to the third piping port 34 by a connection piping 36, and the second piping port 33 is connected to the fourth piping port 35 by a connection piping 37.
  • the first piping port 32 and the third piping port 34, and the second piping port 33 and the fourth piping port 35 are connected by flaring.
  • chlorofluorocarbon refrigerants for example, R32 refrigerant, R125, R134a of HFC refrigerant, R410A, R407c, R404A, etc. of these mixed refrigerants
  • HFO refrigerants eg, HFO-1234yf, HFO-1234ze (E), HFO-1234ze). (Z)
  • the refrigerant is used for a vapor compression heat pump such as a CO2 refrigerant, an HC refrigerant (for example, propane or isobutane refrigerant), an ammonia refrigerant, or a mixed refrigerant of the above refrigerants such as a mixed refrigerant of R32 and HFO-1234yf.
  • a vapor compression heat pump such as a CO2 refrigerant, an HC refrigerant (for example, propane or isobutane refrigerant), an ammonia refrigerant, or a mixed refrigerant of the above refrigerants such as a mixed refrigerant of R32 and HFO-1234yf.
  • a mixed refrigerant of the above refrigerants such as a mixed refrigerant of R32 and HFO-1234yf.
  • the heat source side heat exchanger 24 since the heat source side heat exchanger 24 is configured as a water-cooled heat exchanger, the heat source side heat exchanger 24 includes a heat medium circuit 41 for exchanging heat with the refrigerant in the refrigerant circuit 31.
  • the heat medium circuit 41 is disposed between the cooling tower installed outdoors, and the heat medium outlet side of the cooling tower and the heat medium inlet side of the heat source side heat exchanger 24.
  • a water-cooled pump is connected to the pipe.
  • the cooling tower is a heat exchange device that cools the heat medium by directly or indirectly contacting the air with the atmosphere.
  • the water-cooled pump is a fluid machine that sucks the heat medium from the cooling tower and press-fits the sucked heat medium into the heat source side heat exchanger 24.
  • the heat source side heat exchanger 24 By configuring the heat source side heat exchanger 24 as a water-cooled heat exchanger, the exhaust heat treatment can be easily performed in the cooling tower, and the air conditioner 100 needs to be provided with a duct or the like for performing the exhaust heat treatment. Disappear. Therefore, by configuring the heat source side heat exchanger 24 as a water-cooled heat exchanger, the configuration of the air conditioner 100 can be reduced in size and simplified. In addition, by configuring the heat source side heat exchanger 24 as a water-cooled heat exchanger, the heat island phenomenon can be suppressed because heat discharge to the atmosphere is minimized.
  • the heat source side heat exchanger 24 may comprise the heat source side heat exchanger 24 as an air-cooling type heat exchanger.
  • the heat source side heat exchanger 24 can be configured as, for example, a cross-fin type fin-and-tube heat exchanger including a heat transfer tube and a plurality of fins.
  • FIG. 7 is a refrigerant circuit diagram illustrating a refrigeration cycle during cooling of the air-conditioning apparatus according to the embodiment of the present invention.
  • FIG. 8 is a refrigerant circuit diagram illustrating a refrigeration cycle during heating of the air-conditioning apparatus according to Embodiment of the present invention.
  • the refrigerant flow during cooling and heating can be switched by the four-way valve 25.
  • the flow of the refrigerant in FIGS. 7 and 8 is indicated by a solid arrow, and the flow of the heat medium is indicated by a dotted arrow.
  • the gas-liquid two-phase refrigerant is evaporated by exchanging heat with air in the load-side heat exchanger 14.
  • the evaporated refrigerant passes through the fourth piping port 35 and the fourth piping port 35, enters the heat source unit 20, and is sucked into the compressor 23 through the four-way valve 25 and compressed again.
  • the interior of the room is cooled by causing the load-side heat exchanger 14 to function as an evaporator during cooling.
  • the condensed refrigerant is decompressed by the expansion device 16 to become a gas-liquid two-phase refrigerant, passes through the first piping port 32 and the third piping port 34 and enters the heat source side unit 20, and the heat source side heat exchanger 24. Flow into.
  • the refrigerant flowing into the heat source side heat exchanger 24 is evaporated by exchanging heat with the heat medium flowing through the heat medium circuit 41.
  • the evaporated refrigerant is sucked into the compressor 23 through the four-way valve 25 and compressed again. As described above, the interior of the room is heated by causing the load-side heat exchanger 14 to function as a condenser during heating.
  • the load side unit 10 and the heat source side unit 20 are connected and arranged in the direction parallel to the ceiling surface 50, the overall height of the device is higher than that of a conventional air conditioner configured as one unit. Can be configured low. Therefore, the freedom degree of arrangement
  • positioning of an air conditioning apparatus can be raised.
  • the heat source side unit 20 includes a bottom plate 21 having an inspection port 28, and a control device is arranged on the upper surface of the bottom plate 21, so that maintenance of the control device 27 and software update are performed through the inspection port 28 of the bottom plate 21. Can be done from the inside.
  • the heat source unit 20 includes a partition plate 22 above the bottom plate 21 and a compressor 23 is disposed on the top surface of the partition plate 22, the heat source side unit 20 is separated from the bottom plate 21 adjacent to the panel 102 that forms a boundary with the room. A space is created between the plates 22 so that the vibration of the compressor 23 is not easily transmitted to the panel 102. Therefore, noise in the room due to vibration of the compressor 23 can be reduced.
  • two connecting members 101 are provided along the long side of the air conditioner 100 to connect the load side unit 10 and the heat source side unit 20, but the load side unit 10 and the heat source side are connected. If it has the intensity
  • the expansion device 16 is provided in the load side unit 10, but may be provided in the heat source side unit 20, for example.
  • the heat source side unit 20 is configured to have openings on the side surfaces and the top surface, but may be configured to include a heat source side housing that covers the side surfaces and the top surface. By providing the housing that covers the compressor 23, noise generated from the compressor 23 can be reduced.
  • the drain water pipe 30 for connecting the load side drain pan 15 and the heat source side drain pan 26 is provided.
  • the condensed water received by the heat source side drain pan 26 is small, it is not necessary to provide the drain water pipe. Natural evaporation may be used.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

L'invention concerne un climatiseur du type suspendu au plafond permettant d'élargir la fourchette de réalisation d'entretien à partir du côté intérieur. Le climatiseur (100) comprend : une unité côté charge (10) comportant un échangeur de chaleur côté charge (14) et une soufflante (12) logées dans une enveloppe (11) côté charge ; et une unité côté source de chaleur (20) comportant un compresseur (23) et un échangeur de chaleur côté source de chaleur (24) constituant un cycle frigorifique avec l'échangeur de chaleur côté charge (14). L'unité côté charge (10) et l'unité côté source de chaleur (20) sont disposées de manière à être reliées dans la direction parallèle à une face de plafond (50).
PCT/JP2016/078003 2016-09-23 2016-09-23 Climatiseur du type suspendu au plafond WO2018055726A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/078003 WO2018055726A1 (fr) 2016-09-23 2016-09-23 Climatiseur du type suspendu au plafond
JP2018540557A JPWO2018055726A1 (ja) 2016-09-23 2016-09-23 天吊型空気調和装置

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Application Number Priority Date Filing Date Title
PCT/JP2016/078003 WO2018055726A1 (fr) 2016-09-23 2016-09-23 Climatiseur du type suspendu au plafond

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WO2018055726A1 true WO2018055726A1 (fr) 2018-03-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020003182A (ja) * 2018-06-29 2020-01-09 ダイキン工業株式会社 屋外空気調和装置
JP2020003181A (ja) * 2018-06-29 2020-01-09 ダイキン工業株式会社 屋外空気調和装置

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS59139830U (ja) * 1983-03-04 1984-09-18 日立冷熱株式会社 スポツト式エヤコン
JPS60156371U (ja) * 1984-03-27 1985-10-18 松下精工株式会社 空気調和機の圧縮機固定装置
JPH08312994A (ja) * 1995-05-18 1996-11-26 Hitachi Ltd 空気調和機
JPH09303815A (ja) * 1996-05-09 1997-11-28 Matsushita Refrig Co Ltd 空気調和機
JP2010101509A (ja) * 2008-10-21 2010-05-06 Toshiba Corp 温度調節装置
JP2011112341A (ja) * 2009-11-30 2011-06-09 Sanyo Electric Co Ltd 空気調和装置

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Publication number Priority date Publication date Assignee Title
JPS5096353U (fr) * 1973-12-30 1975-08-12
JPS53150053U (fr) * 1977-05-02 1978-11-25
JPH09105551A (ja) * 1995-10-09 1997-04-22 Hitachi Ltd 空気調和機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59139830U (ja) * 1983-03-04 1984-09-18 日立冷熱株式会社 スポツト式エヤコン
JPS60156371U (ja) * 1984-03-27 1985-10-18 松下精工株式会社 空気調和機の圧縮機固定装置
JPH08312994A (ja) * 1995-05-18 1996-11-26 Hitachi Ltd 空気調和機
JPH09303815A (ja) * 1996-05-09 1997-11-28 Matsushita Refrig Co Ltd 空気調和機
JP2010101509A (ja) * 2008-10-21 2010-05-06 Toshiba Corp 温度調節装置
JP2011112341A (ja) * 2009-11-30 2011-06-09 Sanyo Electric Co Ltd 空気調和装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020003182A (ja) * 2018-06-29 2020-01-09 ダイキン工業株式会社 屋外空気調和装置
JP2020003181A (ja) * 2018-06-29 2020-01-09 ダイキン工業株式会社 屋外空気調和装置
JP6990627B2 (ja) 2018-06-29 2022-01-12 ダイキン工業株式会社 屋外空気調和装置

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