WO2017138110A1 - Dispositif de climatisation - Google Patents

Dispositif de climatisation Download PDF

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Publication number
WO2017138110A1
WO2017138110A1 PCT/JP2016/053944 JP2016053944W WO2017138110A1 WO 2017138110 A1 WO2017138110 A1 WO 2017138110A1 JP 2016053944 W JP2016053944 W JP 2016053944W WO 2017138110 A1 WO2017138110 A1 WO 2017138110A1
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WO
WIPO (PCT)
Prior art keywords
evaporator
air
suction port
bypass
circulation circuit
Prior art date
Application number
PCT/JP2016/053944
Other languages
English (en)
Japanese (ja)
Inventor
一平 篠田
和彦 河合
Original Assignee
三菱電機株式会社
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 filed Critical 三菱電機株式会社
Priority to GB1810610.4A priority Critical patent/GB2561993A/en
Priority to PCT/JP2016/053944 priority patent/WO2017138110A1/fr
Priority to JP2017566460A priority patent/JPWO2017138110A1/ja
Publication of WO2017138110A1 publication Critical patent/WO2017138110A1/fr

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Classifications

    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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 an air conditioner.
  • the natural circulation circuit that does not have forced power does not allow the refrigerant to circulate naturally and cannot be cooled under conditions where the temperature difference between the indoor and outdoor environments cannot be secured.
  • the evaporator of the natural circulation circuit contributes to cooling of the air. It becomes just a wind path resistance. Compared with the case where each evaporator is provided with a fan, there is a problem in that the fan load of the fan motor is increased.
  • the heat generation of the fan motor also increases due to the increase in the fan motor's ventilation load, and the air conditioning apparatus in which the motor is arranged in the indoor unit has a problem of reducing the cooling capacity.
  • the present invention has been made in order to solve the above-described problems, and provides an air conditioner in which cooling capacity is improved and power consumption is reduced by reducing air path resistance.
  • the first circulation circuit in which the first condenser and the first evaporator are connected via a pipe and conveys the refrigerant by natural refrigerant circulation and the first circulation circuit are: A second circulation circuit configured independently, wherein a compressor, a second condenser, a throttling device, and a second evaporator are connected via a pipe; and the first evaporator and the second evaporation
  • the case is disposed upstream of the second evaporator, and the case further includes the suction Separately, a bypass suction port for sucking air, a bypass air passage connecting the bypass suction port and the outlet and joining the main air passage from between the first evaporator and the second evaporator, Is formed.
  • the air conditioner is provided with a bypass air path that bypasses the first evaporator disposed upstream of the second evaporator, so that one evaporator is provided for both evaporators. Even when air is supplied by a fan, when the natural circulation circuit is not functioning, an air path with a low air path resistance can be used. Therefore, the load on the shared fan is reduced, and the room can be efficiently cooled with respect to power consumption.
  • FIG. 1 is a configuration diagram showing an air conditioner according to Embodiments 1 to 5 of the present invention. It is a side view of the composition outline (front suction method) of the indoor unit concerning Embodiment 1 of the present invention. It is a side view of the composition outline (duct suction method) of the indoor unit concerning Embodiment 1 of the present invention.
  • 6 is an overview of an evaporator section (opening / closing door open state) of the first circulation circuit according to Embodiments 2 to 5 of the present invention.
  • FIG. 6 is an overview of an evaporator section of the first circulation circuit according to Embodiments 2 to 5 of the present invention (open / close door closed state).
  • FIG. 6 is an evaporator perspective view (open / closed door open state) of the first circulation circuit according to the second to fifth embodiments of the present invention. It is an opening / closing louver control flowchart concerning Embodiment 4 of the present invention.
  • the indoor space which is a space to be air-conditioned indicates, for example, a warehouse, a data center, a server room or a living space.
  • FIG. 1 is a configuration diagram showing an air conditioner according to Embodiments 1 to 5 of the present invention.
  • the air conditioning apparatus 1 is configured independently of the first circulation circuit 10 that transports the refrigerant by natural refrigerant circulation and the first circulation circuit 10, and forcibly conveys the refrigerant.
  • the first circulation circuit 10 is a refrigeration cycle in which a first condenser 11 and a first evaporator 12 are connected via a pipe.
  • a heat medium such as water may be enclosed instead of the refrigerant.
  • the second circulation circuit 20 is a refrigeration cycle in which a compressor 21, a second condenser 22, an expansion device 23, and a second evaporator 24 are connected via a pipe.
  • a first condenser 11 is mounted on the first outdoor unit 3.
  • a compressor 21, a second condenser 22, and a throttle device 23 are mounted in series on the second outdoor unit 4.
  • the indoor unit 2 is equipped with a first evaporator 12, a second evaporator 24, and a common fan 31.
  • the compressor 21 sucks refrigerant and compresses the refrigerant to bring it into a high temperature / high pressure state.
  • it may be of a scroll type, in which the rotation speed is controlled by an inverter and the capacity is controlled.
  • the first condenser 11, the second condenser 22, the first evaporator 12, and the second evaporator 24 are composed of, for example, a fin tube type heat exchanger and exchange heat between air and the refrigerant. Is what you do.
  • the first condenser 11 and the second condenser 22 are each provided with an outdoor fan for supplying air.
  • the outdoor fan is composed of, for example, a propeller fan.
  • the condenser performs heat exchange between the air supplied from the outdoor fan and the refrigerant, and condenses and liquefies the refrigerant.
  • the evaporator exchanges heat between the air supplied by the common fan 31 and the refrigerant to evaporate the refrigerant.
  • a case 40 that is a housing of the indoor unit 2 includes a first case 40 a that houses the first evaporator 12, and a second case 40 b that houses the second evaporator 24 and the common fan 31.
  • the first case 40a and the second case 40b are connected to each other, and share a suction port 40c for sucking air from the indoor space 5 to be cooled and a blower outlet 40d for blowing the cooled air to the indoor space 5.
  • the second evaporator 24 is installed downstream of the first evaporator 12 in the air flow.
  • the shared fan 31 is a shared fan that supplies air to the first circulation circuit 10 and the second circulation circuit 20.
  • the refrigerant in the first evaporator 12 evaporates by heat exchange with air to become a gas refrigerant and flows into the first condenser 11 through the pipe.
  • the gas refrigerant is condensed by heat exchange with the outside air supplied by the outdoor fan to become a liquid refrigerant.
  • This liquid refrigerant returns to the first evaporator 12 through the pipe by natural circulation due to the density difference with the gas refrigerant.
  • the refrigerant is heated to a high temperature and a high pressure by the compressor 21, discharged from the compressor 21, and flows into the second condenser 22.
  • the refrigerant flowing into the second condenser 22 is condensed and liquefied by exchanging heat with the air supplied from the outdoor fan.
  • the condensed and liquefied refrigerant flows into the expansion valve of the indoor unit 2 through the pipe.
  • the refrigerant that has flowed into the indoor expansion valve is decompressed and expanded to change into a low-temperature / low-pressure gas-liquid two-phase refrigerant of liquid and gas. This gas-liquid two-phase refrigerant flows into the second evaporator 24.
  • the gas-liquid two-phase refrigerant that has flowed into the second evaporator 24 exchanges heat with the air supplied from the shared fan 31 to be evaporated.
  • the evaporated gas refrigerant flows out of the second evaporator 24 and flows into the expansion device 23 of the second outdoor unit 4 through the pipe.
  • the refrigerant flowing into the expansion device 23 is depressurized and sucked into the compressor 21 again.
  • the air in the indoor space 5 flows into the indoor unit 2 from the suction port 40 c provided in the case 40 of the indoor unit 2 by the action of the shared fan 31.
  • the inflowed air is first arranged on the primary side (upstream side of the air flow).
  • Primary cooling is performed by the first evaporator 12.
  • the primary cooled air is cooled by the second evaporator 24 disposed on the secondary side (downstream side of the air flow), and is discharged into the indoor space 5 through the air outlet 40d provided in the case 40.
  • the shared fan 31 is provided downstream of the first evaporator 12.
  • the indoor unit 2 is equipped with a control device 60 composed of, for example, a microcomputer.
  • the control device 60 controls the opening degree of the indoor expansion valve, the rotation speed of the common fan 31, and the like based on the operation information (the temperature of the air-conditioning target air, the outside air temperature, the set temperature, the temperature of the refrigerant pipe, etc.)
  • the first outdoor unit 3 and the second outdoor unit 4 are each equipped with an outdoor control device, which is connected to the control device 60 of the indoor unit 2 through a transmission line or the like to transmit and receive information.
  • the outdoor control device acquires operation information from the control device 60, performs preset control on the compressor 21 and the outdoor fan based on the acquired operation information, and performs the rotational speed of the compressor 21 and the outdoor fan. Change the rotation speed.
  • the air conditioner 1 further includes an indoor sensor 62 that measures the temperature of the air in the indoor space 5, an outdoor sensor 61 that measures the outdoor air temperature, and the like. These temperature sensors are connected to the control device 60 and transmit measured information. To do.
  • FIG. 2 is a side view of the configuration outline (front suction method) of the indoor unit according to Embodiment 1 of the present invention.
  • a suction port 40c is formed on the suction surface on the upper side of the paper
  • a blower port 40d is formed on the outlet surface on the lower side of the paper.
  • the case 40 has a hollow box shape, in which the first evaporator 12 is located on the primary side close to the suction port 40c, and the second evaporator 24 is located on the primary evaporator 12 side. Is also arranged on the downstream secondary side.
  • the shared fan 31 is downstream of these evaporators and sends air to both.
  • the first evaporator 12 contributes less to the air cooling. Therefore, as shown in FIG. 2, in the configuration in which two evaporators share the suction port 40 c and the air outlet 40 d, the first evaporator 12 flows into the case 40 and flows toward the second evaporator 24. For me it is just a resistor. That is, air does not need to pass through the first evaporator 12.
  • a main air passage 45a connecting the suction port 40c and the air outlet 40d is indicated by an arrow.
  • the first evaporator 12 in the first circulation circuit 10 that does not have a power source.
  • the primary cooled air is sent to the second evaporator 24.
  • the air taken into the case 40 is sent along the main air passage 45a.
  • the case 40 is provided with a bypass suction port 40e that sucks air separately from the suction port 40c.
  • the bypass suction port 40 e is provided on the wall surface of the case 40 between the first evaporator 12 and the second evaporator 24.
  • the air flowing in from the bypass suction port 40e travels along the bypass air passage 45b, joins the main air passage 45a, passes through the second evaporator 24, and is blown out of the case 40 through the air outlet 40d.
  • the bypass air passage 45b is indicated by an arrow in FIG.
  • FIG. 3 is a side view of the configuration outline (duct suction method) of the indoor unit according to Embodiment 1 of the present invention.
  • FIG. 3 shows a mode in which the first evaporator 12 is installed inside the duct and connected to the primary side of the suction port 40 c of the case 40.
  • the suction port 40c is directly connected to the duct, the suction surface of the case 40 is enlarged, and a bypass suction port 40e is formed along with the suction port 40c in the enlarged portion. Therefore, as in FIG. 2, the air flowing in from the bypass suction port 40 e can bypass the first evaporator 12 and travel along the bypass air passage 45 b without passing through the first evaporator 12.
  • the air conditioner 1 includes the first circulation circuit in which the first condenser 11 and the first evaporator 12 are connected via a pipe and convey the refrigerant by natural refrigerant circulation. 10 and the first circulation circuit 10 are configured independently, and a second circulation in which the compressor 21, the second condenser 22, the expansion device 23, and the second evaporator 24 are connected via a pipe.
  • a hollow box-like case 40 having a blowout surface provided with a blowout port 40d and having a main air passage 45a connecting the suction port 40c and the blowout port 40d.
  • the second evaporator 24 has a first evaporation inside the case 40. 12 is disposed upstream of the second evaporator 24, and the case 40 is further connected to a bypass suction port 40e that sucks air separately from the suction port 40c, a bypass suction port 40e, and an outlet 40d.
  • a bypass air passage 45b that joins the main air passage 45a from between the first evaporator 12 and the second evaporator 24 is formed.
  • the air conditioner 1 is provided with a bypass air passage 45b that bypasses the first evaporator 12 disposed upstream of the second evaporator 24, so that both of the evaporators are identical. Even when air is supplied by one fan, when the natural circulation circuit is not functioning, it is possible to use an air path with low air path resistance. Therefore, the load on the shared fan is reduced, and the room can be efficiently cooled with respect to power consumption.
  • the bypass suction port 40 e may be provided in the case 40 at a position between the first evaporator 12 and the second evaporator 24. For this reason, the bypass air passage 45b can be provided regardless of the suction method, and the air passage resistance can be suppressed and efficient cooling can be performed.
  • the bypass suction port 40e may be provided on the suction surface side by side with the suction port 40c. For this reason, the bypass air passage 45b can be provided regardless of the suction method, and the air passage resistance can be suppressed and efficient cooling can be performed.
  • FIG. FIG. 4 is an overview of the evaporator section of the first circulation circuit according to the second to fifth embodiments of the present invention (open / closed door open state).
  • the case 40 is provided with an open / close door 51 for opening and closing the bypass suction port 40e.
  • a description of the same configuration as that of the first embodiment will be omitted, and only a different configuration will be described.
  • the case where the opening / closing door 51 is an opening / closing louver and is installed in the bypass suction port 40e will be described below.
  • the opening / closing louver is composed of a plurality of plate-like wing plates 51a, and the both ends of the louver shaft 51b are turned up and down around a bearing portion recessed in the bypass suction port 40e with the longitudinal direction of the wing plate 51a as an axis. Is pivotally supported.
  • FIG. 5 is an overview of the evaporator section of the first circulation circuit according to Embodiments 2 to 5 of the present invention (open / close door closed state).
  • the bypass suction port 40e can be closed by rotating the open / close louver to the closed state.
  • the open / close door 51 is closed, all air is taken into the indoor unit 2 from the suction port 40c, and the air flows through the main air passage 45a in the case 40, and the first evaporator. At 12, heat exchange is performed.
  • the refrigerant in the first circulation circuit 10 is not circulating, the air is drawn from the bypass suction port 40e through the bypass air passage 45b by rotating the open / close louver to be in the open state. Can do.
  • FIG. 6 is a perspective view of the evaporator section of the first circulation circuit according to the second to fifth embodiments of the present invention (open / close door open state).
  • FIG. 6 shows the first case 40a when the filter for capturing dust and the like is removed while covering the suction port 40c and the bypass suction port 40e.
  • the case 40 takes in air in the indoor space 5 to be air-conditioned through the bypass inlet 40e in addition to the inlet 40c.
  • the air conditioner 1 further includes the open / close door 51 that opens and closes the bypass suction port 40e.
  • the opening / closing louver can be opened to form the bypass air passage 45b that bypasses the first evaporator 12 and does not pass therethrough.
  • the main air passage 45a that passes through the first evaporator 12 can be formed by closing the open / close louver. From this, primary cooling is performed by the first circulation circuit 10 to suppress the power of the second circulation circuit 20 or the air path loss of the air passing through the case 40 is reduced according to the operation state. It is possible to use cooling with priority. Therefore, power consumption can be suppressed.
  • the air-conditioning apparatus 1 according to the second embodiment further includes an opening / closing drive unit 52 that opens and closes the opening / closing louver by rotating it with an electrical signal.
  • the opening / closing drive unit 52 is configured by, for example, a motor.
  • the motor is installed near the louver, and opens and closes the open / close louver by rotating the connected louver shaft 51b.
  • the control line of the motor is connected to the control board of the indoor unit 2 and is configured to be able to transmit signals with the control device 60 of the indoor unit 2.
  • the air conditioner 1 includes a remote controller for the indoor unit 2 for a user to input an operation command.
  • a light receiving unit that receives infrared signals is provided on the surface of the indoor unit 2.
  • the light receiving unit is connected to the control device 60 through a signal line. Accordingly, when a command for opening / closing the opening / closing door 51 is transmitted via the remote control, the light receiving unit installed in the indoor unit 2 receives the signal and sends the command to the control device 60.
  • the control device 60 sends an opening / closing command to the opening / closing drive unit 52, and the opening / closing drive unit 52 opens or closes the opening / closing door 51 in accordance with the command.
  • the air conditioner 1 further includes the opening / closing drive unit 52 that opens and closes the opening / closing door 51 with an electric signal. For this reason, it is not necessary to manually rotate the opening / closing louver, and the operation can be performed from the remote controller of the indoor unit 2, so that the operability for the user is improved. Moreover, even if it is the case of the large-sized indoor unit 2 or the ceiling-suspended indoor unit 2 which cannot be easily switched because the hand does not reach the open / close door 51 manually, the operation can be easily performed.
  • FIG. 7 is an open / close louver control flowchart according to Embodiment 4 of the present invention. Based on the indoor / outdoor temperature detected by the outdoor sensor 61 and the indoor sensor 62, the control device 60 determines the opening / closing timing of the opening / closing louver.
  • the control device 60 constantly acquires temperature information from the outdoor sensor 61 installed at the air inlet of the first outdoor unit 3 and the indoor sensor 62 installed near the inlet 40c of the indoor unit 2. .
  • the control device 60 calculates a temperature difference between the room temperature and the outside air temperature by calculation based on the acquired temperature information.
  • the control device 60 determines whether or not the condition that the calculated temperature difference is less than the specified temperature difference is satisfied (S101). Since the refrigerant is not circulating, it is determined that the opening / closing louver needs to be opened (S102).
  • the control device 60 determines whether or not a condition that the calculated temperature difference is equal to or larger than the set value and less than the second set value is satisfied ( S103). If the condition is satisfied, the control device 60 holds the open / close state immediately before the open / close louver (S104). On the other hand, when the condition is not satisfied in S103, it is determined that the refrigerant in the first circulation circuit 10 is circulated because the temperature difference between the room and the outside is large, and the open / close louver needs to be closed (S105). Then, the control device 60 sends a signal corresponding to the determination result to the opening / closing drive unit 52, and the opening / closing drive unit 52 drives the opening / closing louver to open / close according to the signal received from the control device 60.
  • the air conditioner 1 can perform a stable cooling operation without waste of control.
  • the air-conditioning apparatus 1 uses the outdoor sensor 61 that detects the outdoor temperature, the indoor sensor 62 that detects the indoor temperature, and the results detected by the outdoor sensor 61 and the indoor sensor 62.
  • the control device 60 further determines whether or not the opening / closing door 51 needs to be opened and closed based on the determination result, and controls the opening / closing drive unit 52 according to the determination result.
  • control apparatus 60 performs determination based on the information acquired from the indoor sensor 62 and the outdoor sensor 61, it can control so that switching of an open / close state is not frequently performed by a slight change in temperature difference or noise.
  • Embodiment 5 the change in the air flow before and after the switching of the open / close state of the open / close louver is suppressed.
  • inverter control is performed on the fan motor of the common fan 31 of the indoor unit 2
  • the opening / closing state of the opening / closing louver is detected and the inverter frequency of the fan motor is changed.
  • the inverter 63 is installed in the indoor unit 2 and is connected to the control device 60 via a signal line.
  • the control device 60 acquires information from the opening / closing drive unit 52 and detects the opening / closing state of the opening / closing door 51.
  • the opening / closing drive unit 52 may notify the control device 60 of the opening / closing state at a timing when the opening / closing state of the opening / closing drive unit 52 is changed manually or by a remote controller.
  • the control device 60 controls the rotation speed of the shared fan 31 based on the operation information. If the rotation speed of the common fan 31 is the same when the open / close louver is open and when the open / close louver is closed, the air flow pressure loss of the formed air passage is different, and the air volume is also different. For example, if the inverter frequency is 45 Hz in the closed state, the air volume increases when the same frequency is set and operated in the open state. Therefore, when the open state is detected, the control device 60 lowers the inverter frequency to 43 Hz and controls the rotation speed of the common fan 31 so that the air volume does not change before and after switching the open / close state of the open / close louver.
  • the control device 60 may store the inverter frequency at which the airflow is equal between the open state and the closed state of the door 51. Specifically, the inverter frequency in the open state in which substantially the same air volume can be obtained with respect to the inverter frequency in the closed state is determined in advance by experiments or the like, and the relationship between the inverter frequency in the open state and the inverter frequency in the closed state Is stored in the control device 60. Then, the control device 60 calculates the inverter frequency so that the air volume is constant before and after the opening / closing operation when the opening / closing state is detected, and sets the calculated frequency in the inverter 63 to thereby share the fan. The rotational speed of 31 is controlled.
  • the air conditioner 1 further includes the inverter 63 that controls the operation of the shared fan 31, and the control device 60 detects the open / closed state of the open / close door 51 and responds to the detection result.
  • the frequency of the inverter 63 is changed.
  • the air conditioner 1 can exhibit a stable cooling capacity while suppressing a sudden change in air conditioning. Even when the refrigerant in the first circulation circuit 10 is not circulated, the airflow resistance is suppressed by the bypass airflow 45b, and the control device 60 performs control to keep the airflow constant so that the common fan 31 Power can be reduced. Therefore, the power consumption of the motor that drives the shared fan 31 can be reduced. Moreover, since the power of the shared fan 31 can be reduced and the motor heat generation is also suppressed, the indoor space 5 is not warmed by the heat generation. That is, a decrease in cooling capacity can be suppressed.
  • the air volume is constant, the operating conditions are not changed except that the power of the shared fan 31 is suppressed. Therefore, the influence on the operation accompanying the opening / closing switching of the opening / closing door 51 can be suppressed, and the other cooling operation can be easily controlled.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

L'invention concerne un dispositif de climatisation comprenant : un premier circuit de circulation comportant un premier condenseur et un premier évaporateur raccordés par l'intermédiaire d'une tuyauterie, et transportant un fluide frigorigène par circulation naturelle du fluide frigorigène ; un second circuit de circulation conçu pour être indépendant du premier circuit de circulation et comportant un compresseur, un second condenseur, un dispositif d'étranglement et un second évaporateur raccordés par l'intermédiaire d'une tuyauterie ; un ventilateur partagé alimentant en air le premier évaporateur et le second évaporateur ; et un carter creux comprenant une face d'admission munie d'une entrée pour aspirer de l'air et une face de soufflage en aval de l'entrée et munie d'une sortie pour souffler de l'air, et formant un canal d'air principal pour relier l'entrée et la sortie. Le premier évaporateur et le second évaporateur sont disposés à l'intérieur du carter de manière que le premier évaporateur soit placé en amont du second évaporateur. Le carter comporte en outre une entrée de dérivation destinée à aspirer de l'air séparément de l'entrée et un canal d'air de dérivation reliant l'entrée de dérivation et la sortie et se fusionnant avec le canal d'air principal entre le premier évaporateur et le second évaporateur.
PCT/JP2016/053944 2016-02-10 2016-02-10 Dispositif de climatisation WO2017138110A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1810610.4A GB2561993A (en) 2016-02-10 2016-02-10 Air conditioning device
PCT/JP2016/053944 WO2017138110A1 (fr) 2016-02-10 2016-02-10 Dispositif de climatisation
JP2017566460A JPWO2017138110A1 (ja) 2016-02-10 2016-02-10 空気調和装置

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Application Number Priority Date Filing Date Title
PCT/JP2016/053944 WO2017138110A1 (fr) 2016-02-10 2016-02-10 Dispositif de climatisation

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WO2017138110A1 true WO2017138110A1 (fr) 2017-08-17

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GB (1) GB2561993A (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114484590A (zh) * 2020-10-23 2022-05-13 广州联动万物科技有限公司 双进风空调的控制方法、双进风空调及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
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