US20170159964A1 - Ventilation device - Google Patents

Ventilation device Download PDF

Info

Publication number
US20170159964A1
US20170159964A1 US15/320,801 US201415320801A US2017159964A1 US 20170159964 A1 US20170159964 A1 US 20170159964A1 US 201415320801 A US201415320801 A US 201415320801A US 2017159964 A1 US2017159964 A1 US 2017159964A1
Authority
US
United States
Prior art keywords
air
humidity
indoor
ventilation device
outside
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US15/320,801
Other languages
English (en)
Inventor
Hidemoto Arai
Masami Yasuda
Masahiro Hasegawa
Fumio Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HASEGAWA, MASAHIRO, SAITO, FUMIO, ARAI, HIDEMOTO, YASUDA, MASAMI
Publication of US20170159964A1 publication Critical patent/US20170159964A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F24F11/70—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
    • F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F24F11/0015—
    • F24F11/008—
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F24F2011/0013—
    • F24F2011/0016—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F2012/007—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using a by-pass for bypassing the heat-exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F24F2110/22—Humidity of the outside air

Definitions

  • the present invention relates to a ventilation device.
  • Patent Literature 1 there has conventionally been an air conditioner that controls a compressor in an outdoor device by correcting the rotational speed of the compressor according to the difference between the detected indoor humidity and the indoor temperature during a dehumidifying operation in the air conditioner, that also controls an outdoor fan by correcting the rotational speed of the outdoor fan based on the difference between the detected room temperature and the set indoor temperature, and that performs a dehumidifying operation by alternately performing the operation of the compressor and the operation of the outdoor fan under the corrective control described above.
  • Patent Literature 2 there has been a ventilation air conditioning device including a temperature sensor that measures the outdoor-air temperature, a humidity sensor that measures the outdoor-air humidity, an air conditioning coil that heats the air to be supplied, and a control unit that controls the air conditioning coil based on the measurement results of the temperature sensor and the humidity sensor, in such a manner that the absolute humidity of the air to be supplied reaches a predetermined value.
  • Patent Literature 1 Japanese Patent No. 3720220
  • Patent Literature 2 International Publication No. 2012/077201
  • Patent Literature 1 does not take the outdoor temperature and humidity information, or an air conditioning load due to ventilation into account. Therefore, the overall air conditioning operation efficiency is not sufficiently considered. This technique in Patent Literature 1 is not sufficiently adequate for the total control in the air conditioner.
  • parameters for controlling the air conditioning coil are limited to the outside-air temperature and humidity. There is a case where at the start of operation, the humidity in the room is low, and it is therefore necessary to increase the amount of humidification. In that case, when limitations are imposed on the capacity of the air conditioning coil based on the outside-air temperature and humidity conditions, a considerable amount of time is required to bring the interior of the room into a comfortable humidity state. This impairs the comfort.
  • the present invention has been achieved to solve the above problems, and an object of the present invention is to provide a ventilation device that performs an air supply with an optimal amount of dehumidification at the time of introducing the outside air by ventilation, and that is capable of performing an operation that is less likely to cause a change in the indoor humidity.
  • a ventilation device including: a casing that includes an air-supply passage and an exhaust passage; an air-supply blower that is provided in the air-supply passage, and that blows outdoor air into the air-supply passage to form a supplied-air flow in a room; an exhaust blower that is provided in the exhaust passage, and that blows indoor air into the exhaust passage to form an exhaust-air flow to be discharged outside a room; a total heat exchanger that is located between the air-supply passage and the exhaust passage, and accommodated in the casing, and that performs total heat exchange between the supplied-air flow and the exhaust-air flow; an outside-air temperature sensor that measures a temperature of the outdoor air; an outside-air humidity sensor that measures a humidity of the outdoor air; an indoor humidity sensor that measures a humidity of the indoor air; a temperature regulating coil that is capable of changing a cooling capacity at multiple stages, and that dehumidifies
  • the ventilation device of the present invention an effect is obtained where it is possible to perform an air supply with an optimal amount of dehumidification at the time of introducing the outside air by ventilation, and that is capable of performing an operation that is less likely to cause a change in the indoor humidity.
  • FIG. 1 is a top perspective view illustrating a configuration of a ventilation device according to a first embodiment of the present invention.
  • FIG. 2 is a flowchart illustrating an operation flow of the ventilation device.
  • FIG. 3 is a flowchart illustrating a flow of initial determination control.
  • FIG. 4 is a flowchart illustrating an operation flow in steady operation control.
  • FIG. 5 is a time chart illustrating an example of an operation of the ventilation device according to the first embodiment.
  • FIG. 6 is a system diagram illustrating a configuration of a ventilation device according to a second embodiment and air conditioners.
  • FIG. 7 is a diagram illustrating a method for varying a high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken in the ventilation device according to the second embodiment.
  • FIG. 8 is a flowchart illustrating an operation flow of the ventilation device according to the second embodiment.
  • FIG. 9 is a time chart illustrating an example of an operation of the ventilation device according to the second embodiment.
  • FIG. 1 is a top perspective view illustrating a configuration of a ventilation device according to a first embodiment of the present invention.
  • a ventilation device 23 includes a body casing 1 , an exhaust blower 2 , an air-supply blower 3 , a total heat exchanger 4 , a temperature regulating coil 5 , a humidifying element 6 , an exhaust outlet 7 , an air-supply outlet 8 , an air-supply inlet 9 , an exhaust inlet 10 , an outside-air temperature sensor 11 , an outside-air humidity sensor 12 , a target indoor-humidity storage unit 13 , a control unit 14 , a remote controller 15 , an air-passage switching damper 16 , an indoor temperature sensor 17 , and an indoor humidity sensor 18 .
  • the air-supply outlet 8 and the exhaust inlet 10 are provided on the indoor side.
  • the exhaust outlet 7 and the air-supply inlet 9 are provided.
  • the ventilation device 23 has a box structure, and is covered with the body casing 1 .
  • an air-supply passage that communicates the air-supply inlet 9 on the outdoor side with the air-supply outlet 8 on the indoor side, and an exhaust passage that communicates the exhaust inlet 10 on the indoor side with the exhaust outlet 7 on the outdoor side, are formed.
  • the air-supply blower 3 is incorporated in the air-supply passage to form a supplied-air flow.
  • the exhaust blower 2 is incorporated in the exhaust passage to form an exhaust-air flow.
  • the total heat exchanger 4 is located between the air-supply passage and the exhaust passage. The total heat exchanger 4 continuously performs total heat exchange between a supplied-air flow and an exhaust-air flow to convert the outdoor air to the air to be supplied, and convert the indoor air to the air to be exhausted.
  • the humidifying element 6 is provided on the windward side of the air-supply outlet 8 within the air-supply passage.
  • the humidifying element 6 is provided on the windward side of the air-supply outlet 8 within the air-supply passage.
  • the temperature regulating coil 5 that dehumidifies the air to be supplied, and adjusts the amount of humidification.
  • a water supply pipe 19 is connected to the humidifying element 6 .
  • a water supply valve 20 is opened to supply water for humidification through the water supply pipe 19 to the humidifying element 6
  • the total heat is exchanged between a supplied-air flow and an exhaust-air flow, and therefore the total heat exchanger 4 can perform heat-exchange ventilation.
  • the air-passage switching damper 16 switches between an air passage 26 through which the air to be exhausted is delivered to the total heat exchanger 4 , and a bypass air passage 27 through which the air to be exhausted is delivered directly to the exhaust blower 2 not through the total heat exchanger 4 .
  • the air-passage switching damper 16 is closed, the exhaust air passes through the total heat exchanger 4 , and total heat exchange between the exhaust air and the supplied air is continuously performed.
  • the air-passage switching damper 16 is opened, the exhaust air passes through the bypass air passage 27 provided beside the total heat exchanger 4 , and is then converted to the air to be exhausted, and discharged outdoors by the exhaust blower 2 .
  • the ventilation device 23 When an outside-air temperature Toa is lower than the indoor temperature in the transitional season, the ventilation device 23 operates in such a manner as to open the air-passage switching damper 16 to deliver the indoor air to the bypass air passage 27 in order to perform cooling with the outside air by bypass ventilation. In the summer and winter season such as when an air conditioning load is generated, the ventilation device 23 operates in such a manner as to close the air-passage switching damper 16 to deliver the indoor air to the total heat exchanger 4 in order to perform total heat-exchange ventilation intended for the indoor-air heat recovery.
  • the control unit 14 controls the ventilation operation.
  • the remote controller 15 receives a switching operation of operating modes and the like.
  • the target indoor-humidity storage unit 13 has a target value of the indoor humidity stored therein.
  • the outside-air temperature sensor 11 measures the outside-air temperature Toa.
  • the outside-air humidity sensor 12 measures an outside-air humidity RHoa.
  • the outside-air temperature sensor 11 and the outside-air humidity sensor 12 are provided between the air-supply inlet 9 and the total heat exchanger 4 .
  • the indoor temperature sensor 17 measures an actual indoor temperature Tra, that is, the temperature in the room.
  • the indoor humidity sensor 18 measures an actual indoor humidity RHra, that is, the humidity in the room.
  • the indoor temperature sensor 17 and the indoor humidity sensor 18 are provided between the exhaust inlet 10 and the total heat exchanger 4 .
  • the control unit 14 determines the heating capacity of the temperature regulating coil 5 based on the temperature information that is a measurement result of the outside-air temperature Toa measured by the outside-air temperature sensor 11 , and based on the humidity information that is a measurement result of the outside-air humidity RHoa measured by the outside-air humidity sensor 12 .
  • the air having passed through the total heat exchanger 4 is heated by the temperature regulating coil 5 .
  • the air, having been heated by the temperature regulating coil 5 passes through the humidifying element 6 , and is humidified, and then supplied from the air-supply outlet 8 to the interior of the room. At this time, the amount of humidification and the discharge-air temperature are adjusted by the dehumidification amount in the temperature regulating coil 5 .
  • FIG. 2 is a flowchart illustrating an operation flow of the ventilation device.
  • the control unit 14 executes initial determination control for determining the initial operation state (Step S 1 ). Thereafter, the control unit 14 shifts to steady operation control (Step S 2 ). When there is no operation to finish the device operation (NO at Step S 3 ), the control unit 14 continues the steady operation control. When there is an operation to finish the device operation (YES at Step S 3 ), the control unit 14 finishes the operation of the ventilation device 23 .
  • FIG. 3 is a flowchart illustrating a flow of initial determination control.
  • the control unit 14 reads an actual measured indoor relative humidity RHra, and a target indoor relative humidity RHm (Step S 11 ).
  • the control unit 14 compares the actual measured indoor relative humidity RHra with the target indoor relative humidity RHm (Step S 12 ).
  • the control unit 14 operates the ventilation device 23 in a dehumidifying mode A (Step S 13 ).
  • the control unit 14 controls the temperature regulating coil 5 such that the dehumidification capacity becomes 100%.
  • the control unit 14 determines the humidity state in the room (Step S 14 ). The determination of the humidity state is performed based on whether the actual measured indoor relative humidity RHra is equal to or higher than a thermo-off humidity RHoff. When the actual measured indoor relative humidity RHra is equal to or higher than the thermo-off humidity RHoff, the control unit 14 determines that it is necessary to continue the dehumidifying operation. In order to prevent chattering, it is appropriate to set the thermo-off humidity RHoff to a value that is approximately 5% lower than the target indoor relative humidity RHm.
  • the control unit 14 When the air in the room is in a state where it needs to be dehumidified (YES at Step S 14 ), the control unit 14 operates the ventilation device 23 in a dehumidifying mode B (Step S 15 ). In the dehumidifying mode B, in order to maintain a constant indoor humidity, the control unit 14 automatically determines the capacity of the temperature regulating coil 5 , at which the humidity of the air supplied from the ventilation device 23 becomes the target indoor relative humidity RHm, based on the outside-air temperature Toa and the outside-air humidity RHoa.
  • Reference data in which a combination of the outside-air temperature Toa and the outside-air humidity RHoa is brought into correspondence with the capacity value of the temperature regulating coil 5 , that is a so-called map, is held in the control unit 14 . Based on the map, the control unit 14 decides the capacity value of the temperature regulating coil 5 .
  • the control unit 14 When the air in the room is not in a state where it needs to be dehumidified, that is, when the actual measured indoor relative humidity RHra is lower than the thermo-off humidity RHoff (NO at Step S 14 ), the control unit 14 operates the ventilation device 23 in a dehumidifying mode C (Step S 16 ). In the dehumidifying mode C, it is not necessary to promote dehumidification by using the temperature regulating coil 5 . In order to suppress the decrease in discharge-air temperature, and condensation on the discharge grille, which are caused by overcooling and dehumidification, the control unit 14 sets the operation capacity of the temperature regulating coil 5 to 0%, that is, the ventilation device 23 continues the dehumidifying operation in a thermo-off state.
  • the control unit 14 permits only a heat-exchange ventilation operation, and prohibits a bypass ventilation operation in which heat exchange is not performed. Therefore, the ventilation device 23 can suppress an abrupt decrease in humidity due to ventilation during the steady operation, maintain a high-humidity state at a constant value for a long time, and ensure the comfort.
  • FIG. 4 is a flowchart illustrating the operation flow in steady operation control.
  • the control unit 14 confirms which dehumidifying mode the ventilation device 23 is currently in (Step S 21 ).
  • the control unit 14 determines whether the actual measured indoor relative humidity RHra remains higher than the target indoor relative humidity RHm (Step S 22 ).
  • the control unit 14 causes the ventilation device 23 to continue the operation in the dehumidifying mode A in order to continue to decrease the indoor humidity (Step S 23 ).
  • the control unit 14 causes the ventilation device 23 to shift to the dehumidifying mode B (Step S 24 ). Due to this control, while monitoring the outside-air temperature Toa and the outside-air humidity RHoa, the control unit 14 operates the temperature regulating coil 5 at an optimal coil-capacity value, and causes the ventilation device 23 to continue the dehumidifying operation.
  • the control unit 14 determines whether the actual measured indoor relative humidity RHra remains lower than the thermo-off humidity RHoff (Step S 25 ). When the actual measured indoor relative humidity RHra remains lower than the thermo-off humidity RHoff (NO at Step S 25 ), the control unit 14 causes the ventilation device 23 to continue the operation in the dehumidifying mode C (Step S 26 ).
  • the control unit 14 causes the ventilation device 23 to shift to the dehumidifying mode B (Step S 24 ).
  • the control unit 14 determines whether the actual measured indoor relative humidity RHra is equal to or higher than an unlimited-capacity return humidity RHon (Step S 27 ).
  • the control unit 14 causes the ventilation device 23 to shift to the dehumidifying mode A (Step S 23 ).
  • the unlimited-capacity return humidity RHon it is appropriate to set the unlimited-capacity return humidity RHon to a value that is approximately 5% higher than the target indoor relative humidity RHm.
  • the control unit 14 determines whether the actual measured indoor relative humidity RHra is equal to or higher than the thermo-off humidity RHoff (Step S 28 ).
  • the control unit 14 maintains the operation of the ventilation device 23 in the dehumidifying mode B (Step S 24 ).
  • the control unit 14 causes the ventilation device 23 to shift to the dehumidifying mode C (Step S 26 ).
  • FIG. 5 is a time chart illustrating an example of the operation of the ventilation device according to the first embodiment.
  • the control unit 14 executes initial determination control. Because the actual measured indoor relative humidity RHra is higher than the target indoor relative humidity RHm, the control unit 14 causes the ventilation device 23 to start the dehumidifying operation in the humidifying mode A.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode A to the dehumidifying mode B.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode B to the dehumidifying mode C.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode C to the dehumidifying mode B.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode B to the dehumidifying mode A.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode A to the dehumidifying mode B.
  • the control unit 14 switches the dehumidifying mode of the ventilation device 23 from the dehumidifying mode B to the dehumidifying mode C.
  • the control unit 14 switches the dehumidifying mode of the ventilation device 23 from the dehumidifying mode B to the dehumidifying mode A. Due to this control, the ventilation device 23 performs an operation with the maximized amount of dehumidification in order to decrease the indoor humidity as quickly as possible.
  • the control unit 14 determines that the indoor humidity falls within the target range, and causes the ventilation device 23 to continue the energy-efficient humidifying operation in the dehumidifying mode B.
  • the target indoor relative humidity RHm and the actual measured indoor relative humidity RHra are measured and determined based on the relative humidity.
  • the control unit 14 calculates an absolute humidity from the actual measured indoor relative temperature Tra and the actual measured indoor relative humidity RHra, and compares the calculated absolute humidity with a target absolute humidity.
  • the control unit 14 decides the capacity value of the temperature regulating coil 5 based on the target indoor relative humidity RHm, the actual measured indoor relative humidity RHra, the outside-air temperature Toa, and the outside-air humidity RHoa, and the ventilation device 23 performs dehumidification while appropriately adjusting the dehumidification capacity. Due to this operation, while maintaining a constant humidity in the room, the control unit 14 switches over the dehumidifying mode when the actual measured indoor relative humidity RHra deviates from the target indoor relative humidity RHm, and can make the actual measured indoor relative humidity RHra closer to the target indoor relative humidity RHm as quickly as possible. This can improve the comfort in a shorter time.
  • a ventilation device has the same configuration as in the first embodiment. However, when the ventilation device is used in combination with an air conditioner, the target indoor relative humidity RHm for the ventilation device is changed based on the operation of the air conditioner.
  • FIG. 6 is a system diagram illustrating a configuration of the ventilation device according to the second embodiment and air conditioners.
  • Air conditioners 22 and the ventilation device 23 along with an outdoor device 21 constitute an air conditioning system 50 , and are connected to each other by a refrigerant pipe 24 and a communication line 25 .
  • the outdoor device 21 includes a pump that delivers a refrigerant to the refrigerant pipe 24 .
  • the outdoor device 21 further includes a fin that radiates heat absorbed by the refrigerant during the cooling operation in the air conditioners 22 and the ventilation device 23 .
  • Some of the air conditioners 22 include a remote controller 28 . An operation such as switching between on and off of the device operation, or switching over the operation mode, is performed through the remote controller 28 .
  • a high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken is set in the control unit 14 .
  • the high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken is set to a value between a normal target indoor relative humidity RHm and the thermo-off humidity RHoff. It is also possible that the high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken is set to a fixed value, or a value that varies according to the number of air conditioners that work in conjunction with each other.
  • FIG. 7 is a diagram illustrating a method for varying the high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken in the ventilation device according to the second embodiment. It is also possible that the value of the high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken is set so as to become smaller each time the number of the air conditioners 22 that work in conjunction with each other increases by 1, or is set so as to become smaller each time the number of the air conditioners 22 that work in conjunction with each other increases by 2 or more.
  • FIG. 8 is a flowchart illustrating the operation flow of the ventilation device according to the second embodiment.
  • the operation of the ventilation device 23 in initial determination control (Step S 1 ) is as described in the first embodiment.
  • the control unit 14 determines whether the air conditioners 22 that constitute the air conditioning system 50 perform a high sensible-heat ratio cooling operation during a dehumidifying operation (Step S 31 ).
  • the air conditioners 22 perform a high sensible-heat ratio cooling operation (YES at Step S 31 )
  • the dehumidification capacity of the air conditioners is decreased.
  • the control unit 14 changes the target indoor relative humidity RHm for the ventilation device 23 from the normal value to the high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken (Step S 32 ).
  • the control unit 14 sets the normal value of the target indoor relative humidity RHm as a target indoor humidity for the ventilation device 23 (Step S 33 ).
  • Step S 2 a steady operation control is executed (Step S 2 ).
  • the operation in the steady operation control is as described in the first embodiment.
  • it is returned to Step S 31 and it is determined whether the air conditioners 22 that constitute the air conditioning system 50 perform a high sensible-heat ratio cooling operation.
  • the operation is finished.
  • the air conditioners 22 do not perform the high sensible-heat ratio cooling operation, the normal value of the target indoor relative humidity RHm is set as a target indoor relative humidity, and therefore an energy-efficient dehumidifying operation is performed with the reduced capacity of the temperature regulating coil 5 .
  • FIG. 9 is a time chart illustrating an example of an operation of the ventilation device according to the second embodiment.
  • the control unit 14 executes the initial determination control, and causes the ventilation device 23 to start the operation in the humidifying mode A.
  • the control unit 14 causes the ventilation device 23 to shift to the operation in the dehumidifying mode B.
  • the control unit 14 causes the ventilation device 23 to shift to the operation in the dehumidifying mode C.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode C to the dehumidifying mode B.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode B to the dehumidifying mode A.
  • the control unit 14 causes the ventilation device 23 to shift from the dehumidifying mode A to the dehumidifying mode B.
  • the control unit 14 Based on whether the air conditioners 22 perform a high sensible-heat ratio cooling operation, the control unit 14 switches between the normal target indoor relative humidity RHm and the high sensible-heat ratio cooling-combining target indoor relative humidity RHm_ken, and therefore can extend the area of the dehumidifying mode A in which the temperature regulating coil 5 operates at the capacity value of 100%. This makes it possible to suppress the decrease in humidity caused by dehumidification by the air conditioners 22 .
  • the target indoor humidity for the ventilation device 23 is changed based on the cooling-operation information and the refrigerant evaporating temperature information. This makes it possible to prevent the air in the room from being insufficiently dehumidified, and from being overcooled, and therefore to improve the comfort in the room.
  • the control unit 14 decides the cooling capacity of the temperature regulating coil 5 , such that the humidity of the supplied air becomes the target indoor relative humidity RHm, based on the measurement values of the outside-air temperature sensor 11 and the outside-air humidity sensor 12 . Therefore, the ventilation device 23 supplies an optimum amount of dehumidification at the time of introducing the outside air by ventilation, and can achieve a cooling and dehumidifying operation that is less likely to cause a change in the indoor humidity.
  • the ventilation device according to the present invention is useful in that the ventilation device that humidifies the outside air, and that introduces the humidified air into a room, changes the amount of humidification relative to a target indoor humidity, and maintains a comfortable indoor humidity.
  • the ventilation device according to the present invention is suitable when a separate air conditioner is provided in a room to constitute an air conditioning system along with this ventilation device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
US15/320,801 2014-07-04 2014-07-04 Ventilation device Abandoned US20170159964A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/067934 WO2016002073A1 (ja) 2014-07-04 2014-07-04 換気装置

Publications (1)

Publication Number Publication Date
US20170159964A1 true US20170159964A1 (en) 2017-06-08

Family

ID=55018670

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/320,801 Abandoned US20170159964A1 (en) 2014-07-04 2014-07-04 Ventilation device

Country Status (5)

Country Link
US (1) US20170159964A1 (de)
EP (1) EP3165845B1 (de)
JP (1) JP6234575B2 (de)
CN (1) CN106489055B (de)
WO (1) WO2016002073A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190255912A1 (en) * 2018-02-19 2019-08-22 Ford Global Technologies, Llc Cabin heating system with sealed heat transfer loop
US20190255913A1 (en) * 2018-02-19 2019-08-22 Ford Global Technologies, Llc System and method for heating a cabin of a motor vehicle
US10760804B2 (en) 2017-11-21 2020-09-01 Emerson Climate Technologies, Inc. Humidifier control systems and methods
US10927493B2 (en) * 2016-04-07 2021-02-23 Shibaura Electronics Co., Ltd. Dryer and absolute humidity difference sensor
US11226128B2 (en) 2018-04-20 2022-01-18 Emerson Climate Technologies, Inc. Indoor air quality and occupant monitoring systems and methods
US11371726B2 (en) 2018-04-20 2022-06-28 Emerson Climate Technologies, Inc. Particulate-matter-size-based fan control system
EP4012280A4 (de) * 2019-08-09 2022-08-10 Mitsubishi Electric Corporation Belüftungsvorrichtung vom wärmeaustauschtyp
US11421901B2 (en) 2018-04-20 2022-08-23 Emerson Climate Technologies, Inc. Coordinated control of standalone and building indoor air quality devices and systems
US11486593B2 (en) 2018-04-20 2022-11-01 Emerson Climate Technologies, Inc. Systems and methods with variable mitigation thresholds
US11609004B2 (en) 2018-04-20 2023-03-21 Emerson Climate Technologies, Inc. Systems and methods with variable mitigation thresholds
US11994313B2 (en) 2018-04-20 2024-05-28 Copeland Lp Indoor air quality sensor calibration systems and methods
US12018852B2 (en) 2018-04-20 2024-06-25 Copeland Comfort Control Lp HVAC filter usage analysis system
US12078373B2 (en) 2018-04-20 2024-09-03 Copeland Lp Systems and methods for adjusting mitigation thresholds

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11293655B2 (en) * 2017-07-05 2022-04-05 Mitsubishi Electric Corporation Air-conditioning apparatus and air-conditioning system
CN111201405B (zh) * 2017-10-19 2021-08-03 三菱电机株式会社 热交换换气装置
DE112018005045T5 (de) 2017-10-24 2020-08-13 Mitsubishi Electric Corporation Ventilator
RU2727286C1 (ru) * 2019-02-22 2020-07-21 Частное Акционерное Общество "Вентиляционные системы" Вентиляционная установка с рекуперацией тепла и энергии
CN113050438B (zh) * 2021-02-26 2023-02-17 青岛海尔空调器有限总公司 用于家电控制的方法、装置和家电
JP7197811B2 (ja) * 2021-02-26 2022-12-28 ダイキン工業株式会社 換気システム
CN114110884B (zh) * 2021-11-24 2023-06-30 美的集团武汉制冷设备有限公司 新风机及其控制方法、计算机可读存储介质

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350286A (en) * 1979-08-20 1982-09-21 Diesel Kiki Company, Ltd. Humidity control apparatus
US5675979A (en) * 1996-03-01 1997-10-14 Honeywell Inc. Enthalpy based thermal comfort controller
JP2001272086A (ja) * 2000-03-29 2001-10-05 Mitsubishi Electric Corp 空気調和装置、空気調和方法
US20070257121A1 (en) * 2006-05-04 2007-11-08 Maple Chase Company Humidity control algorithm
US20080017347A1 (en) * 2005-01-10 2008-01-24 In Sook Chung Heat exchange apparatus and ventilation system using the same
US7386988B1 (en) * 2004-03-09 2008-06-17 Petschauer Richard J Outside temperature humidity compensation system
US20090210095A1 (en) * 2008-02-20 2009-08-20 Liebert Corporation Humidity control for multiple unit a/c system installations
WO2012077201A1 (ja) * 2010-12-08 2012-06-14 三菱電機株式会社 換気空調装置
US20130048267A1 (en) * 2010-06-11 2013-02-28 Mitsubishi Electric Corporation Ventilation and air-conditioning apparatus and method for controlling the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3543784B2 (ja) * 2001-04-18 2004-07-21 ダイキン工業株式会社 調湿換気装置
JP2003130401A (ja) * 2001-10-23 2003-05-08 Sharp Corp 加湿装置
CN2879006Y (zh) * 2006-02-21 2007-03-14 北京环都人工环境科技有限公司 节能式空气处理机
CN100572951C (zh) * 2008-07-23 2009-12-23 周祖全 一种室内空气质量提升机
JP5328951B2 (ja) * 2012-03-28 2013-10-30 三菱電機株式会社 空気調和システム
US9410752B2 (en) * 2012-08-17 2016-08-09 Albert Reid Wallace Hydronic building systems control
US9664405B2 (en) * 2012-11-16 2017-05-30 Carrier Corporation Control system for energy recovery ventilator

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350286A (en) * 1979-08-20 1982-09-21 Diesel Kiki Company, Ltd. Humidity control apparatus
US5675979A (en) * 1996-03-01 1997-10-14 Honeywell Inc. Enthalpy based thermal comfort controller
JP2001272086A (ja) * 2000-03-29 2001-10-05 Mitsubishi Electric Corp 空気調和装置、空気調和方法
US7386988B1 (en) * 2004-03-09 2008-06-17 Petschauer Richard J Outside temperature humidity compensation system
US20080017347A1 (en) * 2005-01-10 2008-01-24 In Sook Chung Heat exchange apparatus and ventilation system using the same
US20070257121A1 (en) * 2006-05-04 2007-11-08 Maple Chase Company Humidity control algorithm
US20090210095A1 (en) * 2008-02-20 2009-08-20 Liebert Corporation Humidity control for multiple unit a/c system installations
US20130048267A1 (en) * 2010-06-11 2013-02-28 Mitsubishi Electric Corporation Ventilation and air-conditioning apparatus and method for controlling the same
WO2012077201A1 (ja) * 2010-12-08 2012-06-14 三菱電機株式会社 換気空調装置

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10927493B2 (en) * 2016-04-07 2021-02-23 Shibaura Electronics Co., Ltd. Dryer and absolute humidity difference sensor
US10760804B2 (en) 2017-11-21 2020-09-01 Emerson Climate Technologies, Inc. Humidifier control systems and methods
US10760803B2 (en) 2017-11-21 2020-09-01 Emerson Climate Technologies, Inc. Humidifier control systems and methods
US10767878B2 (en) 2017-11-21 2020-09-08 Emerson Climate Technologies, Inc. Humidifier control systems and methods
US20190255912A1 (en) * 2018-02-19 2019-08-22 Ford Global Technologies, Llc Cabin heating system with sealed heat transfer loop
US20190255913A1 (en) * 2018-02-19 2019-08-22 Ford Global Technologies, Llc System and method for heating a cabin of a motor vehicle
US11226128B2 (en) 2018-04-20 2022-01-18 Emerson Climate Technologies, Inc. Indoor air quality and occupant monitoring systems and methods
US11371726B2 (en) 2018-04-20 2022-06-28 Emerson Climate Technologies, Inc. Particulate-matter-size-based fan control system
US11421901B2 (en) 2018-04-20 2022-08-23 Emerson Climate Technologies, Inc. Coordinated control of standalone and building indoor air quality devices and systems
US11486593B2 (en) 2018-04-20 2022-11-01 Emerson Climate Technologies, Inc. Systems and methods with variable mitigation thresholds
US11609004B2 (en) 2018-04-20 2023-03-21 Emerson Climate Technologies, Inc. Systems and methods with variable mitigation thresholds
US11994313B2 (en) 2018-04-20 2024-05-28 Copeland Lp Indoor air quality sensor calibration systems and methods
US12018852B2 (en) 2018-04-20 2024-06-25 Copeland Comfort Control Lp HVAC filter usage analysis system
US12078373B2 (en) 2018-04-20 2024-09-03 Copeland Lp Systems and methods for adjusting mitigation thresholds
EP4012280A4 (de) * 2019-08-09 2022-08-10 Mitsubishi Electric Corporation Belüftungsvorrichtung vom wärmeaustauschtyp

Also Published As

Publication number Publication date
EP3165845A1 (de) 2017-05-10
JP6234575B2 (ja) 2017-11-22
JPWO2016002073A1 (ja) 2017-04-27
EP3165845A4 (de) 2018-04-04
CN106489055A (zh) 2017-03-08
CN106489055B (zh) 2019-06-18
WO2016002073A1 (ja) 2016-01-07
EP3165845B1 (de) 2018-11-21

Similar Documents

Publication Publication Date Title
EP3165845B1 (de) Ventilationsvorrichtung
EP3165843B1 (de) Belüftungsvorrichtung
US10203122B2 (en) Air-conditioning and ventilation apparatus
EP2650617B1 (de) Lüftungs- und klimaanlagenvorrichtung
CN109196287B (zh) 空气调节系统
JP5375945B2 (ja) 温度および湿度の調整を行う空調システム
JP6253459B2 (ja) 空調用換気装置
US20130048267A1 (en) Ventilation and air-conditioning apparatus and method for controlling the same
CN108800375B (zh) 空气热源热泵式空调机
JP2013047603A (ja) 空調システム
JP5737173B2 (ja) 温度および湿度の調整を行う空調システム
JP5217701B2 (ja) 空調システム
KR101454995B1 (ko) 공조 기능을 갖는 외조기
JP5673524B2 (ja) 温度および湿度の調整を行う空調システム
JP4317792B2 (ja) 空気調和機の室内機
CN112378058B (zh) 一种新风机控制方法
JP5468427B2 (ja) 空調制御システムおよび空調制御方法
JP2011141079A (ja) パッケージ型空調機

Legal Events

Date Code Title Description
AS Assignment

Owner name: MITSUBISHI ELECTRIC CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ARAI, HIDEMOTO;YASUDA, MASAMI;HASEGAWA, MASAHIRO;AND OTHERS;SIGNING DATES FROM 20160902 TO 20160906;REEL/FRAME:041102/0685

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: ADVISORY ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION