WO2016079825A1 - ダクト式空気調和システム - Google Patents
ダクト式空気調和システム Download PDFInfo
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- WO2016079825A1 WO2016079825A1 PCT/JP2014/080647 JP2014080647W WO2016079825A1 WO 2016079825 A1 WO2016079825 A1 WO 2016079825A1 JP 2014080647 W JP2014080647 W JP 2014080647W WO 2016079825 A1 WO2016079825 A1 WO 2016079825A1
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- Prior art keywords
- air
- air volume
- control
- conditioned
- duct
- Prior art date
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Classifications
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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
- 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
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- 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
- F24F11/76—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 means responsive to temperature, e.g. bimetal springs
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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
- 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
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Definitions
- the present invention relates to a duct-type air conditioning system that supplies conditioned air to a plurality of air-conditioned spaces by a duct connected to an air conditioner.
- the total required air volume of the entire system is determined by a variable air volume (VAV) control unit. Then, the damper opening degree control and the blower rotation speed control are performed. In Patent Document 1, the air volume is finely adjusted based on the amount of change in the damper opening and the total required air volume.
- VAV variable air volume
- Patent Document 1 since the VAV control unit used in Patent Document 1 has a complicated configuration in which information for air conditioning control such as static pressure excess / deficiency information and damper opening information is acquired and fed back to the control of the air conditioner, There was a problem that the system as a whole became expensive and difficult to spread in ordinary houses. Moreover, in the prior art shown in Patent Document 1, the air volume is adjusted by the opening degree of the damper, and the damper to be used must be able to finely control the opening degree, so that the cost of the entire system increases. was there.
- the present invention has been made in view of the above, and an object thereof is to obtain a duct-type air conditioning system capable of realizing air volume control corresponding to the environment in a plurality of air-conditioned spaces with an inexpensive configuration.
- a duct type air conditioning system corresponds to an air conditioner and a plurality of air-conditioned spaces to which conditioned air of the air conditioner is supplied.
- a plurality of dampers that are respectively provided in a plurality of arranged ducts and that open or close the air passages in the individual ducts; a plurality of air outlets that are respectively disposed at ends of the plurality of ducts;
- a control device that controls the air conditioner and the plurality of dampers, and the control device includes the plurality of air conditioners that are respectively provided in the plurality of air-conditioned spaces when the air conditioner automatically adjusts the air volume.
- the opening ratio is the ratio of the number or area of the total number of opening outlets provided in the duct having the damper in the open state to the total number or area of the outlets Temperature and before And the temperature difference between the target temperature of the conditioned space, based on, and having a control air volume calculation unit that calculates a control air volume of the indoor units constituting the air conditioner.
- the duct type air conditioning system according to the present invention has an effect that air volume control corresponding to the environment in a plurality of air-conditioned spaces can be realized with an inexpensive configuration.
- Configuration diagram of a duct-type air conditioning system according to Embodiment 1 of the present invention The figure which shows the example which changed the number of blower outlets in the duct type air conditioning system shown in FIG.
- the figure showing the structural example of the control air volume calculation part of the control apparatus shown in FIG. The figure which shows the example of the control air volume table shown in FIG.
- movement of the control apparatus shown in FIG. The block diagram of the duct type air conditioning system which concerns on Embodiment 2 of this invention
- FIG. 1 is a configuration diagram of a duct-type air conditioning system according to Embodiment 1 of the present invention.
- the duct type air conditioning system 1 includes an indoor unit 2 constituting an air conditioner, an outdoor unit 3 constituting the air conditioner and connected to the indoor unit 2, a control device 4 for controlling the air conditioner, and an air-conditioned unit A controller 6 that is arranged in the space 10-1 and transmits various information to the control device 4 through the control line 5, and a conditioned air from the indoor unit 2 connected to the indoor unit 2 is supplied to the plurality of air-conditioned spaces 10-1, 10 -2... 10-n and a plurality of duct branch portions 7-branched from the duct 7 and arranged corresponding to the air-conditioned spaces 10-1, 10-2. 1, 7-2...
- the duct-type air conditioning system 1 includes a plurality of ducts connected to the indoor unit 2. The conditioned air may be supplied to a plurality of air-conditioned spaces through a plurality of ducts.
- the control device 4, the indoor unit 2, the outdoor unit 3, the controller 6, and the plurality of dampers 9-1, 9-2... 9-n are connected by a control line 5, and the plurality of dampers 9-1, 9-2 are connected.
- ... 9-n are individually controlled by the control device 4 to be in an open state or a closed state.
- the dampers 9-1, 9-2,... 9-n are in the open state, conditioned air is supplied to the air-conditioned spaces 10-1, 10-2,.
- 2... 9-n is in the closed state, the supply of conditioned air to the air-conditioned spaces 10-1, 10-2.
- the controller 6 has a thermistor 11 that measures the room temperature of the air-conditioned space 10-1, and the measured room temperature information is transmitted to the control device 4 via the control line 5.
- various settings for controlling air conditioning in the air-conditioned spaces 10-1, 10-2, include, for example, the setting of the quantity of the outlets 8-1, 8-2,..., 8-n respectively provided in the plurality of air-conditioned spaces 10-1, 10-2,.
- the air temperature automatic manual setting represents the setting of the target temperature of the air-conditioned space and whether the indoor unit 2 automatically adjusts the air volume or manually adjusts the air volume of the indoor unit 2.
- the outlet number information a indicating the quantity of the outlets 8-1, 8-2,..., 8-n, the target temperature information b, and the result of the automatic air volume manual setting
- the air volume automatic manual setting information c representing is generated, and these pieces of information are transmitted from the controller 6 to the control device 4 together with the room temperature information d detected by the thermistor 11.
- these pieces of information are referred to as controller output information 6a.
- the contents set by the controller 6 are not limited to the above setting contents.
- the indoor unit 2 has a function of changing the exhaust amount of conditioned air stepwise by changing the rotational speed of an indoor unit fan (not shown) stepwise.
- the air amount step number information indicating the shift step number of the exhaust air amount e is managed.
- the airflow stage number information e is information set in the indoor unit 2 in advance when the indoor unit 2 is shipped from the factory.
- the indoor unit output information 2a including the airflow stage number information e is sent from the indoor unit 2 to the control device 4. It is assumed that the airflow stage number information e is managed in the control device 4 by being transmitted to. A specific example of the air volume stage number information e will be described later.
- FIG. 2 is a diagram showing an example in which the number of outlets is changed in the duct type air conditioning system shown in FIG.
- the air-conditioned space 10-1 three air outlets 8-1 are arranged at the end of the duct branch 7-1, and in the air-conditioned space 10-2, 2 at the end of the duct branch 7-2.
- One air outlet 8-2 is arranged, and one air outlet 8-3 is arranged at the end of the duct branching portion 7-3 in the air-conditioned space 10-3.
- FIG. 2 it is assumed that the damper 9-1 is in an open state and the dampers 9-2 and 9-3 are in a closed state.
- the conditioned air supplied from the indoor unit 2 flows through the duct branch portion 7-1 and is supplied from the three outlets 8-1 to the air-conditioned space 10-1, but the air-conditioned space 10-2. , 10-3 is not supplied.
- the opening ratio representing the degree of conditioned air supplied to the air-conditioned spaces 10-1, 10-2, 10-3 is, for example, the outlets of the plurality of outlets 8-1, 8-2, 8-3. It is obtained by using the sum of the numbers and the sum of the number of the opening outlets of the three outlets 8-1 which are the opening outlets provided in the duct branching portion 7-1 having the damper 9-1 in the open state. That is, in the example of FIG.
- the opening ratio which is the ratio of the total number of opening outlets to the total number of outlets, is 50%.
- the room temperature detected by the thermistor 11 is 29 ° C.
- the target temperature is 27 ° C.
- the indoor unit 2 is in cooling operation
- the number of airflow stages is five.
- the function of calculating the control air volume of the indoor unit 2 will be described in detail using the example of the duct type air conditioning system 1 shown in FIG.
- the controller 6 is installed in the air-conditioned space 10-1, but the controller 6 may be installed in an air-conditioned space other than the air-conditioned space 10-1.
- the thermistor 11 detects the room temperature of the air-conditioned space 10-1.
- the detection of the room temperature is not limited to the thermistor 11, and temperature detecting means other than the thermistor may be used.
- the thermistor 11 is not limited to the one built in the controller 6, and may be arranged at any location in the air-conditioned space.
- FIG. 3 is a diagram illustrating a configuration example of a control air volume calculation unit in the control device illustrated in FIG.
- FIG. 3 shows only the control air volume calculation unit 400 which is a function for calculating the control air volume 48a of the indoor unit 2 among the functions of the control device 4, but the control apparatus 4 is shown in FIG. It is assumed that a function other than the control air volume calculation function such as a damper control function for controlling the opening / closing of the dampers 9-1, 9-2, and 9-3 shown in FIG.
- a function other than the control air volume calculation function such as a damper control function for controlling the opening / closing of the dampers 9-1, 9-2, and 9-3 shown in FIG.
- the control device 4 includes an information receiving unit 40 that receives the controller output information 6a from the controller 6 and the indoor unit output information 2a from the indoor unit 2, and the outlet number information a and target temperature information included in the controller output information 6a.
- b automatic air volume manual setting information c, and room temperature information d are stored, and air volume stage number information e included in the indoor unit output information 2a is managed by a damper control function (not shown) and dampers 9-1, 9-2, 9 -3, which stores damper open / close state information f representing the open / close state of -3, and a blower for calculating the sum of the plurality of blowout ports 8-1, 8-2, and 8-3 based on the blower outlet number information a Provided in a duct having an open damper among the plurality of outlets 8-1, 8-2, and 8-3 based on the outlet number sum calculation unit 43, the outlet number information a, and the damper open / close state information f.
- the temperature difference calculated by the temperature difference calculating unit 46, the opening ratio calculated by the opening ratio calculating unit 45, and the storage unit 41 are stored.
- a control air volume determination unit 48 that collates the air volume stage number with the control air volume table 47 to determine and output the control air volume 48a.
- the opening ratio calculating unit 45 uses the total number of outlets calculated by the total number of outlets calculating unit 43 and the total number of opening outlets calculated by the total number of opening outlets 44 to calculate the air-conditioned space 10-
- the degree of conditioned air supplied to 1, 10-2, 10-3, that is, the opening ratio, which is the ratio of the total number of open outlets to the total number of outlets, is calculated.
- the aperture ratio is 50%.
- the temperature difference calculation unit 46 calculates the temperature difference in consideration of whether the indoor unit 2 is in a cooling operation or a heating operation. For example, when the cooling operation is being performed, the temperature difference calculation unit 46 calculates the temperature difference using Equation (1), and when the heating operation is being performed, the temperature difference calculation unit 46 calculates the temperature difference using Equation (2).
- Temperature difference room temperature-target temperature (2)
- Temperature difference target temperature-room temperature
- FIG. 4 is a diagram showing an example of the control air volume table shown in FIG.
- the air flow stage number from 1 to 5 and the opening ratio stages R11 to R55 representing one or more opening ratios associated with the air flow stage value and the temperature difference value are associated.
- the plurality of temperature difference stages S ⁇ b> 1 to S ⁇ b> 7 and the plurality of control airflows for controlling the exhaust airflow of the conditioned air of the indoor unit 2 are associated with each other.
- the control air volume is a control quantity that tends to increase the air volume as the aperture ratio is high, or a control quantity that tends to increase the air volume as the temperature difference increases.
- control air volume is represented by letters for the sake of simplicity, but it is assumed that a value corresponding to the control air volume is actually set. It is assumed that the contents of the control air volume table 47 can partially change the intensity of the air volume according to the environment in which the controller 6 is installed, for example.
- the airflow stage number obtained from the airflow stage number information e is 5, the opening ratio calculated by the opening ratio calculation unit 45 is 40% or more and less than 60%, and the temperature difference calculated by the temperature difference calculation unit 46 is 6 ° C. or more. If so, the control air volume determining unit 48 determines the control air volume 48a corresponding to “super strong” indicated by (1) in the figure. Similarly, when the number of air flow stages is 5, the opening ratio is less than 20%, and the temperature difference is less than 1 ° C., the control air volume determining unit 48 sets the control air volume 48a corresponding to “super-quiet” shown in FIG. decide.
- FIG. 5 is a flowchart showing the operation of the control device shown in FIG.
- the air outlet number total calculation unit 43 calculates the air outlet number total
- the total outlet number calculating unit 44 calculates the total number of open outlets
- the temperature difference calculating unit 46 determines whether the indoor unit 2 is in cooling operation or heating operation, and calculates the temperature difference (step) S2).
- the total number of outlets is 6
- the total number of open outlets is 3
- the temperature difference is 2 ° C.
- the aperture ratio calculation unit 45 calculates the aperture ratio (step S3), and the aperture ratio is 50% in the example of FIG.
- the control air volume determination unit 48 refers to the control air volume table 47 and determines the control air volume 48a (step S4). Specifically, since the number of airflow stages is 5, the opening ratio is 50%, and the temperature difference is 2 ° C., the control airflow determination unit 48 sets the opening ratio stage R53 of the control airflow table 47 and the temperature difference stage S3. The corresponding “weak” control air volume 48a is determined. The determined control air volume 48a is transmitted to the indoor unit 2 (step S5).
- step S1 When it is determined that the air volume adjustment is not automatically performed (step S1, No), the air volume set by the user in the controller 6 is transmitted to the indoor unit 2 (step S6).
- the numerical aperture of the outlet is reduced while using the damper controlled to be in the open state or the closed state.
- the damper capable of finely controlling the opening degree and a VAV control unit for acquiring the static pressure excess / deficiency information and the damper opening degree, and the user can construct a duct type air conditioning system at a low cost. It becomes possible.
- FIG. FIG. 6 is a configuration diagram of a duct-type air conditioning system according to Embodiment 2 of the present invention.
- the difference from the duct type air conditioning system 1 of Embodiment 1 is as follows.
- the thermistor 11-1 is provided in the controller 6, and the air-conditioned space 10-2 among the plural air-conditioned spaces 10-2... 10-n other than the air-conditioned space 10-1.
- Is provided with a thermistor 11-2, and the to-be-conditioned space 10-n is provided with a thermistor 11-n.
- n is an integer of 1 or more.
- Room temperature information 11a detected by the thermistors 11-2... 11-n is transmitted to the control device 4 through the control line 12.
- the same reference numerals are given to the same parts as those in the first embodiment, and the description thereof is omitted, and only different parts will be described here.
- FIG. 7 is a diagram illustrating a first configuration example of the control air volume calculation unit in the control device shown in FIG.
- the control air volume calculation unit 410 includes an information reception unit 40A that receives the controller output information 6a, the indoor unit output information 2a, and the room temperature information 11a detected by the thermistors 11-1, 11-2,.
- a storage unit 41A for storing outlet number information a, target temperature information b, air volume automatic manual setting information c, room temperature information d, air volume stage number information e, damper open / close state information f, and room temperature information 11a, and air volume setting determination unit 42
- An average temperature calculation unit 49 that calculates a temperature obtained by averaging the temperatures of a plurality of air-conditioned spaces in which the air outlets are arranged, and a temperature that calculates a temperature difference between the average temperature calculated by the average temperature calculation unit 49 and the target temperature It has a calculating unit 46A, and the opening ratio calculation unit 45, a control air volume table 47, and a control air amount determining unit 48.
- the control air volume 48a is determined using the room temperature information d from the thermistor 11, but in the duct type air conditioning system 1A, a plurality of dampers are open.
- the control air volume 48a is determined using a plurality of temperatures detected in the air-conditioned space. For example, when only the dampers 9-1 and 9-2 of the air-conditioned spaces 10-1 and 10-2 shown in FIG. 6 are in the open state, the average temperature calculation unit 49 determines whether the damper is in the open state based on the damper open / close state information f.
- the air-conditioned spaces 10-1 and 10-2 in which the air outlets are arranged are specified, the room temperature detected by the thermistor 11-1 arranged in the air-conditioned space 10-1 and the thermistor 11- in the air-conditioned space 10-2.
- the average value with the room temperature detected by 2 is calculated.
- the temperature difference calculation unit 46A uses the average value calculated by the average temperature calculation unit 49 as the room temperature for calculating the temperature difference. Thereby, the temperature unevenness of the air-conditioned space 10-1 and the air-conditioned space 10-2 can be reduced.
- FIG. 8 is a diagram showing a second configuration example of the control air volume calculation unit in the control device shown in FIG.
- the control air volume calculation unit 420 includes an information reception unit 40A, a storage unit 41A, an air volume setting determination unit 42, an outlet number total calculation unit 43, an opening outlet number total calculation unit 44, and an opening ratio calculation unit 45. Based on the air outlet number information a, the room temperature information d, the damper open / close state information f, and the room temperature information 11a, a temperature obtained by weighted averaging the temperatures of the plurality of air-conditioned spaces in which the air outlets with the dampers opened is calculated.
- a weighted average temperature calculating unit 50 a temperature difference calculating unit 46B for calculating a temperature difference between the weighted average temperature calculated by the weighted average temperature calculating unit 50 and the target temperature, an opening ratio calculating unit 45, and a control air volume table 47. And a control air volume determination unit 48.
- the air-conditioned space with a large number of outlets has a large area and is difficult to be air-conditioned.
- a temperature is weighted based on the number of outlets in the plurality of air-conditioned spaces.
- a weighting method a weighted average of the number of outlets and room temperature is used. For example, in the duct type air conditioning system 1A of FIG. 6, the dampers 9-1 and 9-2 of the air-conditioned spaces 10-1 and 10-2 are in the open state, and the room temperature of the air-conditioned space 10-1 is blown at 30 ° C.
- the weighted average temperature calculation unit 50 uses the damper number information a and the damper open / close state information f to determine the damper.
- the number of open air outlets in the air-conditioned spaces 10-1 and 10-2 where the air outlets in the open state are arranged is obtained, and the weighted average temperature is obtained by the equation (3).
- the control air volume determining unit 48 determines the “weak” control air volume 48a shown in FIG.
- the control air volume determining unit 48 when the temperature difference is 4.2 ° C., the control air volume determining unit 48 is. Then, the “strong” control air volume 48a shown in FIG. 4 is determined.
- the air volume can be determined in consideration of the air-conditioned space 10-1 that is difficult to be air-conditioned, and the room temperature of the air-conditioned space 10-1 can be brought closer to the target temperature sooner.
- the opening ratio is calculated using the total number of outlets and the total number of opening outlets has been described.
- the opening ratio may be obtained using the total outlet area and the total opening area.
- the duct-type air conditioning systems 1 and 1A are arranged corresponding to the air conditioner and a plurality of air-conditioned spaces to which the conditioned air of the air conditioner is supplied.
- a plurality of dampers provided in each of the plurality of ducts to open or close the air passages in the individual ducts, a plurality of air outlets respectively disposed at ends of the plurality of ducts, and the air
- a control device that controls the conditioner and the plurality of dampers, and the control device, when the air conditioner automatically adjusts the air flow, the plurality of blowers respectively provided in the plurality of air-conditioned spaces.
- the opening ratio which is the ratio of the number or area of the total number of opening outlets provided in the duct having the damper in the open state to the total number or area of outlets, and the opening outlet Temperature and air to be conditioned
- the control air quantity calculation section 400 which determines the control air volume for controlling the air volume of the indoor units constituting the air conditioner.
- the duct type air conditioning systems 1 and 1A it is not necessary to use a VAV control unit, so that the volume of components can be reduced. Further, the damper may only perform an opening or closing operation, and the apparatus configuration is simplified, so that the life can be extended.
- control air volume calculation unit 410 uses a temperature difference between an average value of a plurality of temperatures measured in a plurality of air-conditioned spaces where the open air outlets exist and the target temperature. With this configuration, temperature unevenness in a plurality of air-conditioned spaces can be reduced.
- control air volume calculation unit 420 includes a weighted average temperature obtained by weighted averaging a plurality of temperatures measured in a plurality of air-conditioned spaces in which the opening air outlets exist, and the target temperature. The difference in temperature is used. With this configuration, the room temperature of the air-conditioned space that is difficult to be air-conditioned can be brought closer to the target temperature sooner.
- the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
- 1,1A Duct type air conditioning system 2 indoor unit, 2a indoor unit output information, 3 outdoor unit, 4 control device, 5 control line, 6 controller, 6a controller output information, 7 duct, 7-1, 7-2 , 7-3, 7-n Duct branch, 8-1, 8-2, 8-3, 8-n Outlet, 9-1, 9-2, 9-3, 9-n damper, 10-1 , 10-2, 10-3, 10-n Air-conditioned space, 11, 11-1, 11-2, 11-n thermistor, 11a room temperature information, 12 control lines, 40, 40A information receiver, 41, 41A memory Section, 42 air volume setting determination section, 43 air outlet number total calculation section, 44 opening air outlet number total calculation section, 45 opening ratio calculation section, 46, 46A, 46B temperature difference calculation section, 47 control air volume table, 48 control air volume determination Part, 48a control The amount, 49 mean temperature calculation unit, 50 the weighted average temperature calculation section, 400, 410, 420 control air quantity calculation section.
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Abstract
Description
図1は本発明の実施の形態1に係るダクト式空気調和システムの構成図である。ダクト式空気調和システム1は、空気調和機を構成する室内機2と、空気調和機を構成し室内機2に接続された室外機3と、空気調和機を制御する制御装置4と、被空調空間10-1に配置され制御線5を介して各種情報を制御装置4へ伝達するコントローラ6と、室内機2に接続され室内機2からの調和空気を複数の被空調空間10-1,10-2・・・10-nへ供給するダクト7と、ダクト7から分岐し被空調空間10-1,10-2・・・10-nに対応して配置される複数のダクト分岐部7-1,7-2・・・7-nと、複数のダクト分岐部7-1,7-2・・・7-n内に各々配置され制御装置4からの制御によりダクト内の風路を開閉する複数のダンパ9-1,9-2・・・9-nと、複数のダクト分岐部7-1,7-2・・・7-nの端部に各々配置され調和空気を複数の被空調空間10-1,10-2・・・10-nに排気する複数の吹出口8-1,8-2・・・8-nとを有する。nは1以上の整数である。なおダクト式空気調和システム1では1本のダクトと複数のダクト分岐部とが用いられているが、例えば、ダクト式空気調和システム1は、室内機2に複数のダクトの繋げ、室内機2からの調和空気を複数のダクトで複数の被空調空間へ供給する構成でもよい。
(1)温度差=室温-目標温度
(2)温度差=目標温度-室温
図6は本発明の実施の形態2に係るダクト式空気調和システムの構成図である。実施の形態1のダクト式空気調和システム1との違いは以下の通りである。ダクト式空気調和システム1Aでは、コントローラ6にサーミスタ11-1が設けられ、被空調空間10-1以外の複数の被空調空間10-2・・・10-nの内、被空調空間10-2にはサーミスタ11-2が設けられ、被空調空間10-nにはサーミスタ11-nが設けられている。nは1以上の整数である。サーミスタ11-2・・・11-nで各々検出された室温情報11aは、制御線12で制御装置4へ送信される。以下、実施の形態1と同一部分には同一符号を付してその説明を省略し、ここでは異なる部分についてのみ述べる。
(3)加重平均温度=(30×5+25×1)/6=29.2℃
Claims (5)
- 空気調和機と、
前記空気調和機の調和空気が供給される複数の被空調空間に対応して配置された複数のダクト内に各々設けられ、個々のダクト内の風路を開または閉の状態にする複数のダンパと、
前記複数のダクトの端部に各々配置される複数の吹出口と、
前記空気調和機および前記複数のダンパを制御する制御装置と、
を備え、
前記制御装置は、
前記空気調和機が自動で風量調整を行うとき、前記複数の被空調空間に各々設けられた前記複数の吹出口の数または面積の総和に対する開状態のダンパを有するダクトに設けられた開口吹出口の数または面積の総和の比率である開口比と、前記開口吹出口が存在する被空調空間で測定された温度と前記被空調空間の目標温度との温度差と、に基づいて、前記空気調和機を構成する室内機の制御風量を算出する制御風量算出部を有する
ことを特徴とするダクト式空気調和システム。 - 前記制御風量算出部は、前記室内機の風量の変速段数を表す風量段数と、前記開口比と、前記温度差と、前記開口比が高いほど風量を強める傾向の制御風量と、が設定された制御風量テーブルを用いて、前記制御風量を算出することを特徴とする請求項1に記載のダクト式空気調和システム。
- 前記制御風量算出部は、前記室内機の風量の変速段数を表す風量段数と、前記開口比と、前記温度差と、前記温度差が大きいほど風量を強める傾向の制御風量と、が設定された制御風量テーブルを用いて、前記制御風量を算出することを特徴とする請求項1に記載のダクト式空気調和システム。
- 前記制御風量算出部は、前記開口吹出口が存在する複数の被空調空間で測定された複数の温度の平均値と、前記目標温度との温度差を用いることを特徴とする請求項1から請求項3の何れか1項に記載のダクト式空気調和システム。
- 前記制御風量算出部は、前記開口吹出口が存在する複数の被空調空間で測定された複数の温度を前記開口吹出口の数で加重平均した加重平均温度と、前記目標温度との温度差を用いることを特徴とする請求項1から請求項3の何れか1項に記載のダクト式空気調和システム。
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