JP2014066504A - Air conditioner management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner management device capable of grasping substantial processing circumstances of an indoor unit.SOLUTION: An air conditioner management device 50 for managing an air conditioner in which a plurality of indoor units are connected in the same system for one outdoor unit comprises: an acquisition part 55a which acquires operation information of an air conditioner; a calculation part 55b; and a grasp part 55c. The operation information of the air conditioner includes information regarding a compressor of the outdoor unit. The calculation part 55b calculates a heat treatment amount of the whole of the plurality of indoor units from the information regarding the compressor of the outdoor unit. The grasp part 55c grasps heat treatment amount at every indoor unit from the operation information of the air conditioner and the heat treatment amount of the whole of the plurality of air conditioners.

Description

  The present invention relates to an air conditioner management apparatus.

  Conventionally, as disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2010-048451), an air conditioner management device that distributes the total power consumption of an air conditioner for each indoor unit based on the operating status of the air conditioner has been proposed. Has been.

  In the management device disclosed in Patent Document 1, it is possible to grasp the power consumption of each indoor unit, but it is preferable that the actual processing status of the indoor unit can be grasped more.

  Then, the subject of this invention is providing the air-conditioner management apparatus which can grasp | ascertain the actual processing condition of an indoor unit.

  An air conditioner management apparatus according to a first aspect of the present invention is an air conditioner management apparatus that manages an air conditioner in which a plurality of indoor units are connected to one outdoor unit in the same system, and includes an acquisition unit and a calculation unit And a grasping unit. The acquisition unit acquires operation information of the air conditioner. The operation information of the air conditioner includes information regarding the compressor of the outdoor unit. A calculation part calculates the heat processing amount of the whole some indoor unit from the information regarding the compressor of an outdoor unit. The grasping unit grasps the heat treatment amount for each indoor unit from the operation information of the air conditioner and the heat treatment amounts of the plurality of air conditioners as a whole.

  In the present invention, since the heat treatment amount for each indoor unit can be grasped, it is possible to grasp a more substantial processing situation for each indoor unit.

  The air conditioner management apparatus according to the second aspect of the present invention is the air conditioner management apparatus according to the first aspect of the present invention, wherein the operation information of the air conditioner includes the setting of the indoor unit in addition to the information regarding the compressor. Temperature, indoor unit suction temperature, indoor unit blowing temperature or indoor unit indoor heat exchanger temperature, indoor unit indoor motor valve opening, indoor unit indoor fan speed, and thermo-on time, At least one is included.

  In this invention, since the heat processing amount for every indoor unit can be grasped | ascertained using the basic information of an air conditioner, cost can be held down.

  With the air conditioner management device according to the first aspect of the present invention, the actual processing status of the indoor unit can be grasped.

  In the air conditioner management device according to the second aspect of the present invention, the cost can be reduced.

1 is a schematic configuration diagram of an air conditioner management system including an air conditioner management apparatus according to an embodiment of the present invention. The schematic block diagram of the control relation of an air conditioner. The schematic block diagram of an air conditioning machine management apparatus. The flowchart which shows the flow of the control processing in an air conditioning machine management apparatus.

  Hereinafter, an air conditioner management system 100 including an air conditioner management apparatus 50 according to the present invention will be described with reference to the drawings.

(1) Overall Configuration of Air Conditioner Management System FIG. 1 is a schematic configuration diagram of an air conditioner management system 100 including an air conditioner management device 50 according to an embodiment of the present invention.

  The air conditioner management system 100 is a system for managing the heat treatment amount of the air conditioner 10 by the air conditioner management device 50.

  As shown in FIG. 1, the air conditioner management system 100 mainly includes an air conditioner 10 and an air conditioner management device 50 that manages and controls the air conditioner 10. The air conditioner 10 and the air conditioner management device 50 are connected via a dedicated communication line 5, and bidirectional communication is possible. Hereinafter, the structure of each part which mainly comprises the air conditioner management system 100 will be described.

(2) Air Conditioner FIG. 2 is a schematic configuration diagram of the control relationship of the air conditioner 10.

  As shown in FIG. 1, the air conditioner 10 is mainly installed on the outdoor unit 11 installed outside the building and on the ceiling or wall of the room inside the building, and is connected to one outdoor unit 11 in the same system. And a refrigerant communication pipe 8 that connects the outdoor unit 11 and the indoor unit 12 to each other. Note that the number of refrigerant systems is not limited to one as shown in FIG. 1 and may be two or more. Below, it demonstrates on the assumption that it has two or more refrigerant systems. One or a plurality of indoor units 12 may be arranged in each room, or one indoor unit 12 may be arranged in a certain room and plural indoor units 12 may be arranged in a certain room.

  The outdoor unit 11 and the indoor unit 12 have an outdoor refrigerant circuit 11a and an indoor refrigerant circuit 12a, respectively, and these are connected by the refrigerant communication pipe 8 to form one refrigerant circuit 9. ing. In the main body casing of the outdoor unit 11, devices constituting the outdoor refrigerant circuit 11a such as the compressor 21 and the outdoor heat exchanger 22 and an outdoor fan 23 are accommodated. In the main body casing of the indoor unit 12, devices constituting the indoor refrigerant circuit 12 a such as the indoor heat exchanger 31 and the indoor motorized valve 32 and the indoor fan 33 are accommodated.

  As shown in FIG. 2, the control unit 41 of the air conditioner 10 includes an outdoor control unit 41 a of the outdoor unit 11 and an indoor control unit 41 b of the indoor unit 12. The outdoor control unit 41a and the indoor control unit 41b are connected via a dedicated communication line, and can communicate bidirectionally. The control unit 41 of the air conditioner 10 is connected to the air conditioner management device 50 via the dedicated communication line 5.

  Further, the control unit 41 of the air conditioner 10 controls the operation of various devices arranged in the outdoor unit 11 and the indoor unit 12 based on a control command from the air conditioner management device 50. Here, the control command includes an operation / stop command for the indoor unit 12, a command for changing the operation mode of the indoor unit 12, and the like. Control of the operation of various devices refers to adjustment of the rotation speed of the compressor 21, the outdoor fan 23 and the indoor fan 33, adjustment of the opening degree of the indoor electric valve 32, and the like.

  Further, the control unit 41 of the air conditioner 10 transmits the operation information of the air conditioner 10 to the air conditioner management device 50 in accordance with a control command from the air conditioner management device 50.

  The operation information of the air conditioner 10 includes the operation state of the outdoor unit 11 (normal mode, capacity restriction mode, etc.), outdoor temperature, indoor temperature (suction temperature of the indoor unit 12), and states of various devices and sensors in the outdoor unit 11. Values (information on the outdoor fan 23 (rotation speed, etc.), information on the compressor 21 (rotation speed, etc.), refrigerant temperature, refrigerant pressure, etc.), state values of various devices and sensors in the indoor unit 12 (information on the indoor fan 33) (Revolution speed, etc.), data indicating the indoor electric valve 32 (opening degree, etc.), refrigerant temperature, refrigerant pressure, etc.) are included. In addition, it is a case where the remote control which a user can input is connected to the indoor control part 41b of the indoor unit 12, Comprising: Central control by the air-conditioner management apparatus 50 is cancelled | released, and the input command by a remote control has priority. When set, the operation state of the indoor unit 12 (ON / OFF, set temperature, operation mode such as cooling / heating / dehumidification, etc.) is also included in the operation information of the air conditioner 10.

  Here, the room temperature is detected by a room temperature sensor 13 that is installed in the vicinity of the inlet of the indoor unit 12 and detects the temperature of the room in which the indoor unit 12 is installed. The outdoor temperature is detected by an outdoor temperature sensor 14 that is installed in the vicinity of the suction port of the outdoor unit 11 and detects the outside air temperature in the vicinity of the outdoor unit 11. The refrigerant temperature is installed at a predetermined position of the refrigerant circuit 9 (for example, the inlet, middle and outlet of the outdoor heat exchanger 22, the inlet, middle and outlet of the indoor heat exchanger 31, the discharge side and the suction side of the compressor 21). Are detected by a plurality of refrigerant temperature sensors 15, 15. The refrigerant pressure is detected by a plurality of refrigerant pressure sensors 16, 16... Installed at predetermined positions of the refrigerant circuit 9 (for example, the discharge side and the suction side of the compressor 21).

(3) Air Conditioner Management Device FIG. 3 is a schematic configuration diagram of the air conditioner management device 50.

  The air conditioner management device 50 is disposed in a management room of a building where the air conditioner 10 is installed in order to manage and control the air conditioner 10. As shown in FIG. 3, the air conditioner management device 50 mainly includes a communication unit 51, a display unit 52, an input unit 53, a storage unit 54, and a control unit 55.

(3-1) Communication Unit The communication unit 51 is a network interface that allows the air conditioner management device 50 to be connected to the dedicated communication line 5.

(3-2) Display Unit The display unit 52 is mainly composed of a display. On the display unit 52, operation information of the air conditioner 10 is appropriately displayed. Further, the display unit 52 displays the heat treatment amount of the entire indoor unit 12 in the refrigerant system unit calculated by the calculation unit 55b described later, and the indoor unit 12 in the refrigerant system unit acquired by the grasping unit 55c described later. The amount of heat treatment is also displayed.

(3-3) Input Unit The input unit 53 is mainly composed of an operation button and a touch panel that covers the display. When an administrator or the like touches an operation button or a button on the touch panel, a control process corresponding to the button is executed by the control unit 55.

(3-4) Storage Unit The storage unit 54 is composed of a hard disk or the like, and mainly includes an operation information storage area 54a, a first heat treatment amount calculation rule storage area 54b, and a second heat treatment amount calculation rule storage area 54c. And a heat treatment amount storage area 54d.

(3-4-1) Operation Information Storage Area The operation information storage area 54a stores the operation information of the air conditioner 10 ascertained by the acquisition unit 55a (described later).

(3-4-2) First Heat Treatment Amount Calculation Rule Storage Area In the first heat treatment amount calculation rule storage area 54b, a first heat treatment amount calculation for calculating the heat treatment amount of the entire plurality of indoor units 12 in the refrigerant system unit. Rules are remembered. The first heat treatment amount calculation rule is a rule such that the heat treatment amount of the whole of the plurality of indoor units 12 in the refrigerant system unit is calculated by an expression composed of the rotation speed of the compressor 21 of the outdoor unit 11 and the circulation amount of the refrigerant. .

(3-4-3) Second Heat Treatment Amount Calculation Rule Storage Area In the second heat treatment amount calculation rule storage area 54c, a second heat treatment amount calculation rule for calculating the heat treatment amount for each indoor unit 12 in the refrigerant system unit. Is remembered. The second heat treatment amount calculation rule is that the heat treatment amount of the entire indoor unit 12 in the refrigerant system unit is assigned to each indoor unit 12 in the refrigerant system unit based on the opening ratio of the indoor motor operated valve 32 of each indoor unit 12. The rule is to distribute.

(3-4-4) Heat treatment amount storage area In the heat treatment amount storage area 54d, the heat treatment amount of the entire indoor unit 12 in units of refrigerant system calculated by the calculation unit 55b and a predetermined amount grasped by the grasping unit 55c are stored. The amount of heat treatment for each indoor unit 12 in the refrigerant system is stored.

(3-5) Control Unit The control unit 55 includes a CPU, a ROM, a RAM, and the like, and reads and executes a program stored in the storage unit 54, thereby obtaining an acquisition unit 55a, a calculation unit 55b, and a grasping unit 55c. And so on.

(3-5-1) Acquisition Unit The acquisition unit 55a acquires the operation information of the air conditioner 10 from the control unit 41 of the air conditioner 10 at predetermined time intervals (in this embodiment, at intervals of 5 minutes). The acquisition unit 55a also acquires information (such as ON / OFF of the air conditioner 10, a set temperature, an operation mode (cooling mode / heating mode)) input from an administrator or the like via the input unit 53. And the acquisition part 55a stores the acquired driving | operation information of the air conditioning machine 10 in the above-mentioned driving | operation information storage area 54a.

(3-5-2) Calculation Unit The calculation unit 55b is based on information about the compressor 21 of the outdoor unit 11 included in the operation information of the air conditioner 10 at predetermined time intervals (in this embodiment, at intervals of 5 minutes). Then, the heat treatment amount of the entire plurality of indoor units 12 in the refrigerant system unit is calculated. Specifically, the calculation unit 55b reads the first heat treatment amount calculation rule stored in the first heat treatment amount calculation rule storage area 54b, and calculates the rotation speed of the compressor 21 of the outdoor unit 11 and the refrigerant circulation amount. From this, the heat treatment amount of the entire indoor unit 12 in the refrigerant system unit is calculated. The calculating unit 55b calculates the refrigerant circulation amount based on, for example, the refrigerant temperature at a predetermined position detected by the refrigerant temperature sensor 15 or the refrigerant pressure at a predetermined position detected by the refrigerant pressure sensor 16. .

(3-5-3) Grasping Unit The grabbing unit 55c is a predetermined time interval (in this embodiment, every 5 minutes), the operation information of the air conditioner 10, and the plurality of indoor units 12 in units of refrigerant system From the heat treatment amount, the heat treatment amount for each indoor unit 12 in the refrigerant system unit is grasped. Specifically, the grasping unit 55c is an indoor unit for each refrigerant system stored in the heat treatment amount storage area 54d based on the second heat treatment amount calculation rule stored in the second heat treatment amount calculation rule storage area 54c. The heat treatment amount of the entire 12 is distributed to each indoor unit 12 in the refrigerant system. More specifically, the grasping unit 55c first derives the ratio of the opening degree of the indoor motor operated valve 32 of each indoor unit 12 for each refrigerant system. Then, based on the derived ratio of the opening degree of the indoor motor-operated valve 32 of each indoor unit 12, the heat treatment amount of the entire indoor unit 12 in units of refrigerant system is distributed to each indoor unit 12 in the refrigerant system. Thus, the heat treatment amount for each indoor unit 12 in the predetermined refrigerant system is grasped.

(4) Flow of Control Processing in Air Conditioner Management Device FIG. 4 is a flowchart showing the flow of control processing in the air conditioner management device 50. Hereinafter, the control which grasps | ascertains the heat processing amount for every indoor unit 12 in the refrigerant | coolant system unit in the air conditioning machine management apparatus 50 is demonstrated using FIG.

  First, as shown in FIG. 4, in step S <b> 101, the acquisition unit 55 a issues a control command to the operation unit 41 of the air conditioner 10 so as to transmit the operation information of the air conditioner 10, whereby the air conditioner 10. The operation information of the air conditioner 10 is acquired from the control unit 41. Then, the obtained operation information of the air conditioner 10 is stored in the operation information storage area 54a. Information input via the input unit 53 is appropriately acquired by the acquisition unit 55a and stored in the driving information storage area 54a.

  Next, in step S102, the calculation unit 55b reads the first heat treatment amount calculation rule stored in the first heat treatment amount calculation rule storage area 54b. And the calculation part 55b is based on the 1st heat processing amount calculation rule in step S103, and it is refrigerant system unit from the information (rotation speed) regarding the compressor 21 contained in the operation information of the air conditioner 10 which the acquisition part 55a acquired. The amount of heat treatment of the plurality of indoor units 12 is calculated. More specifically, the calculation unit 55b first calculates the amount of refrigerant circulated, and from the amount of refrigerant circulated and the rotation speed of the compressor 21 of the outdoor unit 11, the entire indoor unit 12 in the refrigerant system unit is calculated. The amount of heat treatment is calculated.

  Next, in step S104, the grasping unit 55c reads out the second heat treatment amount calculation rule stored in the second heat treatment amount calculation rule storage area 54c. In step S105, the grasping unit 55c first determines each indoor motor valve in each refrigerant system from the operation information of the air conditioner 10 acquired by the acquiring unit 55a (specifically, the opening degree of the indoor motor valve 32). The ratio of the opening degree of 32 is derived. And the grasping | ascertainment part 55c calculates the heat processing amount of the whole some indoor unit 12 of the refrigerant | coolant system unit calculated by the calculation part 55b based on the ratio of the opening degree of each indoor motor operated valve 32 in each derived | led-out refrigerant system. It distributes to each indoor unit 12 in each refrigerant system. Thereby, the grasping unit 55c grasps the heat treatment amount of each indoor unit 12 in each refrigerant system.

(5) Features (5-1)
Conventionally, as disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2010-048451), an air conditioner management device that distributes the total power consumption of an air conditioner for each indoor unit based on the operating status of the air conditioner has been proposed. Has been.

  However, although the management apparatus disclosed in Patent Document 1 can grasp the power consumption of each indoor unit, it is preferable that the actual processing status of the indoor unit can be grasped more.

  Therefore, in the air conditioner management apparatus 50 according to the present embodiment, the calculation unit 55b uses a plurality of indoor units in each refrigerant system based on information related to the compressor 21 of the outdoor unit 11 (specifically, the rotation speed of the compressor 21). The heat treatment amount of the entire 12 is calculated. And the grasping | ascertainment part 55c is the heat processing amount of the some indoor unit 12 whole in each refrigerant | coolant system | strain calculated by the operation information (specifically opening degree of the indoor motor operated valve 32) of the air conditioner 10, and each refrigerant | coolant system | strain. Thus, the heat treatment amount for each indoor unit 12 in each refrigerant system is grasped.

  As described above, in the present embodiment, not only the total heat treatment amount of the plurality of indoor units 12 in each refrigerant system but also the heat treatment amount for each indoor unit 12 in each refrigerant system can be grasped. The general processing situation can be grasped.

  And thereby, when the indoor unit 12 is divided and installed in a plurality of rooms, the magnitude of the air conditioning load in the room can be compared.

(5-2)
In the present embodiment, the amount of heat treatment for each indoor unit 12 in each refrigerant system is grasped from the information related to the compressor 21 included in the operation information of the air conditioner 10 and the opening degree of the indoor motor operated valve 32 of the indoor unit 12. . Thus, in this embodiment, since the heat processing amount for every indoor unit 12 can be grasped | ascertained using the basic information of the air conditioner 10, cost can be suppressed.

(6) Modifications The embodiment of the present invention has been described above with reference to the drawings. However, the specific configuration is not limited to the above-described embodiment, and can be changed without departing from the gist of the invention. .

(6-1) Modification A
In the above embodiment, the second heat treatment amount calculation rule is that the heat treatment amount of the whole indoor unit 12 in the refrigerant system unit is calculated based on the ratio of the opening degree of the indoor motor operated valve 32 of each indoor unit 12 in each refrigerant system. Although it has been described that the rule is to distribute to each indoor unit 12 in the above, it is not limited to this.

  For example, based on an equation that includes the set temperature of the indoor unit 12 in each refrigerant system, the suction temperature of the indoor unit 12, and the rotational speed of the indoor fan 33 of the indoor unit 12 as parameters, It may be a rule that the heat treatment amount of the entire unit 12 is distributed to each indoor unit 12 in the refrigerant system. In addition, you may change said preset temperature into the blowing temperature of the indoor unit 12 in each refrigerant system, or the temperature of the indoor heat exchanger 31. FIG.

  Furthermore, for example, the heat treatment amount of the entire indoor unit 12 in units of refrigerant system based on an equation including the parameters of the time of the thermo-on of the indoor unit 12 in each refrigerant system and the rotational speed of the indoor fan 33 of the indoor unit 12 May be distributed to each indoor unit 12 in the refrigerant system.

(6-2) Modification B
In the said embodiment, although the example displayed on the display part 52 was given as a method of outputting the heat processing amount in the air-conditioner management apparatus 50, it is not restricted to this. For example, the heat treatment amount calculated and grasped by the air conditioner management device 50 may be printed on a paper medium, or may be transmitted by e-mail to a computer owned by a manager or the like in a building. That is, any output method may be used as long as the administrator can grasp the heat treatment amount of the entire indoor unit 12 in units of refrigerant systems or the heat treatment amount of each indoor unit 12 in units of refrigerant systems.

  The present invention can be variously applied to an air conditioner management apparatus that manages an air conditioner in which a plurality of indoor units are connected to one outdoor unit in the same system.

DESCRIPTION OF SYMBOLS 10 Air conditioner 11 Outdoor unit 12 Indoor unit 21 Compressor 31 Indoor heat exchanger 32 Indoor motor-operated valve 33 Indoor fan 50 Air conditioner management apparatus 55a Acquisition part 55b Calculation part 55c Grasping part

JP 2010-084551 A

Claims (2)

An air conditioner management device (30) for managing an air conditioner (10) in which a plurality of indoor units (12) are connected in the same system to one outdoor unit (11),
An acquisition unit (55a) for acquiring operation information of the air conditioner including information on the compressor (21) of the outdoor unit;
From the information regarding the compressor of the outdoor unit, a calculation unit (55b) that calculates the heat treatment amount of the plurality of whole indoor units,
A grasping unit (55c) for grasping the heat treatment amount for each indoor unit from the operation information of the air conditioner and the heat treatment amounts of the plurality of air conditioners as a whole,
An air conditioner management device. The operation information of the air conditioner includes, in addition to information on the compressor, a set temperature of the indoor unit, a suction temperature of the indoor unit, an outlet temperature of the indoor unit, or an indoor heat exchanger (31) of the indoor unit At least one of the temperature, the opening degree of the indoor motor-operated valve (32) of the indoor unit, the rotational speed of the indoor fan (33) of the indoor unit, and the thermo-on time,
The air conditioner management apparatus according to claim 1.

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