JP2016186397A - Air conditioner selection support device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To support selection of an air conditioner having performance adapting to a current operation state of an existing air conditioner, in updating (replacing) the existing air conditioner.SOLUTION: When an existing outdoor machine 42 is determined to be high-performance from a current operation state obtained based on the rotation frequency of the outdoor machine 42 in a predetermined period, a selection processing unit 12 selects an outdoor mechanism with a current operation state as a proper range, as a selection candidate of replacement equipment. Also, the selection processing unit 12 selects an outdoor machine fit to a current operation state in an intermediate period, as the selection candidate of the replacement equipment. A presentation unit 14 presents a selected outdoor machine as the selection candidate of the replacement equipment.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air conditioner selection support device and program, and more particularly to selection of an outdoor unit when an installed air conditioner is updated (replaced) by contract.

  When building an air conditioner in a building multi-building air conditioner, the load is calculated from the information of the facility where the air conditioner is installed, such as the size and orientation of the room, the number of windows and the orientation, and the capacity of the air conditioner is insufficient for that load. Air conditioners are selected in consideration of the safety factor so as not to occur.

  The selected air conditioner will eventually be renewed by a lease contract or the like, but in the past, an air conditioner having a capacity equivalent to that of existing equipment is often selected.

JP 2009-14245 A JP 2009-20640 A International Publication No. 2009/008134

  When air conditioners with higher performance than necessary are selected by considering safety factors at the time of new introduction, the existing equipment will not improve the balance between the current operating status and the performance of the air conditioners. It will be updated. This may lead to a decrease in competitiveness without cost reduction.

  Since building multi air conditioning is equipped with an inverter in the compressor of the outdoor unit, even if a high-performance air conditioner is installed, efficient operation control according to the load may be feasible. However, depending on the relationship with the indoor unit, the time period when the frequency is lower than the minimum frequency may increase, which may lead to a decrease in operating efficiency due to the start and stop of the compressor.

  An object of the present invention is to support selection of an air conditioner having a performance suitable for the current operating state of an air conditioner when an existing air conditioner is updated (replaced).

  An air conditioner selection support device according to the present invention includes an operation result information storage unit that stores operation result information including at least an operation frequency of an outdoor unit already installed in a facility, and each outdoor unit that can be installed in the facility. Outdoor unit information storage means for storing specification information including capacity, minimum frequency and maximum frequency, and the operating state of the installed outdoor unit in the predetermined period obtained from the specifications of the installed outdoor unit and the operation performance information The selection condition is set based on the relationship between the outdoor unit and the outdoor unit whose specification matches the selection condition from among the outdoor units whose specification information is stored in the outdoor unit information storage means. It comprises a selection processing means for selecting as a candidate for equipment and a presentation means for presenting one or a plurality of outdoor units selected by the selection processing means.

  Further, the selection processing means sets at least one of the conditions regarding the maximum capacity or the minimum capacity required for the outdoor unit obtained by analyzing the operation result information as a selection condition.

  In addition, the selection processing means, the operating condition when the installed outdoor unit obtained by analyzing the operation result information is operated to the maximum, based on the maximum capacity of the installed outdoor unit If the above condition is not satisfied, an outdoor unit that matches a selection condition set based on the maximum capacity of the installed outdoor unit is selected as a candidate for a replacement device for the installed outdoor unit.

  In addition, the selection processing means aggregates the frequency of occurrence of each operation frequency from the higher operation frequency by analyzing the operation result information, the proportion of the total operation frequency of the total value is a preset corresponding range An outdoor unit that can be operated with a driving capability when the rate is exceeded is selected as a candidate for an exchange device for the installed outdoor unit.

  In addition, a simulation for integrating the installed outdoor unit with other installed outdoor units is performed, and as a result of the simulation, the ability when the outdoor unit after integration is operated to the maximum is the capacity of the installed outdoor unit. It has an integrated simulation processing means for causing the presenting means to present the result of the simulation when the driving condition based on the maximum capacity is met.

  The program according to the present invention includes an operation record information storage unit that stores operation record information including at least an operation frequency of an outdoor unit installed in a facility for a predetermined period, and the capacity and minimum frequency of each outdoor unit that can be installed in the facility. And an outdoor unit information storage means for storing specification information including the maximum frequency, and the installed outdoor unit in the predetermined period obtained from the specifications of the installed outdoor unit and the operation performance information. The selection condition is set based on the relationship with the operation state of the outdoor unit, and the outdoor unit whose specification matches the selection condition is selected from the outdoor units whose specification information is stored in the outdoor unit information storage means. Functioning as selection processing means for selecting as a replacement device for the machine, and presentation means for presenting one or more outdoor units selected by the selection processing means.

  According to the present invention, when an existing air conditioner is updated (replaced), it is possible to support selection of an air conditioner having a performance suitable for the current operating state of the air conditioner.

  In addition, by performing a simulation of integrating an installed outdoor unit with other installed outdoor units, an air conditioner when a plurality of outdoor units are integrated can be presented as a selection candidate.

1 is a block diagram showing an embodiment of an air conditioner selection support device according to the present invention and an overall system configuration including an air conditioner selection support device. It is a hardware block diagram of the computer which forms the air-conditioner selection assistance apparatus in this Embodiment. It is the figure which showed an example of the data structure of the outdoor unit information memorize | stored in the outdoor unit information storage part 18 in this Embodiment. It is the figure which showed the selection process in this Embodiment. In this Embodiment, it is the figure which showed the graph of the result of having totaled the measurement data of the driving frequency for every capability. It is a conceptual diagram when implementing the simulation which integrates the outdoor unit in this Embodiment, (a) is the structure before integrating by simulation, (b) is the figure which showed the structure after integration.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of an air conditioner selection support apparatus according to the present invention and an overall system configuration including the air conditioner selection support apparatus. FIG. 1 shows a configuration in which an air conditioner selection support device 10 and a measurement system 3 installed in a facility 1 are connected by a network 2 such as the Internet. Moreover, the building multi air conditioner 40 installed in the facility 1 as air-conditioning equipment is shown by FIG. The building multi-air conditioner 40 includes a plurality of indoor units 41 installed indoors and an outdoor unit 42 to which the plurality of indoor units 41 are connected. The controller 4 connects one or a plurality of outdoor units 42 and performs air conditioning control. Note that the controller 4 only needs to control a set of a plurality of indoor units 41 and outdoor units 42 in the same manner, so only one set is shown in FIG. 1 for convenience. The measurement system 3 supports the air conditioner selection support via the network 2 through the network 2 with the operation result information generated by associating the date and time with the set temperature based on the operation control of the outdoor unit 42 by the controller 4 and the operation frequency of the outdoor unit 42. Transmit to device 10.

  FIG. 2 is a hardware configuration diagram of a computer forming the air conditioner selection support device 10 in the present embodiment. In the present embodiment, the computer forming the air conditioner selection support device 10 can be realized by a general-purpose hardware configuration such as a personal computer (PC). That is, as shown in FIG. 2, the computer connects the CPU 21, ROM 22, RAM 23, hard disk drive (HDD) 24, mouse 25 and keyboard 26 provided as input means, and display 27 provided as a display device. An input / output controller 28 and a network controller 29 provided as communication means are connected to an internal bus 30.

  Returning to FIG. 1, the air conditioner selection support apparatus 10 according to the present embodiment includes an information collection unit 11, a selection processing unit 12, an integrated simulation processing unit 13, a presentation unit 14, an operation performance information storage unit 15, and a weather data storage unit 16. The facility information storage unit 17 and the outdoor unit information storage unit 18 are provided. Note that components not used in the description in this embodiment are omitted from FIG.

  The information collection unit 11 collects the operation result information transmitted from the measurement system 3 and accumulates it in the operation result information storage unit 15. In addition, the information collecting unit 11 collects meteorological data from the Japan Meteorological Agency, etc., including the outside temperature, sunshine duration, solar radiation, precipitation, snowfall, cloud cover, etc. of the area where the facility 1 is located via the network 2. The data is accumulated in the accumulation unit 16.

  The selection processing unit 12 sets selection conditions based on the relationship between the specifications of the existing outdoor unit 42 and the operation result information stored in the operation result information storage unit 15, and the outdoor unit information is stored in the outdoor unit information storage unit 18. The outdoor unit that matches the selection condition set by the specification is selected as a replacement device candidate for the existing outdoor unit 42 from among the outdoor units. The integrated simulation processing unit 13 has the maximum capacity of the outdoor unit 42 when the existing outdoor unit 42 obtained by analyzing the driving result information stored in the driving result information storage unit 15 is maximally operated. When the operation conditions based on the above are not met, a simulation is performed to integrate the outdoor unit 42 with other installed outdoor units. As a result of the simulation, the capacity when the outdoor unit after integration is operated to the maximum When the operation condition based on the maximum capacity of the outdoor unit is met, the presentation unit 14 is made to present the result of the simulation. The presenting unit 14 presents one or a plurality of outdoor units selected by the selection processing unit 12 to a person in charge of an air conditioning construction design department who becomes a model selector. In addition, the presentation unit 14 presents the simulation result by the integrated simulation processing unit 13 to the person in charge.

  In the facility information storage unit 17, information related to the facility 1 is set and registered as facility information. The facility information includes floor information (number of floors, area of each room, name, etc.), information on the facility 1 itself such as window information (window position, area, orientation, etc.), use of the facility 1, such as the number of people in the room, etc. Information on the person in charge, number of indoor units installed in each room, combination of indoor and outdoor units, information on air conditioners installed in the facility 1 such as a group, facilities installed in the facility 1 in the lighting lighting time zone and air conditioning operation time equality, etc. Contains information on the use of. Of course, the present invention is not limited to this, and information necessary for selecting a replacement device candidate to be described later may be included as appropriate.

  FIG. 3 is a diagram showing an example of the data configuration of the outdoor unit information stored in the outdoor unit information storage unit 18 in the present embodiment. The outdoor unit information is registered in advance by a person in charge of device selection or the like, and includes specification information regarding each outdoor unit that can be installed in the facility 1. In the outdoor unit information, the horsepower, the cooling capacity, the heating capacity, the cooling frequency that specifies the minimum frequency and the maximum frequency, and the heating frequency that specifies the minimum frequency and the maximum frequency are specified in the model name for identifying each outdoor unit. Are set in association with each other. In the present embodiment, the “cooling capacity” indicates the capacity (maximum capacity) when operating at the maximum capacity in the cooling operation mode. Similarly, the “heating capacity” indicates the capacity (maximum capacity) when operating at the maximum capacity in the heating operation mode. “Maximum frequency” indicates the frequency of the compressor when operating at the highest level (maximum capacity). “Minimum frequency” indicates the frequency of the compressor when the outdoor unit operates at the lowest level. The outdoor unit cannot be operated at a capacity lower than the lowest frequency, and therefore stops when a smaller capacity is required.

  The components 11 to 14 in the air conditioner selection support device 10 are realized by a cooperative operation of a computer that forms the air conditioner selection support device 10 and a program that operates on the CPU 21 that is mounted on the computer. The storage units 15 to 18 are realized by the HDD 24 mounted in the air conditioner selection support device 10. Alternatively, the RAM 23 or an external storage means may be used via a network.

  Further, the program used in this embodiment can be provided not only by communication means but also by storing it in a computer-readable recording medium such as a CD-ROM or USB memory. The program provided from the communication means or the recording medium is installed in the computer, and various processes are realized by the CPU of the computer sequentially executing the program.

  In the above configuration, when the information collection unit 11 receives the operation result information transmitted from the measurement system 3, the information collection unit 11 sequentially stores the operation result information in the operation result information storage unit 15. The control controller 4 collects measurement data such as operation frequency from the outdoor unit 42 at regular intervals, for example, at a cycle of 1 to 2 minutes, but in the selection process described later, the measurement data collected every 1 to 2 minutes. Since, for example, an aggregate value or an average value for each hour of data is used, the data may be processed on the facility 1 side or the air conditioner selection support device 10 side and stored in the operation result information accumulation unit 15. . Alternatively, the measurement data may be stored in the driving performance information storage unit 15 as it is, and the data for every hour may be generated at the stage of performing the selection process. The weather data may be processed as necessary until it is used in the processing described later.

  Next, the air conditioner selection process in the present embodiment will be described with reference to the flowchart shown in FIG. Here, the description will be given focusing on the cooling operation. In the following description, various values are calculated by calculation, but significant figures for each value are not limited to the following examples and may be determined as appropriate.

  First, the operation frequency of the compressor of the outdoor unit 42 in a predetermined period is acquired from the operation result information storage unit 15 (step 101). In the present embodiment, since a model for replacing the existing outdoor unit 42 is selected, basically, the operating frequency of the entire operating period of the existing outdoor unit 42 may be used as the predetermined period, but not limited thereto. The data used for selecting the model, such as the operation frequency during the cooling operation mode operation or the most recent year, may be narrowed down in advance.

  The selection processing unit 12 selects a replacement device selection candidate for the existing device (outdoor unit 42) by verifying the operation state when the existing outdoor unit 42 is operated with the maximum capacity (step 102).

  That is, when the operating frequency of the compressor is acquired, the selection processing unit 12 calculates the capacity required for operation at each operating frequency as a ratio to the cooling capacity (maximum capacity) of the outdoor unit 42 (hereinafter referred to as “operating capacity rate”). Calculated). For example, the cooling capacity of the outdoor unit of the model number “D” shown in FIG. 3 is 40 kW, and the maximum cooling frequency is 90 Hz. Assuming that the operating frequency of the outdoor unit of the model number “D” at a certain time is 60 Hz, the operating capacity ratio at that time can be calculated as 60 Hz / 90 Hz = 67%. In this way, the driving capability rate at each driving frequency is calculated, and the maximum driving capability rate is obtained. The maximum driving capability rate (hereinafter referred to as “maximum driving capability rate”) corresponds to the capability when the outdoor unit 42 is operated to the maximum during operation in the cooling mode. Here, in this embodiment, a threshold value called a driving ability lower limit value is set in advance. For example, the driving capacity lower limit value is set to 80%. When the maximum operating capacity rate in the outdoor unit does not satisfy the operating condition that the driving capacity lower limit value (80%) has not been reached, the outdoor unit 42 is 80% of its own cooling capacity even on the day considered to be the hottest. I will not use it. This can be determined that the existing outdoor unit 42 has a so-called over-spec with an unnecessarily high performance.

  As described above, when the maximum operating capacity rate in the outdoor unit does not satisfy the operating condition of the operating capacity lower limit (80%) or more, in the present embodiment, when replacing (replacement) the existing equipment, the existing equipment is downed. Sizing is decided.

  For example, assuming that the existing outdoor unit 42 corresponds to the outdoor unit “D”, assuming that the maximum operating capacity rate of the outdoor unit “D” is 70% which is less than the lower limit of the operating capability, the cooling of the outdoor unit “D” is 40 kW. (Capacity) × 70% = 28 kW is set as the selection condition for an outdoor unit that sets the appropriate range (80% to 90%) of the maximum capacity, and a replacement device for the existing device may be selected.

  For example, among the outdoor units set and registered in FIG. 3, the cooling capacity of the outdoor unit of the model number “C” is 33.5 kW. Therefore, the operation at 28 kW is 28 kW / 33.5 kW = 84.6%, that is, the model number “C”. This corresponds to operation in an appropriate range (80% to 90%) in the outdoor unit. Therefore, the outdoor unit “C” matches the selection condition, and is selected as a candidate for replacement of the existing device in the verification based on the maximum capacity of the existing device.

  As described above, the selection processing unit 12 operates based on the relationship between the specifications (maximum capacity) of the existing equipment (outdoor unit 42) and the operation state of the outdoor unit 42 obtained from the operation result information. The outdoor unit information storage unit 18 is set with a selection condition of an outdoor unit in which the operating capacity (28 kW) when the capacity lower limit value (80%) is not reached is within the appropriate range (80% to 90%) of the maximum capacity. Out of all the outdoor units in which the outdoor unit information is registered, an outdoor unit that matches the set selection condition is selected as a candidate for replacement of the existing unit.

  In addition, when the maximum operating capacity rate is lower than the driving capacity lower limit (80%) to less than 100%, the selection condition is that the outdoor unit (including existing equipment) has the cooling capacity of the maximum operating capacity rate to less than 100%. It is only necessary to set and select an outdoor unit that matches this selection condition as a selection candidate. In addition, when the maximum operating capacity ratio is 100%, it is considered that the cooling capacity of the existing equipment is insufficient. In this case, how much is insufficient cannot be obtained from the measurement data. Therefore, based on the transition of changes in measurement data, the ability that would have been necessary for operation is estimated, and selection of replacement equipment for existing equipment is performed based on the selection conditions of outdoor units whose values fall within the appropriate range of 80% to 90%. Candidates may be selected. Alternatively, the appropriate range such as 100% to 110% may be set above the existing device.

  As described above, when a model that is a candidate for selection of a replacement device is selected, the selection processing unit 12 subsequently verifies the operation state when the existing outdoor unit 42 is operated with the minimum capability, thereby verifying the existing state. A replacement device selection candidate of the outdoor unit 42 of the device is selected (step 103). The measurement data used for this verification may be the operation frequency of the entire operation period of the existing outdoor unit 42 as in step 102, but is not limited to this, and the intermediate period in which the use frequency of the air conditioner is relatively low. The data used for the selection of the model such as the operation frequency at or the last one year may be narrowed down beforehand. In addition, as in the present embodiment, if a selection candidate for a replacement device of an existing device (outdoor unit 42) is selected from the selection candidates selected in both step 102 and step 103, in step 103, The replacement device in this processing may be selected from the outdoor units selected in step 102 among the outdoor units set and registered in FIG.

  FIG. 5 is a diagram showing a graph of the result of totaling the measurement data of the operating frequency for each capability in the present embodiment. The horizontal axis is the driving capacity required when the outdoor unit 42 is actually operated, and is represented by the ratio (the above-mentioned “driving capacity rate”) to the cooling capacity of the outdoor unit 42. The vertical axis represents the frequency of the operating frequency obtained by totaling the operating frequency indicated by the measurement data for each driving capability rate. Since the maximum cooling frequency is when the outdoor unit 42 is operating at a capacity of 100%, that is, a cooling capacity, the correspondence between the ratio of the driving capacity and the operating frequency can be obtained from this relationship. According to FIG. 5, it can be seen that the frequency of the driving frequency when driving at the driving capability rate d is the maximum occurrence frequency m. In general, since the intermediate period is longer than the use period of air conditioning in Japan, it is considered that the maximum occurrence frequency m comes where the operating capacity rate is low.

  The selection processing unit 12 first counts the frequency of the operation frequency in descending order of the driving ability, and the ratio of the total value of the total value of the operation frequency (total value / total number of operation frequencies) is a preset ratio ( Hereinafter, the driving ability that is referred to as “corresponding range ratio” is obtained. In this embodiment, an example in which 80% is set as the corresponding range ratio will be described. However, the setting value need not be limited to this. Setting a high coverage ratio makes it easier to select outdoor units that cover the capabilities of existing equipment, reducing downsizing effects while reducing the possibility of starting and stopping, and selecting an outdoor unit that allows efficient operation. It becomes easy to be done. In order to reduce the number of starts / stops, it is preferable to set the corresponding range rate so that at least the driving capability d corresponding to the maximum occurrence frequency m is included in the corresponding range (the hatched area in FIG. 5).

  As illustrated in FIG. 5, the selection processing unit 12 counts the driving frequency rate (hereinafter referred to as the driving capability rate when the ratio of the total value updated sequentially by counting the frequency of the driving frequency exceeds the corresponding range rate (80%). , Referred to as “lower limit driving capability rate”) is 20%.

  For example, if the outdoor unit 42 (existing equipment) is the outdoor unit of the model number “D” shown in FIG. 3, the operating capacity of the outdoor unit “D” is 20% when 20% × 90 Hz / 100% = 18 Hz. It can be calculated as when driving with driving ability. The outdoor unit “D” having an operation frequency of 18 Hz was operated at 40 kW × 18 Hz / 90 Hz = 8 kW. That is, the selection condition of an outdoor unit that can be operated at a minimum of 8 kW is set, and an outdoor unit that matches the selection condition is selected as a replacement device selection candidate. An outdoor unit that can be operated at a minimum of 8 kW is an outdoor unit that operates at a minimum cooling frequency of 8 kW or less. For example, in the case of the outdoor unit of the model number “A” shown in FIG. 3, the cooling capacity is 22.4 kW, the minimum cooling frequency is 10 Hz, and the maximum cooling frequency is 70 Hz. Since the operation capacity at the time of operation at the maximum cooling frequency of 70 Hz is 22.4 kW, the operation capacity at the time of operation at the minimum cooling frequency of 10 Hz is 22.4 kW × 10 Hz / 70 Hz = 3.2 kW. “A” is an outdoor unit that meets this selection condition.

  The selection processing unit 12 performs the above calculation for all the outdoor units set and registered in the outdoor unit information storage unit 18, thereby reducing the operating range where the capability at the time of operation at the lowest cooling frequency is 8 kW or less. Select the outdoor unit you have as a candidate for replacing existing equipment.

  As described above, in the present embodiment, as a selection candidate for replacement of existing equipment based on the selection conditions set for each of the maximum capacity and minimum capacity required for the outdoor unit obtained by analyzing the operation result information. elect. Since step 102 based on the highest cooling frequency and step 103 based on the lowest cooling frequency may be performed independently, the order of execution may be reversed, or may be performed in parallel.

  Then, the selection processing unit 12 selects a replacement device selection candidate selected in both processes among the replacement device selection candidates selected in Steps 102 and 103 as a replacement device selection candidate (Step 104). In addition, you may make it leave the outdoor unit selected in at least one of the selection conditions regarding the maximum capacity | capacitance requested | required of an outdoor unit as a replacement apparatus selection candidate. In other words, if the number of outdoor units left in both processes, the number of outdoor units selected in the so-called AND relationship is extremely small, select the outdoor unit so that at least one of them takes the so-called OR relationship. Also good.

  As in the present embodiment, when an outdoor unit selected as a selection candidate in both processes is a replacement device candidate, as described above, in the later processing, it is registered in the outdoor unit information storage unit 18. It is efficient not to target all outdoor units as verification targets, but to target only outdoor units selected as selection candidates in the previous processing.

  Although the above has been described focusing on the cooling operation, the same applies to the heating operation. Then, the selection processing unit 12 sets a replacement device selection candidate and an outdoor unit selected as a replacement device candidate in both the cooling operation and the heating operation. Also in this case, the person who processes later does not target all the outdoor units registered in the outdoor unit information storage unit 18 but only the outdoor units selected as selection candidates in the previous processing. Is efficient. In addition, an outdoor unit selected so as to have an OR relationship instead of AND, that is, in at least one of the cooling operation and the heating operation may be used as a replacement device candidate.

  When at least one outdoor unit is selected as a replacement device candidate by the selection processing unit 12 (Y in step 105), the presentation unit 14 transmits the selected outdoor unit to a PC or the like used by a person in charge of device selection or the like. (Step 106).

  The person in charge of equipment selection has the lowest initial cost including the purchase price for replacement equipment, etc., or the operation cost such as power consumption, etc. among the outdoor units selected as selection candidates, or the total cost of them Select the replacement device as the replacement device.

  In the above process, the selection result may be registered in the database of the PC such as the air conditioner selection support apparatus 10 or the device selection person in charge together with the facility information and the meteorological data of the corresponding date and time. By recording the regional characteristics, facility information, operation status, and the like in association with each other, the selection result can be used for facilities for which measurement data cannot be acquired.

  By the way, the replacement device may not be selected by the above selection process. In this case (N in Step 105), the integrated simulation processing unit 13 performs the next simulation process (Step 107).

  When the existing equipment (outdoor unit 42) has a tendency that the number of times of starting and stopping of the compressor is relatively large in the past, the reason is that the number of indoor units 41 connected to the outdoor unit 42 is the maximum of the outdoor unit 42. It is thought that the number of times of starting and stopping increased because it was too small for the ability. That is, there is a possibility that the indoor unit is too finely divided and the load applied to the outdoor unit 42 is too small, so that the operating frequency of the outdoor unit 42 does not reach the minimum cooling frequency.

  Therefore, a simulation tries to integrate a plurality of outdoor units to which indoor units installed in adjacent rooms are connected into one unit. The indoor units to be integrated are not selected unconditionally, but indoor units installed in a room without the same department or partition by referring to the indoor unit installation information included in the facility information, the layout information of the facility 1, etc. It is preferable to select an outdoor unit that is not inappropriate for integration.

  6A and 6B are conceptual diagrams when the building multi-air conditioner is integrated by the integrated simulation processing unit 13. FIG. 6A shows a configuration before integration by simulation, and FIG. 6B shows a configuration after integration. Show. The numbers inside the blocks indicating the outdoor unit and the indoor unit indicate the cooling capacity (kW) based on the specifications of each device. Before integration (at the time of new introduction), a 33.5 kW outdoor unit was introduced in accordance with the specifications of the indoor unit 41. However, only 70% of the capacity is actually used. The same applies to the outdoor unit 43 that connects indoor units installed in adjacent rooms.

  When the integrated simulation processing unit 13 recognizes that the capacity (driving capacity rate) when the maximum driving is performed in each of the two outdoor units 42 and 43 by analyzing the measurement data is 70%, 2 When it is determined that the outdoor units 42 and 43 are the outdoor units 42 and 43 that can be integrated with reference to the facility information or the like, the integration of the two outdoor units 42 and 43 is simulated. As a result, as shown in FIG. 6B, the capacity of one outdoor unit 42 after the integration is 84%, which satisfies the selection condition described above. Further, by integrating, the number of indoor units connected to the outdoor unit 42 increases, so that the number of operating machines above the minimum cooling frequency increases, and the number of start / stop times also decreases.

  When the combination of the outdoor units 42 and 43 that can be integrated by the integrated simulation processing unit 13 is specified, the presentation unit 14 performs a simulation result by the integrated simulation processing unit 13, that is, the outdoor units 42 and 43 before integration, and the outdoor unit after integration. 42. Information that can identify the indoor unit connected to the outdoor unit 42 is sent to a PC or the like used by the person in charge of device selection and the like (step 107).

  In the present embodiment, an example in which two outdoor units 42 and 43 are integrated into one existing outdoor unit 42 has been described. However, for example, three or more outdoor units may be integrated. . Further, when the maximum capacity of one outdoor unit 42 is slightly exceeded due to integration, it may be replaced with a higher-level outdoor unit. For example, in the example described above, the outdoor units 42 and 43 having a maximum capacity of 33.5 kW are integrated into one outdoor unit 42. However, as a result of the integration, the maximum capacity of one outdoor unit 42 may be slightly exceeded. In such a case, the simulation result that two outdoor units 42 and 43 are integrated and replaced with one outdoor unit (the outdoor unit “D” having a maximum capacity of 40 kW) as a higher model may be presented. Good.

  Further, in the present embodiment, the simulation by the integrated simulation processing unit 13 is performed when the selection processing unit 12 cannot select the replacement device selection candidate. However, the selection processing unit 12 has a relationship with the selection result. Alternatively, a simulation may be performed.

  1 facility, 2 network, 3 measurement system, 4 control controller, 10 air conditioner selection support device, 11 information collection unit, 12 selection processing unit, 13 integrated simulation processing unit, 14 presentation unit, 15 operation result information storage unit, 16 weather Data storage unit, 17 facility information storage unit, 18 outdoor unit information storage unit, 21 CPU, 22 ROM, 23 RAM, 24 hard disk drive (HDD), 25 mouse, 26 keyboard, 27 display, 28 I / O controller, 29 network controller , 30 Internal bus, 40 Building multi air conditioner, 41 Indoor unit, 42, 43 Outdoor unit.

Claims (6)

An operation result information storage means for storing operation result information including at least an operation frequency in a predetermined period of the outdoor unit installed in the facility;
Outdoor unit information storage means for storing specification information including the capacity, minimum frequency and maximum frequency of each outdoor unit that can be installed in the facility;
A selection condition is set based on the relationship between the specifications of the installed outdoor unit and the operating state of the installed outdoor unit in the predetermined period obtained from the operation result information, and the specification information is stored in the outdoor unit information storage means. A selection processing means for selecting an outdoor unit whose specification matches the selection condition from among stored outdoor units as a candidate for a replacement device of the installed outdoor unit;
Presenting means for presenting one or more outdoor units selected by the selection processing means;
An air conditioner selection support device characterized by comprising:   The said selection process means sets at least one of the conditions regarding the maximum capacity | capacitance requested | required of the outdoor unit obtained by analyzing the said driving | operation performance information as a selection condition, The selection condition is characterized by the above-mentioned. Air conditioner selection support device.   The selection processing means satisfies the operation condition based on the maximum capacity of the installed outdoor unit when the installed outdoor unit obtained by analyzing the operation result information is operated to the maximum. If not, an outdoor unit that matches a selection condition set based on the maximum capacity of the installed outdoor unit is selected as a candidate for a replacement device of the installed outdoor unit. Air conditioner selection support device.   The selection processing means aggregates the frequency of occurrence of each operation frequency from the higher one of the operation frequencies by analyzing the operation result information, and the ratio of the total value of the total operation frequency is set as a corresponding range ratio set in advance. The air conditioner selection support device according to claim 2, wherein an outdoor unit capable of operating with an operating capacity when exceeding the above is selected as a candidate for a replacement device for the installed outdoor unit.   Perform a simulation to integrate the installed outdoor unit with other installed outdoor units. As a result of the simulation, the maximum capacity of the installed outdoor unit is the capacity when the outdoor unit is fully operated after integration. The air conditioner selection support apparatus according to claim 1, further comprising an integrated simulation processing unit that causes the presenting unit to present the result of the simulation when the operating condition based on the condition is met. Operation result information storage means for storing operation result information including at least the operation frequency of the outdoor unit already installed in the facility, and specification information including the capacity, minimum frequency and maximum frequency of each outdoor unit that can be installed in the facility An outdoor unit information storage means for storing
A selection condition is set based on the relationship between the specifications of the installed outdoor unit and the operating state of the installed outdoor unit in the predetermined period obtained from the operation result information, and the specification information is stored in the outdoor unit information storage means. A selection processing means for selecting an outdoor unit whose specification matches the selection condition from among stored outdoor units as a candidate for a replacement device of the installed outdoor unit;
Presenting means for presenting one or more outdoor units selected by the selection processing means;
Program to function as.

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