Evaluation device, evaluation method and evaluation program

Abstract

To evaluate performance of an air conditioning pump easily.SOLUTION: An evaluation device 100 has a collection unit 121, a creation unit 122, an extraction unit 123, and an evaluation unit 124. The collection unit 121 collects control data for an air conditioning pump from a pump control device 200 that controls the air conditioning pump. The creation unit 122 creates a performance standard based on the control data for a period to be compared collected by the collection unit 121. The extraction unit 123 extracts control data for a period to be evaluated under a condition that is the same as or similar to the performance standard created by the creation unit 122. The evaluation unit 124 evaluates the performance of the air conditioning pump based on the performance standard created by the creation unit 122 and the control data extracted by the extraction unit 123.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an evaluation apparatus, an evaluation method, and an evaluation program.

Background Art

[0002] Conventionally, a pump for air conditioning installed in a building or the like (hereinafter also simply referred to as a pump) may cause wear of an impeller and a liner ring and internal scaling when operated for a long time, resulting in performance degradation. And when a trouble occurs during operation due to performance degradation or the like, a technician has to grasp the phenomenon, diagnose the performance of the pump, and investigate and solve the cause of the trouble.

[0003] Here, the performance diagnosis of the pump may be performed by using data measured by an external measuring machine such as pressure and current, and determining the degree of degradation of the pump from the change situation of the numerical values indicated by the data.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, with the conventional technology, it is not possible to easily evaluate the performance of a pump for air conditioning. For example, conventionally, numerical values such as pressure and current in the operating state of the pump are measured by a pressure gauge installed in the pump piping and an ammeter on the power panel for the pump motor, but this method makes it difficult to perform continuous measurement for a certain period. In addition, in order to perform continuous measurement for a certain period, it is necessary to newly install a measurement sensor and a data storage device for evaluation, which imposes a burden on the facility maintenance manager.

Means for Solving the Problems

[0006] In order to solve the above-described problems, an evaluation apparatus according to the present invention includes: a collection unit that collects control data of an air-conditioning pump from a pump control apparatus that controls the air-conditioning pump; a creation unit that creates a performance criterion based on the control data in a period that is a comparison target collected by the collection unit; an extraction unit that extracts control data in a period that is an evaluation target under the same or similar conditions as the performance criterion created by the creation unit; and an evaluation unit that evaluates the performance of the air-conditioning pump based on the performance criterion created by the creation unit and the control data extracted by the extraction unit.

Effects of the Invention

[0007] According to the present invention, there is an effect that the performance of the air-conditioning pump can be easily evaluated.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the evaluation apparatus, evaluation method, and evaluation program according to the present application will be described in detail with reference to the drawings. Note that the evaluation apparatus, evaluation method, and evaluation program according to the present application are not limited by this embodiment.

[0010] [1. Example of System Configuration] First, an overview of the system including the evaluation apparatus 100 according to this embodiment will be described. FIG. 1 is a diagram showing an air conditioning control system including the evaluation apparatus 100 according to the embodiment. FIG. 1 is a drawing related to the control system of air conditioning equipment in a general building, and shows a system in which chilled water (hot water) adjusted by the heat source machine 211 is supplied to the air conditioner 212. Note that the solid lines in FIG. 1 indicate the pipes through which chilled water (hot water) flows.

[0011] Here, a plurality of pumps 213 are installed between the heat source machine 211 and the air conditioner 212 to mediate the supply of chilled water (hot water). However, according to the load on the air conditioner side, the pressure of the chilled water (hot water) supplied to the air conditioner 212 needs to be adjusted.

[0012] Therefore, by attaching an inverter 214 to each pump 213 to adjust the operating output of the pump, or by adjusting the opening degree of the bypass valve 215 to adjust the chilled water (hot water) returned to the bypass, the pressure of the chilled water (hot water) supplied to the air conditioner 212 is adjusted to a predetermined pressure corresponding to the load on the air conditioner side.

[0013] Note that in the system of FIG. 1, an example in which an inverter 214 is attached to the pump 213 is shown, but it is not limited to this, and the inverter 214 may not be configured. In this case, the pressure of the chilled water (hot water) supplied to the air conditioner 212 is adjusted by adjusting the opening degree of the bypass valve 215. Here, a method for adjusting the pressure of the chilled water (hot water) supplied to the air conditioner 212 by the inverter 214 and the bypass valve 215 will be described.

[0014] The inverter 214 adjusts the output of the attached pump by changing its output, thereby adjusting the pressure of the chilled (hot) water supplied to the air conditioner 212. On the other hand, the bypass valve 215 adjusts the pressure of the chilled (hot) water supplied to the air conditioner 212 by changing the flow rate returning to the bypass without changing the output of the pump by adjusting its opening degree.

[0015] That is, by adjusting either the output of the inverter 214 or the opening degree of the bypass valve 215, the pressure of the chilled (hot) water supplied to the air conditioner 212 can be adjusted. Therefore, even in a system without an inverter, the pressure can be adjusted by adjusting the opening degree of the bypass valve. In a system with an inverter, from the perspective of reducing the pump's energy consumption, the pressure is adjusted by changing the inverter output, and in many cases, the bypass valve opening degree is controlled to 0% except during operation in the low load region.

[0016] The pump control device 200 (PMX in FIG. 1) is connected to measuring instruments such as a pressure gauge 216 and a flow meter 217 in addition to the inverter 214 and the bypass valve 215 to obtain data on the operating status of the pump. Then, the pump control device 200 uses the acquired information to control the output of the inverter 214, the opening degree of the bypass valve 215, etc., in order to keep the discharge pressure of the pump 213, which changes with the change in the flow rate of the chilled (hot) water supplied to the air conditioner 212, at a predetermined value.

[0017] The evaluation device 100 is communicably connected to the pump control device 200 and collects data on the operating conditions of the pump acquired by the pump control device 200. Then, the evaluation device 100 evaluates the deterioration status or recovery status of the pump by comparing the data for the period to be evaluated (hereinafter also referred to as the evaluation target period) with the data for the period to be compared (hereinafter also referred to as the comparison target period). The processing of the evaluation device 100 will be described below.

[0018] The evaluation device 100 collects the control data of the pump 213 from the pump control device 200 that controls the pump 213, and creates performance criteria based on the control data in the comparison target period. After that, the evaluation device 100 extracts the control data in the evaluation target period under the same or similar conditions as the created performance criteria, and evaluates the performance of the pump 213 based on the performance criteria and the extracted control data.

[0019] For example, the evaluation device 100 first collects the control data of the pump 213, such as the opening degree of the bypass valve 215, the output of the inverter 214, pressure, flow rate, and pump operation information indicating the operating status of the pump 213 every 1 second or every 1 minute, from the pump control device 200 that controls the operating state of the pump 213. After that, the evaluation device 100 creates performance criteria with some operating conditions aligned, such as "pressure: 123 - 128 kPa" and "bypass valve opening degree: 0%", from the control data in the period to be compared.

[0020] Next, the evaluation device 100 extracts data with the same or similar conditions as the operating conditions "pressure: 123 - 128 kPa" and "bypass valve opening degree: 0%" for which the performance criteria were created from the control data in the evaluation target period. After that, the evaluation device 100 compares the data with the operating conditions other than the inverter output aligned from the performance criteria and the extracted control data, and evaluates the performance status of whether the performance of the pump 213 has deteriorated or recovered.

[0021] Thereby, the evaluation device 100 can evaluate whether the performance of the pump in the evaluation target period has deteriorated or recovered compared to the comparison target period by comparing the control data in the evaluation target period and the comparison target period for comparison from the control data obtained by the pump control device 200 that controls the operating status of the pump.

[0022] [2. Configuration of the evaluation device 100] Next, referring to FIG. 2, the configuration of the evaluation apparatus 100 shown in FIG. 1 will be described. FIG. 2 is a diagram showing a configuration example of the evaluation apparatus according to the embodiment. As shown in FIG. 2, the evaluation apparatus 100 according to the embodiment includes a communication unit 110, a control unit 120, and a storage unit 130.

[0023] Note that the evaluation apparatus 100 is not limited to the configuration example shown in FIG. 2. For example, a DMS (Data Management Server) (corresponding to the collection unit 121 described later) collects control data from the pump control apparatus 200, and transmits the control data collected by the DMS through remote data communication to a data storage apparatus on the cloud (corresponding to the storage unit 130 described later). Then, a performance diagnosis apparatus on the cloud (corresponding to the control unit 120 described later) uses the data stored in the data storage apparatus to realize a pump performance evaluation function, and thus the processing of the evaluation apparatus 100 described later may be performed.

[0024] The communication unit 110 is realized by, for example, a NIC (Network Interface Card) or the like. The communication unit 110 is connected to the pump control apparatus 200 by wire or wirelessly to transmit and receive information.

[0025] The storage unit 130 is realized by, for example, a storage device such as a RAM (Random Access Memory) or a hard disk. The storage unit 130 stores data and programs necessary for various processes by the control unit 120. Particularly relevant to the present invention, it has a collected data storage unit 131 and a performance criterion data storage unit 132.

[0026] The collected data storage unit 131 stores the control data of the air-conditioning pump collected by the collection unit 121 described later. Here, referring to FIG. 3, a specific example of the data stored in the collected data storage unit 131 will be described. FIG. 3 is a diagram showing a specific example of the data stored in the storage unit according to the embodiment.

[0027] As shown in FIG. 3, the collected data storage unit 131 is composed of items such as "date and time information", "inverter output", "bypass valve opening", "pressure", "flow rate", and "pump operation information", for example. The "date and time information" stores the time when the pump control device 200 acquires the control data. The "bypass valve opening" stores the measured value of the opening of the bypass valve installed in the flow path. The "inverter output" stores the measured value of the output of the inverter attached to each pump.

[0028] The "pressure" stores the measured value of the discharge pressure of the pump measured by a pressure gauge. The "flow rate" stores the measured value of the flow rate of cold water (hot water) passing through the pipe measured by a flow meter. The "pump operation information" stores the operating status of the pump by storing "1" when the pump is operating and "0" when it is not operating.

[0029] In the example of FIG. 3, the collected data storage unit 131 stores "bypass valve opening: 0%", "inverter output: 80%", "pressure: 125 kPa", "flow rate: 18 m 3 / hour", and "pump operation information: 1" for the control data of "date and time information: 2022 / 04 / 01 12:00".

[0030] Returning to the description of FIG. 2. The performance standard data storage unit 132 stores the performance standards generated by the creation unit 122 described later. Here, referring to FIG. 4, a specific example of the data stored in the performance standard data storage unit 132 will be described. FIG. 4 is a diagram showing a specific example of the data stored in the storage unit according to the embodiment.

[0031] As shown in FIG. 4, the performance standard data storage unit 132 is composed of items such as, for example, "flow rate", "inverter output", "bypass valve opening", "pressure", and "pump operation information". In the example shown in FIG. 4, data on performance standards created to compare "inverter output" and "flow rate" based on control data under the conditions of "bypass valve opening: 0%", "pressure 123 to 128 kPa", and "pump operation information: 1" from the collected data is shown.

[0032] The performance standard data storage unit 132 shown in FIG. 4 stores, for example, values of the inverter output at intervals of 0.5 m 3 / hour from "flow rate: 2 m 3 / hour" as performance standards created by the creation unit 122 described later.

[0033] Returning to the description of FIG. 2, the control unit 120 is realized by various programs stored in the storage device inside the evaluation device 100 being executed with the RAM as a work area by a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like. Further, the control unit 120 is realized by an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). The control unit 120 includes a collection unit 121, a creation unit 122, an extraction unit 123, and an evaluation unit 124.

[0034] The collection unit 121 collects control data of the air-conditioning pump from the pump control device 200 that controls the air-conditioning pump. Then, the collection unit 121 stores the collected control data in the collection data storage unit 131. For example, the collection unit 121 collects, as control data of the air-conditioning pump, any one or more of the opening of the bypass valve, the output of the inverter, the discharge pressure of the pump, and the flow rate, from the pump control device 200. Note that the time interval of the control data collected by the collection unit 121 is, for example, every 1 second or every 1 minute, and an arbitrary value set in advance is set.

[0035] The creation unit 122 creates a performance standard based on the control data during the period to be compared collected by the collection unit 121. For example, the creation unit 122 refers to the data stored in the collected data storage unit 131, extracts the control data in which the measured value of pressure and the value of pump operation information are within a certain range from the data during the comparison target period, and calculates the average of the measured values of the inverter output of the control data in which the measured value of flow rate is within a certain range, thereby creating a performance standard.

[0036] Here, the creation process of the performance standard will be specifically described below. For example, the creation unit 122 first extracts the control data with "pressure: 123 - 128 kPa", "bypass valve opening: 0%", and "pump operation information: 1" from the collected data storage unit 131. Then, for the extracted control data, the creation unit 122 calculates the average value of the measured values of "inverter output" in a plurality of control data indicating " 3 flow rate: 1.75 - 2.25 m 3 / hour". Thereby, the creation unit 122 can calculate the performance standard of "inverter output" under the conditions of "pressure: 123 - 128 kPa", "bypass valve opening: 0%", "pump operation information: 1", and "flow rate: 2 m

[0037] / hour" (see Figure 4). 3 The creation unit 122 varies the measured value of "flow rate" and performs the same process to sequentially calculate the performance standards of "inverter output" after "

[0038] 3 flow rate: 2.5 m

[0038] / hour". As a result, since the creation unit 122 can represent the value of "inverter output" in the comparison target period as a performance standard for each measured value of "flow rate", the evaluation unit 124 described later can compare the value of "inverter output" in the performance standard with the value of "inverter output" in the evaluation target period.The extraction unit 123 extracts control data during the period to be evaluated under the same or similar conditions as the performance criteria created by the creation unit 122. For example, the extraction unit 123 refers to the data stored in the performance criteria data storage unit 132, extracts control data with the same measured values of the flow rate, bypass valve opening degree, pressure, and pump operation information of the performance criteria from the control data during the evaluation target period, and notifies the evaluation unit 124 described later.

[0039] The evaluation unit 124 evaluates the performance of the air-conditioning pump based on the performance criteria created by the creation unit 122 and the control data extracted by the extraction unit 123. Here, below, the processing of the evaluation unit 124 will be described in order with examples of comparing the inverter output and examples of comparing the bypass valve opening degree.

[0040] Note that for the inverter output, when comparing with the same pump performance, the higher the value, the higher the operating energy of the pump and the higher the discharged flow rate. Therefore, when the inverter outputs are different at the same flow rate, it can be determined that the higher the output, the lower the pump performance. Similarly, for the bypass valve opening degree, when comparing with the same pump performance, the higher the value, the higher the flow rate returning to the bypass. Therefore, when the bypass valve opening degrees are different at the same flow rate, it can be determined that the lower the opening degree, the lower the pump performance.

[0041] First, an example of comparing the inverter output will be described. For example, when the output of the inverter in the control data extracted by the extraction unit 123 is higher than the output of the inverter in the performance criteria created by the creation unit 122, the evaluation unit 124 evaluates that the performance of the air-conditioning pump during the period to be evaluated is lower than the performance of the air-conditioning pump during the comparison target period.

[0042] Here, with reference to FIG. 5, the processing content of the example of comparing the "inverter output" will be described. FIG. 5 is a diagram showing a specific example of the evaluation process according to the embodiment. In FIG. 5, an example is shown where "2016" is set as the comparison target period and "2022" is set as the evaluation target period.

[0043] The graph in Fig. 5 shows the relationship between "inverter output" (vertical axis) and "flow rate" (horizontal axis) when the operating conditions of "pressure: 123 - 128 kPa", "bypass valve opening: 0%", and "pump operation information: 1" are unified. Also, in Fig. 5, the points shown in white indicate the measured values of each control data during the comparison target period under the unified conditions, and the points shown in black indicate the measured values of each control data during the evaluation target period under the unified conditions.

[0044] The evaluation unit 124, for example, uses the control data during the comparison target period to create a performance criterion of "flow rate: 17 m 3 / hour" with an "inverter output: 77%", and compares it with the control data "flow rate: 17 m 3 / hour" with an "inverter output: 87%" during the evaluation target period. As a result of the comparison, since the inverter output during the evaluation target period is higher than the inverter output during the comparison target period, the evaluation unit 124 determines that the inverter output has increased due to a decrease in pump efficiency, and evaluates that the pump performance during the evaluation target period is lower than the pump performance during the comparison target period (evaluates that the pump performance has deteriorated).

[0045] Next, an example of comparing the bypass valve opening will be described. The evaluation unit 124, for example, evaluates that the performance of the air-conditioning pump during the period to be evaluated is lower than the performance of the air-conditioning pump during the period to be compared when the opening of the bypass valve in the control data extracted by the extraction unit 123 is lower than the opening of the bypass valve in the performance criterion created by the creation unit 122.

[0046] Here, with reference to Fig. 6, the processing content of the example of comparing the bypass valve opening will be described. Fig. 6 is a diagram showing a specific example of the evaluation process according to the embodiment. In Fig. 6, similar to Fig. 5, an example is shown where "2016" is set as the comparison target period and "2022" is set as the evaluation target period.

[0047] The graph in Figure 6 shows the relationship between the "bypass valve opening degree" (vertical axis) and the "flow rate" (horizontal axis) when the operating conditions of "pressure: 123 - 128 kPa" and "pump operation information: 1" are unified. Also, similar to Figure 5, the points shown in white indicate the measured values of each control data during the comparison target period under the unified conditions, and the points shown in black indicate the measured values of each control data during the evaluation target period under the unified conditions.

[0048] The evaluation unit 124, for example, compares the "bypass valve opening degree: 48%" of "flow rate: 5 m 3 / hour", which is a performance criterion created using the control data during the comparison target period, with the "bypass valve opening degree: 52%" of "flow rate: 5 m 3 / hour" in the control data during the evaluation target period. As a result of the comparison, since the bypass valve opening degree during the evaluation target period is higher than that during the comparison target period, the evaluation unit 124 determines that the bypass valve opening degree has increased due to the increase in pump efficiency, and evaluates that the pump performance during the evaluation target period is higher than that during the comparison target period (evaluates that the pump performance has improved).

[0049] In Figures 5 and 6 described above, an example of evaluating pump performance based on the inverter output and the bypass valve opening degree has been explained. However, it is not limited to this. The evaluation unit 124 can evaluate pump performance, for example, by comparing the flow rates. In this case, the creation unit 122 creates a performance criterion for comparing the flow rates.

[0050] 〔3. Processing Procedure of Evaluation Device 100〕 Next, an example of the processing procedure by the evaluation device 100 according to the embodiment will be described with reference to Figure 7. Figure 7 is a flowchart showing an example of the processing procedure in the evaluation device according to the embodiment. Note that each of the following steps can also be executed in a different order, and there may be some omitted processing. Hereinafter, as an example of the processing, a process of evaluating pump performance by comparing the inverter output will be described.

[0051] The collection unit 121 of the evaluation device 100 collects control data of the air-conditioning pump from the pump control device 200 (S101). Then, the creation unit 122 creates a performance standard based on the control data in the comparison target period (S102). Next, the extraction unit 123 extracts the control data of the evaluation target period under the same or similar conditions as the performance standard (S103).

[0052] After that, the evaluation unit 124 compares the inverter output in the performance standard with the inverter output in the extracted control data (S104). When the value of the inverter output in the extracted control data is higher than the value of the inverter output in the performance standard (S105; Yes), the evaluation unit 124 evaluates that the pump performance in the evaluation target period has deteriorated compared to the comparison target period (S106), and the evaluation device 100 ends the process.

[0053] On the other hand, when the value of the inverter output in the extracted control data is lower than the value of the inverter output in the performance standard (S105; No), the evaluation unit 124 evaluates that the pump performance in the evaluation target period has recovered compared to the comparison target period (S107), and the evaluation device 100 ends the process.

[0054] [4. Effects of the Embodiment] As described above, the evaluation device 100 according to the present embodiment includes a collection unit 121, a creation unit 122, an extraction unit 123, and an evaluation unit 124. The collection unit 121 collects control data of the air-conditioning pump from the pump control device 200 that controls the air-conditioning pump. The creation unit 122 creates a performance standard based on the control data in the period to be compared collected by the collection unit 121.

[0055] The extraction unit 123 extracts the control data in the period to be evaluated under the same or similar conditions as the performance standard created by the creation unit 122. The evaluation unit 124 evaluates the performance of the air-conditioning pump based on the performance standard created by the creation unit 122 and the control data extracted by the extraction unit 123.

[0056] As a result, the evaluation device 100 can collect and store control data from the pump control device 200 that controls the operating conditions of the pump, compare the data under the same conditions, and quantitatively evaluate the pump performance. Therefore, the performance of the air-conditioning pump can be easily evaluated.

[0057] In addition, the collection unit 121 of the evaluation device 100 collects any one or more of the data of the opening degree of the bypass valve, the output of the inverter, the discharge pressure of the pump, and the flow rate as the control data of the air-conditioning pump.

[0058] As a result, the evaluation device 100 can evaluate the pump performance by using the control data obtained by the pump control device 200 to control the pressure of the chilled water (hot water) supplied to the air conditioner. Therefore, there is no need to install new measuring equipment for evaluating the pump performance, and the performance of the air-conditioning pump can be easily evaluated.

[0059] Furthermore, when the output of the inverter in the control data extracted by the extraction unit 123 is higher than the output of the inverter in the performance standard created by the creation unit 122, the evaluation unit 124 of the evaluation device 100 evaluates that the performance of the air-conditioning pump during the period to be evaluated is lower than the performance of the air-conditioning pump during the period to be compared.

[0060] As a result, the evaluation device 100 can determine the high or low pump efficiency based on the high or low output of the inverter when comparing control data other than the inverter output under the same conditions, and appropriately evaluate the pump performance.

[0061] In addition, when the opening degree of the bypass valve in the control data extracted by the extraction unit 123 is lower than the opening degree of the bypass valve in the performance standard created by the creation unit 122, the evaluation unit 124 of the evaluation device 100 evaluates that the performance of the air-conditioning pump during the period to be evaluated is lower than the performance of the air-conditioning pump during the period to be compared.

[0062] As a result, even in an air conditioning system without an inverter, the evaluation device 100 can appropriately evaluate the pump performance by determining the level of pump efficiency based on the level of the bypass valve opening when comparing control data other than the bypass valve opening under the same conditions.

[0063] 〔5. Hardware Configuration〕 The evaluation device 100 according to the above-described embodiment is realized by, for example, a computer 1000 configured as shown in FIG. 8. FIG. 8 is a diagram showing an example of a hardware configuration. The computer 1000 has a form in which a CPU 1100, a RAM 1200, a ROM 1300, an auxiliary storage device 1400, a communication I / F (interface) 1500, and an input / output I / F (interface) 1600 are connected by a bus 1800.

[0064] The CPU 1100 operates based on a program stored in the ROM 1300 or the auxiliary storage device 1400, and controls each part. The ROM 1300 stores a boot program executed by the CPU 1100 when the computer 1000 is started up, a program depending on the hardware of the computer 1000, and the like.

[0065] The auxiliary storage device 1400 stores a program executed by the CPU 1100, data used by such a program, and the like. The communication I / F 1500 receives data from other devices via a predetermined communication network and sends it to the CPU 1100, and sends data generated by the CPU 1100 to other devices via a predetermined communication network.

[0066] The CPU 1100 controls output devices such as a display and a printer, and input / output devices 1700 such as a keyboard and a mouse via the input / output I / F 1600. The CPU 1100 acquires data from the input / output devices 1700 via the input / output I / F 1600. Further, the CPU 1100 outputs the generated data to the input / output devices 1700 via the input / output I / F 1600.

[0067] For example, when the computer 1000 functions as the evaluation apparatus 100 according to the present embodiment, the CPU 1100 of the computer 1000 realizes the functions of the control unit 120 by executing a program loaded on the RAM 1200.

[0068] 〔6. Others〕 Among the processes described in the foregoing embodiments, all or part of the processes described as being automatically performed can be manually performed, or all or part of the processes described as being manually performed can be automatically performed by a known method. In addition, the processing procedures, specific names, and information including various data and parameters shown in the above documents and drawings can be arbitrarily changed unless otherwise specified. For example, the various information shown in each figure is not limited to the illustrated information.

[0069] Also, each component of each illustrated apparatus is a functional concept, and does not necessarily have to be physically configured as shown. That is, the specific form of the distribution and integration of each apparatus is not limited to that shown, and all or part of it can be functionally or physically distributed and integrated in any unit according to various loads, usage situations, and the like.

[0070] The above-described components include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those within the so-called equivalent range. Furthermore, the foregoing embodiments can be appropriately combined as long as the processing contents do not conflict.

[0071] Also, the above-described "section, module, unit" can be read as "means", "circuit", etc. For example, the control unit can be read as a control means or a control circuit.

[0072] As described above, some embodiments of the present invention have been described in detail with reference to the drawings. However, these are merely examples, and the present invention can be implemented in other forms with various modifications and improvements based on the knowledge of those skilled in the art, including the aspects described in the column of the disclosure of the invention.

Description of Symbols

[0073] 100 Evaluation device 110 Communication unit 120 Control unit 121 Collection unit 122 Creation unit 123 Extraction unit 124 Evaluation unit 130 Memory unit 131 Collection data memory unit 132 Performance standard data memory unit 200 Pump control device 211 Heat source machine 212 Air conditioner 213 Pump 214 Inverter 215 Bypass valve 216 Pressure gauge 217 Flow meter

Claims

1. A collection unit that collects control data of an air-conditioning pump from a pump control device that controls the air-conditioning pump; A creation unit that creates a performance standard based on the control data in a period to be compared collected by the collection unit; An extraction unit that extracts the control data in a period to be evaluated under the same or similar conditions as the performance standard created by the creation unit; An evaluation unit that evaluates the performance of the air-conditioning pump based on the performance standard created by the creation unit and the control data extracted by the extraction unit; An evaluation device, characterized by comprising the above.

2. The collection unit collects any one or more data of the opening degree of a bypass valve, the output of an inverter, the discharge pressure of a pump, and the flow rate as the control data of the air-conditioning pump The evaluation device according to claim 1, characterized by the above.

3. When the output of the inverter in the control data extracted by the extraction unit is higher than the output of the inverter in the performance standard created by the creation unit, the evaluation unit evaluates that the performance of the air-conditioning pump in the period to be evaluated is lower than the performance of the air-conditioning pump in the period to be compared The evaluation device according to claim 2, characterized by the above.

4. When the opening degree of the bypass valve in the control data extracted by the extraction unit is lower than the opening degree of the bypass valve in the performance standard created by the creation unit, the evaluation unit evaluates that the performance of the air-conditioning pump in the period to be evaluated is lower than the performance of the air-conditioning pump in the period to be compared The evaluation device according to claim 2, characterized by the above.

5. An evaluation method executed by an evaluation device, comprising: A collection step of collecting control data of an air-conditioning pump from a pump control device that controls the air-conditioning pump; A creation step of creating a performance standard based on the control data in a period to be compared collected by the collection step; An extraction step of extracting the control data in a period to be evaluated under the same or similar conditions as the performance standard created by the creation step; An evaluation step of evaluating the performance of the air-conditioning pump based on the performance standard created by the creation step and the control data extracted by the extraction step; An evaluation method characterized by including [

6. ] A collection procedure for collecting control data of an air-conditioning pump from a pump control device that controls the air-conditioning pump, A creation procedure for creating a performance standard based on the control data during a period to be compared collected by the collection procedure, An extraction procedure for extracting the control data during a period to be evaluated under the same or similar conditions as the performance standard created by the creation procedure, An evaluation procedure for evaluating the performance of the air-conditioning pump based on the performance standard created by the creation procedure and the control data extracted by the extraction procedure, An evaluation program characterized by causing a computer to execute

Images