JPH10300167A - Management control device of air conditioning heat source equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To alleviate the work load of an operation manager by enabling the management control of the air conditioning heat source equipment without the need of experience, objectively and rationally by structuring operation monitoring information, operation planning information and operation evaluation information for the stable and efficient operation of an air conditioning heat source equipment to be representable. SOLUTION: An operation signal input part 24 gathers the operation information of an air conditioning heat source equipment 21 and weather data at predetermined intervals, and an operation state memory part 26 stores the data into a data base 25. At screen displaying the stored data, an operation data input and output part 27 displays the data as an operation monitoring data D1. An operation planning information D2 is acquired by transmitting the processing result obtained by utilizing each of the functions of a load projecting part 28, an accumulated heat computing part 29, an operating performance evaluating part 30 and a limiting condition setting part 1 to an operation plan working out part 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a management and control device for stably and efficiently operating an air conditioning heat source facility.

[0002]

2. Description of the Related Art FIG. 2 is a structural explanatory view showing an example of an air conditioning heat source facility. In FIG. 2, a refrigerator 11 is used as a heat source device.
And a cooling tower 12 are used, and a cold water primary pump 13, a cold water secondary pump 14, and a cooling water pump 15
Is used. 16 is an air conditioner, and 17 is a heat storage tank.
That is, the cold water in the heat storage tank 17 is sent to the refrigerator 11 by the cold water primary pump 13, cooled, and supplied to the heat storage tank 17. The refrigerator 11 is cooled by cooling water circulated by a cooling water pump 15, and the cooling water is radiated by a cooling tower 12. The cold water in the heat storage tank 17 is supplied to the air conditioner 16 by the cold water secondary pump 14, and the load side is cooled by the air conditioner 16.

[0003] Conventionally, in an air conditioning heat source facility comprising such heat source equipment, transfer equipment, air conditioning equipment 16 and heat storage tank 17, a skilled operation manager has been required to provide an air conditioning heat source based on past experience and operation results. It was common to perform management or control processing of equipment. In addition, in order to reduce the workload of the operation manager on the air conditioning heat source equipment, automation of management processing or control processing has been attempted, but conventionally, performance degradation of the air conditioning heat source equipment due to long-term operation has been attempted. Without considering the control process, the control process is performed using the initial performance value of the air conditioning heat source equipment or the performance value in an ideal operation state as it is.

[0004]

However, according to the conventional method, in order for the operation manager to manage and control the air-conditioning heat source equipment based on his / her own past experience, the starting or stopping of the equipment determined by the operation manager is performed. There was a problem that timing was not always objective and rational. Further, even if the performance of the refrigerator 11 is reduced by half compared to the rated value, if the refrigerator 11 is regarded as normal and the control is performed at the rated value, the energy supply of the air-conditioning heat source equipment is reduced. There has also been a problem that the control and management of the air-conditioning heat source equipment are not maintained in a consistent manner, such as a shortage in quantity.

[0005] The present invention has been made in view of the above circumstances, and the management control of the air-conditioning heat source equipment does not require the skill of the operation manager, and the criteria for the operation manager to perform the management control objectively. It is an object of the present invention to provide a management and control device for an air conditioning heat source facility that can be made reasonably and maintains consistency between control and management of the air conditioning heat source facility.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to an air conditioning heat source equipment comprising a heat source equipment, a transfer equipment, an air conditioning equipment, and a heat storage tank. An operation signal input section for periodically monitoring and collecting via the communication means, an operation signal output section for transmitting an operation output to the air conditioning heat source equipment via the data communication means, and past and current operation of the air conditioning heat source equipment An operation state storage unit that accumulates results, a load prediction unit that performs heat load prediction of the air conditioning heat source equipment up to a predetermined time ahead based on a forecast value related to weather conditions, and a heat storage amount that calculates a heat storage amount in the heat storage tank. An operation unit, an operation performance evaluation unit that evaluates the performance of the air conditioning heat source equipment and the performance of individual devices constituting the air conditioning heat source equipment, and, when operating the air conditioning heat source equipment, A constraint setting unit that considers the execution of the slowest start of each device to be formed or the prohibition of simultaneous start / stop, an operation state storage result of the operation state storage unit, a load prediction result of the load prediction unit, An operation plan formulation unit that creates an operation plan of the air conditioning heat source equipment based on the heat storage amount calculation result of the heat storage amount calculation unit, the operation performance evaluation result of the operation performance evaluation unit, and the constraint condition setting result of the constraint condition setting unit, Operation monitoring information for operating the air conditioning heat source equipment,
An optimal management control device for air-conditioning heat source equipment was constructed, which was provided with an operation information input / output unit having means for visually presenting operation plan information and operation evaluation information to the operation manager and inputting the judgment of the operation manager. .

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration explanatory view showing an embodiment of a management control device for an air conditioning heat source facility according to the present invention. The management control device 22 of the air-conditioning heat source equipment 21 sends the operation monitoring information D to the operation manager 23 of the air-conditioning heat source equipment 21.
1. Provide operation plan information D2 and operation evaluation information D3.

[0008] The operation monitoring information D1 is input to the operation signal input unit 24.
The processing result obtained by utilizing the functions of the operation state storage unit 26 having the database 25 is acquired by transmitting the processing result to the operation information input / output unit 27.

In the operation signal input section 24, the air conditioning heat source equipment 2
Collect the operation data of No. 1. That is, a measurement signal related to the operating state measured by the sensor mounted on the air conditioning heat source equipment 21 is received via the data communication means. For example, as shown in FIG. 2, the air conditioning heat source equipment 21 includes a refrigerator 11 and a cooling tower 12 as heat source devices, a chilled water primary pump 13 and a chilled water secondary pump 14 and a cooling water pump 15 as transporting devices, an air conditioning device 16, The operation signal input unit 24 detects ON / OFF states of individual devices constituting the air conditioning heat source equipment 21 and operation states such as temperature, flow rate, and pressure. In the operation signal input unit 24,
Collect weather data such as maximum and minimum outside air temperature and humidity.

The operating state storage unit 26 uses the measurement signal from the operating signal input unit 24 as operating data in the database 2
5, and various evaluation data relating to the air conditioning heat source equipment 21 using the operation data.

The operating state storage unit 26 is provided with data management means for efficiently managing the operating data and the evaluation data, so that a data reference request or data transfer from another processing function unit of the management control unit 22 is provided. Respond smoothly to requests.

FIG. 3 is a flowchart showing an example of the operation monitoring information D1 according to the present invention. That is, in the case of the monitoring cycle of monitoring every 10 minutes, the operation signal input unit 24 collects the operation data of the air conditioning heat source equipment 21 every 10 minutes and collects the weather data at that time. The data collected by the operation signal input unit 24 is stored in the database 25 in the operation state storage unit 26. When displaying the data of the operation state storage unit 26 on the screen, the data is supplied from the operation state storage unit 26 to the operation information input / output unit 27, displayed as operation monitoring information D1, and provided to the operation manager 23.

Next, the operation plan information D2 will be described. The operation plan information D2 includes a load prediction unit 28, a heat storage amount calculation unit 2
9. The processing results obtained by using the functions of the driving performance evaluation unit 30 and the constraint condition setting unit 31 are transmitted to the operation plan formulation unit 32, and the processing results in the operation plan formulation unit 32 are further transmitted to the operation information input / output unit. 27 by sending to

The load prediction unit 28 learns the correlation between past weather conditions and the heat load pattern of the air conditioning heat source equipment 21, and, based on the forecast values relating to the weather conditions on the day of prediction input from the operation manager 23, The heat load pattern up to 24 hours ahead is predicted.

The heat storage amount calculating section 29 calculates the amount of heat stored in the heat storage tank 17 based on the measured value of the temperature distribution in the heat storage tank 17 in the operation data. The operation performance evaluation unit 30 evaluates the performance (efficiency) of the air conditioning heat source equipment 21 and the performance (efficiency) of each device constituting the air conditioning heat source equipment 21 at the time of operation planning.

In the constraint condition setting unit 31, the air conditioning heat source equipment 2
At the time of the first operation, the execution of the slowest start of the individual devices constituting the air-conditioning heat source equipment 21, for example, the plurality of refrigerators 11, or the prohibition of simultaneous start / stop are considered.

The operation plan formulating section 32 calculates a load prediction result of the load predicting section 28 and a heat storage amount calculating section 2 which are obtained in advance.
9 based on the heat storage amount calculation result of FIG.
Air conditioning heat source equipment 21 to prevent shortage of heat storage within hours
The heat storage plan and the heat release plan are created, and based on the operation state storage result of the operation state storage unit 26, the operation performance evaluation result of the operation performance evaluation unit 30, and the constraint condition setting result of the constraint condition setting unit 31, economical In addition, an operation plan of the air-conditioning heat source equipment 21 which is optimal in terms of energy saving is created.

FIG. 4 is a flowchart showing an example of a process up to the output of the operation plan information D2 according to the present invention. That is, in the case of a planning cycle in which the air conditioning heat source equipment 21
And the weather data, and collects the collected data in the operation state storage unit 26 into the database 2.
Read into 5. Next, the load prediction unit 28 predicts a heat load pattern up to 24 hours ahead. Next, the heat storage amount calculation unit 29 calculates the amount of heat currently stored in the heat storage tank 17 and calculates the required amount of heat storage and heat radiation. Next, in the operation performance evaluation unit 30, the current air conditioning heat source equipment 2
Analyze the driving performance of No. 1. Next, the constraint condition setting unit 31 determines whether the air conditioner heat source equipment 21 can be operated according to the constraint conditions. Next, an operation plan of the air conditioning heat source equipment 21 is created in the operation plan formulation unit 32. When displaying the data of the operation plan formulation unit 32 on the screen, the data is supplied from the operation plan formulation unit 32 to the operation information input / output unit 27, displayed as operation plan information D2, and provided to the operation manager 23.

Next, the operation evaluation information D3 will be described. The driving evaluation information D3 is obtained by transmitting a processing result obtained by using the functions of the driving state storage unit 26 and the driving performance evaluation unit 30 to the driving information input / output unit 27. The operation performance evaluation unit 30 evaluates the performance of the air-conditioning heat source equipment 21 and the performance of each device constituting the air-conditioning heat source equipment 21 at the time of the operation planning for the purpose of creating the operation plan information D2, and based on the past operation history. Air conditioning heat source equipment 21
And the changes in the performance of the individual devices constituting the air conditioning heat source equipment 21 are evaluated over time. If any abnormality is detected in the operation state as a result of the evaluation, maintenance information is provided.

FIG. 5 is a flowchart showing an example of a process up to the output of the driving evaluation information D3 according to the present invention. That is, in the case of the evaluation cycle in which the evaluation is performed every predetermined period, the air conditioning heat source equipment 21 is operated in the operation signal input unit 24 every predetermined period.
And the weather data, and collects the collected data in the operation state storage unit 26 into the database 2.
Read into 5. Next, based on the past operation history, the operation performance evaluation unit 30 evaluates the performance of the air-conditioning heat source equipment 21 and changes in the performance of each device constituting the air-conditioning heat source equipment 21 with time, and stores the evaluation data in the database 25. Read in. If any abnormality is detected in the operation state as a result of the evaluation, the maintenance guidance is displayed and the operation manager 23 is displayed.
Provide conservation information to When it is necessary to display the evaluation data on the screen, the evaluation data is supplied to the driving information input / output unit 27 and displayed as driving evaluation information D3.
To provide.

The management control device 22 not only provides the operation monitoring information D1, the operation plan information D2, and the operation evaluation information D3 to the operation manager 23 of the air conditioning heat source equipment 21 described above, but also provides the air conditioning heat source equipment 21. The most suitable operation output information D4 is transmitted from the viewpoint of economy or energy saving.

The operation output information D4 is stored in the operation plan
2. Acquired by using the functions of the operation information input / output unit 27 and the operation signal output unit 33. Operation signal output unit 33
Then, a control signal for operating the air conditioning heat source equipment 21 is transmitted to the air conditioning heat source equipment 21 via the data communication means.
The operation information input / output unit 27 visually presents operation monitoring information D1, operation plan information D2, and operation evaluation information D3 for operating the air-conditioning heat source equipment 21 to the operation manager 23, and makes a judgment of the operation manager 23. A means for inputting is provided.

In the above-described embodiment, the air conditioning heat source equipment shown in FIG. 2 has been described as an example. However, the present invention is not limited to the configuration shown in FIG. 2 and can be applied to various air conditioning heat source configurations. It is possible.

[0024]

As described above, according to the present invention, in an air-conditioning heat source equipment comprising a heat source equipment, a transfer equipment, an air-conditioning equipment, and a heat storage tank, an operation for stably and efficiently operating the air-conditioning heat source equipment. Providing monitoring information, operation plan information, and operation evaluation information to the operation manager to reduce the workload of the operation manager and to control the air-conditioning heat source equipment optimally from an economic or energy-saving perspective. Becomes possible.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a configuration of an embodiment of a management control device for an air conditioning heat source facility according to the present invention.

FIG. 2 is a configuration explanatory view showing an example of an air conditioning heat source facility.

FIG. 3 is a flowchart showing an example up to output of operation monitoring information according to the present invention.

FIG. 4 is a flowchart showing an example up to output of operation plan information according to the present invention.

FIG. 5 is a flowchart illustrating an example of a process up to output of driving evaluation information according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Refrigerator 12 Cooling tower 13 Cold water primary pump 14 Cold water secondary pump 15 Cooling water pump 16 Air conditioning equipment 17 Heat storage tank 21 Air conditioning heat source equipment 22 Management control device 23 Operation manager 24 Operation signal input part 25 Database 26 Operation state storage part 27 Operation information input / output unit 28 Load prediction unit 29 Heat storage amount calculation unit 30 Operation performance evaluation unit 31 Constraint condition setting unit 32 Operation plan formulation unit 33 Operation signal output unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Izawa 3-9-14 Kudanminami, Chiyoda-ku, Tokyo Daidan Corporation Technical Center (72) Inventor Reiji Yamashita 390 Kita-Nagai, Miyoshi-cho, Iruma-gun, Saitama (72) Inventor Hojin Kashiwagi 390 Kita-Nagai, Miyoshi-machi, Iruma-gun, Saitama Prefecture Dai-Dan Corporation (72) Inventor Kazuhide Shimata 390 Kita-Nagai, Miyoshi-cho, Iruma-gun, Saitama Daidan Corporation

Claims (1)

[Claims] 1. An air conditioning heat source equipment comprising a heat source equipment, a transport equipment, an air conditioning equipment, and a heat storage tank, wherein an operation signal input for periodically monitoring and collecting the operation state of the air conditioning heat source equipment via data communication means. Unit, an operation signal output unit that transmits an operation output to the air conditioning heat source equipment via a data communication unit, an operation state storage unit that accumulates past and current operation results of the air conditioning heat source equipment, A load prediction unit that performs a heat load prediction up to a predetermined time ahead based on a forecast value related to a weather condition; a heat storage amount calculation unit that calculates a heat storage amount in the heat storage tank; a performance of the air conditioning heat source equipment and the air conditioning heat source equipment An operation performance evaluation unit that evaluates the performance of the individual devices constituting the device, and when the air conditioning heat source device is operated, execution of the latest start of the individual devices constituting the air conditioning heat source device, or Constraint setting unit that considers the prohibition of start-up / simultaneous stop, an operation state storage result of the operation state storage unit, a load prediction result of the load prediction unit, a heat storage amount calculation result of the heat storage amount calculation unit, and the operation performance. An operation plan formulation unit that creates an operation plan of the air conditioning heat source equipment based on the operation performance evaluation result of the evaluation unit and the constraint condition setting result of the constraint condition setting unit, operation monitoring information for operating the air conditioning heat source equipment, An operation information input / output unit having means for visually presenting operation plan information and operation evaluation information to the operation manager and inputting the judgment of the operation manager; Control device.