TWI463101B - Air conditioning control device, air conditioning system, air conditioning control method, and record the air conditioning control program recording media - Google Patents

Description

Air conditioning control device, air conditioning system, air conditioning control method, and recording medium recording air conditioning control program

The present invention relates to an air conditioning control device that controls an air conditioner such as an office or a residence, and an air conditioning control system using the same.

The energy consumed by the entire building equipment, such as the office or residence, is about half of the energy associated with air conditioning. Therefore, the promotion of energy-saving for air-conditioning control has greatly contributed to the energy-saving of construction equipment.

In view of the above, Patent Document 1 discloses a technique for utilizing an air conditioning system that is optimized for energy-saving air-conditioning operation in construction equipment.

The technique of Patent Document 1 is based on the energy consumed by the air conditioner, which consumes energy consumed by a heat source machine that generates hot and cold water, and the energy consumed by a fan that sends air that has been heat exchanged in the air conditioning coil, will come from The hot water of the heat source machine is used to supply the energy of the pump, and the target value of the coil temperature of the air conditioner coil and the target value of the hot and cold water temperature of the heat source unit are required to be the smallest, and the province can be efficiently performed. Energy-efficient air conditioner Running.

[Patent Document 1] Japanese Patent Laid-Open No. 2004-69134.

In the room to be controlled by the air conditioner, it is required to ensure the so-called comfort in order to satisfy the warm feeling of the indoors. However, this "energy-saving promotion" and "ensure the comfort of indoors" are in a trade off relationship. That is to say, if the energy saving is promoted, the comfort of the indoors is mostly reduced.

However, by suppressing excessive energy consumption exceeding the range of comfort of the person indoors, it is possible to suppress unhelpful energy consumption.

In view of the above, an object of the present invention is to provide an air conditioning control device and an air conditioning control system using the same, which can efficiently save energy while taking into consideration the comfort of the indoors. Chemical.

In order to achieve the above object, an air conditioning control device according to a first aspect of the present invention is used in an air conditioning system including an air conditioner and a heat source device, the air conditioner having a coil for circulating air and a control object for air conditioning. In the room or in the control area of the room, the air supply fan supplies the cold air or the hot water to the air conditioner, and the measurement device acquisition unit is configured to obtain the air conditioning control target indoor or indoor. The temperature measurement of the control area and the hygrometer measurement; and the comfort average prediction value (PMV) range memory is the memory of the PMV. The air-conditioner set value calculation unit is configured to calculate the PMV value by using the temperature measurement value, the humidity measurement value, and the predetermined wind speed value in the room to be controlled by the air-conditioning control or in the control area of the room. In the target setting range, the temperature and humidity of the air supplied from the air conditioner are calculated so as to include at least the total energy consumption of the heat source device, the circulating air coil of the air conditioner, and the air conditioning control system of the air blowing fan. When the calculated PMV value exceeds the target set value, the wind speed value is changed; and the set value signaling unit sets the set value of the blower fan to the predetermined wind speed value or the changed wind speed. The set value of the blower fan is transmitted to the air conditioner, and the control value transmitting unit calculates the water of the cold water or the hot water based on the temperature and humidity calculated by the air conditioner set value calculating unit. After the temperature setting value or the flow rate value is sent to the heat source device.

Further, an air conditioning control system according to a second aspect of the present invention includes an air conditioner, a heat source device, and an air conditioning control device, and the air conditioner includes a coil for circulating air and an indoor or indoor room for air conditioning control. a blower fan that blows air in the control area, the heat source device supplies cold water or hot water to the air conditioner, and the air conditioner control device controls the operation of the air conditioner and the heat source device, wherein the air conditioner control device includes a measurement value acquisition unit. The temperature measurement value and the hygrometer measurement value of the indoor air conditioning control target or the indoor control area; and the comfort average predicted value (PMV) range memory unit, which is the target setting range of the memory PMV; and the air conditioner setting The value calculation unit is configured to use the temperature measurement value in the room to be controlled by the air conditioner or in the control area in the room, When the PMV value calculated by the humidity meter value and the predetermined wind speed value is within the target setting range, the temperature and humidity of the air supplied from the air conditioner are calculated so as to include at least the heat source device and the air conditioner for the circulating air. The total value of the energy consumption of the air conditioning control system of the coil and the air blowing fan is the smallest, and when the calculated PMV value exceeds the target setting value, the wind speed value is changed; and the set value transmitting unit is to let the air supply The setting value of the fan is the predetermined wind speed value or the changed wind speed value, and the set value of the blower fan is transmitted to the air conditioner; and the control value transmitting unit is calculated based on the air conditioner setting value calculating unit. The temperature and humidity are calculated by the water temperature setting value or the flow rate value of the cold water or the hot water, and then sent to the heat source device.

According to the air conditioning control device and the air conditioning control system using the same, it is possible to efficiently save energy by taking into consideration the comfort of the indoors.

A‧‧‧ Building

1‧‧‧Air conditioning control system

2‧‧‧Air conditioning control system

3‧‧‧Air conditioning control system

4‧‧‧Air conditioning control system

5‧‧‧Air conditioning control system

10‧‧‧Air conditioner

11‧‧‧External air cooling coil

12‧‧‧Circular air cooling coil

13‧‧‧Air supply fan

14‧‧‧Valve

15‧‧‧ valve

16‧‧‧ valve

17‧‧‧ valve

20‧‧‧ Temperature Sensor

30‧‧‧Humidity sensor

40‧‧‧Central heat source unit

40'‧‧‧2nd central heat source unit

41‧‧‧Freezer

42‧‧‧Cooling tower

43‧‧‧Water pump

50‧‧‧Air conditioning joint control device

[Fig. 1] A general view showing a configuration of an air conditioning control system formed in a first embodiment to a fifth embodiment of the present invention.

[Fig. 2] A configuration diagram showing a detailed configuration of an air conditioning control system formed in the first embodiment to the third embodiment of the present invention.

[Fig. 3] A sequence diagram showing the operation of the air conditioning control system formed in the first embodiment to the fifth embodiment of the present invention.

[Fig. 4] In the air conditioning control system formed in the first embodiment to the fifth embodiment of the present invention, the PMV value used is judged to be comfortable. The relationship between the room temperature and the indoor humidity at the right time is shown as a line graph.

[Fig. 5] The air conditioning control system according to the third embodiment of the present invention is a damper for supplying air to the external air cooling coil 11, the circulating air cooling coil 12, and the blower fan 13 ( Damper) The change in the amount of external air taken in, which is represented by a line graph.

[Fig. 6] A configuration diagram showing a detailed configuration of an air conditioning control system formed in a fourth embodiment of the present invention.

[Fig. 7] A configuration diagram showing a detailed configuration of an air conditioner of an air conditioning control system formed in a fifth embodiment of the present invention.

[Fig. 8] A conceptual diagram showing the cold water flow path of the external air cooling coil and the circulating air cooling coil of the air conditioner formed in the fifth embodiment of the present invention.

Embodiments of the air conditioning control system of the present invention will be described with reference to the drawings. In addition, many office buildings and the like have been widely used in the cold room mode throughout the year because of their excellent heat insulation and numerous PC or OA machines. Therefore, in each of the following embodiments, the case where the air-conditioning control is performed in the cold room mode will be mainly described.

<<First embodiment>> <Configuration of Air Conditioning Control System Formed by First Embodiment>

A general view of the air conditioning control system 1 formed in the first embodiment of the present invention is shown in Fig. 1.

Further, in the case of a large building, since the indoors are large, the indoors are divided into a plurality of control areas, and a plurality of air conditioners are installed in the machine room near the indoors in accordance with the individual control areas. Even in such a case, in order to simplify the following, it is also decided to refer to each control area as indoors.

The air conditioning control system 1 is for controlling the air conditioner in the building A of the air conditioning object. The air conditioning control system 1 includes an air conditioner 10 installed in each room in the building A, and a temperature sensor 20 for transmitting a measured value to each of the air conditioners 10 in order to measure the room temperature. The humidity sensor 30 is installed in each room and measures the humidity in the room to transmit the measured value to each air conditioner, and is installed in each room and the central heat source device 40, and is supplied to each of the indoor heat source devices 40. The cold water of the air conditioner 10 is managed, and the air conditioning unit control device 50 as an air conditioner control device receives the room temperature measurement value received by each air conditioner 10 and the indoor humidity measurement value, and the central heat source is received. The operation of the device 40 and each of the air conditioners 10 is controlled.

Each of the air conditioners 10 obtains measured values from the temperature sensor 20 and the humidity sensor 30, and transmits the measured values to the air conditioning unit control device 50. In addition, as shown in FIG. 2, each of the air conditioners 10 includes an external air cooling coil 11 that uses the cold water supplied from the central heat source unit 40 to dehumidify and cool the outside air. The circulating air cooling coil 12 is configured to cool the sensible heat from the illumination, the OA machine, the human body, and the like in the circulating air in the room by using the cold water supplied from the central heat source device 40, and the blower fan 13, the outside air cooled by the external air cooling coil 11 and the circulating air cooled by the circulating air cooling coil 12 are mixed, and air is sent to the respective rooms.

The central heat source device 40 includes a refrigerator 41 that generates cold water, and a cooling tower 42 that is used for cooling the water whose temperature has risen while being cooled by the refrigerator 41, so that it is cooled by air. The water supply pump 43 is configured to carry cold water between the refrigerator 41 and each of the air conditioners 10 or the cooling tower 42.

The air-conditioning unit control device 50 obtains measured values from the temperature sensor 20 and the humidity sensor 30 that are sent from the air conditioners 10. Then, the air-conditioning unit control device 50 is a cooling tower 42 of the central heat source device 40, the refrigerator 41, the water supply pump 43, and the external air cooling disk of the air conditioner 10 within the range of the comfort index set in advance. The total value of the energy consumption of the tube 11, the circulating air cooling coil 12, and the blower fan 13 is minimized, and the optimum room temperature setting value and the humidity setting value in each room are calculated. Further, the air-conditioning unit control device 50 transmits the respective calculation results to the air conditioners 10 and the central heat source unit 40.

<Operation of Air Conditioning Control System Formed by First Embodiment>

The operation of the air-conditioning control system 1 according to the first embodiment will be described with reference to the sequence diagram of Fig. 3.

First, the air conditioning control in the building A is started. Next, each temperature sensor 20 measures the temperature of each room to sense each humidity. The device 30 measures the humidity in each room. Then, the measured values of the temperature and humidity of the respective chambers are transmitted to the air conditioner 10 (S1) already provided in each room.

These measured values are transmitted from the air conditioner 10 to the air-conditioning unit control device 50 (S2) after the air conditioners 10 have been received.

The air-conditioning unit control device 50 is a central heat source device in which the PMV (Predicted Mean Vote) is in a comfortable range among the measured values that have been received, and the energy consumption is all required. The total value of the energy consumption of the cooling tower 42, the refrigerator 41, the water supply pump 43, and the external air cooling coil 11, the circulating air cooling coil 12, and the air blowing fan 13 of the air conditioner 10 is the smallest. Then, the most suitable room temperature setting value and humidity setting value in each room are calculated (S3).

Here, the calculation of the PMV used for each value will be described.

The so-called PMV is a variable that affects the human body's warm and cold sensation, and is based on (a) air temperature, (b) relative humidity, (c) average radiant temperature, (d) airflow velocity, (e) The comfort index obtained by the amount of activity (the internal heat generation of the human body) and (f) the six variables of the amount of clothing.

The calorific value of a person is expressed by the sum of the amount of radiation generated by convection, the amount of heat generated by radiation, the amount of heat of evaporation from a person, the amount of heat generated by breathing, and the amount of stored heat. Then, in the case where the heat is in a state of thermal equilibrium, the human body becomes neutral in heat. Therefore, the indoor system becomes a comfortable state that is neither cold nor hot to the human body. Conversely, when the calorific value is from heat balance to collapse, the human body will feel hot or cold.

Professor Fanger of the Danish Polytechnic University published the export method of the comfortable equation in 1967. Then, using these as a starting point, statistical analysis is performed from the inquiry survey of a large number of subjects, and the heat load of the human body is connected with the warmth of the human body, and PMV is proposed. This PMV was elected as an ISO specification in 1994 and has been used recently.

The PMV that becomes the indicator of the warmth and coldness is a value formed by the 7th-order evaluation scale, and is expressed by the following means: +3: heat, +2: warm, +1: slightly warmer, 0: not biased to either side, Comfortable, -1: slightly cool

-2: cool

-3: cold

In addition, human comfort PMV values range from -0.5 to +0.5.

Among the above six variables, the activity amount indicating the work intensity is unity using MET as the unit and the amount of clothing using clo.

The unit met system expresses the amount of metabolism, and metabolizes it in a state of comfort in the heat state as a reference value. Here, 1met is represented by the following formula (1).

[Number 1] 1 met = 58.2 W / m ² = 50 kcal / m ² . h...(1)

In addition, the unit clo indicates the thermal insulation of the clothes, and the 1 clo is in a room where the temperature is 21 ° C, the relative humidity is 50%, and the air flow is 5 cm / S or less. The heat release from the body surface is like the metabolism and balance of 1met. The value of the state of dressing. When this is converted into a normal thermal resistance value, it is represented by the following formula (2).

[Number 2] 1 clo = 0.155 m ² . °C/W=0.180m ² . h. °C/kcal...(2)

Next, the calculation formula of the PMV value is expressed by the following formula (3).

[Number 3] PMV = (0.352e - ^{0.042M / A} + 0.032). L...(3)

Here, M: activity amount [kcal/h], A: body surface area [m ² ], L: body heat load [kcal/m ² h] (calculated by the comfort equation of Fanger). Using this formula (3), in the comfort range (-0.5<PMV<+0.5), the PMV value on the hot side of the cold room, and the PMV value on the cold side of the greenhouse, the individual PMV target The value is set. In this case, it is possible to reduce the air conditioning load and achieve energy saving.

Next, the calculation of the most suitable set value of the air conditioner 10 will be described.

The total consumed energy consumed in the air-conditioning unit control device 1 is the cooling tower 42 of the central heat source device 40, the refrigerator 41, the water supply pump 43, and the external air cooling coil 11 of the air conditioner 10 as described above. The total value of the individual energy consumption of the circulating air cooling coil 12 and the air blowing fan 13.

Then, the algorithm for calculating the set value of the air conditioner 10 so that the total consumed energy consumed in the air-conditioning control system 1 is minimized is as described in the specification of JP-A-2008-232507. This method is based on the measured values of various sensors used in air conditioning control to estimate the amount of state necessary for the optimization of the air conditioner, for example, heat generated in the room, amount of water vapor generated in the room, and heat exchanger. The physical quantity such as the product of the heat transfer coefficient and the heat transfer area. This processing can be set as the most appropriate control for predicting the entire air conditioning system. In addition, as another algorithm, there is a method as described in JP-A-2008-256258. In this approach, the provisional total air conditioning load is calculated from the amount of heat exchange between the current heat source machine and the cold water coil in the initial stage. Then, the total air conditioning load is set to a variable, and the air conditioning system of the air conditioning system is controlled according to the optimum operating state amount of the air conditioning system. Then, when the air state of the air-conditioning control target space is substantially equal to the set air-conditioning condition, the total air-conditioning load is calculated and the optimum operating state amount is determined. As a result, the air conditioner is operated efficiently, and energy saving of the air conditioning system can be achieved.

In the first embodiment, as described above, the total energy consumption in the air conditioning control system 1 is within the range of -0.5 to +0.5 in which the PMV value is comfortable. The minimum amount is used to calculate the optimum setting value of the air conditioner 10, and the set value is transmitted to the air conditioner 10 and the central heat source unit 40 (S3).

Then, when the optimum setting value of the air conditioner 10 is acquired in the central heat source device 40, the cold water necessary for the setting value is supplied to the air conditioner 10 (S4). As a result, the air adjusted in consideration of the comfort of the indoors is supplied to the room to be controlled by the air conditioner (S5).

Here, the operation of the air conditioner 10 when the air that has been adjusted is supplied to the indoor air-conditioning control room will be described.

When the cold room is treated by the air conditioning control system, there are two functions implemented in the air conditioner: the function of dehumidifying and cooling the fresh external air taken into the building for the occupant (the latent heat cold room load), and The sensible heat of the interior of the building, the OA machine, the human body, etc., is cooled (the sensible cold room load).

When the cold room is carried out by the conventional air conditioner, the above two functions are simultaneously performed by mixing the outside air and the circulating air. However, in this case, mainly only the outside air needs to be dehumidified. Therefore, the necessary cold water temperature and flow rate are different in individual functions. Therefore, it is more efficient to implement the above two functions individually.

Then, as shown in Fig. 2, in the first embodiment, the external air cooling coil 11 for dehumidifying and cooling the outside air and the circulating air cooling coil 12 for cooling the circulating air are provided. . Then, cold water suitable for the respective controlled temperature and flow rate is supplied.

According to the first embodiment described above, the outside air and the indoor circulating air are additionally adjusted while taking into consideration the comfort of the indoors, and the total required energy consumption in the system is minimized. controlled. Therefore, it is possible to perform energy-saving air-conditioning control that efficiently consumes energy.

<<Second Embodiment>> <Configuration of Air Conditioning Control System Formed by Second Embodiment>

The configuration of the air conditioning control system 2 according to the second embodiment of the present invention is the same as that of the first embodiment shown in Figs. 1 and 2 . Therefore, the detailed description of the configuration of the second embodiment will be omitted.

<Operation of Air Conditioning Control System Formed by Second Embodiment>

The operation of the air-conditioning control system 2 of the second embodiment is the same as that of the first embodiment except for the calculation of the set values of the air conditioners 10 in the step S3 of Fig. 3 . Therefore, the detailed description of the same portions as those of the first embodiment will be omitted.

In the second embodiment, in the step S3 of the third embodiment, the air-conditioning unit control device 50 calculates the set value of the air conditioner 10 so that the required energy consumption is minimized in a range where the PMV is comfortable. Time processing.

In the fourth figure, it is shown that when the wind speed in the office is 0.1 m/s, the PMV value is in the energy-saving state in the cold room, and becomes a comfortable relationship between room temperature of 0.3 to 0.5 and indoor humidity. In Figure 4, in When the room temperature of the range A surrounded by the thick line and the humidity of the room are in a state, the PMV value is 0.3 to 0.5 (the humidity is limited to 20% to 80%).

On the one hand, in Japan, the government recommends: in order to reduce greenhouse gases, the summer air conditioning temperature is set to 28 °C.

However, in this case, as is understood from Fig. 4, in the case where the room temperature is 28 ° C, even if the humidity becomes low, the PMV value becomes much larger than the upper limit of the comfortable range for humans. .

However, if the indoor wind speed is 0.5 m/s, the PMV becomes +0.5 or less (about 0.43) even if the room temperature is 28 ° C and the humidity is 40%.

Therefore, in the second embodiment, the maximum wind speed is 0.5 m/s at the center position of the height of the human body (from the floor to the vicinity of 1 m), and the swaying wind is the air blowing portion of the air conditioner 10. Initially, it is supplied to the indoors of the air-conditioning control object.

Since the supplied wind system has a swaying wind, the average wind speed can be set to be much lower than 0.5 m/s. Therefore, even if the room temperature is set to 28 ° C, the energy consumption of the blower fan 13 is not greatly increased, and comfortable air-conditioning control can be provided to the indoor person.

According to the second embodiment described above, the optimum setting value of the air conditioner 10 is also calculated by taking into consideration the wind speed of the air blown from the air conditioner 10. Therefore, it is possible to perform air conditioning control that is more efficient and that consumes energy and maintains energy and comfort.

<<Third embodiment>> <Configuration of Air Conditioning Control System Formed by the Third Embodiment>

The air conditioning control system 3 according to the third embodiment of the present invention is configured such that a carbon dioxide sensor (not shown) or a presence sensor is provided in a room to be controlled by the air conditioner (none) At least one of the illustrations). The other configuration is the same as the first embodiment shown in Figs. 1 and 2 . Therefore, the detailed description of the same portions as those of the first embodiment will be omitted.

The carbon dioxide sensor measures the concentration of carbon dioxide in the room discharged from the indoors and sends it to the air conditioner 10. In addition, the presence sensor detects the number of people indoors in the room to which the air conditioner is controlled, and transmits it to the air conditioner 10.

<Operation of Air Conditioning Control System Formed by the Third Embodiment>

The operation of the air-conditioning control system 3 according to the third embodiment will be described with reference to FIG.

First, the air conditioning control in the building A is started. Next, each temperature sensor 20 measures the temperature in the room, and each humidity sensor 30 measures the humidity in the room. At the same time, the carbon dioxide sensor measures the concentration of carbon dioxide in the room, or the number of sensors in the room is detected. The measured values measured by the respective sensors are transmitted to the air conditioners 10 in the individual rooms (S1).

Each of the air conditioners 10 receives the measurement values sent from the respective sensors, and further transmits the signals to the air-conditioning unit control device 50 (S2).

In the third embodiment, the air conditioning combined control device is described in such a manner that the required energy consumption is minimized in a range where the PMV is comfortable. 50 is a process in which the optimum setting value of each air conditioner 10 is calculated.

In the air-conditioning unit control device 50 of the third embodiment, according to the diagram shown in FIG. 5, it is controlled to supply air to the outside air cooling coil 11, the circulating air cooling coil 12, and the blower fan. 13 damper opening.

As shown in Fig. 5, at the time of starting the air conditioning (a), the damper of the circulating air cooling coil 12 is fully opened, and the damper toward the external air cooling coil 11 is fully closed. Therefore, the exhaust of the indoor air toward the outside air is in an unexecuted state. Then, after a certain period of time, the exhaust toward the room is started. Therefore, when the minimum external air is selected by the temperature and humidity of the outside air and the temperature and humidity of the circulating air, the minimum external air is selected (b) to the middle outside air (c)~ At any one of the maximum external air (d), the opening of each damper is controlled.

When selecting this minimum external air (b) ~ intermediate outside air (c) ~ maximum outside air (d), when the indoor is required for the cold room, the external air is lower than the indoor In the case where the energy is taken in to take in the outside air, it is effective to introduce the outside air to control the opening degree of the damper. Therefore, the amount of cold water used for the circulating air cooling coil 12 can be reduced.

Here, in the case where the load system of the external air cooling coil 11 is larger than a certain value, the opening degree of each damper is controlled in accordance with FIG. At this time, the measured values obtained by the carbon dioxide sensor or the human sensor are also considered, and the set values of the respective machines are calculated.

Specifically, when the carbon dioxide concentration system is higher than the specific concentration or when the indoor temperature is a certain number or more, the minimum external temperature is used in order to lower the carbon dioxide concentration to a specific concentration or lower. The air is taken in to control the damper opening, and the carbon dioxide concentration can be reduced by ventilation. In such a manner, the load of the external air cooling coil 11 does not become excessive, and ventilation can be performed.

In this way, when the set value of each air conditioner 10 is set such that the required energy consumption of each device is minimized, the use of the outside air cooling room, the indoor carbon dioxide concentration, or indoors The minimum external air intake amount from the number of people is controlled (S3). Then, based on this set value, the central heat source device 40 supplies the necessary cold water to the air conditioner 10 (S4). As a result, the air adjusted in consideration of the comfort of the indoors is supplied to the room to be controlled by the air conditioner (S5).

According to the third embodiment described above, the optimum setting value of the air conditioner is considered based on the use of the outside air cooling room, the concentration of carbon dioxide in the room, or the amount of external air taken in the room. Calculated. Therefore, it is possible to perform energy-saving air-conditioning control that is more efficient and consumes energy.

<<Fourth embodiment>> <Configuration of Air Conditioning Control System Formed in the Fourth Embodiment>

The air conditioning control system 4 formed by the fourth embodiment of the present invention As shown in Fig. 6, the heat source device of the two systems of the central heat source device 40 and the second central heat source device 40' is provided. The other configuration is the same as the first embodiment. Therefore, the detailed description of the same portions as those of the first embodiment will be omitted.

In the fourth embodiment, the central heat source device 40 supplies cold water to the external air cooling coil 11, and the second central heat source device 40' supplies cold water to the circulating air cooling coil 12.

<Operation of Air Conditioning Control System Formed by Fourth Embodiment>

The operation of the air-conditioning control system 4 of the fourth embodiment is the same as that of the first embodiment except for the portion where the cold water is supplied in the step S5 of Fig. 3 . Therefore, the detailed description of the same portions as those of the first embodiment will be omitted.

In the fourth embodiment, when the cold water is supplied to each of the air conditioners 10 in step S6, the central heat source device 40 supplies cold water to the external air cooling coil 11, and the central heat source device 40 is another. The second central heat source device 40' of the system supplies cold water to the circulating air cooling coil_12.

In the prior air conditioning control system, the cold water supplied to the cooling coil by the central heat source device was about 7 °C. However, when this cold water of 7 ° C is necessary, it is only when the outside air is dehumidified and cooled. In this case, when the circulating air in the indoor air-conditioning control room is cooled, the temperature of the cold water is sufficient at about 13 °C. When the outside air is dehumidified and cooled, it becomes necessary energy (latent heat cold room load), and it is When the air conditioning control of the cold room is set, it is set to about 30~20% of the total amount of energy necessary. Therefore, the energy necessary for cooling the circulating air (sensible cold room load) (and the energy is equivalent to 70 to 80% of the total amount of energy) is used to cool the cold water excessively. Thus, it becomes wasteful in consuming energy.

In the fourth embodiment, the central heat source device 40 that supplies cold water to the external air cooling coil 11 and the second central heat source device 40' that supplies cold water to the circulating air cooling coil 12 are provided. 2 system cold water supply source. Then, the cold water system supplied to the external air cooling coil 11 by the central heat source device 40 is adjusted to be around 7 °C. In this case, the cold water supply to the circulating air cooling coil 12 of the second central heat source device 40' is set so as to be adjusted at around 13 °C.

According to the fourth embodiment described above, the central heat source devices 40 and 40' of the two systems are provided. This result can be omitted: because the cold water is excessively adjusted to a low temperature state, the energy is wasted. Therefore, it is possible to perform energy-saving air-conditioning control that is more efficient and consumes energy.

<<Fifth Embodiment>> <Configuration of Air Conditioning Control System Formed by Fifth Embodiment>

The configuration of the air conditioning control system 5 according to the fifth embodiment of the present invention is the same as that of the air conditioning control system 1 according to the first embodiment shown in Fig. 1. However, the external air cooling coil 11 and the circulating air cooling coil 12 are connected in series in each of the air conditioners 10. connection.

Each of the air conditioners 10 has a plurality of valves as shown in Fig. 7. The first valve 14 adjusts the amount of cold water taken into the external air cooling coil 11 from the central heat source device 40 by the opening degree. The second valve 15 is adjusted by taking in the amount of cold water that is taken into the circulating air cooling coil 12 after the external air cooling coil 11 is used. The third valve 16 is connected to the circulating air cooling coil 12 in a parallel state, and is adjusted by the amount of cold water directly drained after the external air cooling coil 11 is used. The fourth valve 17 is connected in parallel with the external air cooling coil 11, and is connected in series with the valve 15 and the valve 16 to be connected to the upstream side of the valves 15, 16 from the central heat source device. 40, the amount of cold water directly taken into the circulating air cooling coil 12 is adjusted.

<Operation of Air Conditioning Control System Formed by Fifth Embodiment>

The operation of the air-conditioning control system 5 of the fifth embodiment is the same as that of the first embodiment except for the portion of the process of supplying cold water in step S5 of Fig. 3 . Therefore, the detailed description of the same portions as those of the first embodiment will be omitted.

In the fifth embodiment, when cold water is supplied to each of the air conditioners 10 in the step S5, first, the cold water of 7 ° C is supplied from the central heat source device 40 toward the external air cooling coils 11. Then, the cold water after the external air cooling coil 11 has been used is reused in the circulating air cooling coil 12. As explained in the fourth embodiment, in circulating air cooling The cold water to be utilized by the coil 12 is not necessarily lower than the temperature of the cold water used in the external air cooling coil 11. Therefore, the cold water used for the circulating air cooling coil 12 can correspond to the reuse of the cold water after the external air cooling coil 11 has been used.

At this time, the amount of cold water supplied from the central heat source device 40 to the external air cooling coil 11 is adjusted by the opening degree of the valve 14. In addition, the amount of cold water supplied to the circulating air cooling coil 12 after the external air cooling coil 11 has been used is adjusted by the opening degree of the valve 15 and the valve 16. Further, the cold water after the use of the external air cooling coil 11 alone is not enough to supply the amount of cold water to be used in the circulating air cooling coil 12, and is opened by opening the valve 17, The cold water of the central heat source unit 40 is directly supplied to the circulating air cooling coil 12.

The figure 8(a) is indicated by a thick line: the cold water that has been used in the external air cooling coil 11 is completely supplied to the circulating air for cooling by opening the valve 14 and the valve 15 to the same extent. The cold water flows in the case of the coil 12. Fig. 8(b) is a thick line showing a portion of the cold water that has been utilized in the external air cooling coil 11 by opening the valve 14, the valve 15, and the valve 16, and is supplied to the circulation. At the same time as the air cooling coil 12, the unnecessary cold water flows without being passed through the circulating air cooling coil 12, and the cold water flows. Fig. 8(c) is a thick line showing the cold water used in the external air cooling coil 11 and the cold water system from the central heat source unit 40 by opening the valve 14, the valve 15, and the valve 17. When it is supplied to the circulating air cooling coil 12 The cold water flows underneath.

According to the fifth embodiment described above, the external air cooling coil 11 and the circulating air cooling coil 12 are connected to the series state. With such a configuration, the cold water after the external air cooling coil 11 has been used can be reused in the circulating air cooling coil 12. Therefore, it is possible to perform energy-saving air-conditioning control that is more efficient and consumes energy.

In the above-described first to fifth embodiments, the case where the central heat source device 40 is provided in the building A to be air-conditioned is described. However, when the refrigerator 41 and the cooling tower 42 of the central heat source unit 40 are not in the respective buildings, but the air conditioning control is performed by DHC (District Heating and Cooling), the system is cold. The hot water is supplied from the outside (but the water supply pump 43 that transports the hot and cold water to each air conditioner is inside the building). In such a case, the total energy consumption in the air-conditioning control system is the total value of the energy consumption of the water supply pump, the external air cooling coil, the circulating air cooling coil, and the air blowing fan.

In addition, in the first embodiment to the fifth embodiment described above, the respective measured values measured by the respective sensors are detected from the respective sensors, and are transmitted to the air conditioner joint control via the air conditioner 30. The case of device 50. However, the present invention is not limited thereto, and each measurement value may be directly transmitted to the air-conditioning unit control device 50 from each sensor.

Further, in the first to fifth embodiments described above, the PMV value is used as the comfort index of the human warm feeling. but not In addition to this, air conditioning control may be performed using a standard effective temperature or a new effective temperature or the like.

In addition, each embodiment may be implemented as much as possible in combination. Higher effects can be obtained by combining the various implementation states.

[Industrial availability]

According to the air conditioning control system of the present invention, it is possible to suppress excessive energy consumption in a range exceeding the comfort level of the indoors in consideration of the comfort of the indoors in a large building or the like. We seek to save energy and energy.

A‧‧‧ Building

1‧‧‧Air conditioning control system

10‧‧‧Air conditioner

20‧‧‧ Temperature Sensor

30‧‧‧Humidity sensor

40‧‧‧Central heat source unit

50‧‧‧Air conditioning joint control device

41‧‧‧Freezer

42‧‧‧Cooling tower

43‧‧‧Water pump

Claims (17)

An air conditioning control device for controlling an air conditioning system, the air conditioning system comprising: a blowing fan that supplies air to an air-conditioning object, an air conditioning coil that cools the air, and a heat source mechanism that supplies the refrigerant to the air conditioning coil; and is characterized by: The measurement value acquisition means obtains the temperature measurement value or the humidity measurement value of the air-conditioning object, and the indicator value range memory means is a target range for storing the index value of the human body's warm feeling, and the wind speed value changing mechanism is utilized. The measured value of the thermometer or the measured value of the humidity and the index value calculated by the airflow speed of the air-conditioning object are changed to be on the hot side of the target range memorized by the index value range memory means. The increase is the wind speed value of the airflow speed of the cooling air from the air blower fan relating to the variable of the index value, and the blower fan control means controls the wind speed value of the air blower fan after the change, and the energy consumption control The organization controls the aforementioned air conditioning system to allow the change before The aforementioned air conditioning system energy consumption value of wind speed decreases. An air conditioning control device for controlling an air conditioning system having: an air conditioner having a blower fan that supplies air to an air-conditioning object; and a heat source mechanism that supplies the air conditioner with a refrigerant for cooling the air; and the method includes: measuring a value Obtaining a mechanism to obtain a thermometer related to the aforementioned air-conditioning object The measured value or the hygrometer measured value, the index value range memory mechanism, is the target range of the index value for memorizing the warm feeling of the human, and the index value calculating mechanism uses the aforementioned thermometer value or the aforementioned humidity meter to measure the air conditioner. The airflow speed of the object is used to calculate the index value, and the blower fan control means is located on the hot side outside the target range of the index value memorized by the index value range memory means by the index value calculated by the index value calculation means. In the case of the side, the control is changed to the wind speed value of the airflow speed of the cooling air from the air blower fan, and the energy consumption control means controls the heat source mechanism to change the change in the index value. The energy consumption of the air conditioning system having the aforementioned wind speed value is small. An air conditioning control device for controlling an air conditioning system, comprising: an air conditioner coil, and a heat source mechanism for supplying a refrigerant for cooling the air to the air conditioner coil; and the method includes: a measurement value acquisition mechanism Obtaining the measured value of the thermometer or the hygrometer of the air-conditioning object, the index value range memory mechanism is a target range for storing the index value of the human body's warm feeling, and the index value calculating mechanism uses the aforementioned thermometer value or the aforementioned hygrometer value. Calculating the index value with respect to the airflow speed of the air-conditioning object, and the blower fan control mechanism is calculated by the index value calculation mechanism When the index value is outside the target range of the index value memorized by the index value range memory means, the control is changed to increase the air supply fan from the air-conditioning cooling air toward the air-conditioning object. The wind speed value of the airflow speed of the variable of the index value and the energy consumption control means control the air conditioning system to reduce the energy consumption of the air conditioning system after the wind speed value is changed. An air conditioning control device that controls an air conditioning system including: an air conditioner; and a heat source mechanism that supplies a refrigerant for cooling the air to the air conditioner; and the method includes: a measurement value acquisition unit that acquires an air-conditioning target The thermometer value or the hygrometer value, the index value range memory mechanism, the target range of the index value for memorizing the human body's warm feeling, and the index value calculation mechanism is to use the aforementioned thermometer value or the aforementioned humidity meter measurement value, and the aforementioned air conditioner The airflow speed of the object is used to calculate the index value, and the blower fan control means is located on the hot side outside the target range of the index value memorized by the index value range memory means by the index value calculated by the index value calculation means. In the case of the side, the control is changed to increase the air blowing fan from the air blown to the air-conditioning object, and the wind speed value of the wind speed with respect to the variable of the index value, and the energy consumption control means for controlling the heat source The organization allowed the change before The energy consumption of the wind speed value becomes smaller. An air conditioning control device for controlling an air conditioning system, the air conditioning system having at least: a heat source mechanism for supplying a refrigerant for cooling air to an air conditioner; and characterized by: a measurement value acquisition mechanism for obtaining a thermometer value for an air-conditioning object or The hygrometer measurement value and the index value range memory mechanism are the target ranges for memorizing the index value of the human body's warm feeling, and the index value calculation means is to use the aforementioned thermometer measurement value or the aforementioned hygrometer measurement value, and the air flow speed of the aforementioned air-conditioning object. The air blower fan control unit calculates the index value, and the index value calculated by the index value calculation means is located on the hot side of the target value of the index value memorized by the index value range memory means. The control is changed to increase the wind speed value of the air flow rate relating to the variable of the index value with respect to the air blower that blows the air cooled by the air conditioner to the air-conditioning object, and the energy consumption control means controls the aforementioned The heat source mechanism allows the energy consumption of the aforementioned wind speed value after the change small. An air-conditioning system includes: a blower fan that supplies air to an air-conditioning object, an air conditioner coil, a cooling air, and a heat source mechanism, and supplies a refrigerant to the air-conditioning coil, and a measurement value acquisition mechanism acquires the air-conditioning object Thermometer The measured value or the hygrometer measured value, the index value range memory mechanism is a target range for memorizing the index value of the human warm feeling, and the wind speed value changing mechanism is based on the measured value of the aforementioned thermometer or the aforementioned hygrometer, and related to the foregoing When the index value calculated by the airflow speed of the air-conditioning target is located on the hot side of the target range memorized by the index value range memory means, the change is to increase the airflow speed with respect to the variable of the index value. The air blower control means controls the wind speed value of the air blower fan after the change, and the energy consumption control means controls the air conditioner coil and the heat source mechanism. The energy consumption of the aforementioned wind speed value after the change is made small. An air conditioning system includes: an air conditioner, a blower fan that supplies air to an air-conditioning object, and a heat source mechanism that supplies a refrigerant for cooling the air to the air conditioner, and a measurement value acquisition unit that obtains a temperature measurement of the air-conditioning object The value or the hygrometer value, the index value range memory mechanism, the target range of the index value for memorizing the human body's warm feeling, and the index value calculation mechanism, which uses the aforementioned thermometer value or the aforementioned hygrometer value, and the aforementioned air-conditioning object The airflow speed is used to calculate the aforementioned index value. In the case where the index value calculated by the index value calculation means is located on the hot side of the target range stored by the index value range memory means, the control of the air supply fan control means is changed to the above-mentioned The variable value of the index value relates to the airflow speed of the cooling air from the air blowing fan, and the energy consumption control means controls the heat source mechanism to reduce the energy consumption of the changed wind speed value. An air conditioning system comprising: an air conditioning coil, a heat source mechanism, and a refrigerant for supplying air to the air conditioning coil, wherein the measurement value obtaining means obtains a temperature measurement value or a humidity meter value of the air conditioning object, The index value range memory means is a target range for storing an index value of a warm feeling of a human being, and the index value calculating means calculates the aforementioned index by using the measured value of the thermometer or the measured value of the humidity meter and the airflow speed of the air-conditioning object. When the index value calculated by the index value calculation means is located on the hot side of the target range of the index value memorized by the index value range memory means, the control is changed to the value of the air supply fan control means. Increasing the blower fan from the air-cooling air that is directed toward the air-conditioning object is a wind speed value relating to the wind speed of the airflow speed with respect to the variable of the index value, and The energy consumption control mechanism controls the air conditioning coil and the heat source mechanism to reduce the energy consumption of the changed wind speed value. An air conditioning system comprising: an air conditioner, a heat source mechanism, a refrigerant for supplying air to the air conditioner, and a measurement value acquisition mechanism for obtaining a thermometer value or a hygrometer value for an air-conditioning object, and an index value range memory mechanism The target range for storing the index value of the warm feeling of the human being, and the index value calculating means calculates the index value by using the measured value of the thermometer or the humidity meter and the airflow speed of the air-conditioning target, and the blower fan controls In the case where the index value calculated by the index value calculation means is located on the hot side of the target range of the index value memorized by the index value range memory means, the control is changed to increase from the air conditioner toward the air conditioner. The air blowing fan that blows the air that has cooled the air is a wind speed value related to the wind speed of the variable of the index value, and an energy consumption control mechanism that controls the heat source mechanism to reduce the energy consumption of the changed wind speed value. . An air conditioning system having: a heat source mechanism for supplying a refrigerant for cooling air to the air conditioner; The measurement value acquisition means obtains the temperature measurement value or the humidity measurement value of the air-conditioning object, and the index value range memory means is a target range for storing the index value of the human body's warm feeling, and the index value calculation means uses the aforementioned thermometer to measure The value or the humidity measurement value and the air flow rate of the air-conditioning target are used to calculate the index value, and the air-sending fan control unit is configured to store the index value calculated by the index value calculation unit in the memory value of the index value range. When the target value outside the target range of the index value is located on the hot side, the control is changed to increase the airflow fan from which the air cooled by the air conditioner is directed to the air-conditioning object, and the relevant airflow is related to the variable of the index value. The wind speed value of the wind speed of the speed and the energy consumption control mechanism control the heat source mechanism to reduce the energy consumption of the changed wind speed value. An air conditioning control method is an air conditioning control device that controls an air conditioning system, the air conditioning system includes: a blowing fan that supplies air to an air-conditioning object, an air conditioning coil that cools the air, and a heat source mechanism that supplies the refrigerant to the air conditioning coil; the air conditioner The control method includes: a measurement value acquisition step of obtaining a thermometer measurement value or a hygrometer measurement value for the air-conditioning object, and an index value range memory step for memorizing a target range of an index value regarding a human warm feeling, and a wind speed value changing step , using the aforementioned thermometer or the aforementioned wet When the measured value and the index value calculated by the airflow speed of the air-conditioning target are located on the hot side of the target range stored in the index value range memory step, the change is made to the above-mentioned index. The value of the airflow speed is related to the airflow speed of the cooling air from the air blowing fan, and the air blowing fan control step controls the wind speed value of the air blowing fan after the change, and the energy consumption control step to control the air conditioner. The system reduces the energy consumption of the air conditioning system having the aforementioned wind speed value after the change. An air conditioning control method for controlling an air conditioning system, the air conditioning system having: an air conditioner having a blower fan that supplies air to an air conditioner object, and a heat source mechanism that supplies the air conditioner with a refrigerant for cooling the air; the air conditioner control method The method of obtaining a measured value obtains a temperature measurement value or a humidity measurement value of the air-conditioning object, and an index value range memory step, which is a target range for storing an index value of a human warm feeling, and an index value calculation step. Calculating the index value by using the measured value of the thermometer or the measured value of the humidity meter and the airflow speed of the air-conditioning target, and the blower fan control step is to store the index value calculated by the index value calculation step in the range of the index value In the case where the target range stored in the step is located on the hotter side, the change in control is increased in relation to the variable speed of the aforementioned index value related to the airflow from the aforementioned air supply. The wind speed value of the cooling air of the fan and the energy consumption control step control the heat source step to reduce the energy consumption of the air conditioning system of the changed wind speed value. An air conditioning control method is an air conditioning control device that controls an air conditioning system, the air conditioning system has: an air conditioning coil, and a heat source mechanism that supplies the air conditioning coil with a refrigerant for cooling the air; the air conditioning control method has: a measured value The obtaining step is to obtain a thermometer value or a hygrometer value for the air-conditioning object, and a parameter value range memory step, which is a target range for memorizing the index value of the human body's warm feeling, and the index value calculating step is performed by using the aforementioned thermometer value. Or the humidity meter measurement value and the airflow speed of the air-conditioning object to calculate the index value, and the air-sending fan control step is an index stored in the index value calculation step by the index value calculated in the index value calculation step When the outside of the target range of the value is located on the hot side, the control is changed to increase the wind speed of the wind speed of the airflow rate with respect to the variable of the index value. The energy consumption control step controls the aforementioned air conditioning system to make changes Energy consumption of air conditioning systems of the aforementioned wind speed values of the aforementioned smaller. An air conditioning control method for controlling an air conditioning system by an air conditioning control device, the air conditioning system having: an air conditioner, and a supply of the air conditioner The heat source mechanism for cooling the air refrigerant; the air conditioning control method includes: a step of obtaining a measured value, obtaining a temperature measurement value of the air-conditioning object or a humidity meter measurement value, and a parameter value range memory step for memorizing the warm feeling of the human body The target range of the index value, the index value calculation step is to calculate the index value by using the thermometer value or the humidity meter value and the airflow speed of the air-conditioning target, and the air blower fan control step is to calculate the step by using the index value When the calculated index value is located on the hot side of the target range of the index value memorized in the index value range memory step, the control is changed to increase the air blowing fan from the air that has cooled the air to the air-conditioning object. It is a wind speed value relating to the wind speed of the airflow speed with respect to the variable of the index value, and a power consumption control step of controlling the heat source mechanism to reduce the energy consumption of the changed wind speed value. An air conditioning control method for controlling an air conditioning system by an air conditioning control device, the air conditioning system having at least: a heat source mechanism for supplying a refrigerant for cooling air to an air conditioner; the air conditioning control method having: a step of obtaining a measured value, obtaining an air conditioning target The thermometer measurement value or the hygrometer measurement value, the index value range memory step is a target range for memorizing the index value of the human warm feeling, and the index value calculation step is to use the aforementioned thermometer value or the aforementioned humidity. The measured value and the airflow speed of the air-conditioning target are used to calculate the index value, and the blower fan control step is a target of the index value memorized by the index value in the index value calculation step. In the case where the outside of the range is located on the hot side, the control is changed to increase the wind speed of the airflow speed with respect to the variable of the index value from the air blower that blows the air cooled by the air conditioner toward the air-conditioning object. The wind speed value and the energy consumption control step control the heat source mechanism to reduce the energy consumption of the changed wind speed value. A recording medium in which an air-conditioning control program is recorded, wherein an air-conditioning control device controls an air-conditioning system including: a blower fan that supplies air to an air-conditioning object, an air-conditioning coil that cools air, and a refrigerant that supplies the air-conditioning coil In the air conditioning control device, the air conditioning control program performs a measurement value acquisition function, and acquires a thermometer value or a hygrometer value for the air-conditioning object, and an index value range memory function for memorizing humans. The target range of the index value of the warm feeling, and the wind speed value changing function is a memory function by using the aforementioned thermometer value or the humidity meter value and the airflow speed of the air-conditioning object; In the case where the stored target range is located on the hotter side, the change to the increase is related to the variable of the aforementioned index value related to the airflow speed from the aforementioned blower fan. The wind speed value of the air blown by the cooled air, and the air blower fan control function, which controls the wind speed value of the air blower fan after the change, and the energy consumption control function, the air conditioner that controls the air conditioner system to change the air speed value after the change The system consumes less energy. A recording medium recording an air conditioning control program, wherein the air conditioning control device controls an air conditioning system, the air conditioning system having: an air conditioner coil, and a heat source mechanism that supplies the air conditioner coil with a refrigerant for cooling the air; In the air-conditioning control device, the air-conditioning control program performs a measurement value acquisition function, and acquires a thermometer measurement value or a hygrometer measurement value for an air-conditioning object, and an index value range memory function, which is a target for memorizing an index value regarding a human warm feeling. The range and the index value calculation function calculate the index value by using the temperature measurement value or the humidity meter measurement value and the air flow rate of the air-conditioning target, and the air blower fan control function is an index calculated by the index value calculation function. When the value is outside the target range of the index value memorized by the index value range memory function, the control is changed to increase the air supply fan from the air-conditioning cooling air that is directed to the air-conditioning object. The wind speed value of the wind speed with respect to the air velocity, and the consumption After source control, train control foregoing air conditioning system to make changes The energy consumption of the air conditioning system of the aforementioned wind speed value is small.