JP2010071591A - Air conditioning system, set temperature control method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save energy by reducing cooling load and heating load as small as possible. <P>SOLUTION: Temperature and humidity of the outside air are measured throughout the year, a range of corresponding outside air temperature and a range of outside air enthalpy are determined so that the energy necessary for conditioning the air by an air conditioner is relatively reduced, and correspondence relationship of temperature standard and enthalpy standard is memorized. With acceptance on this point, the temperature and humidity of the outside air are acquired (S100), and a set temperature is calculated by using the correspondence relationship of temperature standard (S110). On the other hand, the enthalpy of outside air is calculated from the acquired temperature and humidity of the outside air (S120), and a set temperature is calculated by using the correspondence relationship of enthalpy standard (S130). One of two calculated set temperatures of smaller energy requirement is selected as the set temperature (S140). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioning system used in an air conditioning room in a factory or the like.

  There are grinding rooms and assembly rooms as air conditioning rooms (clean rooms) in factories. In the grinding room, it is necessary to control the temperature in the room in order to prevent expansion of the grinding object due to heat. Moreover, in an assembly room, it is necessary to manage indoor humidity for rust prevention. Therefore, as is well known, air conditioning control is performed by an air conditioning system.

Such an air conditioning system includes an automatic control panel for controlling the air conditioner, and the temperature and humidity in the air conditioned room are maintained under a certain condition by the control by the automatic control panel. Specifically, the automatic control panel adjusts the air in the air conditioning room based on a preset temperature set in advance.
This set temperature is generally set manually, and is changed, for example, every season. As an example, there are 24 ° C. in the spring, 26 ° C. in the summer, 24 ° C. in the autumn, and 22 ° C. in the winter.

  However, considering the cooling load and heating load during the mid-term such as spring and fall as an example, the difference between the outside temperature between daytime and nighttime becomes large, so the difference between the set temperature and outside temperature is large. Become. Therefore, when the set temperature is set to a constant value such as 24 ° C., the cooling load (indicated by symbol O) and the heating load (indicated by symbol P) are large as shown in FIG. This is not preferable from the viewpoint of energy saving.

  The present invention has been made to solve the above-described problems, and an object thereof is to reduce the cooling load and the heating load as much as possible to save energy.

  The air conditioning system according to claim 1, which has been made to achieve the above object, controls an air conditioner that adjusts air to the outside air and sends the air that has been adjusted to the air conditioning room based on a set temperature. The set temperature is controlled so that the required energy required for air conditioning in (hereinafter simply referred to as “required energy”) becomes relatively small.

  In the present invention, the correspondence relationship storage means stores the temperature correspondence relationship and the enthalpy correspondence relationship. The temperature correspondence relationship allows the temperature included in the adjustment range to be associated with the outside air on the basis of the temperature. On the other hand, the enthalpy correspondence can associate the temperature included in the adjustment range with the outside air based on the enthalpy. All of these correspondences are obtained in advance so that the required energy becomes relatively small. Here, the “adjustment range” is determined by the type of the air conditioning room.

  Here, in particular, the temperature and humidity acquisition means acquires the temperature and humidity of the outside air. Humidity here means relative humidity. Further, the first temperature calculation means calculates the first temperature included in the adjustment range from the acquired outside air temperature using the temperature correspondence relationship. On the other hand, the second temperature calculation means calculates the second temperature included in the temperature adjustment range from the acquired outside air temperature and humidity using the enthalpy correspondence. Then, the temperature at which the required energy becomes smaller among the first and second temperatures is selected as the set temperature by the set temperature selection means.

  In other words, various criteria can be used in consideration of calculating the temperature that is the target of control (finally the set temperature) so as to reduce the required energy. Therefore, in the present invention, a particularly effective temperature standard and enthalpy standard are used. From this point of view, the temperature correspondence and the enthalpy correspondence are obtained in advance. Specifically, the temperature and humidity of the outside air are actually acquired, and for example, a correspondence relationship that reduces the required energy throughout the year is obtained.

  For example, as shown in claim 2, the temperature correspondence relationship is such that the temperature in a specific range of outside air is linearly associated with the adjustment range. More specifically, for example, as shown in FIG. Here, the temperature (outside air temperature in the figure) 18 to 28 (° C.) in a specific range of outside air is linearly associated with the adjustment range (set temperature in the figure) 20 to 26 (° C.). At this time, as described above, the temperature of the specific range of the outside air is set so that the required energy becomes relatively small throughout the year.

  Further, for example, the enthalpy correspondence relationship is such that the enthalpy in a specific range of outside air is linearly associated with the adjustment range, as shown in claim 3. More specifically, for example, as shown in FIG. Here, the enthalpy (outside air enthalpy in the figure) 40 to 60 (kj / kg) in a specific range of outside air corresponds to the adjustment range (set temperature in the figure) 20 to 26 (° C.). At this time, as described above, the enthalpy of the specific range of the outside air is set so that the required energy becomes relatively small throughout the year.

  In the present invention, on the premise that such correspondence is stored, the first temperature calculated using the temperature correspondence and the second temperature calculated using the enthalpy correspondence The temperature at which the required energy becomes smaller is set as the set temperature. That is, further energy saving is achieved by using both the temperature standard and the enthalpy standard. In this way, the cooling load and the heating load can be reduced as much as possible, and energy saving can be achieved.

  By the way, as a structure which actualizes the said structure, as shown in Claim 4, it is good also as a structure in which an enthalpy calculation means calculates the enthalpy of external air from the temperature and humidity of external air. At this time, the second temperature is calculated by the second temperature calculating means from the enthalpy of the outside air calculated by the enthalpy calculating means.

  In addition, as described in claim 5, when the air conditioning mainly requires the cooling operation of the air conditioner, the set temperature selection means selects a higher temperature as the set temperature from the first and second temperatures. Is exemplified. Moreover, as shown in claim 6, when the air conditioning mainly requires heating operation of the air conditioner, the set temperature selection means selects a lower temperature as the set temperature from the first and second temperatures. Is exemplified. Employing these configurations is advantageous in that the set temperature selection means is simplified because the set temperature is selected by simply comparing the first temperature and the second temperature.

As described above, the invention of the air conditioning system has been described. However, the present invention has a feature in the control of the set temperature, and thus can be realized as an invention of the set temperature control method.
That is, when controlling the air conditioner that adjusts the air to the outside air and sends the air that has been adjusted to the air conditioning room based on the set temperature, the energy required for air adjustment in the air conditioner is relatively Is a set temperature control method for controlling the set temperature so that the required energy is relatively small, and is a correspondence relationship obtained in advance so that the required energy becomes relatively small, and the temperature included in the adjustment range with respect to the outside air as a reference Are stored, and the enthalpy correspondence that can associate the temperature included in the adjustment range to the outside air with reference to the enthalpy is stored, and the outside air acquired using the temperature correspondence is stored. The first temperature included in the adjustment range is calculated from the temperature of the air and the temperature of the outside air obtained using the enthalpy correspondence is calculated. A temperature calculation process for calculating the second temperature included in the temperature adjustment range from the humidity, and a set temperature selection process for selecting a temperature at which the required energy is smaller among the first and second temperatures as the set temperature. Is a set temperature control method characterized by

According to such a set temperature control method, the same effects as described above are exhibited.
Moreover, the structure similar to the air conditioning system shown to Claims 2-6 can also be employ | adopted. That is, as shown in claim 8, the temperature correspondence relationship may be such that the temperature in a specific range of outside air is linearly associated with the adjustment range. Further, as shown in claim 9, the enthalpy correspondence relationship may be such that the enthalpy of a specific range of outside air is linearly associated with the adjustment range.

  Furthermore, as shown in claim 10, enthalpy calculation processing for calculating the enthalpy of the outside air from the temperature and humidity of the outside air may be executed. At this time, in the temperature calculation process, the second temperature is calculated from the enthalpy of the outside air calculated in the enthalpy calculation process.

  In the set temperature selection process, when the air conditioning mainly requires the cooling operation of the air conditioner, a higher temperature is selected as the set temperature from the first and second temperatures. It is also good to do. Furthermore, as set forth in claim 12, in the set temperature selection process, when heating operation of the air conditioner is mainly required for air conditioning, a lower one of the first and second temperatures is selected as the set temperature. It may be done.

If these configurations are employed, the same effects as those of the air conditioning system can be obtained.
In addition, since such a preset temperature control method is implement | achieved by the computer system, it can also be implement | achieved as invention of a program as shown in Claim 13.
That is, the program includes each process in the set temperature control method according to any one of claims 7 to 12.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The air conditioning system 1 of this embodiment shown in FIG. 1 is a system for air conditioning in the air conditioning room 90. The air-conditioned room 90 that is air-conditioned is, for example, a grinding room or an assembly room. In the grinding chamber, the influence of the thermal expansion of the object to be ground influences the accuracy of the product, and therefore, temperature management in the room is important. Also, in the assembly room, indoor humidity management is important from the viewpoint of rust prevention.

The air conditioning system 1 mainly includes an air conditioner 10, an automatic control panel 20, a boiler 30, and a refrigerator 40.
Here, the air conditioner 10 includes a blower (shown as “FAN” in the drawing) 11, a humidifying unit 12, a heating unit 13, and a cooling unit 14.

  The blower 11 takes in outside air as indicated by an arrow A during operation. The taken-in air passes through the cooling unit 14, the heating unit 13, and the humidification unit 12 in this order, and is sent to the air conditioning chamber 90 as indicated by an arrow B.

  The humidifying unit 12 is configured to humidify the taken-in air, and includes a humidifying pipe 15. The humidifying pipe 15 has a plurality of holes in the vicinity of the blower 11. With this configuration, the taken-in air is humidified by the water vapor sent via the humidifying pipe 15.

  The heating unit 13 is configured to heat the taken-in air and includes a heating pipe 16. Hot water from a boiler 30 (described later) flows through the heating pipe 16. With this configuration, when the taken-in air passes through the heating unit 13, heat exchange is performed, and the taken-in air is heated. In addition, although it was set as warm water here, it is good also as a structure which flows water vapor | steam in the piping 16 for a heating.

  The cooling unit 14 is configured to cool and dehumidify the taken-in air, and includes a cooling pipe 17. Cold water from a refrigerator 40 described later flows through the cooling pipe 17. With this configuration, when the taken-in air passes through the cooling unit 14, heat exchange is performed, and the taken-in air is cooled and dehumidified.

  Although a detailed description is omitted because it is a well-known configuration, the humidification unit 12, the heating unit 13, and the cooling unit 14 enable humidification, heating, cooling, and dehumidification of air.

  The automatic control panel 20 is a so-called control unit, and controls the air conditioner 10 based on input information. The input information is information acquired by the outside air temperature / humidity sensor 21 and the indoor temperature / humidity sensor 22. The outside air temperature / humidity sensor 21 measures the temperature and humidity of the outside air. On the other hand, the indoor temperature / humidity sensor 22 measures the temperature and humidity in the air conditioning room 90. The automatic control panel 20 has a storage unit 23 for storing a correspondence relationship described later.

  Referring to specific control, the automatic control panel 20 controls the humidifying unit 12, the heating unit 13, and the cooling unit 14 based on input information from the indoor temperature / humidity sensor 22. A configuration related to the control of the heating unit 13 is a hot water valve 51. Further, the configuration relating to the control of the cooling unit 14 is a chilled water valve 52. Note that the control configuration of the humidifying unit 12 is omitted. Below, control with respect to the heating unit 13 and the cooling unit 14 will be described as an example.

  Here, the control based on the input information from the indoor temperature / humidity sensor 22 controls the hot water valve 51 and the cold water valve 52 so that the temperature in the air conditioning chamber 90 becomes the set temperature. The set temperature here is a target temperature that is a control target. The feature of the present embodiment is that the automatic control panel 20 “automatically controls the set temperature” of the air conditioning room 90 based on the input information from the outside air temperature / humidity sensor 21. The automatic control of the set temperature will be described in detail later.

  The boiler 30 is a structure for generating hot water. A supply pipe 31 and a return pipe 32 are connected to the boiler 30. The supply pipe 31 is provided with a hot water pump 61 and a hot water valve 51. With this hot water pump 61, the hot water generated in the boiler 30 is sent to the heating unit 13 via the hot water valve 51. More specifically, the hot water valve 51 is a three-way valve, and the hot water valve 51 directly sends the hot water to the heating unit 13 (the path indicated by the arrow C) or directly to the return pipe 32 without being sent to the heating unit 13. The return route (route indicated by arrow D) can be switched. Therefore, when performing the heating operation, the automatic control panel 20 switches the hot water valve 51 and sends the hot water to the heating unit 13.

  The refrigerator 40 is a structure for generating cold water. Similarly to the boiler 30, a supply pipe 41 and a return pipe 42 are also connected to the refrigerator 40. A cold water pump 62 and a cold water valve 52 are disposed in the supply pipe 41. The cold water generated by the refrigerator 40 is sent to the cooling unit 14 via the cold water valve 52 by the cold water pump 62. More specifically, the chilled water valve 52 is a three-way valve, and the chilled water valve 52 directly sends the chilled water to the cooling unit 14 (path indicated by arrow E) or directly to the return pipe 42 without being sent to the cooling unit 14. The return route (route indicated by arrow F) can be switched. Therefore, when performing the cooling and dehumidifying operation, the automatic control panel 20 switches the cold water valve 52 and sends the cold water to the cooling unit 14.

  Although the schematic configuration of the air conditioning system 1 has been described above, the feature of the present embodiment is that, as described above, the set temperature of the air conditioning chamber 90 is automatically controlled based on the temperature and humidity of the outside air. Next, automatic setting temperature control will be described.

  First, as a premise, there are indoor conditions to be maintained in the air-conditioned room 90. For example, when the air-conditioning chamber 90 is a grinding chamber, there are temperature and humidity conditions according to the grinding chamber. For example, when the air-conditioning room 90 is an assembly room, the temperature and humidity conditions according to the assembly room exist. An example of this range is shown in the air diagram of FIG. 2 as room conditions (indicated by a frame of symbol S). In FIG. 2, a temperature of 20 to 26 (° C.) and a humidity of 30 to 60 (%) are indoor conditions. That is, when the set temperature is controlled, it is necessary to control so as to enter the indoor condition.

In the present embodiment, the set temperature of the air conditioning chamber 90 is controlled linearly. Specifically, linear control is performed on the basis as shown in FIGS. 3 (a) and 3 (b).
FIG. 3A is based on the outside air temperature, and the outside air temperature 18 to 28 (° C.) is linearly associated with the set temperature 20 to 26 (° C.). The set temperature when the outside air temperature is below 18 ° C. is uniformly 20 ° C., and the set temperature when the outside air temperature is above 28 ° C. is uniformly 26 ° C. If this correspondence is used, for example, when the outside air temperature is 22 ° C., the set temperature is set to 22.5 ° C. For example, when the outside air temperature is 28 ° C., the set temperature is set as 26 ° C.

  On the other hand, FIG. 3B is based on the outside air enthalpy, and the outside air enthalpy 40 to 60 (kj / kg) corresponds to the set temperature 20 to 26 (° C.). The outside air enthalpy is the outside air enthalpy at the saturation point. As can be seen from FIG. 3B, the set temperature when the outside air enthalpy is below 40 (kj / kg) is uniformly 20 ° C., and the set temperature when the outside air enthalpy is above 60 (kj / kg) is uniformly. 26 ° C. If this correspondence is used, for example, when the outside air temperature is 22 ° C. and the humidity is 92%, the outside air enthalpy becomes 60 (kj / kg) or more, so the set temperature is set to 26 ° C. For example, when the outside air temperature is 28 ° C. and the humidity is 35%, the outside air enthalpy is 50 (kj / kg), so the set temperature is set to 23 ° C.

Such a correspondence relationship is obtained in advance. Next, a method for setting such correspondence will be described.
For example, as indicated by the symbol T1 in FIG. 2, it is assumed that the outside air in summer (daytime) has a temperature of 33 ° C. and a humidity of 60%. If the set temperature is 26 ° C. at this time, the energy required for cooling and dehumidifying the outside air can be calculated as the difference in enthalpy indicated by the symbol d. Therefore, the temperature and humidity of the outside air are measured throughout the year, and the range of the outside air temperature corresponding to the linear is determined so that the required energy becomes relatively small. Similarly, the temperature and humidity of the outside air are measured throughout the year, and the range of the outside air enthalpy corresponding to the linear is determined so that the required energy becomes relatively small. In addition to the outside air temperature and the outside air enthalpy, humidity and the temperature at the saturation point can also be adopted as the reference for such correspondence. However, from the viewpoint of energy saving, it is preferable to use the standard of the outside air temperature and the outside air enthalpy. Therefore, in this embodiment, a reference based on the outside air temperature (hereinafter referred to as “temperature reference”) and a reference based on the outside air enthalpy (hereinafter referred to as “enthalpy reference”) are used in combination.

  Note that the correspondence relationship of the temperature reference obtained in advance in this way corresponds to the “temperature correspondence relationship”, and the correspondence relationship of the enthalpy reference corresponds to the “enthalpy correspondence relationship”. These correspondence relationships are assumed to be stored in the storage unit 23 of the automatic control panel 20. In this sense, the storage unit 23 constitutes a “corresponding relationship storage unit”.

Next, the set temperature control process executed by the automatic control panel 20 will be described based on the flowchart of FIG.
In the first step 100 (hereinafter “step” is simply indicated by the symbol S), the temperature and humidity of the outside air are acquired. This process is performed based on input information input from the outside air temperature / humidity sensor 21.

  In subsequent S110, the set temperature is calculated based on the temperature. Specifically, the set temperature is calculated from the temperature acquired in S100 using the correspondence relationship of the temperature reference shown in FIG. In the next S120, the enthalpy of the outside air is calculated from the temperature and humidity acquired in S100.

  In subsequent S130, the set temperature is calculated based on the enthalpy. Specifically, the set temperature is calculated from the outside air enthalpy calculated in S120 using the correspondence relationship of the enthalpy standard shown in FIG.

  In the next S140, a set temperature having a smaller required energy is selected from the set temperatures obtained in S110 and S130, and then this set temperature control process is terminated. The process of S140 is exemplified by comparison of set temperatures. For example, if the temperature and humidity are relatively high, cooling and dehumidification (cooling operation) are the center, so the higher of the two set temperatures is selected. Further, for example, if the temperature and humidity are relatively low, heating and humidification (heating operation) are the center, so the lower one of the two set temperatures is selected.

The set temperature control process has been described above. In order to facilitate understanding of the set temperature control process, a specific example will be described below.
5 and 6 are explanatory diagrams specifically showing selection of the set temperature. Here, the selection of the set temperature for the outside air indicated by the symbol T2 in FIG. 5 will be described first. In this case, the outside air has a temperature of 22 ° C. and a humidity of 92%. Next, selection of the set temperature for the outside air indicated by symbol T3 in FIG. 6 will be described. In this case, the outside air is assumed to have a temperature of 28 ° C. and a humidity of 35%.

  First, the outside air temperature and humidity indicated by the symbol T2 in FIG. 5 is acquired from the outside air temperature and humidity sensor 21 (S100 in FIG. 4). Next, when the set temperature is calculated based on the temperature, in this example, since the temperature of the outside air is 22 ° C., the set temperature is calculated as 22.5 ° C. (S110, see FIG. 3A). Next, the enthalpy of outside air is calculated. In this example, since the temperature is 22 ° C. and the humidity is 92%, the enthalpy of the outside air is 62 (kj / kg) (S120), exceeding 60 (kj / kg). Therefore, when the set temperature is calculated based on the enthalpy standard, the set temperature is calculated as 26 ° C. (S130, see FIG. 3B). In this case, since cooling and dehumidification are the center, a higher set temperature of 26 ° C. is selected from the two set temperatures (S140). At this time, in the air diagram of FIG. 5, the energy required for heating (the arrow from the left to the right in the figure) is almost the same, but the energy required for cooling and dehumidification is 20 kj on the temperature basis. In contrast, the enthalpy standard is 10 kj. Therefore, it can be seen that energy is saved by selecting the set temperature of 26 ° C. calculated based on the enthalpy standard.

  Next, the temperature and humidity of the outside air indicated by the symbol T3 in FIG. 6 is acquired from the outside temperature and humidity sensor 21 (S100 in FIG. 4). Next, when the set temperature is calculated based on the temperature, in this example, since the temperature of the outside air is 28 ° C., the set temperature is calculated as 26 ° C. (see S110, FIG. 3A). Next, the enthalpy of outside air is calculated. In this example, since the temperature is 28 ° C. and the humidity is 35%, the enthalpy of the outside air is 50 (kj / kg) (S120). Therefore, when the set temperature is calculated based on the enthalpy standard, the set temperature is calculated as 23 ° C. (S130, see FIG. 3B). In this case, since cooling is performed, the higher set temperature of 26 ° C. is selected from the two set temperatures. At this time, as seen from the air diagram of FIG. 6, the energy required for cooling is 4 kj on the temperature basis, and 8 kj on the enthalpy basis. Therefore, it can be seen that energy is saved by selecting the set temperature of 26 ° C. calculated on the basis of the temperature.

  By the way, in the example of FIG.5 and FIG.6, especially the case where cooling and dehumidification became the center was shown, but also when heating and humidification become the center, in setting the lower one of the two set temperatures, Just like that.

  Note that the outside temperature / humidity sensor 21 in this embodiment constitutes “temperature / humidity acquisition means”, and the automatic control panel 20 includes “first temperature calculation means”, “second temperature calculation means”, “set temperature selection means”, and It constitutes “enthalpy calculation means”.

  Further, the processing of S110 in FIG. 4 corresponds to the processing as the function of the “first temperature calculation means”, and the processing of S130 corresponds to the processing as the function of the “second temperature calculation means”. These processes of S110 and S120 constitute a “temperature calculation process”. Therefore, the set temperature calculated in S110 corresponds to the “first temperature”, and the set temperature calculated in S130 corresponds to the “second temperature”. Further, the process of S140 corresponds to a process as a function of the “set temperature selection means” and constitutes a “set temperature selection process”. Furthermore, the processing of S120 corresponds to processing as “enthalpy calculation means” and constitutes “enthalpy calculation processing”.

  As described above in detail, in the air conditioning system 1 of the present embodiment, the temperature and humidity of the outside air are measured throughout the year, and the range of the outside air temperature and the enthalpy of the outside air corresponding to the required energy are relatively reduced. The range is determined, and the correspondence relationship between the temperature standard and the enthalpy standard (see FIGS. 3A and 3B) is stored. On the premise of this, the temperature and humidity of the outside air are acquired (S100 in FIG. 4), and the set temperature is calculated using the correspondence relationship of the temperature reference (S110). On the other hand, the enthalpy of the outside air is calculated from the acquired temperature and humidity of the outside air (S120), and the set temperature is calculated using the correspondence relationship of the enthalpy standard (S130). Then, a set temperature having a smaller required energy is selected from the two calculated set temperatures (S140).

  In other words, various standards can be used in consideration of calculating the set temperature so as to reduce the required energy, but from the viewpoint of energy saving, in this embodiment, the correspondence relationship between the temperature reference and the enthalpy reference is set. We decided to use it together. Then, a set temperature having a smaller required energy is selected from the set temperatures calculated based on these two criteria. As a result, as shown in FIG. 7 (b), the cooling load (indicated by symbol Q in the figure) and the heating load (indicated by symbol R in the figure) can be reduced as much as possible. Can be achieved.

  In this embodiment, as a correspondence relationship between the temperature reference and the enthalpy reference, the outside air temperature and the set temperature are made to correspond linearly, and the outside air enthalpy and the set temperature are made to correspond linearly (FIG. 3 (a) and ( b)). Use of such a linear correspondence is advantageous in that the correspondence is not complicated and the control configuration is simplified. Needless to say, the correspondence relationship is such that the set temperature is automatically controlled, and is not limited to the linear correspondence relationship.

  Furthermore, in this embodiment, when the set temperature is selected (S140 in FIG. 4), if the temperature and humidity are relatively high, cooling and dehumidification (cooling operation) are at the center, so two set temperatures are used. Select the higher of the two. On the other hand, if the temperature and humidity are relatively low, heating and humidification (heating operation) are the center, so the lower of the two set temperatures is selected. Accordingly, since the set temperature is selected simply by comparison, the configuration of the set temperature selection process is simplified.

Here, the technical idea included in the above embodiment will be mentioned.
(A) In the above embodiment, the set temperature is controlled using the correspondence relationship. In this sense,
“Controlling the air conditioner that adjusts air to the outside air and sends the air that has been adjusted to the air conditioning room based on the set temperature, and sets the set temperature so that the energy required for air conditioning in the air conditioner becomes relatively small. An air conditioning system to control,
Correspondence relation storage means for storing correspondence relation obtained in advance so that the required energy becomes relatively small and capable of associating the temperature included in the adjustment range with reference to a predetermined factor with respect to the outside air. When,
An information acquisition means for acquiring outside air information;
A set temperature calculating means for calculating a temperature included in the adjustment range as a set temperature from the acquired outside air information using the correspondence relationship;
It is good also as having "."

  (B) In addition, as a predetermined factor that serves as a reference, in addition to the temperature of the outside air and the enthalpy of the outside air, the humidity and the temperature at the saturation point are exemplified. Therefore, the “predetermined factor may be the temperature of the outside air, the enthalpy of the outside air, the humidity, or the temperature of the saturation point”.

(C) Further, the temperature included in the adjustment range is calculated as the set temperature using a plurality of (two in the above embodiment) correspondences, and then the set temperature at which the required energy becomes smaller is selected. In this sense,
“Controlling the air conditioner that adjusts air to the outside air and sends the air that has been adjusted to the air conditioning room based on the set temperature, and sets the set temperature so that the energy required for air conditioning in the air conditioner becomes relatively small. An air conditioning system to control,
A correspondence relationship obtained in advance so that the required energy becomes relatively small, and a correspondence relationship storing a plurality of correspondence relationships that can associate the temperature included in the adjustment range with reference to a predetermined factor with respect to the outside air. Storage means;
An information acquisition means for acquiring outside air information;
Temperature calculating means for calculating a temperature included in the adjustment range from the acquired outside air information using the plurality of correspondence relationships;
A set temperature selection means for selecting, as the set temperature, a temperature at which the required energy becomes smaller among the plurality of calculated temperatures;
It is good also as having "."

  As mentioned above, although embodiment of this invention was explained in full detail, this invention can be implemented with a various form in the range which does not deviate from the meaning.

It is a schematic block diagram which shows the structure of the air conditioning system of embodiment of this invention. It is a typical air line figure for demonstrating determination of a correspondence. (A) is explanatory drawing which shows the correspondence of temperature reference | standard, (b) is explanatory drawing which shows the correspondence of enthalpy reference | standard. It is a flowchart which shows a preset temperature control process. It is a typical air line figure for illustrating selection of preset temperature. It is a typical air line figure for illustrating selection of preset temperature. It is explanatory drawing which shows the relationship between preset temperature, a cooling load, and a heating load.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Air conditioning system, 10 ... Air conditioner, 11 ... Air blower, 12 ... Humidification part, 13 ... Heating part, 14 ... Cooling part, 15 ... Humidification pipe, 16 ... Heating pipe, 17 ... Cooling pipe, 20 ... Automatic Control panel (first temperature setting means, second temperature setting means, set temperature selection means, enthalpy calculation means), 21 ... outside air temperature / humidity sensor (temperature / humidity acquisition means), 22 ... indoor temperature / humidity sensor, 23 ... storage unit ( Correspondence storage means), 30 ... boiler, 31 ... supply piping, 32 ... return piping, 40 ... refrigerator, 41 ... supply piping, 42 ... return piping, 51 ... hot water valve, 52 ... cold water valve, 61 ... Hot water pump, 62 ... Cold water pump, 90 ... Air conditioning room

Claims (13)

The air conditioner that adjusts the air to the outside air and sends the air that has been adjusted to the air conditioning room is controlled based on the set temperature, and the set temperature is controlled so that the energy required for air adjustment in the air conditioner becomes relatively small. An air conditioning system
The correspondence relationship obtained in advance so that the required energy becomes relatively small, the temperature correspondence relationship that can associate the temperature included in the adjustment range with respect to the outside air, and the enthalpy for the outside air. Correspondence storage means for storing an enthalpy correspondence capable of correlating the temperature included in the adjustment range with reference to
Temperature and humidity acquisition means for acquiring the temperature and humidity of the outside air;
First temperature calculating means for calculating a first temperature included in the adjustment range from the acquired outside air temperature using the temperature correspondence relationship;
Second temperature calculation means for calculating a second temperature included in the adjustment range from the temperature and humidity of the acquired outside air using the enthalpy correspondence relationship;
A set temperature selection means for selecting, as the set temperature, a temperature at which the required energy becomes smaller among the first and second temperatures;
An air conditioning system characterized by comprising: The air conditioning system according to claim 1,
The air-conditioning system characterized in that the temperature correspondence relationship is a linear correspondence of a temperature in a specific range of outside air to the adjustment range. The air conditioning system according to claim 1 or 2,
The enthalpy correspondence relationship is an air conditioning system in which an enthalpy of a specific range of outside air is linearly associated with the adjustment range. In the air conditioning system according to any one of claims 1 to 3,
Enthalpy calculating means for calculating the enthalpy of the outside air from the temperature and humidity of the outside air acquired by the temperature and humidity acquiring means,
The air conditioning system, wherein the second temperature calculating means calculates the second temperature from the enthalpy of the outside air calculated by the enthalpy calculating means. In the air-conditioning system according to any one of claims 1 to 4,
The set temperature selection means selects a higher temperature as the set temperature from the first and second temperatures when air conditioning mainly requires cooling operation of the air conditioner. . In the air-conditioning system according to any one of claims 1 to 5,
The set temperature selection means selects a lower temperature as the set temperature from the first and second temperatures when air conditioning mainly requires heating operation of the air conditioner. . When controlling an air conditioner that adjusts air to the outside air and sends the air that has been adjusted to the air conditioning room based on the set temperature, the set temperature is controlled so that the energy required for air conditioning in the air conditioner is relatively small A set temperature control method for
The correspondence relationship obtained in advance so that the required energy becomes relatively small, the temperature correspondence relationship that can associate the temperature included in the adjustment range with respect to the outside air, and the enthalpy for the outside air. The enthalpy correspondence that can associate the temperature included in the adjustment range with reference to is stored,
Using the temperature correspondence relationship, a first temperature included in the adjustment range is calculated from the acquired outside air temperature, and using the enthalpy correspondence relationship, from the acquired outside air temperature and humidity to the adjustment range. A temperature calculation process for calculating a second temperature included;
A set temperature selection process for selecting, as the set temperature, a temperature at which the required energy becomes smaller among the first and second temperatures;
A set temperature control method characterized by comprising: In the set temperature control method according to claim 7,
The set temperature control method characterized in that the temperature correspondence relationship is obtained by linearly matching the temperature of a specific range of outside air with the adjustment range. The set temperature control method according to claim 7 or 8,
The set temperature control method, wherein the enthalpy correspondence relationship is obtained by linearly matching an enthalpy of a specific range of outside air with the adjustment range. In the set temperature control method according to any one of claims 7 to 9,
It has an enthalpy calculation process that calculates the enthalpy of the outside air from the temperature and humidity of the outside air acquired,
In the temperature calculation process, the second temperature is calculated from the enthalpy of the outside air calculated in the enthalpy calculation process. In the setting temperature control method as described in any one of Claims 7-10,
In the set temperature selection process, when air conditioning mainly requires cooling operation of the air conditioner, a higher temperature is selected as the set temperature from the first and second temperatures. Temperature control method. In the setting temperature control method as described in any one of Claims 7-11,
In the set temperature selection processing, when air conditioning mainly requires heating operation of an air conditioner, a lower temperature is selected as the set temperature from the first and second temperatures. Temperature control method.   A program comprising each process in the set temperature control method according to any one of claims 7 to 12.

Images