JP6963351B2 - Air conditioner and management server for air conditioner - Google Patents

Description

The present invention relates to a technique for an air conditioner having high cooling efficiency while suppressing energy consumption.

When the air in the predetermined equipment is higher than the outside air temperature, the outside air heat exchange system is effective from the viewpoint of energy saving if the air is to be cooled.
There is also a technique called free cooling. In this method, the refrigerator is not operated, the water is directly cooled by the cold heat of the cooling water from the cooling tower, and the air conditioner is cooled by the cold water.

Patent Document 1 discloses a technique that contributes to energy saving by extending the annual free cooling operation time by producing cold water only with a cooling tower.

Patent Document 2 discloses a technique for rationalizing switching between automatic operation and manual operation during a time period when free cooling is effective.

In the configuration of the outside air heat exchange system, for example, heat exchangers are provided outdoors and indoors, and a pipe is connected between the two heat exchangers, and a coolant (typically "water") is contained in the pipe. ) Is circulated by the power of the pump.

In heat exchange, heat is transferred from the one with the higher temperature to the one with the lower temperature. Therefore, the heat exchange capacity varies depending on the outside air temperature. Therefore, the higher the outside air temperature (in other words, the smaller the temperature difference between the outside air and the coolant), the smaller the heat exchange capacity.

In order to improve the cooling efficiency of the outdoor heat exchanger by the outside air, as a technology that uses water, the principle of lowering the outside air temperature by exposing the atomized water to the outside air and removing the heat of vaporization from the outside air is used. There is.

Patent Document 3 states that the heat transfer performance is maintained while maintaining the cooling effect of the outside air by controlling the amount of atomization so that the surface of the outdoor heat exchanger does not condense while maintaining the cooling effect of the outside air by the atomized water. Air conditioning technology that can prevent corrosion is disclosed.

Japanese Unexamined Patent Publication No. 2008-215679 Japanese Unexamined Patent Publication No. 2016-23899 Japanese Unexamined Patent Publication No. 2012-233641

For example, there are many working environments (server rooms, blast furnaces, aquaculture facilities for agricultural and marine products represented by vinyl greenhouses, etc.) where the temperature will be 40 degrees Celsius or higher unless the cooling equipment is operated. In such an environment, there is a latent desire to achieve energy saving by using the technology of free cooling and outside air heat exchange system even when the outside temperature is high such as in summer.

For example, setting an environment of 40 degrees Celsius to 30 degrees Celsius is also possible with the technology of free cooling or an outside air heat exchange system in the season when the outside temperature is low.
However, the techniques disclosed in Patent Documents 1, 2 and 3 described above cannot be said to be techniques that contribute to energy saving in the summer when the temperature exceeds 35 degrees Celsius.

An object to be solved by the present invention is to provide a technique for effectively operating an outside air heat exchange system even in a season or region where the outside air temperature is high.

To solve the above-mentioned problems
The present invention relates to the first invention and the second invention, and the third invention relating to a computer program for controlling a device according to the first or second invention.

(First invention)
The first invention relates to an air conditioner that takes in the target air to be adjusted in the target equipment, cools the target air, and returns the target air to the target equipment.
This air conditioner has an air cooler that takes in outside air and cools it.
An outside air drawing fan for sucking outside air into the air cooler,
The first watering machine that cools the outside air stored in the air cooler by watering
A heat exchanger that performs heat exchange with the target air using the cold air cooled in the air cooler, and
An adjustment air blower fan for drawing the target air into the heat exchanger and returning the processed air after heat exchange to the target equipment.
A second sprinkler that humidifies the outside air before it is discharged as the outside air through the heat exchanger through the outside air drawn into the air cooler by the outside air drawing fan.
To be equipped.
The heat exchanger includes a first heat exchanger that performs heat exchange between the outside air cooled by being humidified by the second sprinkler and the target air.
The target air and the second heat exchanger that performs heat exchange of the cold air cooled in the air cooler are continuously connected in the vertical direction, and the first heat exchanger is replaced with the second heat exchanger. Prepare by positioning it above.
The second watering machine shall sprinkle water from above the second heat exchanger.
A substantially U-shaped relay path in which the target air drawn by the adjustment air blower fan passes through the first heat exchanger in the horizontal direction and then passes through the second heat exchanger in the opposite direction in the horizontal direction. Be prepared.
The outside air draw fan is to discharge the outside air sucked into the air cooler by way of in the order of the second heat exchanger and the first heat exchanger of the.
The adjusting air blower fan returns the target air to the target equipment via the first heat exchanger, the relay path, and the second heat exchanger .
It is an air conditioner as described above (see FIG. 1).

(Glossary)
"Target equipment" is equipment that requires air cooling, such as a server room that operates a large number of computer equipment, manufacturing equipment for things such as steel mills and food processing plants, and vinyl houses that manufacture agricultural products. Most of the equipment has a high temperature of air inside the equipment.

(Action)
The outside air drawing fan sucks the outside air into the air cooler, and the first sprinkler sprinkles the outside air to cool it. The cooled outside air is discharged as outside air via the second heat exchanger and the first heat exchanger.
On the other hand, the adjusting air blower fan plays a role of drawing in the target air of the target equipment, exchanging heat with the outside air via the first heat exchanger and the second heat exchanger, cooling the target equipment, and returning the target equipment to the target equipment.
The outside air that has been heat-exchanged by the second heat exchanger rises in temperature by the amount of cooling the target air and enters the first heat exchanger, but since it has not reached the wet-bulb temperature, it can be humidified in most cases. Is. Therefore, the temperature is lowered by humidifying with a second watering machine. The lowered temperature of the outside air enables heat exchange in the first heat exchanger. Therefore, the temperature of the target air is lowered by the first heat exchanger and returned to the target equipment. The outside air whose temperature has risen by lowering the temperature of the target air in the first heat exchanger is released.

Since heat exchange by the outside air cooled by the first sprinkler and heat exchange performed by cooling by humidifying the outside air whose temperature has risen after the heat exchange is performed, the outside air is performed even in the summer when the outside temperature is high. It can be operated as a heat exchange system. That is, it contributes to energy saving (see FIGS. 4 and 5; even if the outside temperature reaches 35 degrees Celsius in the daytime in summer and the target air is 40 degrees Celsius, without using a method such as refrigerant compression. It shows that the temperature of the target air could be cooled to 27.9 degrees Celsius).

(Action)
The temperature of the outside air cooled by the air cooler rises in the second heat exchanger. Since it becomes easier to move upward as the temperature rises, the fact that the first heat exchanger that cools the outside air again is located above the second heat exchanger can reduce the load on the outside air drawing fan. It is rational.

(Variation 2 of the first invention)
In the first invention, it is more preferable that the water supplied to the first watering machine and the second watering machine is well water.
Well water, that is, groundwater, has a nearly constant water temperature throughout the year. Therefore, compared to the case of using tap water, the water temperature of well water is lower than that of tap water in summer. Then, the cooling effect of the first watering machine and the second watering machine becomes higher than that of using tap water.

(Variation 3 of the first invention)
It is more preferable that the first invention is formed as follows.
That is, a discharge outside air temperature / humidity measuring device for measuring the temperature and humidity of the outside air discharged by the outside air drawing fan,
The second sprinkler is provided with a control means for calculating the amount of spray to be sprayed based on the temperature and humidity measured by the outside air temperature / humidity measuring device.
Then, the second sprinkler humidifies the target air with the spray amount calculated by the control means (see FIG. 6).

(Action)
If the amount sprayed by the second sprinkler is larger than the appropriate amount, the energy required for spraying is wasted. If the amount sprayed by the second watering nozzle is less than the appropriate amount, the outside air is not sufficiently cooled and the temperature of the adjusting air cannot be sufficiently lowered.
Humidification with an appropriate amount of spray calculated by the control means enhances energy efficiency.

(Variation 4 of the first invention)
It is more preferable that the first invention is formed as follows.
That is, a water-cooled third heat exchanger is provided between the regulated air blower fan and the second heat exchanger (see FIG. 7).
It is more preferable if well water can be used for water cooling of the third heat exchanger.

(Action)
The target air is cooled via the first heat exchanger and the second heat exchanger, but is generally still higher than the water temperature of the supplied water.
Therefore, the target air whose heat exchange has been completed by the first heat exchanger and the second heat exchanger is further heat-exchanged by the water-cooled third heat exchanger. As a result, the regulated air that is closer to the temperature of water, which is the refrigerant of the third heat exchanger, can be returned to the target equipment.

(Second invention)
The second invention relates to a management server that receives various data from one or a plurality of air conditioners and transmits control data based on the received various data to the air conditioner according to the first invention.
The management server is
A data receiving means for receiving the above-mentioned various data from the air conditioner, and
A database that stores various data received by the data receiving means,
A calculation means for calculating control data for controlling the air conditioner using the data stored in the database and various data received by the data receiving means, and a calculation means for calculating the control data for controlling the air conditioner.
A control data transmission means for transmitting the control data calculated by the calculation means to the air conditioner, and
(See FIG. 10).

(Action)
The data receiving means receives various data from the air conditioner. The database stores various data received by the data receiving means.
Using the data stored in the database and various data received by the data receiving means, the calculation means calculates the control data for controlling the air conditioner. The control data transmission means transmits the control data calculated by the calculation means to the air conditioner.

The air conditioner that has received the control data is controlled in various operations and its stop based on the control data.
Since the management server can accumulate various data for each target facility, it is possible to acquire data that contributes to data analysis based on the various data and creation of control data for more efficient and effective operation.

(Variation of the second invention)
The second invention may be formed as follows.
That is, the management server includes a weather forecast data receiving means for receiving the weather forecast data.
The calculation means calculates control data using the received weather forecast data as well (see FIG. 11).

(Action)
The weather forecast data receiving means receives the weather forecast data, and the calculation means calculates the control data using the received weather forecast data as well.
It contributes to predicting changes in temperature and humidity and controlling the operation so that the operation is rational in total.

According to the first invention, it has been possible to provide an air conditioner that effectively operates an outside air heat exchange system with low power consumption even in a season or region where the outside air temperature is high.

The air conditioner according to the first embodiment is illustrated together with symbols such as a pump and a thermometer and a hygrometer. It is a flowchart when the air conditioner which concerns on 1st Embodiment is operated | operated. It shows changes in the outside air temperature, the outside air humidity, and the target air temperature when the air conditioner according to the first embodiment is basically operated. It is a flowchart when the air conditioner which concerns on 1st Embodiment is operated by application. It shows changes in the outside air temperature, the outside air humidity, and the target air temperature when the air conditioner according to the first embodiment is operated in an applied manner. It is a flowchart in the case of switching from the basic operation to the applied operation of the air conditioner which concerns on 1st Embodiment. The air conditioner according to the second embodiment is illustrated together with symbols such as a pump and a thermometer and a hygrometer. It is a psychrometric chart when the air conditioner which concerns on 1st Embodiment is operated by the basic operation. It is a psychrometric chart when the air conditioner which concerns on 1st Embodiment is operated by application. It is a conceptual diagram which shows the case of operating a plurality of air conditioners remotely. It is a conceptual diagram showing the development system of the management server.

Hereinafter, embodiments of the present invention will be described with reference to the drawings (FIGS. 1 to 11). The present invention is not limited to the embodiments, and the following embodiments are embodiments for more specifically interpreting the present invention.

(Fig. 1)
FIG. 1 shows the air conditioner according to the first embodiment together with symbols such as a pump and a thermometer shop hygrometer.
This air conditioner is for cooling the indoor air (target air) of the server room as the target equipment. It does not use the cold heat generated by the compressor and the expansion of the medium compressed by the compressor. This is so-called free cooling.

This air conditioner has an air cooler for taking in outside air and cooling it.
An outside air drawing fan for sucking outside air into the air cooler,
The first watering machine that cools the outside air stored in the air cooler by watering
A heat exchanger that performs heat exchange with the target air using the cold air cooled in the air cooler, and
An adjustment air blower fan for drawing the target air into the heat exchanger and returning the processed air after heat exchange to the target equipment.
A second sprinkler that humidifies the outside air before it is discharged as the outside air through the heat exchanger through the outside air drawn into the air cooler by the outside air drawing fan.
To be equipped.

The heat exchanger includes a first heat heat exchanger that performs heat exchange between the outside air cooled by being humidified by the second sprinkler and the target air, and the target air and the target air. It consists of a second heat exchanger that performs heat exchange of the cold air cooled in the cooler.
The first heat exchanger is located above the second heat exchanger. Then, the second watering nozzle sprays from above the second heat exchanger.

The outside air drawing fan discharges the outside air sucked into the air cooler via the second heat exchanger and the first heat exchanger.
Further, the adjusting air blower fan returns to the target equipment via the first heat exchanger and the second heat exchanger.

The water sprayed from the first watering nozzle, which is used to cool the outside air taken into the air cooler, is received by the lower water tank installed below the air cooler. The water stored in the lower water tank is sucked up by the pump (P) and circulates as water sprinkled from the first watering machine. The amount of water supplied is continuously measured by a water meter (F1).

The second watering nozzle sprays water onto the outside air in order to lower the air temperature by raising the humidity of the outside air whose temperature has risen after the heat exchange is completed by the second heat exchanger. The water sprayed by the second sprinkler is illustrated as being supplied from a water storage tank labeled "Supply Water". If this supply water can secure well water (so-called groundwater), it is preferable.

Regarding the outside air taken in by the air conditioner according to the present embodiment, the temperature is measured by a thermometer (T1) and the humidity is measured by a hygrometer (H1). Further, for the outside air humidified and cooled by spraying with the second sprinkler, the temperature is measured with a thermometer (T2) and the humidity is measured with a hygrometer (H2).

On the other hand, the temperature before adjustment of the indoor air (adjustment target air) of the target equipment is measured by a thermometer (T3), and the humidity is measured by a hygrometer (H3). Then, the temperature after being adjusted by the adjusting air blower fan is measured by a thermometer (T4), and the humidity is measured by a hygrometer (H5).

The temperature of the outside air first cooled by watering with the first watering nozzle is measured with a thermometer (T5), and the humidity is measured with a hygrometer (H5).
The temperature discharged by the outside air drawing fan is measured with a thermometer (T0), and the humidity is measured with a hygrometer (H0).

The water sprinkled by the first sprinkler is supplied by a pump that pumps water from the lower water tank, and the flow rate is measured by a flow meter (F1) and the temperature is measured by a thermometer (T6). Further, the watering by the second watering machine is provided from the pump for pumping the water in the lower water tank and the supply water. The temperature of the supply water is the thermometer (T7), the flow rate provided to the second sprinkler by the pump is the flow meter (F2), and the flow rate of the supply water to the second sprinkler is the flow meter (F3). So, we are measuring each.

As described above, the temperature and humidity of the outside air discharged by the outside air drawing fan are measured by a thermometer (T3) and a hygrometer (H3).
The control means (not shown) for calculating the amount of spray to be sprayed by the second sprinkler based on the temperature and humidity measured by the thermometer (T3) and the hygrometer (H3) is the air conditioner in the present embodiment. Is equipped.

The second sprinkler sprays the amount of spray calculated by the control means on the outside air that has been cooled by the air cooler but has been heat-exchanged by the second heat exchanger (the temperature has risen). As a result, the target air is cooled by the outside air where the temperature is lowered and the humidity is raised.
In this embodiment, since the target air is continuously cooled, it is first cooled by the first heat exchanger using the outside air cooled by the second sprinkler, and then cooled by the first sprinkler. After being cooled by the second heat exchanger using the outside air cooled in the air cooler, it is returned to the target equipment by the adjusting air blower fan.

The water to be supplied is supplied to the lower water tank, the first watering machine, and the second watering machine. In addition to being equipped with a first valve that turns on and off the supply from the supply source, it also turns on and off the supply to three locations with a three-way valve. The supply to the lower water tank is turned on and off by the float valve.

The amount of supply to the first sprinkler is measured by a flow meter (F1), and the supply is turned on and off by the third valve. The supplied water temperature is measured with a thermometer (T6).

The amount of supply to the second sprinkler is measured by a flow meter (F2), and the supply is turned on and off by the second valve. In addition, it also controls the on / off of the supply from the three-way valve. The amount supplied from the three-way valve is measured with a flow meter (F3).

The lower water tank receives excess water droplets and dew condensation sprayed by the first and second watering nozzles. Water that is likely to overflow from the lower tank is discharged through the overflow nozzle. Condensation on the outer surface of the lower water tank is discharged through the drain nozzle.
The water temperature in the lower water tank is measured with a water temperature gauge (T8).

(Fig. 2)
FIG. 2 is a flowchart in the case where only the air cooler is operated (basic operation) to cool the outside air when the air conditioner shown in FIG. 1 is used to cool the air in the greenhouse.

The outside air temperature is measured with a thermometer (T1), and the humidity of the outside air is measured with a hygrometer (H1) (S1). At this time, the outside temperature was 35 degrees Celsius and the humidity was 54%.
On the other hand, the air in the greenhouse (target air) to be adjusted was measured with a thermometer (T3) and a hygrometer (H3) (S2). Then, it was 40 degrees Celsius and 50% humidity.

At this stage, it is difficult to determine whether the basic operation is sufficient or not, so the selection is made to the basic operation (“No” in S3). If the basic operation is not enough, it is a step to the applied operation (S4).

In the basic operation, the air cooler is cooled by the second watering nozzle, and the outside air intake fan is operated to cool the outside air taken into the air cooler. The outside air is sent to the second heat exchanger and the first heat exchanger by the continuous operation of the outside air intake fan (S5).

On the other hand, when the regulated air blower fan operates, the regulated air is taken into the first heat exchanger and the second heat exchanger from the greenhouse to be adjusted (S6). Then, the second heat exchanger exchanges heat with the already cooled outside air to cool the target air.

The cooled target air is returned to the greenhouse by the operation of the conditioned air blower fan, the outside air after heat exchange is warmed, and is discharged from the air conditioner by the operation of the outside air intake fan (S7).

The temperature of the conditioned air was 29.2 degrees Celsius and the humidity was 91%. The outside air discharged was 38.4 degrees Celsius and the humidity was 47.5%. Only by operating the second sprinkler, the outside air intake fan, the regulated air blower fan, etc., the air sent to the greenhouse fell below 30 degrees Celsius.

(Fig. 3)
FIG. 3 shows changes in the outside air temperature, the outside air humidity, and the target air temperature when the air conditioner according to the first embodiment is basically operated.

(Fig. 4)
The applied operation using the air conditioner according to the first embodiment will be described with reference to the flowchart shown in FIG.
The applied operation is the heat exchange using the cold heat of the outside air that has completed heat exchange in the second heat exchanger by lowering the temperature again using the first watering nozzle (although the humidity rises at the same time). It is executed by a single heat exchanger.

The conditions of the outside air taken in and the air to be adjusted are the same as those of the above-mentioned basic operation (FIG. 2). That is, the outside air temperature is 35 degrees Celsius, the outside air humidity is 54%, the temperature of the target air is 40 degrees Celsius, and the humidity is 50%.

In the applied operation, it is the same to cool the air cooler with the second watering nozzle (S11). In addition, the first sprinkler cools the outside air inside the first heat exchanger (the heat exchange has been completed once in the second heat exchanger) (S12).

By the continuous operation of the outside air intake fan, the outside air is cooled by the air cooler and passes through the second heat exchanger and the first heat exchanger (S13).
On the other hand, from the greenhouse, which is the target equipment, the regulated air passes through the first heat exchanger and the second heat exchanger by the operation of the regulated air blower fan, and is cooled by the two-stage heat exchange (S14).

The outside air is discharged by the continuous operation of the outside air intake fan, and the adjusted air is returned to the greenhouse (S15). At this time, the temperature of the adjusting air was 27.9 degrees Celsius and the humidity was 98.0%. The discharged outside air was 32.0 degrees Celsius and the humidity was 90.0%.
By adding the functions of the second sprinkler and the first heat exchanger, the temperature of the regulated air could be further lowered from the basic operation.

(Fig. 5)
FIG. 5 shows changes in the outside air temperature, the outside air humidity, and the target air temperature when the air conditioner according to the first embodiment is operated in an applied manner. In the graph, the range of the effect of humidifying by watering with the second watering machine is shown by hatching.

(Fig. 6)
FIG. 6 shows the steps in the case of continuous operation, in which the operation is performed only in the basic operation or in the middle of the operation, the operation is switched to the applied operation.
Measure the temperature and humidity of the outside air discharged by the basic operation (S8), and determine whether or not the operation is applied (whether or not a further cooling effect can be obtained by humidifying the outside air in the first heat exchanger). Judge (S3). This determination is performed by a control means (not shown).

(Fig. 7)
FIG. 7 shows an air conditioner according to the second embodiment. The difference from the first embodiment is that a water-cooled third heat exchanger is provided between the regulated air blower fan and the second heat exchanger.
That is, in the second embodiment, it is intended to further cool the regulated air by also providing a water-cooled third heat exchanger using well water (well water, groundwater).

A pump (P2) sends well water from the well water supply source to the third heat exchanger via the cold water edge cutter. The third heat exchanger is cooled by well water and exchanges heat with the regulated air that has completed heat exchange at the second heat exchanger.

The cold water edging device plays a role of removing (or detoxifying) dirt components contained in well water and components that cause corrosion. Since the cold water edge cutter itself needs to be resistant to corrosion and dirt, the material used is stainless steel, titanium alloy, etc., which is optimal for the quality of the well water.

Since the target air cooled by the third heat exchanger causes dew condensation, a portion where the dew condensation can be stored is provided below the third heat exchanger, and a drain nozzle (2) is provided at the lower end of the portion. Be prepared. Condensed water is discharged from the air conditioner through the drain nozzle (2).

At the well water supply source, the temperature of the well water is measured by a thermometer (T12), and the flow rate to the cold water edge cutter is measured by a flow meter (F6).
The water temperature of the water sent from the cold water edge cutter to the third heat exchanger via the pump (P2) is measured by a thermometer (T10), and the flow rate is measured by a flow meter (F5).

The temperature of the water that leaves the third heat exchanger and is returned to the chilled water edging machine is measured by a thermometer (T11), and the temperature of the water discharged from the chilled water edging machine is measured by a thermometer (T13). ..
Optimal by continuously measuring the water temperature measured by the thermometer (T10, T11, T12, T13), the flow rate measured by the flow meter (F5, F6), and the temperature of the adjusting air. The control device controls so that the amount of water is sent by the pump (P2).

According to the second embodiment shown in FIG. 7, it is possible to further cool the adjusted air as compared with the applied operation described in the first embodiment. Even in the heat exchange in the third heat exchanger, power such as compression of the refrigerant used in general cooling equipment is not required, and the air conditioner is an energy-saving air conditioner.

If there is a possibility that impurities such as sand and volcanic ash are mixed in the cold water edging machine and the supply water source mentioned above, a multi-cyclone is attached to the entrance of the heat exchanger. Centrifugation by the multi-cyclone removes dirt and enables continuous operation.

When the water temperature of the well water is extremely low, the water drained through the third heat exchanger may be used as the supply water used for the basic operation or the applied operation.

(Fig. 8)
FIG. 8 is a moist air hx diagram in the basic operation.
The horizontal axis shows the slow / fast temperature h (Celsius), the vertical axis shows the absolute temperature x, and the movement according to the air flow is shown on the graph. The vertical axis also shows the water vapor pressure.

(Fig. 9)
FIG. 9 is a moist air hx diagram in applied operation.
Similar to FIG. 8, the horizontal axis shows the slow / fast temperature h (Celsius) and the vertical axis shows the absolute temperature x, and the movement according to the air flow is shown on the graph. The vertical axis also shows the water vapor pressure.

(Fig. 10)
FIG. 10 is a conceptual diagram showing a case where a plurality of air conditioners according to the first embodiment or the second embodiment are remotely operated.
The air conditioners α and β can send and receive data to and from the management server via a communication network.
The control device described above can be present in the management server for collective control. On the other hand, while a local control device exists in each air conditioner, the comprehensive control device in the management server transmits the latest version of the control program to the local control device and updates the control program. good.

The air conditioners α, β, ... Send measurement data from each thermometer, each hygrometer, and each flow meter to the management server.
In the management server, the measurement data receiving means for receiving the measurement data transmitted from each air conditioner α, β, ..., the measurement database for accumulating the measurement data, the received measurement data and the past measurement. It includes a calculation means for calculating control data using data, and a control data transmission means for transmitting the calculated control data to each air conditioner α, β, ....

Each air conditioner α, β, ... That has received the control data controls the outside air intake fan, the conditioned air blower fan, each pump, each valve, etc. with the received control data, and is optimal. Continue driving.

(Fig. 11)
FIG. 11 is a conceptual diagram showing variations of the management server shown in FIG. That is, the management server is provided with a weather forecast data receiving means for receiving the weather forecast data.

The calculation means also calculates the control data using the received weather forecast data. This contributes to predicting changes in temperature and humidity and controlling the operation so that the operation is rational in total. For example, with operation control, such as increasing the operation just before the expected time of the highest temperature and weakening the operation during the time of the highest temperature, emphasizing the electricity rate or the cooling effect. In relation, contribute to rational operation.

The present invention has potential in the manufacturing industry of air conditioners, the information service industry that provides control programs for air conditioners, the consulting industry related to air conditioning, and the like.

Claims (6)

An air conditioner that takes in the target air to be adjusted in the target equipment, cools it, and returns it to the target equipment.
An air cooler that takes in outside air and cools it,
An outside air drawing fan for sucking outside air into the air cooler,
The first watering machine that cools the outside air stored in the air cooler by watering
A heat exchanger that performs heat exchange with the target air using the cold air cooled in the air cooler, and
An adjustment air blower fan for drawing the target air into the heat exchanger and returning the processed air after heat exchange to the target equipment.
A second sprinkler that humidifies the outside air before it is discharged as the outside air through the heat exchanger through the outside air drawn into the air cooler by the outside air drawing fan.
With
The heat exchanger includes a first heat heat exchanger that performs heat exchange between the outside air cooled by being humidified by the second sprinkler and the target air.
The target air and the second heat exchanger that performs heat exchange of the cold air cooled in the air cooler are continuously connected in the vertical direction, and the first heat exchanger is replaced with the second heat exchanger. To prepare for the position above
The second watering machine shall sprinkle water from above the second heat exchanger.
A substantially U-shaped relay path in which the target air drawn by the adjustment air blower fan passes through the first heat exchanger in the horizontal direction and then passes through the second heat exchanger in the opposite direction in the horizontal direction. Prepare,
The outside air drawing fan discharges the outside air sucked into the air cooler through the second heat exchanger and the first heat exchanger in this order.
The conditioned air blower fan is intended to return the target air to the target equipment via the first heat exchanger, the relay path, and the second heat exchanger. Harmony machine. The water supplied to the first watering machine and the second watering machine was well water.
The air conditioner according to claim 1. An exhaust outside air temperature / humidity measuring device that measures the temperature and humidity of the outside air discharged by the outside air drawing fan, and the outside air temperature / humidity measuring device.
A control means for calculating the amount of water to be sprinkled by the second sprinkler based on the temperature and humidity measured by the outside air temperature / humidity measuring device.
With
The air conditioner according to claim 1 or 2 , wherein the second sprinkler humidifies the target air with the sprinkling amount calculated by the control means. The air conditioner according to any one of claims 1 to 3 , wherein a water-cooled third heat exchanger is provided between the conditioned air blower fan and the second heat exchanger. A management server that receives various data from one or more air conditioners and transmits control data based on the received data to the air conditioners.
A data receiving means for receiving the above-mentioned various data from the air conditioner, and
A database that stores various data received by the data receiving means,
A calculation means for calculating control data for controlling the air conditioner using the data stored in the database and various data received by the data receiving means, and a calculation means for calculating the control data for controlling the air conditioner.
A control data transmission means for transmitting the control data calculated by the calculation means to the air conditioner, and
With
The air conditioner is a management server as the air conditioner according to any one of claims 1 to 4. The management server includes a weather forecast data receiving means for receiving the weather forecast data.
The above-mentioned calculation means is to calculate the control data by using the received weather forecast data as well.
The management server according to claim 5.

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