Watering system

Abstract

To provide a sprinkler system that can reduce cost.SOLUTION: A sprinkler system includes: a water treatment device 110 for changing a surface potential of a particle existing in the water to neutral or minus; and a sprinkler device 120 for sprinkling water treated by the water treatment device 110 to an outdoor unit 6 of an air conditioner.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a technique for a sprinkler system that sprinkles water on an outdoor unit of an air conditioner. [Background technology]

[0002] Conventionally, a technique for a sprinkler system that sprinkles water on an outdoor unit of an air conditioner has been publicly known, as described in Patent Document 1, for example.

[0003] The cooling device (sprinkler system) described in Patent Document 1 can spray treated water (RO treated water) from which impurities have been removed in a reverse osmosis membrane treatment device (RO treatment device) from spray nozzles toward the outdoor unit. By spraying such highly pure treated water onto the outdoor unit, it is possible to cool the outdoor unit while preventing scale from adhering to the outdoor unit.

[0004] It is anticipated that the sprinkler system described in Patent Document 1 will also be applied to apartment buildings and other multi-unit dwellings. However, the above-mentioned sprinkler system is difficult to apply to ordinary housing such as apartment buildings because the initial cost of the reverse osmosis membrane treatment device (RO treatment device) and running costs such as periodic replacement of the RO membrane are relatively high. In particular, when applying the above-mentioned sprinkler system to apartment buildings and other multi-unit dwellings, it is necessary to install a water meter that detects the amount of treated water used in each dwelling unit in order to collect the cost of the reverse osmosis membrane treatment device (RO treatment device) according to the amount of treated water used in each dwelling unit, which raises concerns about further increases in costs. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5551927 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to provide a watering system that can reduce costs. [Means for solving the problem]

[0007] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0008] That is, in claim 1, a water treatment device that changes the surface potential of particles present in water to neutral or negative, and a sprinkler device that sprinkles water treated by the water treatment device onto an outdoor unit of an air conditioner, a control unit configured to be able to acquire the operating state of the air conditioner and the temperature of the outdoor unit; Equipped with The sprinkler device includes a first sprinkler unit that sprinkles mist-like water onto the outdoor unit, and a second sprinkler unit that sprinkles water with larger particle sizes than the particle sizes of water sprinkled by the first sprinkler unit onto the outdoor unit, and the control unit controls the operation of the first sprinkler unit and the second sprinkler unit, and in a first control that is executed when the air conditioner is in cooling operation, the first sprinkler unit sprinkles water when the temperature of the outdoor unit reaches a predetermined temperature or higher, and in a second control that is executed when the air conditioner is in heating operation, the second sprinkler unit sprinkles water when the temperature of the outdoor unit falls below the predetermined temperature. It is something.

[0009] In claim 2, the water treatment device is arranged upstream of the branching point in the pipe that guides water to multiple dwelling units in an apartment building, where the pipe branches off to each of the multiple dwelling units, and the sprinkler device is provided in the outdoor unit installed in the dwelling unit.

[0010] In claim 3, In the first control, the control unit causes the first sprinkler unit to perform sprinkling and then the second sprinkler unit to perform sprinkling. It is something.

[0011] In claim 4, The control unit, in the second control, does not perform water sprinkling by the first water sprinkling unit, but performs water sprinkling only by the second water sprinkling unit. It is something. [Effects of the Invention]

[0014] The present invention has the effect of reducing costs. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic diagram showing the overall configuration of a water sprinkler system according to an embodiment and an apartment building to which the system is applied; [Figure 2] (a) is a front view of the sprinkler device provided in the outdoor unit, and (b) is a side view of the same. [Figure 3] 4 is a flowchart showing an example of a control mode of the water sprinkler system. [Figure 4] 4 is a flowchart showing a continuation of FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0016] A watering system 100 according to one embodiment of the present invention will be described below.

[0017] In this embodiment, an example is shown in which the sprinkler system 100 is used in an apartment building or other collective housing H. Therefore, the following will first provide an overview of the water supply facilities of the collective housing H.

[0018] As shown in FIG. 1, the flow rate of clean water supplied from a waterworks bureau W to an apartment building H is measured by a water meter 1 and stored in a water tank 2. The clean water stored in the water tank 2 is supplied to each dwelling unit (dwelling units H1, H2, H3, etc.) of the apartment building H through pipes that branch off at a branch point P. In this embodiment, a water treatment device 110 (described below) is installed upstream of the branch point P. FIG. 1 shows only the waterworks equipment for dwelling unit H1, and the other dwelling units are not shown. The following description of the waterworks equipment focuses on dwelling unit H1.

[0019] The flow rate of the clean water supplied to the dwelling unit H1 is measured by the individual water meter 3. The clean water whose flow rate is measured by the individual water meter 3 is branched into two pipes. The clean water supplied from the individual water meter 3 to one pipe is supplied to the water heater 4, heated appropriately, and then supplied to the hot water supply equipment 5 via the hot water supply pipe L1. The clean water supplied from the individual water meter 3 to the other pipe (water supply pipe L2) is supplied to the hot water supply equipment 5 without passing through the water heater 4.

[0020] The hot water supply equipment 5 includes, for example, a bath, a washbasin, a washing machine, a toilet, a sink, etc. In the hot water supply equipment 5, relatively high-temperature clean water heated by the water heater 4 is mixed with relatively low-temperature clean water not heated by the water heater 4, and the clean water at the desired temperature can be used. The clean water used in the hot water supply equipment 5 is discharged into the sewer system via a pipe (drainage pipe L3).

[0021] Furthermore, the water supply pipe L2 branches off and sprays water onto the outdoor unit 6 of the air conditioner (air conditioner) installed in the dwelling unit H1. By spraying clean water onto the outdoor unit 6, the temperature of the outdoor unit 6 can be regulated (cooled, etc.). Regulating the temperature of the outdoor unit 6 can help save energy in the air conditioner. In this embodiment, water is sprayed onto the outdoor unit 6 by a sprinkler system 120, which will be described later.

[0022] Next, we will explain the configuration of the sprinkler system 100. The sprinkler system 100 aims to save energy in air conditioning equipment by sprinkling water on the outdoor units 6 of each dwelling unit in the apartment building H. The sprinkler system 100 mainly comprises a water treatment device 110 and a sprinkler device 120.

[0023] The water treatment device 110 is a device capable of changing the surface potential of impurities (particles) present in water to neutral or negative. The water treatment device 110 is installed midway through the pipe that supplies clean water from the water tank 2 to each dwelling unit (more specifically, upstream of the branch point P). The water treatment device 110 generates electrons by passing a minute modulated current through a coil wound around the outside of the pipe, and can change the surface potential of particles in the water (e.g., crystalline particles of mineral components such as calcium, magnesium, and silica) from positive to neutral or negative. This causes the particles to repel each other from negatively charged interfaces (e.g., the inner wall surface of the pipe or the surface of the outdoor unit 6), thereby preventing the particles from adhering to the pipe or the outdoor unit 6.

[0024] In the following, the process of changing the surface potential of particles in water to neutral or negative by the water treatment device 110 may be referred to as "water treatment." Furthermore, water that has been treated by the water treatment device 110 may be referred to as "treated water."

[0025] Because the water treatment device 110 is located upstream of the branch point P, water that has been treated collectively by the water treatment device 110 can be supplied to each dwelling unit. In other words, by sharing the water treatment device 110 among multiple dwelling units, the initial cost and running costs of the water treatment device 110 can be shared and reduced.

[0026] 1 and 2 sprinkles treated water supplied via a water supply pipe L2 onto the outdoor unit 6. As shown in FIG. 2, the sprinkler device 120 mainly includes a first sprinkler unit 121, a second sprinkler unit 122, and a control unit 123.

[0027] The first sprinkler unit 121 atomizes the treated water and sprays it out. The first sprinkler unit 121 mainly includes a first electromagnetic valve 121a and a first nozzle 121b.

[0028] The first electromagnetic valve 121a is an on-off valve that switches between allowing and not allowing the flow of treated water. The first electromagnetic valve 121a can be operated by an electric signal from the control unit 123, which will be described later.

[0029] The first nozzle 121b is an outlet that atomizes and sprays the treated water. Various types of nozzles (single-fluid nozzle, two-fluid nozzle, etc.) can be used as the first nozzle 121b. The first nozzle 121b is connected to the first electromagnetic valve 121a. The first nozzle 121b can adjust (atomize) the treated water supplied via the first electromagnetic valve 121a into particles of a predetermined size and spray the water in a mist form.

[0030] The second sprinkler unit 122 atomizes the treated water and sprays it out. The second sprinkler unit 122 mainly includes a second electromagnetic valve 122a and a second nozzle 122b.

[0031] The configurations of second solenoid valve 122a and second nozzle 122b of second sprinkler unit 122 are generally similar to those of first solenoid valve 121a and first nozzle 121b of first sprinkler unit 121, and therefore detailed description thereof will be omitted. In this embodiment, the size (particle size) of the treated water atomized by second nozzle 122b is larger (coarser) than the size (particle size) of the treated water atomized by first nozzle 121b.

[0032] First sprinkler unit 121 and second sprinkler unit 122 are provided on the top of outdoor unit 6. First sprinkler unit 121 and second sprinkler unit 122 are arranged with their nozzles (first nozzle 121b and second nozzle 122b) facing the outdoor unit 6. The nozzles are adjusted to positions that allow treated water to be sprinkled over a wide area of ​​outdoor unit 6.

[0033] Control unit 123 controls the operation of first sprinkler unit 121 and second sprinkler unit 122. Control unit 123 is mainly composed of an arithmetic processing unit such as a CPU, and storage devices such as RAM and ROM. The storage device of control unit 123 stores information and various programs necessary to control the operation of first sprinkler unit 121 and second sprinkler unit 122.

[0034] The control unit 123 is electrically connected to the first solenoid valve 121a and the second solenoid valve 122a. The control unit 123 controls the operation (opening and closing) of the first solenoid valve 121a and the second solenoid valve 122a, thereby allowing the first sprinkler unit 121 and the second sprinkler unit 122 to spray the treated water as desired.

[0035] The control unit 123 is also electrically connected to the air conditioning unit (outdoor unit 6) of the dwelling unit in which it is installed, and can detect the operating state (whether it is operating or stopped) of the air conditioning unit (outdoor unit 6). The control unit 123 can also determine whether the air conditioning unit is operating in cooling mode or heating mode.

[0036] Next, we will explain the control modes (first control and second control) of the sprinkler system 100 configured as described above. The control unit 123 can appropriately sprinkle treated water to the outdoor unit 6 by repeating the control flows shown in Figures 3 and 4. These will be explained in order below.

[0037] In step S101 shown in Fig. 3, the control unit 123 determines whether the air conditioner is in cooling operation. If the air conditioner is in cooling operation, the control unit 123 proceeds to step S102. On the other hand, if the air conditioner is not in cooling operation, the control unit 123 proceeds to step S201 in Fig. 4.

[0038] In step S102, the control unit 123 starts sprinkling by the first sprinkler unit 121. Specifically, the control unit 123 controls the first solenoid valve 121a to sprinkle the treated water from the first nozzle 121b. As a result, the mist of the treated water atomized by the first nozzle 121b is sprinkled onto the outdoor unit 6.

[0039] By spraying the treated water atomized by the first nozzle 121b onto the outdoor unit 6 in this way, the outdoor unit 6 can be cooled by the heat of vaporization of the treated water, improving the operating efficiency of the air conditioner performing cooling operation and ultimately saving energy. In addition, impurities (particles) in the treated water treated by the water treatment device 110 are less likely to adhere to the outdoor unit 6, so the formation of scale on the outdoor unit 6 can be suppressed.

[0040] After performing the process of step S102, the control unit 123 proceeds to step S103.

[0041] In step S103, the control unit 123 determines whether the air conditioner has stopped. If the air conditioner has stopped, the control unit 123 proceeds to step S104. On the other hand, if the air conditioner has not stopped, the control unit 123 performs the process of step S103 again.

[0042] In step S104, control unit 123 stops the sprinkling of water by first sprinkler unit 121. Specifically, control unit 123 controls first electromagnetic valve 121a to stop the sprinkling of treated water from first nozzle 121b.

[0043] Furthermore, the control unit 123 starts sprinkling water by the second sprinkler unit 122. Specifically, the control unit 123 controls the second solenoid valve 122a to sprinkle the treated water from the second nozzle 122b. The particle size of the treated water sprinkled from the second nozzle 122b is larger than the particle size of the treated water sprinkled from the first nozzle 121b. For this reason, when the treated water sprinkled from the second nozzle 122b adheres to the outdoor unit 6, it forms large droplets and tends to flow off, and by continuing to sprinkle water from the second nozzle 122b, the surface of the outdoor unit 6 can be washed away.

[0044] In this way, by spraying treated water with large particle sizes using the second sprinkler section 122, it is possible to wash away water droplets that have adhered to the outdoor unit 6. This makes it possible to prevent particles contained in the treated water from forming scale on the outdoor unit 6.

[0045] After performing the process of step S104, the control unit 123 proceeds to step S105.

[0046] In step S105, the control unit 123 determines whether a predetermined time has elapsed since the second watering unit 122 started sprinkling water. Any time can be set as the predetermined time. If the control unit 123 determines that the predetermined time has elapsed, the control unit 123 proceeds to step S106. On the other hand, if the control unit 123 determines that the predetermined time has not elapsed, the control unit 123 performs the processing of step S105 again.

[0047] In step S106, the control unit 123 stops the sprinkling of water by the second sprinkler unit 122. Specifically, the control unit 123 controls the second electromagnetic valve 122a to stop the sprinkling of the treated water from the second nozzle 122b.

[0048] 4, the control unit 123 determines whether the air conditioner is in heating operation. If the air conditioner is in heating operation, the control unit 123 proceeds to step S202. On the other hand, if the air conditioner is not in heating operation, the control unit 123 ends this control flow.

[0049] In step S202, the control unit 123 starts sprinkling by the second sprinkler unit 122. Specifically, the control unit 123 controls the second solenoid valve 122a to sprinkle the treated water from the second nozzle 122b. As a result, the treated water in the form of a mist having relatively large particle sizes is sprinkled onto the outdoor unit 6.

[0050] By spraying treated water from the second nozzle 122b onto the outdoor unit 6 in this way, the heat of the treated water can be imparted to the outdoor unit 6. Specifically, when the air conditioner is in heating operation, the outside air temperature is low and the outdoor unit 6 is also considered to be cold. Therefore, by spraying treated water from the second sprinkler section 122 onto the outdoor unit 6, the heat of the treated water can be imparted to the outdoor unit 6 (warming the outdoor unit 6), improving the operating efficiency of the air conditioner in heating operation and ultimately achieving energy savings. Furthermore, impurities (particles) in the treated water treated by the water treatment device 110 are less likely to adhere to the outdoor unit 6, so the formation of scale on the outdoor unit 6 can be suppressed.

[0051] Furthermore, when the air conditioner is in heating operation, the second sprinkler section 122 sprinkles treated water with large particle sizes, making it easier for the treated water sprinkled on the outdoor unit 6 to flow down. In other words, the sprinkled treated water is less likely to adhere to the outdoor unit 6. This makes it possible to prevent the outdoor unit 6 from being unintentionally cooled by the latent heat of vaporization of the treated water.

[0052] After performing the process of step S202, the control unit 123 proceeds to step S203.

[0053] In step S203, the control unit 123 determines whether the air conditioner has stopped. If the air conditioner has stopped, the control unit 123 proceeds to step S204. On the other hand, if the air conditioner has not stopped, the control unit 123 performs the process of step S203 again.

[0054] In step S204, the control unit 123 stops the sprinkling of water by the second sprinkler unit 122. Specifically, the control unit 123 controls the second electromagnetic valve 122a to stop the sprinkling of the treated water from the second nozzle 122b.

[0055] In this way, in the sprinkler system 100 of this embodiment, by sprinkling treated water onto the outdoor unit 6, the operating efficiency of the air conditioner can be improved, and ultimately energy savings can be achieved. Specifically, when the air conditioner is operating in cooling mode, the outdoor unit 6 can be cooled by sprinkling water from the first sprinkler unit 121, thereby improving the efficiency of the air conditioner (see FIG. 3). Also, when the air conditioner is operating in heating mode, the outdoor unit 6 can be warmed by sprinkling water from the second sprinkler unit 122, thereby improving the efficiency of the air conditioner (see FIG. 4).

[0056] As described above, the watering system 100 according to this embodiment has the following features: a water treatment device 110 that changes the surface potential of particles present in water to neutral or negative; a sprinkler device 120 that sprinkles the water treated by the water treatment device 110 onto an outdoor unit 6 of an air conditioner; It is equipped with the following. This configuration can reduce the cost of the sprinkler system 100. That is, compared to other sprinkler systems (for example, sprinkler systems using RO treatment devices), the initial cost and running cost can be reduced.

[0057] In addition, the water treatment device 110 Among the pipes that guide water to the multiple dwelling units of the apartment building H, it is arranged upstream of the branch point P that branches off to each of the multiple dwelling units, The sprinkler device 120 is It is provided in the outdoor unit 6 installed in the dwelling unit. With this configuration, the water treatment device 110 can be shared by multiple dwelling units, and the burden of the initial cost and running costs of the water treatment device 110 can be shared and reduced. In particular, in this embodiment, the burden of the running costs of the water treatment device 110 is not shared according to the amount of treated water used by each dwelling unit, so there is no need to install a water meter to measure the amount of treated water used in each dwelling unit, and costs can be reduced.

[0058] In addition, the sprinkler device 120 is A first sprinkler unit 121 that sprinkles mist water onto the outdoor unit 6; A second sprinkler unit 122 that sprinkles water having a particle size larger than that of the water sprinkled by the first sprinkler unit 121 onto the outdoor unit 6; It is equipped with the following. By configuring in this way, water of different particle sizes can be used selectively, improving convenience.

[0059] The apparatus further includes a control unit 123 for controlling the operation of the first sprinkler unit 121 and the second sprinkler unit 122, The control unit 123 After the first sprinkling unit 121 has performed sprinkling, a first control (see FIG. 3) can be executed in which the second sprinkling unit 122 performs sprinkling. By configuring it in this manner, the treated water that has adhered to the outdoor unit 6 by spraying from the first spray section 121 can be washed away by spraying from the second spray section 122, thereby reducing the amount of water droplets that adhere to the outdoor unit 6 and suppressing the formation of scale.

[0060] In addition, the control unit 123 A second control (see FIG. 4) can be executed in which water is only sprinkled by the second sprinkler unit 122 without sprinkling water by the first sprinkler unit 121. This configuration makes it difficult for the sprayed treated water to adhere to the outdoor unit 6. This makes it possible to prevent the outdoor unit 6 from being unintentionally cooled by the heat of vaporization of the treated water adhering to the outdoor unit 6.

[0061] In addition, the control unit 123 The first control (see FIG. 3) can be executed when the air conditioner is in cooling operation, The second control (see FIG. 4) can be executed when the air conditioner is in heating operation. This configuration effectively saves energy in the air conditioner. That is, when the air conditioner is in cooling operation, small-particle water is sprayed to cool the outdoor unit 6. When the air conditioner is in heating operation, large-particle water is sprayed to warm the outdoor unit 6 while preventing it from being unintentionally cooled by the latent heat of vaporization.

[0062] Although one embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0063] For example, the sprinkler system 100 according to this embodiment is intended for use in an apartment building or other housing complex H, but the present invention is not limited to this and can be used in various facilities such as commercial facilities, public facilities, etc. Furthermore, the system can be used not only in apartment buildings H but also in detached houses and the like.

[0064] In addition, in this embodiment, an example has been shown in which the water treatment device 110 is installed between the water tank 2 and the branch point P, but the present invention is not limited to this and the water treatment device 110 can be installed at any position. However, if the water treatment device 110 is shared by each dwelling unit of the apartment building H, it must be installed upstream of the branch point P to each dwelling unit.

[0065] Furthermore, the arrangement of the sprinkler device 120 illustrated in this embodiment is just an example, and the sprinkler device 120 can be arranged in any position where it can sprinkle water onto the outdoor unit 6.

[0066] Furthermore, sprinkler device 120 of this embodiment is capable of sprinkling water with two types of particle size using first sprinkler unit 121 and second sprinkler unit 122, but the types of particle size are not limited to this. For example, sprinkler device 120 can be configured to sprinkle water with only one type of particle size, or to sprinkle water with three or more types of particle size.

[0067] Furthermore, in this embodiment, the second sprinkler section 122 sprinkles treated water in the form of atomized mist, similar to the first sprinkler section 121, but the form of treated water sprinkled from the second sprinkler section 122 is not limited to this, and it is also possible to spray liquid treated water onto the outdoor unit 6, for example, from the perspective of rinsing the outdoor unit 6.

[0068] In addition, in this embodiment, an example has been shown in which sprinkler device 120 is equipped with two sprinkler units (first sprinkler unit 121 and second sprinkler unit 122), but the number of sprinkler units is not limited to this. For example, sprinkler device 120 may be one that sprinkles water using only one sprinkler unit, or three or more sprinkler units.

[0069] In addition, in this embodiment, an example is shown in which a control unit 123 is provided that automatically controls the operation of the first sprinkler unit 121 and the second sprinkler unit 122, but it is also possible to configure the first sprinkler unit 121 and the second sprinkler unit 122 to be operated by manual operation, for example.

[0070] Furthermore, the control flow illustrated in this embodiment (see FIGS. 3 and 4) is an example, and the control processing contents can be changed as appropriate.

[0071] For example, in the present embodiment, an example has been shown in which the operation of first sprinkler unit 121 and second sprinkler unit 122 is controlled based on the operating state of the air conditioner (cooling operation or heating operation), but it is also possible to control first sprinkler unit 121, etc., based on the operation of outdoor unit 6. As an example, it is also possible to start sprinkling water by first sprinkler unit 121 when outdoor unit 6 starts operating, and stop sprinkling water by first sprinkler unit 121 when outdoor unit 6 stops operating.

[0072] In addition, in this embodiment, an example is shown in which the control of Figure 3 (first control) and the control of Figure 4 (second control) are used depending on the operating state of the air conditioner (cooling operation or heating operation), but it is also possible to execute the same control (for example, first control) regardless of the operating state of the air conditioner.

[0073] Furthermore, the timing of starting and stopping sprinkling by first sprinkler unit 121 and second sprinkler unit 122 is not limited to that exemplified in this embodiment and can be changed as desired. It is desirable that the timing of starting and stopping sprinkling by first sprinkler unit 121 and second sprinkler unit 122 be set appropriately from the perspective of saving energy in the air conditioner and preventing scale buildup on outdoor unit 6.

[0074] In addition, in this embodiment, an example is shown in which the sprinkling operation by the first sprinkling unit 121 and the second sprinkling unit 122 is controlled based on the operation of the air conditioning device, but the present invention is not limited to this, and it is possible to control the first sprinkling unit 121 and the second sprinkling unit 122 based on various other information.

[0075] For example, in the control flow of Figure 3, it is also possible to detect the temperature of outdoor unit 6 using a sensor or the like, and start sprinkling water by first sprinkler unit 121 when outdoor unit 6 reaches a predetermined temperature or higher (step S102). It is also possible to compare the temperature of the treated water supplied to first sprinkler unit 121 with the temperature of outdoor unit 6, and start sprinkling water by first sprinkler unit 121 (step S102) only when the temperature of the treated water is lower. It is also possible to stop sprinkling water by second sprinkler unit 122 when the amount of water sprinkled by second sprinkler unit 122 (amount of water sprinkled) reaches a predetermined amount (step S106).

[0076] 4, for example, it is also possible to detect the temperature of the outdoor unit 6 by a sensor or the like, and start sprinkling water by the second sprinkler unit 122 when the outdoor unit 6 falls below a predetermined temperature (step S202).It is also possible to compare the temperature of the treated water supplied to the second sprinkler unit 122 with that of the outdoor unit 6, and start sprinkling water by the second sprinkler unit 122 (step S202) only when the temperature of the treated water is higher.

[0077] Furthermore, when the second control (see FIG. 4) is performed, it is also possible to configure the second sprinkler unit 122 to sprinkle treated water heated by surplus exhaust heat from an ENE-FARM installed in the apartment building H or solar heat. This makes it possible to more effectively heat the outdoor unit 6. It is also possible to configure the second sprinkler unit 122 to directly sprinkle hot water produced by an ENE-FARM or the like, instead of heated treated water. [Explanation of symbols]

[0078] 100 Watering System 110 Water treatment equipment 120 Sprinkler System 121 First Watering Section 122 Second Sprinkler Section 123 Control Unit

Claims

1. a water treatment device that changes the surface potential of particles present in water to neutral or negative; a sprinkler device that sprinkles the water treated by the water treatment device onto an outdoor unit of an air conditioner; a control unit configured to be able to acquire the operating state of the air conditioner and the temperature of the outdoor unit; Equipped with The sprinkler device is a first sprinkler unit that sprinkles mist-like water onto the outdoor unit; A second sprinkler unit that sprinkles water having particle sizes larger than the particle sizes of water sprinkled by the first sprinkler unit to the outdoor unit; Equipped with The control unit Controlling the operation of the first sprinkler unit and the second sprinkler unit; In a first control executed when the air conditioner is in cooling operation, when the temperature of the outdoor unit becomes equal to or higher than a predetermined temperature, the first sprinkler unit sprinkles water, In the second control executed when the air conditioner is in heating operation, when the temperature of the outdoor unit becomes lower than a predetermined temperature, water is sprinkled by the second sprinkler unit. Watering system.

2. The water treatment device comprises: The water supply system is arranged upstream of the branch points of the pipes that lead water to the multiple dwelling units of the apartment building, and The sprinkler device is The outdoor unit is provided in the dwelling unit. The watering system of claim 1 .

3. The control unit In the first control, After the first sprinkler unit sprinkles water, the second sprinkler unit sprinkles water. The watering system according to claim 1 or 2.

4. The control unit In the second control, Only sprinkling water by the second sprinkling unit is performed without sprinkling water by the first sprinkling unit. A watering system according to any one of claims 1 to 3.

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