JP2009285293A - Sterilizing system and air-conditioning sterilizing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sterilizing system for sterilizing air to be supplied to a large space with a simple configuration, and to provide an air-conditioning sterilizing system. <P>SOLUTION: The sterilizing system includes: an air-conditioning apparatus which is connected to a plurality of blow ports opened toward the large space via an air supply duct, so as to supply the conditioned air to the respective blow ports via the air supply duct; a sterilizing chamber 120 arranged in a blow passage from the air-conditioning apparatus to the plurality of blow ports; an air-sterilizing part 4 arranged in the sterilizing chamber, having a plurality of vapor-liquid contact members 41A1, A2 to 41F1, F2 for sterilizing the conditioned air by allowing the conditioned air to have contact with electrolyzed water; a water storage tank 51 to be connected via a water pump 53 to an electrolytic water supply pipe 56 for supplying the electrolytic water to the respective vapor-liquid contact members; an electrolytic unit 52 for producing the electrolytic water; and a mechanism for introducing to the electrolytic unit a part of the electrolytic water inside the water storage tank, which is pumped by the water pump and supplied to the plurality of vapor-liquid contact members via the electrolytic water supply pipe, producing the electrolytic water in the electrolytic unit, and returning the water to the water storage tank. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sterilization system and an air-conditioning sterilization system for sterilizing air supplied to a large space.

2. Description of the Related Art Conventionally, a rooftop type air conditioner is known that is arranged on the roof of a building and connected to a plurality of outlets opened in a large space in the building via an air supply duct (for example, Patent Documents). 1). This type of air conditioner is integrally provided with a heat source side unit having a compressor and a heat source side heat exchanger, and a use side unit having a blower and a use side heat exchanger, and heat is exchanged by the use side unit. Air is supplied to each outlet through the air supply duct.
JP 2000-74414 A

By the way, a rooftop type air conditioner is installed in a large space facility where an unspecified number of people stay for a long time, such as a theater, a movie theater, a hospital, or a shopping center. It is desired to supply (sanitized) air.
However, since a large amount of air is supplied to each outlet through the air supply duct, it is difficult to sterilize a large amount of air supplied to the large space through these outlets.

  Accordingly, an object of the present invention is to provide a sterilization system and an air-conditioning sterilization system that can sterilize air supplied to a large space with a simple configuration.

In order to solve the above problems, the present invention provides a chamber connected to a plurality of outlets opened in one large space via an air supply duct, and brings the air and electrolyzed water into contact with each other in the chamber. An air sterilization unit having a plurality of gas-liquid contact members for sterilizing air is provided, and is connected to a supply pipe for supplying the electrolyzed water to each gas-liquid contact member of the air sterilization unit via a water pump. A water tank and an electrolysis unit for generating the electrolyzed water are provided, and a part of the electrolyzed water in the water tank that is pumped out by the water pump and supplied to a plurality of gas-liquid contact members via the supply pipe is The electrolysis unit is provided with a mechanism for generating electrolyzed water in the electrolysis unit and returning it to the water tank.
According to this configuration, the chamber connected to the plurality of outlets opened in the large space via the air supply duct is provided, and a plurality of sterilizing the air by bringing the air and the electrolytic water into contact with each other in the chamber Since the air sterilization unit having the gas-liquid contact member is provided, air sterilized by each gas-liquid contact member of the air sterilization unit is supplied to the outlet through the air supply duct, and the sterilized air Can be widely distributed in the large space through the outlet, and the air supplied to the large space can be sterilized with a simple configuration. In addition, since the air sterilization unit is concentrated in the chamber, the gas-liquid contact member of the air sterilization unit can be easily maintained.
In addition, a water tank connected to each gas-liquid contact member of the air sterilization unit via a water pump is provided to a supply pipe that supplies the electrolyzed water, and an electrolysis unit that generates electrolyzed water is provided. A part of the electrolyzed water in the water tank pumped out and supplied to the plurality of gas-liquid contact members via the supply pipe is guided to the electrolysis unit, and electrolyzed water is generated by the electrolysis unit and returned to the water tank. Since the mechanism is provided, the variation width of the electrolyzed water concentration in the water tank can be kept small, and the electrolyzed water having a stable concentration can be supplied to each gas-liquid contact member of the air sterilization unit. For this reason, since the sterilization of air in each gas-liquid contact member can be performed stably, a large amount of air supplied to the large space through the outlet can be sterilized uniformly.

  In this configuration, a plurality of gas-liquid contact members may be arranged so as to cover substantially the entire surface of the air passage in the chamber. According to this configuration, since the air passing through the air passage in the chamber is uniformly sterilized by the plurality of gas-liquid contact members arranged so as to cover substantially the entire surface of the air passage, a large space is formed through the outlet. The large amount of conditioned air supplied to the can be uniformly sterilized.

  Also, the gas-liquid contact members are arranged vertically, and the gas-liquid contact member that covers the lower region of the air passage is shifted to the upstream side of the air passage from the gas-liquid contact member that covers the upper region. good. Also, the gas-liquid contact members are arranged vertically, and the gas-liquid contact member that covers the lower region of the air passage is shifted to the upstream side of the air passage from the gas-liquid contact member that covers the upper region. good. According to these configurations, a plurality of gas-liquid contact members having a total area larger than the opening area of the air passage can be arranged in a uniform manner in the air passage, and sterilization of the gas-liquid contact members arranged in the air passage Capability can be improved.

  Further, the present invention is provided with an air conditioner that is connected to a plurality of outlets opened in one large space via an air supply duct and supplies conditioned air to each outlet via the air supply duct, An air sterilization unit having a plurality of gas-liquid contact members that are provided with a chamber in an air passage from the air conditioner toward a plurality of outlets and sterilize the conditioned air by bringing the conditioned air and electrolytic water into contact with each other in the chamber Providing a water tank connected to each gas-liquid contact member of the air sterilization unit through a water supply pump to a supply pipe for supplying the electrolyzed water, and an electrolysis unit for generating the electrolyzed water, Part of the electrolyzed water in the water tank pumped out by the water pump and supplied to the plurality of gas-liquid contact members via the supply pipe is led to the electrolysis unit, and electrolyzed water is generated by the electrolysis unit to produce the water tank. With a mechanism to return And butterflies.

  In this configuration, an electrolysis unit that generates the electrolyzed water may be directly attached to the water tank, and scales generated by the electrolysis unit may be returned to the water tank together with the electrolyzed water. According to this configuration, the scales generated in the electrolysis unit at the time of electrolysis are returned to the water tank together with the electrolyzed water and accumulated in the water tank. It is prevented from flowing into the liquid contact member. This prevents the supply pipes from being blocked due to the inflow of scales and clogging of each gas-liquid contact member, thereby reducing the maintenance frequency of these supply pipes and gas-liquid contact members, and reducing maintenance work. Can be planned.

  The air conditioner is divided into a housing, a heat exchange chamber containing a heat exchanger and a blower is provided in one room, a machine room containing a compressor is provided in another room, and a separate room is provided. The chamber may be provided, and the conditioned air may be circulated through the chamber. According to this configuration, since the air sterilization unit can be easily arranged in the chamber formed in the casing of the air conditioner, the device can be supplied to a large space with a simple configuration without increasing the size of the device. A large amount of conditioned air can be sterilized.

  In addition, an air supply duct may be connected to the chamber, and a plurality of gas-liquid contact members may be arranged so as to cover substantially the entire air passage in the chamber toward the air supply duct.

  Also, the gas-liquid contact members are arranged vertically, and the gas-liquid contact member that covers the lower region of the air passage is shifted to the upstream side of the air passage from the gas-liquid contact member that covers the upper region. good. Further, the gas-liquid contact members are arranged vertically, and the gas-liquid contact member that covers the lower region of the air passage is shifted to the downstream side of the air passage from the gas-liquid contact member that covers the upper region. good.

  According to the present invention, a large amount of conditioned air supplied to a large space through the outlet can be sterilized with a simple configuration.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic diagram showing a movie theater 100 as a large space facility in which a rooftop type air conditioner (hereinafter referred to as an air conditioner) 110 is arranged.
As shown in FIG. 1, a movie theater 100 is provided with a screen 101 in the front, and a passenger seat 102 is provided in a staircase form behind the screen 101. On the other hand, the ceiling part 103 of the movie theater 100 is provided with a plurality of outlets 104 for blowing conditioned air supplied from the air conditioner 110 into the hall. These outlets 104 are connected to a supply port 111 of the air conditioner 110 through an air supply duct 105.
Further, the floor portion 106 of the movie theater 100 is provided with a suction port 107 for sucking in the air (inside air) in the vicinity of the floor portion 106. The suction port 107 is provided on the back side of the screen 101, and is connected to the inside air introduction port 112 of the air conditioner 110 via an intake duct 108 that extends upward in the back space of the screen 101. The air conditioner 110 is formed with an outside air inlet 113 for introducing outdoor air (outside air) into the air conditioner 110.
Air (inside air) in the movie theater 100 is sucked from the suction port 107 as shown by an arrow X, and is guided into the air conditioner 110 through the intake duct 108 and the inside air introduction port 112. Here, since the outside air is guided into the air conditioner 110 through the outside air introduction port 113, the outside air and the inside air are mixed in the air conditioner 110. The mixed air is heat-exchanged by a use-side heat exchanger (described later) provided in the air conditioner 110, and then is conditioned air from the outlet 104 through the supply port 111 and the air supply duct 105 in the movie theater 100. To be supplied.

The air conditioner 110 is disposed on the roof of a structure (building) 200 having a large space facility where an unspecified number of people stay for a long time, such as a movie theater, a theater, a hospital, or a shopping center. As shown in FIG. 2, the heat source side unit 1 and the use side unit 2 are integrally provided in one housing 114.
Specifically, as shown in FIG. 3, the inside of the housing 114 is partitioned by a partition plate 115, the heat source unit 1 is disposed in one chamber (machine chamber) 116, and is used for the other chamber 117. A side unit 2 is arranged. The heat source side unit 1 and the use side unit 2 are connected by a refrigerant pipe 10 to form a refrigerant circuit.
As shown in FIG. 2, the heat source side unit 1 includes a compressor 11 provided in the refrigerant pipe 10. An accumulator 12 is connected to the suction side of the compressor 11, and a four-way valve 13 is connected to the discharge side of the compressor 11. The heat source side heat exchanger 14 and the electric expansion valve 15 are connected in order. Further, the heat source side unit 1 is provided with a heat source side blower 16 that blows air toward the heat source side heat exchanger 14.
On the other hand, the use side unit 2 includes a use side heat exchanger 21 connected to the electric expansion valve 15 via the refrigerant pipe 10 and a use side blower 22 that blows air toward the use side heat exchanger 21. The use side heat exchanger 21 is connected to the four-way valve 13 via the refrigerant pipe 10.

During the cooling operation, the four-way valve 13 is switched so that the refrigerant flows in the direction of the solid line arrow shown in FIG. The high-pressure refrigerant discharged from the compressor 11 reaches the heat source side heat exchanger 14 via the accumulator 12, is condensed in the heat source side heat exchanger 14, and is sent to the electric expansion valve 15. The high-pressure refrigerant expands at the electric expansion valve 15 and flows into the use side heat exchanger 21, and evaporates in the use side heat exchanger 21, thereby cooling the air introduced into the use side unit 2. The refrigerant evaporated in the use side heat exchanger 21 returns to the suction side of the compressor 11.
Further, during the heating operation, the four-way valve 13 is switched so that the refrigerant flows in the direction of the dashed arrow shown in the drawing. The high-pressure refrigerant discharged from the compressor 11 is sent to the use side heat exchanger 21, and is condensed in the use side heat exchanger 21 to heat the air introduced into the use side unit 2. The refrigerant condensed in the use side heat exchanger 21 expands in the electric expansion valve 15 and flows into the heat source side heat exchanger 14, evaporates in the heat source side heat exchanger 14, and then accumulates in the accumulator 12 through the four-way valve 13. To return to the suction side of the compressor 11.

In the present embodiment, the air conditioner 110 is sterilized by sterilizing the conditioned air cooled or heated by the use side heat exchanger 21 in the movie theater 100 as a large space facility by the operation of the use side blower 22. A unit 150 is provided. In this embodiment, an air conditioner sterilization system is configured by including the air conditioner 110 and the sterilization unit 150 provided in the air conditioner 110.
As shown in FIG. 2, the sterilization unit 150 includes an air sterilization unit 4 that performs sterilization of air by bringing electrolyzed water containing active oxygen species into contact with the air introduced into the use-side unit 2, and predetermined ions. An electrolyzed water circulation supply unit 5 that electrolyzes water containing seeds to generate electrolyzed water containing active oxygen species and circulates the electrolyzed water to the air sterilization unit 4 is provided.
More specifically, as shown in FIG. 3, the other chamber 117 in which the use side unit 2 is provided is further divided into a heat exchange chamber 119 and a sterilization chamber 120 as a chamber by a partition plate 118. In the heat exchange chamber 119, the above-described inside air introduction port 112 and outside air introduction port 113 are formed, and the use side heat exchanger 21 is arranged in a bracing manner downstream of the inside air introduction port 112 and the outside air introduction port 113. Yes. In addition, the partition plate 118 is formed with an opening 118A that allows the heat exchange chamber 119 and the sterilization chamber 120 to communicate with each other, and the use-side fan 22 is attached to the opening 118A. By operating the use side blower 22, the air in the heat exchange chamber 119 is blown into the sterilization chamber 120. In the sterilization chamber 120, the air sterilization unit 4 is disposed on the downstream side of the use-side fan 22, and the supply port 111 is formed on the downstream side of the air sterilization unit 4. Thereby, when the air introduced into the use side unit 2 passes through the sterilization chamber 120, it is sterilized by contacting the electrolyzed water in the air sterilization unit 4 disposed in the sterilization chamber 120, The sterilized air is circulated and supplied from the outlet 104 into the movie theater 100 through the supply port 111 and the air supply duct 105.

Next, each configuration of the sterilization unit 150 will be described.
As shown in FIG. 4, the sterilization unit 150 includes an air sterilization unit 4 disposed in the sterilization chamber 120 and an electrolyzed water circulation supply unit 5 disposed adjacent to the sterilization chamber 120.
The air sterilization unit 4 includes a plurality (12 in this embodiment) of gas-liquid contact members 41A1, A2 to 41F1, and F2 arranged to cover almost the entire surface of the air passage in the sterilization chamber 120. In the embodiment, a pair of gas-liquid contact members (for example, the gas-liquid contact members 41A1 and 41A2) arranged side by side across the entire width of the air passage 120A of the sterilization chamber 120 are arranged in the height direction of the sterilization chamber 120. A plurality of stages (for example, six stages) are arranged side by side.

The gas-liquid contact members 41A1 to 41F2 are members for bringing the electrolyzed water into contact with the air passing through the air passage 120A, and the air flowing through the air passage 120A in these gas-liquid contact members 41A1 to 41F2 generates a predetermined active oxygen species. By contacting with the electrolyzed water, the virus contained in the air is inactivated and the air is sterilized.
The gas-liquid contact members 41A1 to 41F2 are filter members having a three-dimensional structure similar to a honeycomb structure, and have a structure in which an element portion in contact with a gas is supported by a frame. Although not shown, the element portion is formed by laminating a corrugated plate member and a flat plate member, and a plurality of substantially triangular openings are provided between the corrugated plate member and the flat plate member. Is formed. Accordingly, a wide gas contact area when air is allowed to pass through the element portion, electrolytic water can be dripped, and the structure is less likely to be clogged.
The element part is made of a material that is hardly deteriorated by electrolyzed water, for example, polyolefin resin (polyethylene resin, polypropylene resin, etc.), PET (polyethylene terephthalate) resin, vinyl chloride resin, fluorine resin (PTFE, PFA, ETFE, etc.) Alternatively, a material such as a ceramic material is used, and in this configuration, a PET resin is used. In addition, the element portion is subjected to a hydrophilic treatment, and the affinity for the electrolyzed water is enhanced, whereby the water retention (wetability) of the electrolyzed water of the gas-liquid contact members 41A1 to 41F2 is maintained, which will be described later. Contact between the reactive oxygen species (active oxygen substance) and air is sustained for a long time.

  The number of gas-liquid contact members is determined according to the amount of air that passes through the sterilization chamber 120. In this embodiment, the amount of air that passes through the air passage 120A of the sterilization chamber 120 and the amount per one sheet are determined. The number of gas-liquid contact members calculated from the sterilization capability (gas contact area) of the gas-liquid contact member and capable of sufficiently sterilizing the air is arranged in the sterilization chamber 120. A drain pan 44 that receives water discharged from the gas-liquid contact members 41A1 to 41F2 is disposed below the gas-liquid contact members 41A1 to 41F2.

As shown in FIG. 5, sprinkling boxes 42A1 and 42A2 for uniformly dispersing electrolytic water in the gas-liquid contact members 41A1 and 41A2 are assembled to the upper portions of the gas-liquid contact members 41A1 and 41A2. The watering boxes 42A1 and 42A2 include a tray member that temporarily stores electrolyzed water. A plurality of watering holes (not shown) are opened on the side surfaces of the tray member, and the gas-liquid contact members 41A1 and 41A2 are formed from the watering holes. Electrolytic water is dripped with respect to.
In addition, on the upper surfaces of the gas-liquid contact members 41A1 and 41A2, a flow dividing sheet (not shown) is disposed in order to efficiently disperse the electrolyzed water dropped from the watering boxes 42A1 and 42A2 in the element portion. This diversion sheet is a sheet (woven fabric, non-woven fabric, etc.) made of a fiber material having liquid permeability, and one or more are provided along the cross section in the thickness direction of the gas-liquid contact members 41A1, 41A2.
Further, an electrolyzed water tray 43A for receiving water flowing down from the gas-liquid contact members 41A1 and 41A2 is attached to the lower part of the gas-liquid contact members 41A1 and 41A2. A drain hose 45A that guides the water received by the electrolyzed water tray 43A to the drain pan 44 (FIG. 4) is attached to the bottom surface of the electrolyzed water tray 43A. Since the gas-liquid contact members arranged in each stage have substantially the same configuration, the configuration of the uppermost gas-liquid contact members 41A1 and 41A2 will be described, and the gas-liquid contact member 41B1 positioned below this will be described. About 41B2-41F1, F2, the same kind of code is given and explanation is omitted.

Next, the arrangement configuration of the gas-liquid contact members 41A1, A2-41F1, and F2 will be described. As shown in FIG. 6, the gas-liquid contact members 41A1, A2 to 41F1, F2 are arranged side by side, and cover the lower region A of the air passage 120A (for example, the gas-liquid contact members 41F1, F2). Are sequentially shifted from the gas-liquid contact member (for example, gas-liquid contact members 41A1 and A2) covering the upper region B to the upstream side of the air passage 120A. Further, in the present embodiment, the gas-liquid contact members that are vertically adjacent to each other are arranged so as to overlap each other in a side view, and the gas-liquid contact members (for example, the gas-liquid contact members 41A1 and A2) positioned above are disposed. Between the lower end part and the upper end part of the gas-liquid contact member (for example, gas-liquid contact member 41B1, B2) located in the immediate lower part is obstruct | occluded by the baffle plates 47A-47E, respectively.
According to this configuration, the plurality of gas-liquid contact members 41A1, A2 to 41F1, F2 having a total area larger than the area of the air passage 120A can be arranged in the air passage 120A and arranged in the air passage 120A. Further, the sterilization ability of the gas-liquid contact members 41A1, A2-41F1, F2 can be improved. Furthermore, since the space between the lower end of the gas-liquid contact member located above and the upper end of the gas-liquid contact member located immediately below is closed by the air guide plate, the gas-liquid contact members 41A1, A2 It is possible to prevent the air from flowing into the air passage 120A without passing through 41F1 and F2.

  As shown in FIG. 4, the electrolyzed water circulation supply unit 5 includes a water storage tank 51 (water tank), an electrolysis unit 52 that electrolyzes water in the water storage tank 51 to generate electrolyzed water, An electrolyzed water supply pipe (supply pipe) 56 for supplying electrolyzed water to each of the gas-liquid contact members 41A1, A2-41F1, F2 of the air sterilization unit 4 and the electrolyzed water supply pipe 56 are provided. A water supply pump 53, a branch pipe 54 branched from the electrolyzed water supply pipe 56 on the downstream side of the water pump 53 and connected to the electrolysis unit 52, and a circulation path for guiding the water flowing down to the drain pan 44 to the water storage tank 51 55 and a control unit 65 for controlling operations of the electrolysis unit 52, the water pump 53, and the like.

A water supply pipe 57 for supplying city water (tap water) or the like to the water storage tank 51 and a water supply valve 58 are connected to the water storage tank 51. The water supply valve 58 is a float switch FS provided in the water storage tank 51. In accordance with the operation, the control unit 65 performs opening / closing control. Here, the water supply source connected to the water supply pipe 57 and supplying water to the water storage tank 51 may be either city water (tap water) or water stored in a water supply tank. The water stored in the water tank or the like may be water that contains ion species such as chloride ions in advance, such as tap water, or a dilute concentration of chloride ions such as well water. When water is used, the water may be adjusted to tap water by adding chloride ions to the water. In the present embodiment, these are collectively referred to as water.
In this configuration, even when dilute water having a chloride ion concentration such as well water is used for the water storage tank 51, in order to add chloride ions to this water, it is adjusted to a predetermined concentration in advance. A salt water tank 59 is provided, and a salt water supply pipe 60 connected to the salt water tank 59 is connected to the water storage tank 51 via a supply pump 61 and a check valve 62. The supply pump 61 is configured to operate under the control of the control unit 65 based on the conductivity detected by the electrolysis unit 52, for example.

  In the present embodiment, the electrolyzed water supply pipe 56 connected to the connection port 51B of the water storage tank 51 is branched into six electrolyzed water supply pipes 56A to 56F, respectively, as shown in FIG. The electrolyzed water sent from is divided into the electrolyzed water supply pipes 56A to 56F substantially evenly. Further, for example, as shown in FIG. 5, the electrolyzed water supply pipe 56A is branched into two branch pipes 56A1 and 56A2 at the downstream end, and these branch pipes 56A1 and 56A2 are gas-liquid contact members 41A1 and 41A2, respectively. The sprayed water is supplied to the gas-liquid contact members 41A1 and 41A2 through the watering boxes 42A1 and 42A2. Since the other electrolyzed water supply pipes 56B to 56F have the same configuration, the description thereof is omitted here.

As shown in FIG. 4, the electrolysis unit 52 is fixedly arranged on the side surface of the water storage tank 51. Specifically, the electrolysis unit 52 includes a bottomed cylindrical case body 71 and at least a pair of electrodes 72 and 73 housed in the case body 71, and a voltage is applied between the electrodes 72 and 73. By doing so, water is electrolyzed to generate electrolyzed water containing active oxygen species.
Here, the reactive oxygen species are oxygen molecules having an oxidation activity higher than that of normal oxygen and related substances, and so-called narrow definition such as superoxide anion, singlet oxygen, hydroxyl radical, or hydrogen peroxide. These active oxygens include so-called broad active oxygens such as ozone and hypohalous acid.

The electrodes 72 and 73 are, for example, two electrode plates having a base made of titanium (Ti) and a coating layer made of iridium (Ir) and platinum (Pt).
When a voltage is applied between the electrodes 72 and 73, the cathode electrode (cathode) reacts as shown in the following formula (1).
2H ₂ O + 2e ⁻ → H ₂ + 2OH ⁻ (1)
The anode electrode (anode) reacts as shown in the following formula (2).
2H ₂ O → O ₂ + 4H ⁺ + 4e ⁻ (2)
When the reactions at the cathode and anode electrodes are combined, water is electrolyzed as shown in the following formula (3).
2H ₂ O → 2H ₂ + O ₂ (3)
Along with this reaction, in the anode electrode, chlorine ions (chloride ions: Cl ⁻ ) contained in water react as shown in the following formula (4) to generate chlorine (Cl ₂ ).
2Cl ⁻ → Cl ₂ + 2e ⁻ (4)
Further, this chlorine reacts with water as shown in the following formula (5) to generate hypochlorous acid (HClO) and hydrogen chloride (HCl).
Cl ₂ + H ₂ O → HClO + HCl (5)

  Hypochlorous acid (active oxygen species in a broad sense) generated at the anode electrode has a strong oxidizing action and bleaching action. The aqueous solution in which hypochlorous acid is dissolved, that is, the electrolyzed water generated by the electrolysis unit 52 exhibits various air cleaning effects such as inactivation of viruses and the like, sterilization, and decomposition of organic compounds. Thus, the electrolyzed water containing hypochlorous acid flows through the electrolyzed water supply pipes 56A to 56F and is dropped onto the gas-liquid contact members 41A1, 41A2 to 41F1, and 41F2 through the watering boxes 42A1, 42A2 to 42F1, and 42F2. Then, the air blown out by the use-side blower 22 comes into contact with hypochlorous acid in the gas-liquid contact members 41A1, 41A2-41F1, 41F2. As a result, viruses or the like floating in the air are inactivated, and odorous substances contained in the air are decomposed by reacting with hypochlorous acid or ionized and dissolved. Accordingly, the air is sterilized and deodorized, and the purified air is discharged from the gas-liquid contact members 41A1, 41A2-41F1, 41F2.

  An example of influenza virus is given as an action mechanism of inactivation of viruses and the like by reactive oxygen species. The above-mentioned reactive oxygen species have the action of destroying and eliminating (removing) the surface protein (spike) of the virus essential for influenza virus infection. When this surface protein is destroyed, the influenza virus and the receptor (receptor) necessary for the infection of the influenza virus are not bound, and the infection is prevented. For this reason, the influenza virus floating in the air loses infectivity by contacting the electrolyzed water containing active oxygen species in the gas-liquid contact members 41A1, 41A2 to 41F1, and 41F2, thereby preventing infection.

  Therefore, by disposing the gas-liquid contact members 41A1, A2-41F1, F2 in the sterilization chamber 120 of the rooftop type air conditioner 110, the air passing through the sterilization chamber 120 is allowed to pass through the gas-liquid contact members 41A1, A2-. It is sterilized by 41F1 and F2, and as shown in FIG. 1, it becomes possible to widely disperse this sterilized air in the movie theater 100, and air sterilization and deodorization in a large space facility can be easily performed. It can be done efficiently.

  Here, switching of the electrodes for applying a positive potential to any side of the electrodes 72 and 73 in the electrolysis unit 52 can be performed by reversing the polarity of the electrodes. This is possible by changing (reversing) the voltage applied to the electrodes 72 and 73.

Further, the concentration of the active oxygen species in the electrolytic water is adjusted to a concentration that inactivates viruses to be sterilized under the control of the control unit 65. The concentration of the active oxygen species is adjusted by adjusting a voltage applied between the electrodes 72 and 73 and adjusting a current value flowing between the electrodes 72 and 73.
For example, when a positive potential is applied to the electrode 72 and the current value flowing between the electrodes 72 and 73 is 20 mA (milliampere) / cm ² (square centimeter), the predetermined free residual chlorine concentration (for example, 1 mg (milligram)). ) / L (liter)). Moreover, the concentration of hypochlorous acid in the electrolytic water can be adjusted to a high concentration by changing the voltage applied between the electrodes 72 and 73 and increasing the current value.

Next, the mounting structure of the electrolysis unit 52 will be described.
Further, as shown in FIG. 7, the case body 71 of the electrolysis unit 52 includes a flange 74 around the opening, and the flange 74 is connected to an opening 51 </ b> A formed on the side surface of the water storage tank 51 via a packing 75. It is fixed with bolts 76 and nuts 77.
The opening 51A is formed to have substantially the same diameter as the case body 71, and the electrodes 72 and 73 in the case body 71 can be accessed from the inside of the water storage tank 51 through the opening 51A. For this reason, even if substances contained in water adhere to the electrodes 72 and 73 as scales during electrolysis, the removal of the scales can be easily performed through the opening 51A of the water storage tank 51.

The case body 71 is provided with a connection port 78 on the bottom surface far from the flange 74, and the branch pipe 54 is connected to the connection port 78. Thus, in this configuration, the branch pipe 54 branched from the electrolyzed water supply pipe 56 on the downstream side of the water feed pump 53 and connected to the electrolysis unit 52 is provided, pumped out by the water feed pump 53, and electrolyzed water supply pipe 56. A part of the electrolyzed water in the water storage tank 51 supplied to the plurality of gas-liquid contact members 41A1, A2 to 41F1, F2 through the water is guided to the electrolysis unit 52, and the electrolysis unit 52 generates electrolyzed water to store the water storage tank. The configuration is set back to 51. For this reason, the variation width of the electrolyzed water concentration in the water storage tank 51 can be kept small, and the electrolyzed water having a stable concentration can be supplied to the gas-liquid contact members 41A1, A2-41F1, and F2. For this reason, since the sterilization of air in each gas-liquid contact member 41A1, A2-41F1, F2 can be stably performed, a large amount of air supplied into the movie theater 100 through the outlet 104 is uniformly distributed. It can be sterilized.
Further, according to this configuration, when the scales generated in the electrodes 72 and 73 are removed from the electrodes 72 and 73, the scales are returned to the water storage tank 51 together with the electrolyzed water. Therefore, the scales are prevented from flowing into the gas-liquid contact members 41A1, A2-41F1, F2 through the electrolytic water supply pipe 56. For this reason, blockage of the electrolyzed water supply pipe 56 due to the inflow of scales and clogging of the gas-liquid contact members 41A1, A2-41F1, and F2 are prevented, so that the electrolyzed water supply pipe 56 and the gas-liquid contact member Maintenance frequency of 41A1, A2-41F1, F2 is reduced, and maintenance work can be reduced.
Furthermore, in this configuration, as shown in FIG. 4, the water storage is provided between the opening 51A of the water storage tank 51 to which the electrolysis unit 52 is directly attached and the connection port 51B to which the electrolyzed water supply pipe 56 is connected. Since the scale filter 66 for partitioning the inside of the tank 51 is provided, the scales accumulated in the water storage tank 51 are not collected by the scale filter 66 and flow out of the water storage tank 51. .

  In addition, the water storage tank 51 is provided with a drain pipe 67 that can drain water by a siphon method. The drain pipe 67 includes a first vertical portion 67A that extends upward from the bottom of the water storage tank 51, a horizontal portion 67B that extends to the first vertical portion 67A and extends in a substantially horizontal direction, and a lower portion outside the tank that continues to the horizontal portion 67B. And a second vertical portion 67C extending in the direction. The horizontal portion 67B is provided at a position slightly higher than the control water level in the normal water storage tank 51. By supplying water up to this height position, the drain pipe 67 is evacuated. The water in the water storage tank 51 is discharged according to the principle. In this configuration, a drain valve is not required, so that the cost can be reduced and the drainage speed can be improved by the siphon method.

As described above, according to the present embodiment, a plurality of outlets 104 opened in the movie theater 100 as one large space are connected to the outlets 104 via the air supply duct 105. An air conditioner 110 that supplies conditioned air is provided, and a sterilization chamber 120 is provided in a ventilation path from the air conditioner 110 to the plurality of outlets 104, and the conditioned air and the electrolyzed water are brought into contact with each other in the sterilization chamber 120. The air sterilized by the gas-liquid contact members 41A1, A2-41F1, F2 is provided to provide the air sterilization unit 4 having a plurality of gas-liquid contact members 41A1, A2-41F1, F2 for sterilizing the conditioned air. Is supplied to the air outlet 104 through the air supply duct 105, and the sterilized air can be widely distributed in the movie theater 100 through the air outlet 104, and the air supplied to the movie theater 100 is supplied. It can be sterilization in a simple configuration. Further, since the gas-liquid contact members 41A1, A2-41F1, and F2 are provided in the sterilization chamber 120 in a concentrated manner, the gas-liquid contact members 41A1, A2-41F1, and F2 can be easily maintained.
Furthermore, an electrolysis unit 52 for generating electrolyzed water is provided while an electrolyzed water supply pipe 56 that supplies electrolyzed water to the gas-liquid contact members 41A1, A2 to 41F1, and F2 is provided with a water storage tank 51 connected via a water pump 53. A part of the electrolyzed water in the water storage tank 51 supplied to the plurality of gas-liquid contact members 41A1, A2-41F1, F2 through the electrolyzed water supply pipe 56 through the electrolyzed water supply pipe 56. Therefore, since the electrolysis unit 52 generates electrolyzed water and returns it to the water storage tank 51, the range of change in the electrolyzed water concentration in the water storage tank 51 can be kept small, and electrolyzed water having a stable concentration can be obtained. It can supply to each gas-liquid contact member 41A1, A2-41F1, F2. For this reason, since the sterilization of air at each of the gas-liquid contact members 41A1, A2-41F1, F2 can be stably performed, a large amount of air supplied to the movie theater 100 through the outlet 104 is uniformly removed. Can be fungus.

  Further, according to the present embodiment, the electrolysis unit 52 that generates electrolyzed water is directly attached to the water storage tank 51, and the scales generated by the electrolysis unit 52 are returned to the water storage tank 51 together with the electrolyzed water. Since the scales generated in the electrolysis unit 52 during the electrolysis are returned to the water storage tank 51 together with the electrolyzed water and are accumulated in the water storage tank 51, the scales pass through the electrolyzed water supply pipe 56 to form a gas-liquid contact member. 41A1, A2-41F1, and F2 are prevented from flowing. For this reason, blockage of the electrolyzed water supply pipe 56 due to the inflow of scales and clogging of the gas-liquid contact members 41A1, A2-41F1, and F2 are prevented, so that the electrolyzed water supply pipe 56 and the gas-liquid contact member Maintenance frequency of 41A1, A2-41F1, F2 is reduced, and the maintenance work can be reduced.

  Moreover, according to this embodiment, the air conditioner 110 divides the inside of the housing | casing 114 into three, the heat exchange chamber 119 which accommodated the utilization side heat exchanger 21 and the utilization side air blower 22 in one side is provided, and compression is carried out in the other. Since the machine room 116 containing the machine 11 is provided, the remaining sterilization room 120 is provided, and conditioned air is circulated through the sterilization room 120, the machine room 116 is formed in the casing 114 of the air conditioner 110. Since the air sterilization unit 4 can be easily arranged in the sterilization chamber 120, a large amount of conditioned air supplied to the movie theater 100 can be sterilized with a simple configuration without increasing the size of the apparatus. it can.

  In addition, according to the present embodiment, since the plurality of gas-liquid contact members 41A1, A2-41F1, and F2 are arranged so as to cover almost the entire surface of the air passage 120A in the sterilization chamber 120, the air passage 120A in the sterilization chamber 120. Since the air passing through the air is uniformly sterilized by the gas-liquid contact members 41A1, A2-41F1, and F2, a large amount of conditioned air supplied to the movie theater 100 through the air outlet 104 is uniformly sterilized. be able to.

  Also, the gas-liquid contact members 41A1, A2-41F1, F2 are arranged vertically, and the gas-liquid contact members 41F1, F2 that cover the lower area A of the air passage 120A are replaced by the gas-liquid contact members 41A1, A2 that cover the upper area B. Also, the plurality of gas-liquid contact members 41A1, A2-41F1, F2 having a total area larger than the opening area of the air passage 120A are arranged in a uniform manner in the air passage 120A. It is possible to improve the sterilization ability of the gas-liquid contact members 41A1, A2-41F1, F2 arranged in the air passage 120A.

  In the present embodiment, a water circulation method is adopted in which the water received by the drain pan 44 is returned to the water storage tank 51 through the circulation path 55. By effectively using a small amount of water, air can be sterilized efficiently over a long period of time. It can be carried out. Further, since the water level in the water storage tank 51 decreases due to evaporation, the water supply valve 58 is opened by the operation of the float switch FS, and an appropriate amount of tap water is supplied from the water supply port. Thus, by circulating the water, the amount of water used can be reduced compared with the method of discharging the water received by the drain pan 44 as it is, and the running cost when operating the sterilization unit 150 can be reduced. Can be planned. In particular, in the roof top type air conditioner 110 as in the present embodiment, since the amount of air blown into the building 200 is large, the gas-liquid contact members 41A1, A2-41F1, The amount of water supplied to F2 increases according to the amount of air. Therefore, in the rooftop type air conditioner 110, the water saving effect by returning the water received by the drain pan 44 to the water storage tank 51 through the circulation path 55 is greater.

As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to this. In the present embodiment, the gas-liquid contact members 41A1, A2-41F1, and F2 are arranged in the sterilization chamber 120 formed in the rooftop type air conditioner 110. However, the present invention is not limited to this. Of course, a chamber may be provided in the air supply duct 105 that connects the air conditioner 110 and the air outlet 104 formed in the ceiling portion 103 of the movie theater 100, and the chamber may be disposed in the chamber.
In the present embodiment, the water circulation method is used in which the water received by the drain pan 44 is returned to the water storage tank 51 through the circulation path 55. However, the water received by the drain pan 44 may be discharged as it is. In this configuration, although the amount of water used is increased as compared with the water circulation system, it is not necessary to provide the circulation path 63, so that the equipment cost can be reduced.
In the present embodiment, the gas-liquid contact members 41A1, A2 to 41F1, and F2 are arranged side by side, and the gas-liquid contact members 41F1 and F2 that cover the lower area A of the air passage 120A are the gas that covers the upper area B. The liquid contact members 41A1 and A2 are arranged so as to be sequentially shifted to the upstream side of the air passage 120A. However, the present invention is not limited to this, and the gas-liquid contact members 41F1 and F2 that cover the lower area A of the air passage 120A. As a matter of course, the arrangement may be such that the gas-liquid contact members 41A1 and A2 covering the upper region B are sequentially shifted to the downstream side of the air passage 120A.

It is sectional drawing which shows the state in which the rooftop type air conditioner concerning this embodiment was installed in the building. It is a figure which shows schematic structure of an air conditioner. It is the figure which looked at the internal structure of the air conditioner from the upper direction. It is a figure which shows schematic structure of the sterilization unit provided in the air conditioner. It is a perspective view which shows the structure of a gas-liquid contact member. It is a side view which shows the arrangement configuration of a gas-liquid contact member. It is a figure which shows the attachment structure of an electrolysis unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat source side unit 2 Usage side unit 4 Air sanitization part 5 Electrolyzed water circulation supply part 11 Compressor 14 Heat source side heat exchanger 21 Usage side heat exchanger 22 Usage side blower 41A1, 41A2, 41B1, 41B2, 41C1, 41C2, 41D1 , 41D2, 41E1, 41E2, 41F1, 41F2 Gas-liquid contact member 51 Water storage tank (water tank)
51A Opening 52 Electrolysis unit 54 Branch pipe 56 Electrolyzed water supply pipe (supply pipe)
71 Case body 72 Electrode 74 Flange 100 Movie theater (large space)
104 Air outlet 105 Air supply duct 110 Air conditioner 116 One room (machine room)
119 Heat exchange room 120 Sterilization room (chamber)
120A Air passage 150 Disinfection unit 200 Building A Lower area B Upper area

Claims (10)

A chamber connected to a plurality of outlets opened in one large space via an air supply duct is provided.
An air sterilization section having a plurality of gas-liquid contact members that sterilize the air by bringing air and electrolyzed water into contact with each other in the chamber,
While providing a water tank connected to each gas-liquid contact member of the air sterilization unit via a water pump to a supply pipe that supplies the electrolyzed water,
An electrolysis unit for generating the electrolyzed water is provided,
A portion of the electrolyzed water in the water tank that is pumped out by the water pump and supplied to a plurality of gas-liquid contact members via the supply pipe is guided to the electrolysis unit, and electrolyzed water is generated by the electrolysis unit to generate the electrolyzed water. A sterilization system comprising a mechanism for returning it to the water tank.   The sterilization system according to claim 1, wherein a plurality of gas-liquid contact members are arranged so as to cover substantially the entire surface of the air passage in the chamber.   The gas-liquid contact members are arranged up and down, and the gas-liquid contact members that cover the lower region of the air passage are arranged to be shifted upstream of the gas-liquid contact members that cover the upper region. The sterilization system according to claim 2.   The gas-liquid contact members are arranged vertically, and the gas-liquid contact members that cover the lower region of the air passage are arranged to be shifted to the downstream side of the air passage relative to the gas-liquid contact members that cover the upper region. The sterilization system according to claim 2. An air conditioner that is connected to a plurality of outlets opened in one large space via an air supply duct and supplies conditioned air to each outlet via the air supply duct,
A chamber is provided in a ventilation path from the air conditioner to a plurality of outlets,
An air sterilization unit having a plurality of gas-liquid contact members for sterilizing the conditioned air by bringing conditioned air and electrolyzed water into contact with each other in the chamber;
While providing a water tank connected to each gas-liquid contact member of the air sterilization unit via a water pump to a supply pipe that supplies the electrolyzed water,
An electrolysis unit for generating the electrolyzed water is provided,
A portion of the electrolyzed water in the water tank that is pumped out by the water pump and supplied to a plurality of gas-liquid contact members via the supply pipe is guided to the electrolysis unit, and electrolyzed water is generated by the electrolysis unit to generate the electrolyzed water. An air-conditioning sterilization system comprising a mechanism for returning the water tank.   The air according to claim 5, wherein an electrolysis unit that generates the electrolyzed water is directly attached to the water tank, and scales generated by the electrolysis unit are returned to the water tank together with the electrolyzed water. Harmonized sterilization system.   The air conditioner is divided into a housing, a heat exchange chamber containing a heat exchanger and a blower is provided in one room, a machine room containing a compressor is provided in another room, and the chamber is provided in another room. The air conditioning sterilization system according to claim 5 or 6, wherein conditioned air is circulated through the chamber.   The air supply duct is connected to the chamber, and a plurality of gas-liquid contact members are arranged so as to cover substantially the entire surface of the air flow path in the chamber toward the air supply duct. The air-conditioning sterilization system described in 1.   The gas-liquid contact members are arranged up and down, and the gas-liquid contact members that cover the lower region of the air passage are arranged to be shifted upstream of the gas-liquid contact members that cover the upper region. The air-conditioning sterilization system according to claim 8.   The gas-liquid contact members are arranged vertically, and the gas-liquid contact members that cover the lower region of the air passage are arranged to be shifted to the downstream side of the air passage relative to the gas-liquid contact members that cover the upper region. The air-conditioning sterilization system according to claim 8.

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