JP2014016129A - Outside air processor incorporating humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outside air processor incorporating a humidifier capable of keeping a vaporization type humidifier clean with a simple structure and without increasing the size of an installation space.SOLUTION: An outside air processor incorporating a humidifier includes: an air ventilation passage 19 that sections a housing 11 into upper and lower parts and supplies, into a room, outside air flowing through a lower space 16 and an upper space 15 of the housing 11; an air blower 30 arranged in the air ventilation passage 19; a vaporization type humidifier 22 for humidifying outside air flowing in the air ventilation passage 19, arranged in the upper space 15 of the housing 11; and an electrolytic water circulation supply device 35 for having electrolytic water including active oxygen species generated due to electrolysis of water circulated in the vaporization type humidifier 22 and supplied, arranged in the lower space 16 of the housing 11.

Description

  The present invention relates to a humidifier built-in outdoor air processing machine that humidifies external air and supplies it indoors.

  Conventionally, a base, an outside air inlet provided in the base, an outside air channel communicating with the outside air inlet, a vaporizing humidifier that humidifies air from the outside air channel, and the vaporizing humidifier A device called an air handling unit and an outside air processing humidifier equipped with a blower that supplies the air to the room to be humidified are known (for example, see Patent Document 1).

Japanese Patent Application Laid-Open No. 06-159732

This type of outside air treatment humidifier is configured to continuously supply water to the vaporizing humidifier during the humidifying operation, and the water flowing down the vaporizing humidifier is directly discharged outside the machine. Therefore, there is a demand for a configuration in which this water is circulated and supplied to the vaporizing humidifier to reduce the amount of water used.
However, when water is simply circulated through the vaporizing humidifier, the germs floating in the air are mixed into the water over time. The problem of being supplied into the room together with is assumed.
In order to solve this problem, a system for cleaning the vaporizing humidifier is required separately, and there arises a problem that these devices are enlarged and the installation space is enlarged.
The object of the present invention is to incorporate a humidifier that eliminates the above-mentioned problems of the prior art and can circulate and supply water while keeping the vaporizing humidifier clean with a simple configuration without increasing the installation space. It is to provide an outside air processing machine.

  In order to achieve the above-described object, the present invention divides the inside of the casing into upper and lower parts, and provides a ventilation path through which the outside air flows through the lower space and the upper space of the casing, and is disposed in the ventilation path. An active oxygen produced by electrolyzing water in a lower space of the casing, and a vaporizing humidifier that humidifies outside air flowing through the ventilation path is disposed in the upper space of the casing. An electrolyzed water circulation supply device that circulates and supplies electrolyzed water containing seeds to the vaporizing humidifier is arranged.

  According to this configuration, electrolytic water containing active oxygen species generated by electrolyzing water is supplied to the vaporizing humidifier, so that germs and molds are generated in the vaporizing humidifier by the active oxygen species in the electrolytic water. Propagation is prevented and the vaporizing humidifier can be kept clean. Furthermore, an evaporative humidifier is disposed in the upper space of the housing that forms a part of the ventilation path, and an electrolyzed water circulation and supply device is disposed in the lower space of the housing to circulate and supply the electrolyzed water to the evaporative humidifier. For this reason, the electrolytic water circulation supply device can be accommodated in the air passage, so that the vaporizing humidifier and the electrolytic water circulation supply device can be arranged in a compact manner in the upper and lower sides. Therefore, even if the electrolyzed water circulation supply device is arranged in the housing, the installation space of the housing is prevented from increasing in size. Furthermore, since electrolytic water can be circulated and supplied to the vaporizing humidifier, the amount of water used can be reduced.

In this configuration, the electrolyzed water circulation supply device includes a water tank that stores water, an electrolysis unit that electrolyzes water in the water tank to generate electrolyzed water, and sends the generated electrolyzed water to the vaporizing humidifier. The circulation pump may be formed in a box.
According to this configuration, when the electrolyzed water circulation supply device is arranged in the lower space of the housing, there is no need to provide a duct for separating the arrangement region of the electrolyzed water circulation supply device from the ventilation region in the lower space. The arrangement configuration of the electrolytic water circulation supply device in the lower space can be simplified. Further, when working on the water tank, the electrolysis unit, and the circulation pump, each device can be accessed by opening the box, and the maintenance work of each device can be easily performed.

The electrolytic water circulation supply device and the vaporizing humidifier include a supply pipe that supplies the electrolytic water discharged from the circulation pump to the humidifying element of the vaporizing humidifier, and the water that flows down from the humidifying element. It may be connected with a return pipe that returns to the aquarium.
According to this configuration, by utilizing the difference in height between the vaporizing humidifier and the electrolyzed water circulation supply device, the water flowing down from the humidifying element can be easily returned to the water tank, and the piping when circulating the electrolyzed water The configuration can be simplified. Furthermore, since only the supply pipe and the return pipe extend in the ventilation path, it is possible to suppress an increase in ventilation resistance.

Further, a heat exchanger for exchanging heat between the refrigerant supplied from the outside and the outside air may be disposed between the electrolyzed water circulation supply device and the vaporizing humidifier in the ventilation path.
In addition, when the operation of the blower is stopped, the electrolyzed water circulation supply device supplies high concentration electrolyzed water containing the active oxygen species to the vaporization humidifier at a higher concentration than that during humidification operation. A cleaning operation control means for cleaning the vaporizing humidifier may be provided.
According to this configuration, since the high-concentration electrolyzed water is supplied to the vaporizing humidifier during the period when the operation of the blower is stopped, the vaporizing humidifier is sufficiently washed, so that the vaporizing humidification is performed. It is possible to reliably prevent germs and molds from breeding in the vessel.

  According to the present invention, the interior of the housing is divided into upper and lower portions, a ventilation path through which outside air flows through the lower space and the upper space of the housing and supplied to the room, and a blower disposed in the ventilation path. An evaporative humidifier that humidifies the outside air flowing through the ventilation path is disposed in the upper space of the housing, and electrolyzed water containing active oxygen species generated by electrolyzing water is disposed in the lower space of the housing. Since the electrolyzed water circulation supply device that circulates and supplies to the vaporizing humidifier is disposed, the electrolytic water circulation supply device can be accommodated in the air passage so that the vaporizing humidifier and the electrolyzed water circulation supply device can be compacted vertically in the housing. Can be arranged. Therefore, even if the electrolyzed water circulation supply device is arranged in the housing, the installation space of the housing is prevented from increasing in size. Furthermore, when electrolyzed water containing active oxygen species generated by electrolyzing water is supplied to the vaporizing humidifier, germs and mold may propagate in the vaporizing humidifier due to the active oxygen species in the electrolytic water. And the vaporizing humidifier can be kept clean. Furthermore, since electrolytic water can be circulated and supplied to the vaporizing humidifier, the amount of water used can be reduced.

It is a perspective view which shows the internal structure of the humidifier built-in external air processing machine which concerns on this embodiment. It is a perspective view which shows the internal structure of an electrolyzed water circulation supply apparatus. It is a side view which shows the arrangement configuration of a vaporization type humidifier and an electrolyzed water circulation supply apparatus. It is a perspective view which shows the internal structure of the humidifier built-in external air processing machine which concerns on another embodiment. It is a perspective view which shows the internal structure of the humidifier built-in external air processing machine which concerns on another embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an internal configuration of a humidifier built-in outside air processing machine (hereinafter simply referred to as an outside air processing machine) 10 according to the present embodiment. In FIG. 1, the panel on the front side of the housing is removed so that the inside is exposed.
The outside air processor 10 is a device that supplies the outside air that has been subjected to temperature control and humidification treatment to the room after the temperature adjustment and humidification treatment have been performed on the introduced outside air. As shown in FIG. 1, the outside air processing machine 10 has a box-shaped housing 11 that is formed in a horizontally long shape, and the top plate 11A of the housing 11 has an outside air on the side plate 11B side of the top plate 11A. An intake port 12 is provided, and an air supply port 13 is provided on the center side of the outside air intake port 12.
An outside air duct (not shown) whose one end opens to the outdoor side is connected to the outside air inlet 12, and an indoor air duct (not shown) whose one end opens to the room is connected to the air supply port 13.

The housing 11 includes a horizontal partition plate 14 that divides the interior into an upper space 15 and a lower space 16, and a vertical partition plate 17 that further partitions the upper space 15 into left and right. The vertical partition plate 17 is disposed so as to partition the outside air inlet 12 and the air inlet 13, and forms a filter chamber 18 in the upper space 15. In the filter chamber 18, a filter material 20 that is disposed substantially parallel to the top plate 11 </ b> A and the horizontal partition plate 14 and removes dust and the like contained in the outside air is disposed.
A communication opening 14 </ b> A that communicates the upper space 15 (filter chamber 18) and the lower space 16 is formed at one end side (side plate 11 </ b> B side) in the width direction of the horizontal partition plate 14 so as to face the outside air inlet 12. The Similarly, a communication opening 14B that connects the upper space 15 and the lower space 16 is formed on the other end side (side plate 11C side) of the horizontal partition plate 14. As a result, the outside air (air) flows through the outside air inlet 12, the filter chamber 18, the communication opening 14 </ b> A, the lower space 16, the communication opening 14 </ b> B, the upper space 15, and the air supply port 13 in the housing 11. 19 is formed.

In the upper space 15, an air heat exchanger 21 and a vaporizing humidifier 22 are arranged between the communication opening 14 </ b> B and the air supply port 13 along the direction of air flow.
The air heat exchanger 21 is a fin tube type heat exchanger that performs heat exchange between the outside air flowing through the ventilation path 19 and cold water or hot water supplied from the outside (for example, a cold / hot water machine (not shown)). The cooling operation is performed when the cold water is supplied and the heating operation is performed when the hot water is supplied via the pipe, and the outside air flowing through the ventilation path 19 is temperature-controlled, and the temperature-controlled air is supplied indoors. In addition, instead of the above-described cold / hot water machine, a heat source side unit (not shown) including a compressor, a four-way valve, a heat source side heat exchanger, an expansion valve, and the like that compresses the refrigerant through a refrigerant pipe is an air heat exchanger. 21 may be connected. In this case, when the air heat exchanger 21 is operated as a refrigerant evaporator, a cooling operation is performed, and when the air heat exchanger 21 is operated as a refrigerant condenser, a heating operation is performed.

The vaporizing humidifier 22 includes a humidifying element 23 having water absorption and a drain pan 25 that receives water flowing down from the humidifying element 23, and water infiltrated into the humidifying element 23 and air flowing through the ventilation path 19. This contact humidifies the air.
In the present embodiment, the vaporizing humidifier 22 is disposed below the air supply port 13 so that humidified air can be quickly supplied into the room.

  On the other hand, in the lower space 16, electrolyzed water is circulated to the humidifying element 23 of the vaporizing humidifier 22 between the blower 30 for flowing outside air to the ventilation path 19 and the blower 30 and the communication opening 14 </ b> A. An electrolytic water circulation supply device 35 is provided. The electrolytic water circulation supply device 35 includes a case body (box body) 36 placed on the bottom plate 11 </ b> D of the housing 11, and is accommodated in the lower space 16 that constitutes a part of the ventilation path 19. Between the electrolyzed water circulation supply device 35 and the vaporizing humidifier 22, as shown in FIG. 1, a supply pipe 24 that supplies electrolyzed water from the electrolyzed water circulation supply device 35 to the humidifying element 23 of the vaporizing humidifier 22, and A return pipe 26 for returning the water received by the drain pan 25 to the electrolyzed water circulation supply device 35 is connected.

FIG. 2 is a perspective view showing an internal configuration of the electrolytic water circulation supply device 35. FIG. 2 shows a state in which the upper, front and one side panel plates of the case body 36 are removed.
As shown in FIG. 2, the electrolyzed water circulation supply device 35 is configured by housing a water storage tank 51 (water tank), a salt water tank 52, and an electrical box 53 in a case body 36.
The water storage tank 51 is a water tank for storing electrolytic water generated by electrolyzing city water. The water storage tank 51 is provided with a water supply pipe 56 including a water supply electromagnetic valve 55 for supplying city water. ing. The water supply electromagnetic valve 55 is controlled to open and close according to the operation of the float switch 57 disposed in the water storage tank 51.
Further, the water storage tank 51 is provided with an overflow discharge port 61, a water drain port 62, and a circulating water return port 63. The overflow outlet 61 is an opening that discharges electrolytic water to an overflow pipe (not shown) when the level of the electrolyzed water in the water storage tank 51 exceeds the height of the overflow outlet 61. The circulating water return port 63 is an opening to which the return pipe 26 from the vaporizing humidifier 22 is connected. The drain port 62 is an opening for forcibly draining the entire amount of electrolyzed water in the water storage tank 51 when performing the cleaning operation of the vaporizing humidifier 22, and the water storage tank 51 and the water drain port 62. A drain electromagnetic valve (not shown) is provided in the pipe between the two.

  A circulation pump 65 is connected to the water storage tank 51 through an intake pipe 64 to circulate the electrolytic water in the water storage tank 51 to the vaporizing humidifier 22. An electrolytic water supply pipe 66 is connected to the discharge port side of the circulation pump 65, and the above-described supply pipe 24 is connected to the supply port 66 </ b> A of the electrolytic water supply pipe 66.

In addition, an electrolysis module 67 that electrolyzes the water in the water storage tank 51 to generate electrolyzed water is disposed in the water storage tank 51. The electrolysis module 67 includes at least a pair of electrodes (not shown). By applying a voltage between these electrodes, the 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 oxygen species include so-called broadly active oxygen species such as ozone and hypohalous acid.

The electrodes 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, 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 electrolyzed water generated by the electrolysis module 67 is an aqueous solution in which hypochlorous acid is dissolved, and exhibits various air cleaning effects such as sterilization, deodorization, and decomposition of organic compounds.
The electrolyzed water in the water storage tank 51 is supplied to the vaporizing humidifier 22 through the circulation pump 65 and the supply pipe 24, and the electrolytic water flowing down from the vaporizing humidifier 22 is received by the drain pan 25 and then returned to the return pipe 26. Through the water storage tank 51. For this reason, when the electrolyzed water is circulated and supplied between the vaporizing humidifier 22 and the water storage tank 51, hypochlorous acid in the electrolytic water is separated from the humidifying element 23 of the vaporizing humidifier 22. Always contact.
For this reason, various bacteria and molds are prevented from breeding on the humidifying element 23 of the vaporizing humidifier 22 by the action of hypochlorous acid. For this reason, since this humidification element 23 can always be kept in a clean state, clean outside air humidified by the humidification element 23 can be supplied indoors.

Here, as the concentration of hypochlorous acid (active oxygen species) in the electrolyzed water is higher, the sterilization of the humidifying element 23 can be completed in a shorter time, but when the concentration of hypochlorous acid is high, There is a problem that hypochlorous acid decomposes and a chlorine odor is likely to occur.
For this reason, in this configuration, the hypochlorous acid concentration in the electrolyzed water supplied to the vaporizing humidifier 22 during the humidifying operation is a free residual chlorine concentration (for example, 0. 0) that remains in general city water (tap water). 1 ppm or more). Thereby, the user who lives indoors can always supply clean humidified outside air indoors without almost feeling a chlorine smell.

The saline tank 52 stores saline adjusted to a predetermined concentration (saturated concentration) in advance, and the saline tank 52 is supplied with a saline supply pump for supplying saline into the reservoir tank 51. 70 is connected. As a result, even when dilute water having a chloride ion concentration such as well water is used, since salt water (chloride ion) is added to this water, it always contains hypochlorous acid by electrolysis. Electrolyzed water can be generated.
Note that the electrolyte added to the water in the water storage tank 51 in order to efficiently generate active oxygen species is not limited to salt, and other electrolytes can be used. For example, calcium chloride or magnesium chloride is used. It is also possible to use halogen-containing salts containing other halogens, and various halogenates of chlorine and other halogens, and electrolytes containing no halogen may be used.

  The electrical box 53 is disposed on the front side of the water storage tank 51 and the saline tank 52. In the electrical box 53, there is a control board 53A for comprehensively controlling the operation of the electrolyzed water circulation supply device 35, and a power supply circuit section 53B for supplying power to the electrolysis module 67, the circulation pump 65, etc. under the control of the control board 53A. Is housed. When the panel on the front side of the case body 36 is removed, the front side of the electrical box 53 is opened, and the control board 53A and the power supply circuit unit 53B in the electrical box 53 can be easily accessed.

As described above, according to the configuration including the electrolyzed water circulation supply device 35 that electrolyzes water to generate electrolyzed water and circulates and supplies the electrolyzed water to the vaporizing humidifier 22, the water circulation type vaporization is performed. Even in the case of the type humidifier 22, it is possible to prevent generation of germs and mold on the humidifying element 23 of the vaporizing humidifier 22, and to keep the humidifying element 23 clean and to reduce the amount of water used. Is possible.
However, in the above-described configuration, the electrolyzed water circulation supply device 35 is necessary, and if this electrolyzed water circulation supply device 35 is simply arranged in the housing 11, there is a problem that the housing 11 is enlarged and the installation space is enlarged. The

  For this reason, in this configuration, as shown in FIG. 1, the interior of the housing 11 is divided into upper and lower parts, and an air passage 19 through which outside air flows through the lower space 16 and the upper space 15 of the housing 11 and is supplied to the room. The vaporizing humidifier 22 that humidifies the outside air flowing through the ventilation path 19 is disposed in the upper space 15 of the housing 11, so that a space is secured in the lower space 16 that constitutes a part of the ventilation path 19. be able to. As shown in FIG. 3, the electrolyzed water circulation supply device 35 can be accommodated in the ventilation path 19 by arranging the electrolyzed water circulation supply device 35 in the lower space 16 immediately below the vaporization humidifier 22. The vessel 22 and the electrolyzed water circulation supply device 35 can be arranged in a compact manner in the casing 11. Therefore, even when the electrolyzed water circulation supply device 35 is arranged in the casing 11, it is possible to prevent the casing 11 from increasing in size in the direction of increasing the installation space such as the width direction and the depth direction.

  Moreover, according to this embodiment, since the electrolyzed water circulation supply device 35 is disposed directly under the vaporizing humidifier 22, the water accumulated in the drain pan 25 can be easily added to the water storage tank 51 due to the height difference (gravity). In addition to being able to return, the supply pipe 24 and the return pipe 26 can be shortened, so that the amount of hypochlorous acid in the electrolytic water consumed by the supply pipe 24 and the return pipe 26 other than the vaporizing humidifier 22 is reduced. And the use efficiency of electrolyzed water can be increased.

  Moreover, according to this embodiment, the electrolyzed water circulation supply device 35 is generated with the water storage tank 51 for storing water, and the electrolysis module 67 for electrolyzing the water in the water storage tank 51 to generate electrolyzed water. And a circulation pump 65 for sending the electrolyzed water to the vaporizing humidifier 22, and these are housed in a single case body 36, so when the electrolyzed water circulation supply device 35 is arranged in the lower space 16, In the lower space 16, there is no need to provide a duct for separating the arrangement area of the electrolyzed water circulation supply device 35 from the ventilation area, and the arrangement configuration of the electrolyzed water circulation supply apparatus 35 in the lower space 16 can be simplified. Furthermore, when working on the water storage tank 51, the electrolysis module 67, and the circulation pump 65, each device can be accessed by opening the upper panel or the front panel of the case body 36, and the maintenance work of each device. Can be easily performed.

  Further, according to the present embodiment, the electrolyzed water circulation supply device 35 and the vaporizing humidifier 22 include the supply pipe 24 that supplies the electrolyzed water discharged from the circulation pump 65 to the humidifying element 23 of the vaporizing humidifier 22; Since the water flowing down from the humidifying element 23 is connected to the return pipe 26 that returns the water to the water storage tank 51 via the drain pan 25, the supply pipe 24 and the return pipe 26 only extend in the ventilation path 19. Therefore, it is possible to suppress an increase in ventilation resistance.

Next, operation | movement of the electrolyzed water circulation supply apparatus 35 is demonstrated.
First, at the start of operation, the control board 53A opens the drainage electromagnetic valve, discharges the water accumulated in the water storage tank 51 through the drain port 62, and opens the water supply electromagnetic valve 55 after discharge to enter the water storage tank 51. Supply new city water (tap water). Thereby, since the water in the water storage tank 51 is always replaced with clean water at the start of operation, it is possible to suppress the occurrence of contamination in the water circulation path.
The control board 53 </ b> A operates the saline supply pump 70 when supplying city water to supply a predetermined concentration and a predetermined amount of saline into the water storage tank 51.

Subsequently, the control board 53 </ b> A applies a predetermined voltage to the electrodes of the electrolysis module 67 to electrolyze the water in the water storage tank 51. In this case, the control board 53A is set to a voltage such that the hypochlorous acid concentration in the electrolyzed water is approximately the same as that of tap water (0.5 to 1 ppm) based on the conductivity measured between the electrodes. Perform electrolysis.
Next, the control board 53 </ b> A operates the circulation pump 65 to supply the electrolyzed water in the water storage tank 51 to the humidifying element 23 of the vaporizing humidifier 22. The hypochlorous acid in the supplied electrolyzed water decomposes germs and organic compounds adhering to the humidifying element 23, so that the humidifying element 23 is kept clean.
On the other hand, the electrolyzed water consumes hypochlorous acid due to decomposition of bacteria and organic compounds, but the electrolyzed water flowing down from the humidifying element 23 is returned into the water storage tank 51 through the return pipe 26 in a short time. And since it can hold | maintain the hypochlorous acid density | concentration in electrolyzed water uniformly by electrolyzing again in this water storage tank 51, even if it is the structure which circulates water (circulating water) Can be kept clean.
Thereby, not only the humidifying element 23 but also germs and molds are prevented from being generated in the circulation path, and clean air can be supplied indoors.
In the return pipe 26, an inverted U-shaped trap 90 is provided in the vicinity of the connection portion with the water storage tank 51. The reason for providing this trap 90 is as follows. For example, when the space pressure of the upper space 15 in which the vaporizing humidifier 22 is disposed becomes considerably lower than the internal pressure of the case body 36, the water in the water storage tank 51 flows back through the return pipe 26 and rises. Returning to the drain pan 25 can be considered. On the contrary, when the space pressure in the upper space 15 becomes considerably higher than the internal pressure of the case body 36, the air itself in the upper space 15 may flow into the water storage tank 51 through the return pipe 26. Considering such a case, if the inverted U-shaped trap 90 is provided, the in-pipe resistance of the return pipe 26 acts to make the above-described problems difficult to occur.

Further, for example, when the operation of the outside air processing machine 10 is stopped, such as when the operation of the blower 30 is stopped, the control board 53A executes a cleaning operation mode for cleaning the humidifying element 23 of the vaporizing humidifier 22. . In the present embodiment, the control board 53A functions as a cleaning operation control unit.
In the cleaning operation mode, the control board 53A opens the drain electromagnetic valve to discharge the water accumulated in the water storage tank 51 through the water drain port 62, and opens the water supply electromagnetic valve 55 after discharge to enter the water storage tank 51. Supply new city water (tap water).
Subsequently, the control board 53 </ b> A applies a predetermined voltage to the electrodes of the electrolysis module 67 to electrolyze the water in the water storage tank 51. In this case, the control board 53A performs electrolysis by setting the voltage to generate electrolyzed water having a concentration of hypochlorous acid higher (for example, 2 ppm or more) than during normal humidifying operation.
Then, the control board 53A operates the circulation pump 65 to supply high-concentration electrolyzed water in the water storage tank 51 to the humidifying element 23 of the vaporizing humidifier 22 and circulate the electrolyzed water in the circulation path.
Accordingly, since the high-concentration electrolyzed water is supplied to the vaporizing humidifier 22 while the operation of the blower 30 is stopped, the vaporizing humidifier 22 is sufficiently washed, thereby the vaporizing humidifier. Thus, it is possible to reliably prevent germs and molds from breeding on 22. Moreover, since it performs during the stop period of the air blower 30, the chlorine which generate | occur | produces when a high concentration hypochlorous acid decomposes is rarely supplied indoors, and the situation where a chlorine smell drifts indoors can be prevented.
This cleaning operation mode may be performed during the stop period of the blower 30 and need not be performed every time the blower 30 stops.

As mentioned above, although the form for implementing this invention was described, this invention is not limited to above-mentioned embodiment, Various deformation | transformation and a change are possible based on the technical idea of this invention.
FIG. 4 is a perspective view showing an internal configuration of an outside air processing device 110 according to another embodiment. In FIG. 4, a configuration different from the above-described outside air processing device 10 will be described, and the same configuration is denoted by the same reference numeral and description thereof is omitted.
In the above-described outside air processing machine 10, the top plate 11 </ b> A of the housing 11 is provided with the outside air inlet 12 and the air inlet 13, and the filter chamber 18 that communicates with the outside air inlet 12 is provided. In the form, as shown in FIG. 4, the outside air processing unit 110 has an outside air inlet 82 formed at a position communicating with the lower space 16 of the side plate 11 </ b> B of the housing 11, and an air supply opening at a position communicating with the upper space 15. 83 is formed. The filter material 20 is disposed at the outside air inlet 82.
Even in this configuration, the ventilation path 19 in which the outside air introduced into the lower space 16 from the outside air inlet 82 flows sequentially from the lower space 16 to the upper space 15 is formed in the housing 11. Since the vaporizing humidifier 22 is disposed in the space 15 and the electrolytic water circulation supply device 35 is accommodated in the lower space 16 immediately below the vaporization humidifier 22, the vaporization humidifier 22 and the electrolytic water circulation supply device 35 are connected to each other. The casing 11 can be compactly arranged up and down. Therefore, even if the electrolyzed water circulation supply device 35 is arranged in the housing 11, the installation space of the housing 11 is prevented from increasing in size.

FIG. 5 is a perspective view showing an internal configuration of an outside air processing device 210 according to another embodiment. In FIG. 5, a configuration different from the above-described outside air processing device 10 will be described, and the same configuration is denoted by the same reference numeral and description thereof is omitted.
As shown in FIG. 5, the outside air treatment device 210 has an air heat exchanger 21 disposed in the lower space 16 between the filter material 20 and the electrolytic water circulation supply device 35, and the electrolytic water circulation supply device 35 and the vaporizing humidifier 22. The blower 30 is arranged in the upper space 15 between the two.
According to this configuration, the air heat exchanger 21 is arranged on the air upstream side (primary side) of the electrolyzed water circulation supply device 35, so that the outside air heat-exchanged by the air heat exchanger 21 is electrolyzed water circulation supply device 35. Circulate around. For this reason, for example, even when the outside air temperature is below freezing, the outside water heated by the air heat exchanger 21 is supplied to the electrolyzed water circulation supply device 35, so that the inside of the supply pipe 24 and the return pipe 26 The electrolytic water is prevented from freezing. In addition, since the arrangement | positioning relationship of the vaporization type humidifier 22 and the electrolyzed water circulation supply apparatus 35 is not changed by this structure, of course, there exists an above-described effect.

10, 110, 210 Outside air processing machine (humidifier built-in outside air processing machine)
DESCRIPTION OF SYMBOLS 11 Case 14 Horizontal partition plate 15 Upper space 16 Lower space 19 Ventilation path 22 Vaporization type humidifier 23 Humidification element 24 Supply pipe 25 Drain pan 26 Return pipe 30 Blower 35 Electrolyzed water circulation supply device 36 Case body (box body)
51 Water storage tank (water tank)
53 Electrical box 53A Control board (cleaning operation control means)
65 Circulation Pump 66A Supply Port 67 Electrolysis Module 70 Saline Solution Pump 90 Trap

Claims (5)

The inside of the housing is divided into upper and lower parts, and a ventilation path that is supplied to the room through outside air flows through a lower space and an upper space of the casing, and a blower disposed in the ventilation path,
An evaporative humidifier that humidifies the outside air flowing through the ventilation path is disposed in the upper space of the casing, and electrolyzed water containing active oxygen species generated by electrolyzing water is formed in the lower space of the casing. A humidifier built-in outside air processing machine, characterized in that an electrolyzed water circulation supply device that circulates and supplies the vaporization humidifier is disposed.   The electrolyzed water circulation supply device includes a water tank for storing water, an electrolysis unit for electrolyzing water in the water tank to generate electrolyzed water, and a circulation pump for sending the generated electrolyzed water to the vaporizing humidifier. The humidifier built-in outside air processing machine according to claim 1, wherein the humidifier is incorporated in a box.   The electrolytic water circulation supply device and the vaporizing humidifier are a supply pipe for supplying electrolytic water discharged from the circulation pump to the humidifying element of the vaporizing humidifier, and water flowing down from the humidifying element to the water tank. The humidifier built-in outside air processing machine according to claim 2, wherein the humidifier is incorporated in a return pipe for return.   A heat exchanger for exchanging heat between the refrigerant supplied from the outside and the outside air is disposed in the ventilation path between the electrolyzed water circulation supply device and the vaporizing humidifier. The humidifier built-in outside air processing machine in any one of Claims 1 thru | or 3.   When the operation of the blower is stopped, the electrolyzed water circulation supply device supplies high concentration electrolyzed water containing the active oxygen species to a concentration higher than that during humidification operation to the vaporization humidifier. The humidifier built-in outside air processing device according to any one of claims 1 to 4, further comprising cleaning operation control means for cleaning the humidifier.

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