JPH0518609B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a wet air cleaning device.
More specifically, for example, food, medicine or precision machinery,
It uses a droplet flow area to remove dust from the air in clean rooms for large semiconductor factories, offices, hospitals, etc., and also adjusts humidity and temperature.
The present invention relates to a wet air purifying device whose purpose is to circulate the air indoors again.

[Prior art] As a conventional air purifying device of this type, the 23rd
As shown in the figure, outlet c of chamber b via blower a
The evaporator e is connected to the inlet d of the chamber b via the pipe f, and the heater g is connected to the inlet d of the chamber b via the pipe f. It is connected to the refrigerator k through a refrigerant supply pipe i and a refrigerant discharge pipe j, respectively, and the entrance and exit of the refrigerant condensing pipe arranged in a meandering manner in the warmer g is connected to the refrigerator k through pipes m and n. connected structures,
Alternatively, as shown in FIG. 24, the evaporator e
A reverse Rankine cycle is known in which a cyclone-type evaporator e' is used instead of the heater g, and a cyclone-type warmer g' is used instead of the warmer g (Japanese Patent Laid-Open No. 59-185922). (see issue).

In the conventional air purifying device configured as described above, the air blown into the evaporators e and e' from the chamber b by the blower a comes into contact with fine water droplets (cold water fine mist) and reaches a saturation temperature. At the same time, harmful components such as dust, bacteria, and viruses in the air are removed by a water shower in the evaporator e. The cooled and humidified air is then sent into the warmer g, where it is heated to an appropriate temperature and humidity-controlled, and then circulated into the room b. There is.

[Problems to be solved by the invention] However, in conventional air purifying devices, the contact between dust in the air and the fine mist of cold water, cooling, and heating are performed using separate devices, so each device must be prepared separately. At the same time, the piping and overall system routes become longer, and the blower equipment that sends the air also becomes larger or more numerous, making the entire structure larger and more complex, requiring more man-hours for construction, and increasing costs. There was a problem.

[Means for Solving the Problems] This invention was made in view of the above circumstances, and in order to solve the above technical problems, the first invention is as follows:
Dust in the air that should be cleaned and temperature/humidity controlled;
A charging section that charges bacteria, etc., a cold water supply section that brings a fine mist of cold water into contact with the dust, a cooling collection section and a fine water droplet removal section that collect the cooled dust, etc., and a part that supplies purified air. Reheating means for controlling temperature and humidity are gathered in one place, making it possible to efficiently purify the air and control temperature and humidity, as well as efficiently collect dust. A second invention is a wet air purifying device characterized in that, in addition to the first invention, a means for sterilizing the cooling water supplied to the cold water supply section is further added. This is what we are trying to provide.

That is, the first invention provides a cooling water tank for accommodating water whose temperature is adjusted by a lower part or a separate temperature adjustment means, and an air inlet is opened on the side of the upper part, and an air outlet is provided in the upper part. A cylindrical air purifier main body that opens, a cold water supply section disposed at an intermediate portion between the air inlet and the air outlet in the air purifier main body, and a horizontally arranged water supply section located below and upstream of the cold water supply section. a cooling collection section disposed; a fine water droplet removing section and a reheating means disposed in sequence toward the upper downstream side of the cold water supply section; and a charging section provided upstream of the air inlet. and the air outlet is connected to the air inlet of the chamber via an air blowing means, and the air outlet is connected to the air outlet of the chamber, and the cooling collection section is provided with a perforated plate and a lower surface of the perforated plate. one or more sets of collecting bodies, each consisting of a honeycomb core body in which the charging section has a plurality of through holes, a discharge counter electrode having a plurality of through holes, and a plurality of tips located at the center of each of the through holes; Provided is a wet air purifying device comprising a discharge electrode having a pointed discharge needle protruding therefrom, and wherein the cooling collection section is energized to a polarity opposite to the discharge electrode of the charging section. A second aspect of the present invention is to provide a wet air purifying device characterized in that the wet air purifying device further includes a sterilizing means for sterilizing the cooling water in the cooling water tank. .

In this invention, the temperature adjusting means may be any means as long as it cools the cooling water contained in the cooling water tank to a predetermined temperature, but is preferably installed at the top of the cooling water tank or within the cooling water tank. It is better to form the cooling coil provided.

The cooling collection unit may be any collection body as long as it is composed of a perforated plate and a honeycomb core body disposed on the lower surface of the perforated plate, but it is preferable to use a plurality of sets of collection units. It is better to form the honeycomb core body as an aggregate, and it is better to construct the honeycomb core body from a plurality of laminated honeycomb core materials whose through holes are offset from each other.

Furthermore, in the second invention, the sterilizing means may be any means for sterilizing water in the cooling water tank, such as an ultraviolet sterilizer, but
It is preferable to use ozone as a sterilization means. In this case, the ozone generator that constitutes part of the sterilization means may be an external type that supplies ozone to the ozone aeration section installed in the cooling water tank or the water tank connected to the cooling water tank, or an external type that supplies ozone to the ozone aeration section installed in the cooling water tank or the water tank connected to the cooling water tank. It may be any type of internally installed type consisting of a titanium oxide irradiated object disposed inside and a light emitter that irradiates the irradiated object with light.

[Effect] The above technical means works as follows.

When the indoor contaminated air is sent into the main body of the air purifier by driving the blowing means, first, the dust in the contaminated air is charged by the charging section. Next, when the contaminated air passes through the cooling collection section, cold water is sprayed from the cold water supply section and supplied onto the perforated plate of the cold water collection section, where it comes into contact with the rising contaminated air. Therefore, the cold water flowing down and the contaminated air rising will pass through the holes in the perforated plate at the same time. When the contaminated air passes through the holes in the perforated plate, it violently breaks the liquid film that has formed in the holes in the perforated plate, generating minute droplets and minute bubbles. As a result, a dense droplet flow region closely resembling a fluidized bed of powder is formed on the porous plate with an appropriate thickness in balance with the pressure loss of the contaminated air.

Dust and bacteria in contaminated air undergo effective gas-liquid contact when they break through the liquid film stretched over the holes of the perforated plate and when the droplet flow area formed on the perforated plate passes through. However, harmful dust and other particles are sufficiently transferred to the liquid side and collected.

In addition, since the collector constituting the cooling collection section has a honeycomb core body disposed on the lower surface of a perforated plate, dust and the like come into contact with and are collected by the liquid film flowing down the inner wall of the cell of the honeycomb core body. By configuring the charging section with a discharge counter electrode with multiple through holes and a discharge electrode with multiple pointed discharge needles located at the center of each through hole, the charging efficiency of dust, etc. is increased. In addition, since the cooling collection section is energized to the opposite pole to the discharge electrode of the charging section, it is possible to effectively collect dust and the like.

The fine droplets generated by the above-mentioned gas-liquid contact are transferred to the fine water droplet removal section and then collected. and,
The purified air is heated by the reheating means, adjusted to a predetermined temperature and humidity, and then circulated indoors.

In addition, in the second invention, since the water containing harmful bacteria contained in the collected dust stored in the cooling water tank can be sterilized by the sterilizing means, it is possible to circulate it again to the cold water supply section. becomes.

[Examples] Examples of the present invention will be described in detail below with reference to the accompanying drawings.

◎First invention FIG. 1 shows a schematic cross-sectional view of a wet air cleaning device according to the first invention.

The wet air purifying device of the present invention is provided with a cooling water tank 18 in the lower part of which contains water whose temperature is adjusted by a cooling coil 16 serving as a temperature adjustment means, and has an air inlet 12 opened on the side of the upper part. A cylindrical air purifier main body 10 having an air outlet 14 opened at the top, and a cold water supply section 20 disposed downwardly in the middle part between the air inlet 12 and the air outlet 14 in the air purifier main body 10.
, a cooling collection section 30 disposed horizontally on the lower upstream side of the cold water supply section 20 , a fine water droplet removing section 40 and a reheating means disposed in sequence toward the upper downstream side of the cold water supply section 20 A charging unit 60 is provided on the upstream side of the air inlet 12, and it is connected to the suction port 71 of the chamber 72 via a blower fan 70, which is a blower means, to control the air flow. The outlet 14 is connected to the air outlet 73 of the chamber 72.
It has a structure that is connected to.

The cooling coil 16 is disposed above the cooling water tank 18, or is formed by a meandering evaporator disposed within the cooling water tank 18 as shown in phantom lines in FIG. Further, the reheating coil 50 is also formed of a meandering condenser like the cooling coil 16, and the cooling coil 16 and the reheating coil 50 are connected via the same heat pump 80. There is. This heat pump 80 includes a compressor 82, condensers 50, 8
4, a receiver tank 86, an evaporator 16, an accumulator 88, etc. In addition,
The reheat coil 50 can also be a hot water flow exchanger without a condenser and connected to an electric heater 50' or a separate heating source (not shown).

The cold water supply unit 20 is connected to the cooling water tank 18 via a circulation pump 22, so that the water in the cooling water tank 18 is circulated and supplied. As shown in FIGS. 5 and 6, this cold water supply section 20 has a pipe line 2 connected to the cooling water tank 18.
3 below the opening of the jet pipe 24 which opens downward into two branch pipes 23 branched from 1.
It consists of a water sprinkler 28 having a porous diffusion plate 26 supported by book support rods 25, 25, 25. The cold water sprayed from the cold water supply section 20 is cooled by the cooling coil 16, and has a temperature that can cool the contaminated air below the dew point and does not freeze.

As shown in FIG. 3, the cooling collection unit 30 disposed on the lower upstream side of the cold water supply unit 20 includes a perforated plate 34 and a honeycomb core body 32 disposed on the lower surface of each perforated plate 34. It is formed by arranging one or more sets of collectors 36. In this case, the collectors 36, 36, 36 are arranged horizontally in the air purifier main body 10 at appropriate intervals from each other, and the honeycomb core body 32
may be a single layer honeycomb core material 38, but
Preferably, as shown in FIGS. 7 and 8, the honeycomb core material 38, 38 is formed of a plurality of honeycomb core materials 38, 38 whose through holes 33, 33 are offset from each other (the drawing shows the case of two sheets). good. The cooling collection section 30 configured in this manner includes the charging section 60
When air containing charged dust passes through,
The device collects dust by an electrostatic induction effect caused by a potential difference between the charging section 60 and the charging section 60.
For example, as shown in FIG. 3, by connecting the discharge electrode 68 of the charging section 60 to the anode side of a power source 61 that applies a negative polarity voltage, the efficiency can be improved. It has become effective at collecting dust.

The fine water droplet removal section 40 disposed above and downstream of the cold water supply section 20 is connected to the cooling collection section 30.
A honeycomb core body 42 similar to the honeycomb core body 32 constituting the honeycomb core body 32, and a first mist limitator 44 disposed in contact with the upper surface of the honeycomb core body 32.
and a second mist eliminator 46 disposed above and downstream of the first mist eliminator 44 at an appropriate interval.

Meanwhile, as shown in FIG. 2, the charging section 60 includes a discharge counter electrode 64 having a plurality of through holes 62, 62, . Pointed discharge needles 66, 66...
and a discharge electrode 68 protruding from the discharge electrode 68. By configuring the charging section 60 in this way, the indoor contaminated air sent to the air purifier main body 10 is rectified and dispersed by the through holes 62, 62..., and passes through with a uniform flow velocity. Therefore, the dust in the air is reliably charged by the discharge electrode 68 protruding from the center of each through hole 62, and the charging efficiency can be increased, and as a result, the collection efficiency can be increased. Further, a discharge station 6 in which a pointed discharge needle 66 is protruded from a discharge counter electrode 64 having a through hole 62 is provided.
Since it is only necessary to arrange the electrodes 8 facing each other, the discharge counter electrode 64 and the discharge electrode 68 can be easily positioned.
Since the structure is simple, manufacturing costs can be reduced. In this case, the discharge counter electrode 64 is formed of a metal plate such as an aluminum alloy or a resin substrate whose surface including at least the through holes 62 is coated with a conductive metal. Further, the discharge electrode 68 has a plate thickness of, for example, 0.1 to 0.3 mm, preferably 0.2 to 1.0 mm.
It is made of a strong conductive metal plate such as stainless steel, ordinary steel, copper, brass, or aluminum. In the charging section 60 configured as described above, the discharge electrode 68 is connected to the cathode of the power source 61, and the discharge counter electrode 64 is connected to the anode of the power source 61. When a voltage is applied to the discharge electrode 68 and the discharge counter electrode 64, , a corona discharge is generated between the two. In this case,
The discharge electrode 68 and the discharge counter electrode 64 may have opposite polarities to perform positive discharge. Such corona discharge is obtained by transforming and rectifying a general AC power supply (100V to 200V), with a DC voltage of -4.5KV to -5KV, and a discharge current per stitch of 2 to 5KV.
This can be done with a direct current of 20 μA.

Although water droplets from the cold water supply section 20 are applied to the charging section 60, the charging section 60 is connected to a charging section that connects the air purifier main body 10 and the inflow side pipe 11, as shown in FIGS. 4A and 4B. Part duct 11a
A discharge counter electrode 64 is supported in an insulated state by a rectangular frame 11b made of vinyl chloride disposed inside the rectangular frame 11, and a discharge counter electrode 68 supported at appropriate intervals via a spacer 11c and a support rod 11d is supported in a rectangular frame 11.
By constructing and attaching it to b, it is possible to prevent shoots. Moreover, in this case, since the applied voltage is low, it is safe. Note that it is better to wire the lead wire (not shown) to the power source 61 on the upstream side where there are no water droplets. In this case, it is desirable to make the distance 1 between the discharge electrode 68 and the air inlet 12 as narrow as possible. The reason for this is to prevent electrical discharge between particles and to prevent the charged dust particles from adhering to the inner wall of the duct before reaching the cooling collection section 30. In addition, the charging section 60
As another shot prevention structure, as shown in FIG. 4C, an insulator 11g is attached to the upper wall of the charging section duct 11a via a seal packing 11f made of silicone rubber or fluorine rubber.
It is also conceivable to hold the discharge counter electrode 64 and the discharge electrode 68 in a suspended state. In this case, a drying heater 11h is placed around the glass 11g.
is provided to prevent electrical leakage due to dew condensation on the surface of the glass 11g, or a dry air blowing nozzle (not shown) is provided. In addition, by providing the splash prevention baffle plate 11i on the upper part of the air inlet side of the air purifying device main body 10, it is possible to reduce the intrusion of droplets into the charging section 60.

Further, an outside air introduction pipe 13 is connected via a switching valve 74 to the upstream side of the blower fan 70 of the inflow side pipe 11 that connects the air inlet 12 of the air purifier main body 10 and the suction port 71 of the chamber 72. It is connected.

A flow meter 27 is disposed in the circulation pipe 21 connecting the cooling water tank 18 and the cold water supply section 20, and a branch pipe 23' branched from the circulation pipe 21 has the above-mentioned Cooling collection section 30
Auxiliary cold water supply section 20' located on the lower upstream side of
is connected. This auxiliary cold water supply section 20'
As shown in FIGS. 9 to 11, when the branch pipe 23' opens downward through an elbow pipe 29, there is a jet pipe 24 and two support rods on the opening side of the jet pipe 24. 25a, and a conical diffusion plate 26a supported by 25a. Note that the auxiliary cold water supply section 20' does not necessarily need to be provided.

Further, temperature/humidity sensors 51, 52, and 53 are arranged near the air inlet 12 and the cold water supply section 20 of the air purifier main body 10, and on the upper and downstream side of the fine water droplet removing section 40 on the air outlet side, respectively. Control commands are sent to the heat pump 80, circulation pump 22, etc. from a control device (not shown) that receives detection signals from these sensors 51, 52, and 53.

In the air purifier of the present invention configured as described above, when the blower fan 70 is driven and indoor contaminated air is sent into the air purifier main body 10, the dust and the like in the air is first transferred to the charged section. After being charged by 60, the air passes through the cooling collection section 30 in the air purifier main body 10 from the air inlet 12. At this time, part of the dust in the air is collected when passing through the holes 33 of the honeycomb core body 32 of the cooling collection unit 30, and the air that has passed through the honeycomb core body 32 is collected through the holes 33 of the porous plate 34. ,35...
At this time, the liquid is sprayed from the cold water supply section 20 and violently breaks the liquid film formed on the perforated plate 34, generating fine droplets and fine bubbles. As a result, as shown in FIG.
4, a dense droplet flow region 37 that closely resembles a fluidized bed of powder is formed with an appropriate thickness in balance with the air pressure loss. This droplet flow region 37 increases in thickness as the flow rate of contaminated air increases. Dust in contaminated air breaks down into dust particles when it breaks through the droplet film stretched over the holes 35, 35... of the perforated plate 34, and when it passes through the droplet flow area 37 formed on the perforated plate 34. Gas-liquid contact is effectively carried out by the inertial collision effect, diffusion effect, agglomeration effect, and electrostatic induction effect on the droplets, and dust is sufficiently transferred to the liquid side.

Among the droplets that the contaminated air jumps up on the perforated plate 34 of the collector 36, fine droplets are carried to the honeycomb core material 38 of the collector 36 above and wet the inner walls of the through holes 33 of the honeycomb core material 38. The droplet then returns to the lower perforated plate 34 again as a large droplet. Therefore, the dust in the contaminated air is removed and purified by the above-mentioned physical and electrostatic induction contact even on the inner wall of the through hole 33 of the honeycomb core material 38, which is difficult to do with the conventional wet dust collection method. It can collect fine dust of 0.5 to 0.1 μm. Then, the purified air is heated to a predetermined temperature (approximately 25° C.) and humidity controlled by the reheating coil 50, and then
sent to.

Next, a specific example of the use of the air purifying apparatus of the present invention constructed as described above in summer and winter will be described with reference to the psychrometric diagrams of FIGS. 12 and 13. That is, in the summer (FIG. 12), the air from the chamber 72 is mixed with outside air (temperature at the mixing point: T ₃ ), and then sent into the air purifier main body 10 and mixed with cold water from the cold water supply section 20. As a result, the temperature near the outlet of the second mist eliminator 46 is cooled to _T4 ,
The low-temperature saturated air is heated by the reheating coil 50 (temperature after heating: T ₅ ) in order to raise the blowing temperature of the chamber 72 to T ₂ and then supplied into the chamber 72 . The clean air supplied into the chamber 72 in this manner can be kept at an appropriate humidity (T ₂ ) and an appropriate temperature (40 to 60%) due to the addition of a thermal load.

In addition, in the case of winter (Fig. 13), the air from the room 72 is mixed with outside air (mixing point, temperature at the mixing point: T ₃ ), and then sent into the air purifier main body 10 and cooled water. The hot water from the supply section 20 (in winter, the portion equivalent to cold water) is supplied to the heat pump 8.
0 causes the cooling coil 16 to function as a condenser and heat it. ), the humidity near the outlet of the second mist eliminator 46 is humidified to near the saturation point (RH95-100%), and a heater (e.g., a heat transfer heater, a hot water heater) left separately from the heat pump 80 is used. , steam heater, etc.) 50' to the temperature at which it is blown into the chamber 72. The purified air thus supplied into the room 72 has an appropriate temperature ( _T2 ) and appropriate humidity (RH40~60).
%).

◎Second Invention Fig. 14 is a schematic sectional view showing a first embodiment of an air purifying device according to the second invention, and the air purifying device of this invention has a cooling water tank of the air purifying device of the first invention. This is a case where a sterilizing means is connected to the cooling water tank to sterilize the cold water inside. That is, the first
The supply side of an ozone sterilization tank 90, which is a sterilization treatment means, is connected through a pipe 91, and the discharge side of the ozone sterilization tank 90 is connected to the downstream side of the circulation pipe 21 via a second pipe 92. and an ozone aeration section 93 disposed within the ozone sterilization tank 90.
This is the case when an ozone generator 94 is connected to the In this case, the ozone generator 94 is a high voltage means 94a.
Ozone is now produced by the discharge action using

Note that in the second invention, other parts are the same as those in the first invention, so the same components are given the same reference numerals and the explanation thereof will be omitted.

With the above configuration, the cold water supplied from the cooling water tank 18 into the ozone sterilization tank 90 is sterilized by the ozone supplied from the ozone generator 94 to the ozone aeration section 93 and diffused. The sterilized cold water is then sprayed into the contaminated air from the cold water supply section 20 via the circulation pipe 21.

FIG. 15 is a schematic sectional view showing a second embodiment of the second invention, in which the cooling water tank 18 is used also as a sterilizing means. That is, two cooling/ozone sterilization water tanks 18a, 18 are connected to the lower part of the air purifier main body 10 via the circulation switching valve 21a.
b, each cooling and ozone sterilization water tank 18a,
An ozone aeration section 93 is provided in the ozone generator 9 through the ozone switching valve 95.
This is the case when 4 is connected. Further, an ozone decomposer 97 equipped with an electric heater 97a is connected to these cooling and ozone sterilization water tanks 18a and 18b via an ozone discharge switching valve 96. In addition,
In the cooling/ozone sterilization water tanks 18a, 18b, cooling/heating coils 16a, 16b are provided to cool or heat the water as needed, and a stirrer 9 is provided to stir the cold water in the water tanks 18a, 18b.
8,98 are arranged. Further, the ozone generator 94 is supplied with clean air from the air outlet 14 side of the air purifier main body 10 through an air flow path 99.

According to the air purifying device configured as described above, the circulation switching valve 21a is switched to connect one of the cooling and ozone sterilizing water tanks 18a to the air purifying device main body 10.
Since the other cooling ozone sterilization water tank 18b can be isolated from the air purifier main body 10, air purification and cold water sterilization can be performed continuously, and excess ozone can be removed from the ozone decomposer 9.
7, it can be completely disassembled and exhausted to the outside air. In this case, if the ozone from the ozone generator 94 is aerated to the cold water in the cooling/ozone sterilization water tank 18b, and the ozone concentration in the water is 0.5 ppm, and the heating temperature of the ozone decomposer 97 is approximately 400°C, the ozone concentration is 0.5 ppm. It can be sterilized in about 30 minutes, but leave it for about 10 hours after sterilization. In this case, ozone decomposition can be done by heating the inside of the cooling/ozone sterilization water tank 18b to 30 to 40°C with the cooling/heating coil 16a. It can save time. Further, when the cold water is heated, it is cooled to a predetermined temperature by the cooling/heating coil 16a when circulating to the cold water supply section 20. At this time, of course, the ozone generator 94 is stopped.

FIG. 16 shows a case where an ultraviolet lamp is used instead of the heating means of the cooling/heating coil 16a. That is, the cooling and ozone sterilization water tank 18a,
This is a case in which the heating coil is omitted by arranging four ultraviolet lamps 16b, 16b, . . . in 18b. In this case, the cooling coil 16 must be placed above the water tanks 18a, 18b, or within the water tanks 18a, 18b.

Figures 17 to 19 are schematic cross-sectional views and enlarged cross-sectional views of essential parts of a third embodiment of the second invention, in which cold water in a cooling water tank is sterilized by an ozone generator using a photochemical reaction. This is a case where processing is performed. That is, the bottom of the cooling water tank 18 is partitioned by the partition plate 101 so that a part thereof is communicated with the partitioned water tank lower part 100.
A plurality of titanium oxide irradiated objects 110, 110... arranged in a staggered manner inside the irradiated object 11
0,110...respectively adjacent irradiated objects 11
Light emitters 120 and 12 arranged between 0 and 110
This is a case in which an ozone generator 94 is formed with 0..., and the cold water contained in the cooling water tank 18 is supplied into the lower part 100 of the water tank and detoured while being sterilized by ozone generated by a photochemical reaction. . In this case, the irradiated object 110 is made by pasting a film 112 in which titanium oxide (T _i O ₂ ) is fixed to an acetylene film on a plate material 114 such as a transparent acrylic plate or a stainless steel plate, and is attached with a bracket 116 . Water tank lower part 10
It is designed to be fixed within 0 (see FIG. 19). Further, the light emitting body 120 has a structure in which a light source 122 such as a mercury lamp or an ultraviolet lamp is disposed inside a quartz tube 124, and is fixedly held by a support member 126 fixed to the lower part 100 of the aquarium ( (See Figure 19).

FIGS. 20 and 21 are a cross-sectional view and a perspective view of a main part of another embodiment of the third embodiment of the second invention, in which the irradiation position of the object to be irradiated can be moved and changed. That is, a plurality of irradiated objects 1 are arranged at intervals in the cooling water tank 18.
10, 110... are each connected to a pair of rollers 132,
134, and one roller 132 is driven by a drive motor 136 disposed outside the cooling water tank 18. In this case, the belt body 130 has a structure in which a film 112 in which titanium oxide (T _i O ₂ ) is fixed to an acetylene loin film is adhered to a belt base material, similar to the irradiated body 110 described above. It is formed into an endless shape by a fixing means 131 such as a band. Further, the drive pulley 136a of the drive motor 136 and the pulleys 132a, 132a, .

By configuring the ozone generator with the titanium oxide irradiated body 110 and the light emitting body 120 as described above, when titanium oxide 2TiO ₂ is irradiated with light, it becomes TiO ₂ +(O) through a photochemical reaction. The ozone (O) generated at this time sterilizes the cold water.

This can be inferred from the fact that, for example, it is well known that when light is irradiated in the presence of titanium oxide (TiO ₂ ), the following oxidation reaction occurs.

Hg→HgO CN ^- →CNO ^-In addition, in the third embodiment above, cooling water tank 1
In order to remove excess ozone in the 8, it is necessary to provide an ozone decomposer (not shown) as in the first and second embodiments.

FIG. 22 shows a fourth embodiment of the second invention, in which wastewater is continuously sterilized. That is, an ultraviolet sterilizer 94' is disposed in the ozone sterilization tank 90 connected to the first pipe line 91 and the second pipe line 92, and the ultraviolet ray sterilizer 94' flows into the ozone sterilization tank 90 from the first pipe line 91. This is a case where the waste water is sterilized by the ultraviolet sterilizer 94' and then continuously fed to the cold water supply section 20 from the second pipe line 92 so that it can be used as air purifying water.

The means to continuously sterilize this wastewater is
This can also be applied to the case of the third embodiment. That is, as shown in FIG. 22A, staggered detour parts 100', 100', 100' are formed in the lower part 100 of the cooling water tank 18 by partition plates 101', 101', and each detour part 100' By installing an ultraviolet light device 94' (ultraviolet light) inside,
After the wastewater contained in the lower part 100 of the cooling water tank 18 is continuously sterilized by the ultraviolet lamp 94', it is transferred to the cold water supply section 2 by the circulation pump 22.
It can be sent to 0.

[Effects of the Invention] As explained above, the air purifying device of the present invention includes a charging unit that charges dust, bacteria, etc. in the air to be cleaned, temperature controlled, and humidity controlled, and a charging unit that charges the air with cold water. A cold water supply unit that contacts fine mist, a cooling collection unit and a fine water droplet removal unit that collect cooled dust, and a reheating unit that controls the temperature and humidity of the purified air. The collecting body of the cooling collecting part is composed of a perforated plate and a honeycomb core body arranged on the lower surface of this perforated plate, and the charging part is composed of a discharge counter electrode with through holes and a discharge counter electrode with perforated holes. It consists of a pointed discharge needle located at the center, and the cooling collection part is energized to the opposite pole to the discharge electrode of the charging part.
The following effects can be obtained.

(1) Since the air cleaning equipment, heating unit, and other equipment are concentrated in one place, space can be used effectively and maintenance can be facilitated.

(2) Since dust collection, temperature control, humidity control, etc. are performed in one device, costs can be reduced, and deodorization and sterilization can also be easily performed.

(3) Dust in the air can be collected by the Coulomb force between dust in contaminated air, droplets, and liquid film, as well as inertial collision, diffusion, and condensation effects, making it possible to collect dust in the air using the conventional wet method. It is possible to efficiently collect fine particles of dust, which is difficult to do with dust collection methods.

(4) Since the dust in the air is charged and collected in the cooling collection section and the fine water droplet removal section, there is no risk of a reduction in air volume due to clogging, as is the case with ordinary filters, and the accumulated dust ( There is no risk of re-dispersal of bacteria (including bacteria).

(5) Since the cooling collection unit is a collection body composed of a perforated plate and a honeycomb core body disposed on the lower surface of the perforated plate, dust is not absorbed into the liquid film flowing down the inner wall of the cell of the honeycomb core body. etc. can be efficiently collected by contact, and the collection effect can be enhanced.

(6) Since the charging part is composed of a discharge counter electrode with a plurality of through holes and a discharge electrode with a plurality of pointed discharge needles located at the center of each through hole, it is possible to The contaminated air sent into the room is rectified and dispersed by the through holes, and passes through with a uniform flow velocity.The discharge electrode protruding from the center of each through hole ensures that dust in the air is removed. It is electrically charged, and the charging efficiency can be increased, and as a result, the collection efficiency can be increased. Further, positioning of the discharge counter electrode and the discharge electrode is easy, and the structure is simple.

(7) Since the cooling collection section is energized to the opposite polarity to the charged dust, the efficiency of collecting dust, etc. in the cooling collection section is high.

(8) Since there are no replacement or consumable parts, continuous operation is possible over a long period of time.

(9) The cooling collection section is sanitary because the growth of bacteria in the collected dust can be prevented.

(10) Since the cooled and purified wet air is heated by the reheating means, no mist is generated.

Further, according to the second invention, in order to further add means for sterilizing the cooling water supplied to the cold water supply section, in addition to the above (1) to (10), gas, chemicals, etc. for sterilization are added. There is no need to use it, and there is no risk that the inside of the device will be corroded by these sterilizing gases. Moreover, since the cold water is purified and sent to the cold water supply section of the main body of the apparatus, the air can be reliably purified, there is no risk of secondary contamination, and the apparatus is sanitary.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view showing an air purifying device according to a first aspect of the present invention, FIG. 2 is a cross-sectional perspective view of a charging section in this invention, and FIG. 3 is a schematic cross-sectional view showing a charging section and a cooling collection section in this invention. 4 is a sectional view showing the operating state of the cooling collection section in this invention, FIG. 4A is a front view showing the charging section in this invention, FIG. 4B is a side sectional view thereof, and FIG. 4C is a charging section. 5 is a plan view of the cold water supply section in the present invention, FIG. 6 is a side view thereof, and FIG. 7 is a plan view of essential parts of the fine water droplet removal section in the present invention. FIG. 8 is a side view showing a part of it in cross section, FIG. 9 is a plan view of the auxiliary cold water supply section in this invention, FIGS. 10 and 11 are a side view and an enlarged view of the main part of FIG. 9, respectively. Figs. 12 and 13 are psychrometric diagrams showing the conditions in summer and winter when the air purifying device of this invention is operated, and Fig. 14 is a first embodiment of the air purifying device of the second invention of this invention. 15 is a schematic sectional view showing a second embodiment of the second invention, FIG. 16 is a sectional view of main parts showing another form of the third embodiment, and FIG. 17 is a schematic sectional view showing a second embodiment of the second invention. FIG. 18 and FIG. 19 are a schematic cross-sectional view showing a third embodiment of the invention, respectively. FIG. 18 and FIG. 21 is a perspective view of the irradiated object which is the main part thereof, FIG. 22 is a schematic sectional view showing the fourth embodiment of the second invention, and FIG. 22A is a diagram of the fourth embodiment. Schematic sectional view showing another form, Fig. 23 and Fig. 2
FIG. 4 is a schematic sectional view showing another structure of a conventional wet air cleaning device. Explanation of symbols, 10... Air purifier main body, 12...
...Air inlet, 14...Air outlet, 16...Cooling coil (temperature adjustment means), 16a...Cooling/heating coil (temperature adjustment means) 16b...Ultraviolet lamp,
18... Cooling water tank, 18a, 18b... Cooling and ozone sterilization water tank, 20... Cold water supply section, 30... Cold water collection section, 32... Honeycomb core body, 34... Porous plate, 36... Collection body , 38... honeycomb core material, 40... fine water droplet removal section, 50... reheating coil (reheating means), 60... charging section, 62... through hole,
64... Discharge counter electrode, 66... Pointed discharge needle, 68
...Discharge electrode, 70...Blower fan (air blowing means),
90...Ozone sterilization tank (sterilization means), 93...Ozone aeration section, 94...Ozone generation section, 94'...
Ultraviolet sterilizer, 110... Irradiated object, 120...
…Luminous body.

Claims (1)

[Scope of Claims] 1. A cooling water tank containing water whose temperature is adjusted by a temperature adjustment means in the lower part or separately, and an air inlet is opened on the side of the upper part, and an air outlet is opened in the upper part. a cylindrical air purifier main body; a cold water supply section disposed in the middle between the air inlet and air outlet in the air purifier main body; and a cold water supply section disposed horizontally below and upstream of the cold water supply section. a cooling collection section provided therein, a fine water droplet removing section and a reheating means arranged sequentially toward the upper downstream side of the cold water supply section, and a charging section provided upstream of the air inflow port; , connected to the inlet of the chamber via an air blowing means, and connected the air outlet to the outlet of the chamber, and the cooling collection section is arranged on a perforated plate and a lower surface of the perforated plate. one or more sets of collecting bodies, each consisting of a honeycomb core body in which the charging section has a plurality of through holes, a discharge counter electrode having a plurality of through holes, and a plurality of tips located at the center of each of the through holes; 1. A wet air purifying device comprising a discharge electrode having a discharge needle projecting therefrom, and wherein the cooling collecting section is energized to a pole opposite to the discharge electrode of the charging section. 2. The wet air purifying device according to claim 1, wherein the temperature adjustment means is a cooling coil disposed above or inside the cooling water tank. 3. The wet air purifying device according to claim 1, wherein the honeycomb core body is composed of a plurality of laminated honeycomb core materials whose through holes are offset from each other. 4. A cylindrical air purifier which is provided with a cooling water tank containing water whose temperature is adjusted by a temperature adjustment means at the bottom or separately, and which has an air inlet at the side of the upper part and an air outlet at the top. A device main body, a cold water supply section disposed between an air inlet and an air outlet in the air purifying device main body, and a cooling collection disposed horizontally below and upstream of the cold water supply section. a part, a fine water droplet removing part and a reheating means which are sequentially disposed toward the upper downstream side of the cold water supply part, and a sterilizing means for sterilizing the cooling water in the cooling water tank, and the air inlet A charging section is provided on the upstream side of the chamber, and the charging section is connected to the inlet of the chamber via a blowing means, and the air outlet is connected to the outlet of the chamber, and the cooling collection section is connected to the perforated plate; A honeycomb core body disposed on the lower surface of the perforated plate is one or more sets of collectors, and the charging section is a discharge counter electrode having a plurality of through holes, and each of the through holes. and a discharge electrode protruding from a plurality of pointed discharge needles located at the center of the charging section, and the cooling collection section is energized to a pole opposite to the discharge electrode of the charging section. A wet air purification device. 5. The wet air purifying device according to claim 4, wherein the temperature adjusting means is a cooling coil disposed above or inside the cooling water tank. 6. The wet air purifying device according to claim 4, wherein the honeycomb core body is composed of a plurality of laminated honeycomb core materials whose through holes are offset from each other. 7. Claim 4, in which the sterilization means comprises an ozone aeration section disposed within the cooling water tank or a water tank connected to the cooling water tank, and an ozone generator that supplies ozone air to the ozone aeration section. Wet air purifier as described in section. 8. The sterilization means is an ozone generator consisting of a titanium oxide irradiated object disposed in a cooling water tank or a water tank connected to the cooling water tank, and a light emitter that irradiates the irradiated object with light. A wet air cleaning device according to claim 4. 9. An ozone aeration section in which the sterilization means is arranged in a cooling water tank or in a water tank connected to the cooling water tank, an ozone generator that supplies ozone air to this ozone aeration section, and an ozone generator arranged in the cooling water tank or in the water tank. The wet air cleaning device according to claim 4, comprising an ozone decomposition section. 10. An ozone generator in which the sterilization means is composed of a titanium oxide irradiated body disposed in a cooling water tank or a water tank connected to the cooling water tank, and a light emitter that irradiates the irradiated body with light; 5. The wet air purifying device according to claim 4, further comprising: the cooling water tank or an ozone decomposition unit disposed within the water tank. 11. The wet air cleaning device according to claim 9 or 10, wherein the ozone decomposition unit is a heating coil. 12. The wet air cleaning device according to claim 9 or 10, wherein the ozone decomposition part is a light emitter. 13. The wet air purifying device according to claim 4, wherein the sterilizing means is an ultraviolet sterilizer disposed in a cooling water tank or in a water tank connected to the cooling water tank.