JP2008190753A - Air conditioner and pure water production system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner and a pure water production system, which reduce a concentration of TOC (Total Organic Carbon) dissolved in drips or condensed water. <P>SOLUTION: An ultraviolet lamp 34a to irradiate ultraviolet light for decomposing organic carbon in an aqueous solution, that is, the TOC, is arranged in a water storage tank 34 for storing water circulating in the air conditioner. Further, for generating microbubbles or micronanobubbles in water in the water storage tank 34, a microbubble generator 34b is arranged in a position in close proximity to the ultraviolet lamp 34a. Since the microbubble generator 34b generates the microbubbles or micronanobubbles in the water in the water storage tank 34, oxidative decomposition of the TOC by the ultraviolet lamp 34a is accelerated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a system for reusing drain water discharged from an air conditioner, and relates to an air conditioner and a pure water production system for reducing the TOC concentration caused by water-soluble organic substances dissolved in dripped water or condensed water. .

  In recent years, in the manufacturing process of semiconductor devices and the like that have been miniaturized, it is necessary to control molecular contaminants (AMC) contained in the air, such as installing chemical filters. Countermeasures are implemented.

  Further, as one of AMC measures, an air conditioner equipped with a water film that can simultaneously adjust temperature and humidity and remove impurities contained in the processing air is used. As an air conditioner provided with such a water film, for example, the one described in Patent Document 1 is known, and a gas impurity removal system is configured as shown in FIG. FIG. 10 is a simplified representation of the invention of Patent Document 1.

  That is, a pre-filter 1, a medium performance filter 2, a heating coil 3, a cooling coil 4, a gas impurity removing device 10, and a blower 5 are sequentially provided in a chamber (not shown) having a processing air intake port and a supply port. Is provided.

  The gas impurity removing apparatus 10 includes first to fourth water films 11 to 14 provided in a plurality of stages (here, four stages) along the air blowing direction. Liquid (pure water) is dropped onto the water film from above. That is, a liquid is dropped onto the fourth water film 14 disposed on the most downstream side via a pure water supply line 20 provided with a flow rate adjusting valve 19, and the dropped water is supplied to the first to fourth water films 11. Are stored in the water film tank 21 disposed at the lower part of -14 and are circulated and supplied from the water film tank 21 to the upper part of the upstream water films 13, 12, 11 by the pumps 15-17. And after supplying a liquid to the 1st water film 11, the drainage is comprised by the overflow system via the drain pipe 18.

  On the other hand, the air to be processed introduced from the inlet into the chamber is supplied to the gas impurity removing device 10 through the prefilter 1, the medium performance filter 2, the heating coil 3 and the cooling coil 4. . Then, the air to be treated comes into contact with the first to fourth water films 11 to 14 in the gas impurity removing device 10, and the gas impurities contained in the air are removed by the gas diffusion movement. .

In this case, the air to be treated first comes into contact with the first water film 11, where gas impurities are removed to some extent. Finally, since it comes into contact with the fourth water film 14 to which clean pure water is supplied, water-soluble gas impurities are removed very efficiently.
JP 2004-216296 A

  By the way, the AMC wet removal system as described above and other energy-saving external air conditioners are often provided with a circulation system that reuses drained drain water as part of pure production raw water. Here, when the discharged drain water is reused, the total organic carbon (TOC) concentration in the drain water is high, which damages the water film in the gas impurity removal apparatus. Is a problem. That is, since the TOC concentration in the water dropped onto the water film in a plurality of stages is high, the adsorption ability of the water film is lowered, and the removal efficiency of AMC is remarkably lowered. Further, since this water film also functions as a material for vaporization type humidification, there is a possibility that the TOC has an influence on the material, and there are cases where the predetermined humidification ability cannot be exhibited.

  The present invention has been proposed in order to solve the above problems, and its purpose is to reduce the TOC concentration caused by a water-soluble organic substance dissolved in dripping water or condensed water, and a pure water production system. Is to provide.

  The invention according to claim 1 is an air conditioner having a water circulation system used for temperature / humidity adjustment or purification, wherein the circulation system includes a water storage tank for storing water to be circulated, and the water storage tank has a storage tank. A microbubble generator that generates microbubbles or micronanobubbles in the moisture, and a UV lamp that irradiates the stored water with ultraviolet rays are provided.

  In the above aspects, since UV light is irradiated to water containing microbubbles or micronanobubbles by the UV lamp, oxidative decomposition of TOC is promoted, and the TOC concentration in the water storage tank decreases. Therefore, it is possible to reduce the damage caused by the TOC given to the water film used for temperature and humidity adjustment and purification action in the air conditioner and the material for vaporizing humidification.

  According to a second aspect of the present invention, in the air conditioner according to the first aspect, the UV lamp is installed in the vicinity of the fine bubble generator in the water tank.

  In the above aspect, since the UV lamp is close to the fine bubble generator installed in the water storage, it becomes possible to directly irradiate the moisture containing microbubbles or micronanobubbles with UV light. Therefore, oxidative decomposition of TOC is promoted, and the TOC concentration can be efficiently reduced.

  According to a third aspect of the present invention, in the air conditioner according to the first or second aspect, an air supply line for supplying air that is a generation source of micro bubbles or micro nano bubbles is connected to the fine bubble generator, The air supply line includes at least one of a particle removal filter, a cation removal filter, an anion removal filter, and an organic substance removal filter.

  In the above aspect, since the air supplied to the fine bubble generator can be purified, particles or molecular contaminants contained in the air can be obtained by using outside air as a supply source to the bubble generator. Can be solved. In other words, if bubbles containing pollutants are supplied into the water tank, the bubbles flow through the circulation system, which increases the risk of pollutants being released to consumers, as well as in the air and liquid. The concentration gradient in the middle becomes small, and there is a possibility that the removal rate of the molecular contaminants due to the water film or the like is lowered. Therefore, according to the above aspect, the problem is solved by removing the air supplied to the fine bubble generator using a particle removal filter or the like and purifying the air.

  The invention according to claim 4 is the air conditioner according to claim 3, further comprising a water film used for at least one of temperature and humidity adjustment and air purification, and air supplied to the air supply line passes through the water film. It is characterized by air.

  The invention according to claim 5 is the air conditioner according to claim 3, further comprising a chemical filter for removing contaminants downstream of the water film, and the air supplied to the air supply line has passed through the chemical filter. It is air.

  In the above aspect, since contaminants in the air flowing through the air supply line and supplying to the fine bubble generator are removed, the lifetime of the cation removal filter and the anion removal filter installed in the air supply line is extended. Is possible. Further, when the purity of the air supplied to the air supply line is high, it is not necessary to install a cation removal filter and an anion removal filter, so that the initial cost can be reduced.

  The invention according to claim 6 is the air conditioner according to claim 1 or 2, wherein the UV lamp constantly irradiates the water stored in the water tank with ultraviolet rays.

  In the above embodiments, water containing microbubbles or micronanobubbles can always be irradiated with UV light, so that oxidative decomposition by UV light is promoted and the concentration of TOC can be reduced.

  The invention according to claim 7 is the air conditioner according to claim 1 or 2, wherein the UV lamp intermittently irradiates the water stored in the water tank with ultraviolet rays.

  In the above embodiment, the effect of reducing the TOC concentration obtained by the UV lamp irradiating the water in the water tank with UV light is usually exhibited by always irradiating UV light. In addition, it is possible to provide an air conditioner that reduces energy by intermittent irradiation with UV light and enables energy saving.

  The invention according to claim 8 is the air conditioner according to claim 1 or 2, wherein the circulation system includes a pump for circulating water, and the UV lamp is used for water stored in the water storage tank. On the other hand, ultraviolet rays are irradiated in conjunction with the operation of the pump.

  In the above aspect, by irradiating UV light in conjunction with the operation of the pump used to circulate the water in the air conditioner, wasteful power in a state where the air conditioner is not used is reduced, Energy saving can be achieved. Specifically, UV light is irradiated when a pump that is a power source of water discharged from the water storage tank and circulated in the air conditioner is driven, and UV light irradiation is stopped when the pump is stopped. .

  The invention according to claim 9 is the air conditioner according to claim 1 or 2, wherein the circulation system includes a TOC meter that measures a TOC concentration of flowing water, and the UV lamp is stored in the water tank. The water is irradiated with ultraviolet rays based on the TOC concentration measured by the TOC meter.

  The invention according to claim 10 is the air conditioner according to claim 9, wherein the TOC meter is installed in the water tank in the circulation system.

  In the above aspect, since the start / stop of the UV lamp can be adjusted based on the TOC concentration measured by the TOC meter, the life of the UV lamp can be extended and energy saving can be achieved. Become. Specifically, when the measured TOC concentration in the water storage tank is high, the UV light is irradiated to the water stored through the UV lamp, and when the measured TOC concentration is low, the irradiation of the UV lamp is stopped.

  The invention according to claim 11 is the air conditioner according to any one of claims 1 to 10, wherein the water storage tank of the circulation system is provided with an ozone generator for generating ozone. To do.

  In the above aspects, ozone can be generated in the water containing the microbubbles or micronanobubbles generated by the fine bubble generator, so that the bubbles dramatically improve the sterilizing effect of ozone. Further, since microbubbles and micronanobubbles have a self-pressurizing effect, even if ozone having a low concentration is supplied, ozone acts under conditions of high pressure during operation. Therefore, since the high-pressure ozone and the adsorbing substance act, it becomes possible to decompose the pollutant even at a low ozone concentration. Furthermore, since the ozone concentration can be increased by the ozone generator, it is possible to reduce the load of ozone generation treatment by UV light and to improve the efficiency of the TOC decomposition action.

  The invention according to claim 12 is an air conditioner having a water circulation system used for temperature / humidity adjustment or purification, wherein the circulation system includes a water storage tank for storing water to be circulated, and the water storage tank has a storage tank. A microbubble generator that generates microbubbles or micronanobubbles in the moisture, and an ozone generator that generates ozone are provided.

  In the above aspect, similarly to the invention according to claim 11, ozone can be generated in water containing microbubbles or micronanobubbles generated by the fine bubble generator. Improve dramatically. In addition, since the bubble has a self-pressurizing effect, even if ozone with a low concentration is supplied, a substance that adsorbs ozone under a high pressure condition is created during operation, and the pollutant can be decomposed even at a low ozone concentration. Is possible.

  The invention which concerns on Claim 12 is a pure water manufacturing system provided with the water storage tank which stores water, and the pure water manufacturing apparatus which produces | generates pure water from the water stored in the said water storage tank, In the said water storage tank, A microbubble generator for generating microbubbles or micronanobubbles in the stored water, and a UV lamp for irradiating the stored water with ultraviolet rays are provided.

  In the above aspect, not only an air conditioner but also a system that simply manufactures pure water can irradiate water containing microbubbles or micronanobubbles in a water tank with UV light using a UV lamp. Therefore, the oxidative decomposition of TOC in the stored water is promoted, and the TOC concentration in the water storage tank decreases. Thereby, it becomes possible to reduce the damage given to the water film etc. in a pure water manufacturing apparatus.

  According to the present invention, oxidative decomposition of TOC using a UV lamp is promoted by microbubbles or micronanobubbles, and the TOC concentration in the water storage tank can be reduced. As a result, damage to the water film and vaporizing humidification material used for temperature and humidity adjustment and purification in the air conditioner can be reduced, and degradation of AMC removal performance and humidification performance can be prevented. It becomes.

[1. Embodiment of the Invention]
Hereinafter, as an example of an embodiment of the present invention, an air conditioner provided with a water film capable of adjusting temperature and humidity and removing impurities as described in the prior art will be specifically described with reference to the drawings. Also, the same members as those in the prior art shown in FIG.

  In this embodiment, an air conditioner having a water film that can remove AMC as a contaminant and also humidify is provided. However, the present invention is not limited to this, and the AMC removing action is provided. A vaporizing humidifying or dehumidifying material that does not have may be used, and an embodiment in which a water film and a vaporizing humidifying or dehumidifying material are used in combination is also included.

  That is, the feature of the present invention is not in the configuration used for temperature and humidity adjustment or purification, which is a material for vaporizing humidification such as a heat exchange coil and a water film of an air conditioner, but a heat exchange coil and a water film. The purpose is to reduce the TOC concentration contained in the water of dripping water or condensed water dripping from above the vaporizing humidifying material. Therefore, regarding the configuration of the air conditioner described below, the means used for temperature and humidity adjustment and purification are almost the same as the conventional type, and inside and around the water tank installed as part of the circulation system for circulating water in the air conditioner. The structure has technical characteristics.

[1.1. Constitution]
(1) Overall Configuration Example FIG. 1 is a schematic diagram showing an overall configuration of an air conditioner having a drain water circulation system according to the present invention, taking the air conditioner having a water film described as the prior art as an example.
In the air conditioner of the present embodiment, a water film tank 21 is disposed below the first water film 11 to the fourth water film 14 as in the prior art of FIG. The water tank 21 is also provided with pumps 15 to 17 for circulatingly supplying the dropped water. In addition, the drain pan is provided in the lower part of the cooling coil 4, and the dripping water from the water film tank 21 is circulated and supplied to the coil, or the dripping water is directly supplied to the cooling coil 4 from the pure water supply line 20. It may be configured as described above.

  The water film tank 21 is provided with a water level sensor 31 for detecting the water level in the water tank, and a drainage pump 32 is attached to the drain pipe 18, and a predetermined amount of drain water is stored in the water tank by the water level sensor 31. 34 is controlled to be discharged. The water tank 34 is provided with a water level sensor 33 that detects the water level in the water tank 34, and the water level sensor 33 controls a supply regulating valve 35 that is installed so that tap water is supplied.

  The water storage tank 34 for storing the drain water is connected to a pure water production apparatus 37 and supplied to the pure water production apparatus 37 via a constant pressure pump 36 installed in a drain water drain pipe in the water storage tank 34. Is done. That is, the drain water discharged from the water film water tank 21 is stored in the water storage tank 34, and the stored drain water is sucked through the constant pressure pump 36 and supplied to the pure water production apparatus 37. Is generated and dropped from the pure supply line 20 to the fourth water film 14 so that the circulation system is configured.

  A pre-filter 1, a medium-performance filter 2, a heating coil 3, a cooling coil 4, a gas impurity removing device 10, and a blower 5 are sequentially provided in a chamber (not shown) having a processing air intake port and a supply port. The point provided is the same as that of the prior art shown in FIG.

  Further, the gas impurity removing device 10 is also similar to the prior art, and includes the first water film 11 to the fourth water film 14 provided in a plurality of stages (here, four stages) along the blowing direction. The water film of each stage is configured so that water is dropped from above. Here, as means for dropping the liquid onto the water film at each stage, a pure supply regulating valve is provided to the fourth water film 14 disposed at the most downstream of the first to fourth water films 11 to 14. Pure water is dropped through a pure water supply line 20 provided with 19, and the dropped water is stored in a water film water tank 21 disposed below the first to fourth water films 11 to 14, and the pump 15 ˜17, the water film tank 21 is sequentially supplied to the upper part of the upstream water films 13, 12, and 11.

(2) Configuration Example of Water Tank Next, the water tank 34 and the structure around the water tank 34, which are technical features of the present invention, will be described with reference to FIG. First, in the water storage tank 34, a UV lamp 34a for irradiating UV light is disposed in order to decompose organic carbon in the aqueous solution, that is, TOC. The UV lamp 34a is, for example, a low-pressure mercury lamp that emits wavelengths of 185 nm and 254 nm having high irradiation energy. In addition, the installation place of this UV lamp 34a is not limited to the inside of the water storage tank 34, The installation position like FIG.

  For example, in addition to installing a general handheld UV lamp 34a in the water tank 34, as shown in FIG. 3, the line-type UV lamp 34a is in the middle of a drain pipe for supplying water from the water tank 34 to the pure water production apparatus 37. It is also possible to install in the above. As shown in FIG. 4, in order to generate micro bubbles or micro nano bubbles, which will be described later, a circulation line for circulating water in the water storage tank 34 and a constant pressure pump are separately installed, and a line type UV lamp 34a is installed on the circulation line. It is good also as a structure which arranged. That is, by disposing the UV lamp 34a in the water circulation system around the water storage tank 34, the TOC in the water is decomposed, so that damage to the water film is suppressed.

  Further, as shown in FIG. 2, a fine bubble generator 34b is installed in the water tank 34 in addition to the UV lamp 34a. The microbubble generator 34b generates microbubbles or micronanobubbles using water in the water storage tank 34, and this makes it possible to promote oxidative decomposition of TOC by the UV lamp 34a. Here, the microbubble means a fine bubble having a bubble diameter of mainly 10 Mm to several tens of Mm at the time of generation, and the micro-nanobubble means a bubble having a nanosize (nm). .

  In this embodiment, as a means for generating microbubbles or micronanobubbles, an ultra-high-speed swirling method that generates bubbles by swirling water and air at an ultra-high speed is used. It is also possible to adopt a law or the like, and the present invention is not limited to this.

  Here, the ultra-high-speed swirling method used by the present invention means that a swirling gas cavity is formed by swirling the inside of the fine bubble generator 34b at an ultra-high speed, and the swirling gas cavity is formed inside the generator. Micro bubbles or micro nano bubbles are generated by cutting due to the difference in the turning speed generated in the vicinity of the exit. In order to generate this bubble, air is self-primed through the air supply line 22 connected to the bubble generator 34b, and water is circulated by a pump used as power (FIGS. 2 to 4).

  The microbubble generator 34b is disposed in the vicinity of the UV lamp 34a so that the generated microbubbles or micronanobubbles are in direct contact with the UV light emitted from the UV lamp 34a. Of course, the structure which installed UV lamp 34a in the microbubble generator 34b vicinity in the water storage tank 34 is also included.

(3) TOC decomposition principle Next, the TOC decomposition principle by the UV lamp 34a will be described. For the oxidative decomposition of TOC, the dissociation energy is 271 kJ / mol (CO—O) to 532 kJ / mol for a normal single bond. Here, when the energy of the irradiated UV light is higher than the binding energy of the organic compound, that is, when it is higher than the dissociation energy, there is a high possibility that the molecular bond is broken.

  Therefore, since the irradiation energy increases as the wavelength becomes shorter, UV light having wavelengths of 185 nm and 254 nm having energy of 647 kJ / mol at 185 nm and 471 kJ / mol at 254 nm is effective for oxidative decomposition of TOC. That is, by irradiating water with UV light having a wavelength of 185 nm, oxygen is decomposed and ozone is generated. And ozone is decomposed | disassembled by utilizing UV light with a wavelength of 254 nm, and the hydroxy radical which is high energy active oxygen is produced | generated. Thereby, the produced | generated hydroxyl radical reacts with an organic compound, causes TOC decomposition | disassembly, and reduces the TOC density | concentration in a water | moisture content. The specific chemical reaction formula is as follows.

[Equation 1]

[1.2. Action]
The external air conditioner of this embodiment having the above-described configuration operates as follows.
First, pure water is always supplied to the fourth water film 14 via the pure water supply line 20, and the dropped water is placed in the lower part of the first to fourth water films 11 to 14. And is supplied from the water film tank 21 to the upper part of the upstream water films 13, 12, 11 by the pumps 15-17. Depending on the configuration, it is also possible to supply dripping water to the cooling coil 4. The drain water supplied to the first water film 11 and stored in the water film water tank 21 is discharged to the water storage tank 34 through the drain pipe 18 and supplied to the pure water production apparatus 37. Therefore, pure water is generated by the pure water production apparatus 37, and the pure water is circulated in the air conditioner by being supplied to the water film via the pure water supply line 20.

  On the other hand, the air to be processed introduced from the inlet into the chamber is supplied to the gas impurity removing device 10 through the prefilter 1, the medium performance filter 2, the heating coil 3 and the cooling coil 4. . Then, the air to be treated comes into contact with the first to fourth water films 11 to 14 in the gas impurity removing device 10, and the gas impurities contained in the air are removed by the gas diffusion movement. .

  Here, a TOC using a UV lamp 34a and a micro / nano bubble 34b in a water storage tank 34 which is a supply source of pure water dripped onto the fourth water film 14 via the pure water supply line 20 and stores drain water. The decomposition action will be described with reference to FIG.

  First, the fine bubble generator 34b sucks air through the air supply line 22 and circulates water with a pump to generate microbubbles or micronanobubbles in the water storage tank 34. Then, the UV lamp 34a adjacent to the microbubble generator 34b irradiates the water in the water storage tank 34 containing microbubbles or micronanobubbles with UV light, and oxidizes and decomposes TOC contained in the water, thereby Reduce the TOC concentration inside.

  Specifically, ozone is generated by decomposing oxygen with UV light having a wavelength of 185 nm, and ozone generated by irradiating with UV light having a wavelength of 254 nm is decomposed. Thereby, the hydroxy radical which is high energy active oxygen can be produced | generated. Therefore, this hydroxy radical reacts with an organic compound, causes TOC decomposition, and reduces the TOC concentration in moisture.

  As shown in FIG. 3, when the line-type UV lamp 34a is installed in the middle of the drain pipe connected from the water storage tank 34 to the pure water production apparatus 37, micro bubbles or micro nano bubbles generated by the fine bubble generator 34b. Is drained by a constant pressure pump 36 and irradiated with UV light from a UV lamp 34 a in a drain pipe in the middle of being supplied to a pure water production apparatus 37. Therefore, oxidative decomposition of TOC in the drain water containing the bubble is promoted, and the TOC concentration in moisture can be reduced.

  Further, as shown in FIG. 4, when the line-type UV lamp 34a is installed in the middle of the drain pipe for circulating the water in the water storage tank 34 to the fine bubble generator 34b, it operates as follows. That is, the line-type UV lamp 34a irradiates the drain water circulated from the water storage tank 34 by the bubble generating pump, and thereby oxidizes and decomposes the TOC in the moisture. Thereafter, microbubbles or micronanobubbles are generated from the fine bubble generator 34 b in the water with the reduced TOC concentration, and are sent into the water storage tank 34.

  According to the present embodiment based on FIGS. 2 to 4 as described above, oxidative decomposition of TOC using the UV lamp 34 a is promoted by microbubbles or micronanobubbles, and the TOC concentration in the water storage tank 34 is reduced. It becomes possible. Thereby, the damage given to the water film used for the temperature / humidity adjustment and purification action in the air conditioner and the material for vaporization type humidification can be reduced, and the decrease in the removal performance and humidification performance of AMC can be prevented. .

[2. Other Embodiments]
(A) The present invention is not limited to the above-described embodiment. In order to increase the ozone concentration in the water storage tank 34 and efficiently perform oxidative decomposition of TOC by UV light, the following ozone generator An embodiment in which 34c is installed in the water storage tank 34 is also included (FIG. 5).

  The ozone generator 34c mainly uses a silent discharge method in which an alternating high voltage is passed between two electrodes, and oxygen is ozonized by the energy of ions in the discharge plasma by allowing air to pass between the electrodes. This method also uses this method, but is not particularly limited, and a chemical generation method, an electrolysis method, or the like can also be used.

  As shown in FIG. 5, the ozone generator 34c is installed in the air supply line 22 connected to the fine bubble generator 34b, and contains ozone generated by the ozone generator 34c in microbubbles or micronano bubbles. Yes. Therefore, the bubble can dramatically increase the bactericidal effect of ozone and inactivate bacteria in water.

  Further, since microbubbles and micronanobubbles have a self-pressurizing effect, even if ozone having a low concentration is supplied, ozone acts under conditions of high pressure during operation. In other words, since the high-pressure ozone and the adsorbing substance act, the pollutant can be decomposed even at a low ozone concentration. Moreover, since the ozone concentration in the water storage tank 34 can be increased by the ozone generator 34c, it is possible to reduce the addition of ozone generation processing by UV light, and to efficiently generate hydroxy radicals. In addition, the installation position of the ozone generator 34c is not limited to the aspect installed in the air supply line 22 connected to the fine bubble generator 34b as shown in FIG. 5 as long as ozone can be generated in the water tank 34.

  In the present embodiment, the UV lamp 34a is provided in the water storage tank 34. However, the present invention is not limited to this. The UV lamp 34a is not provided, and the fine bubble generator 34b and the generation are generated in the water storage tank 34. The present invention also includes an embodiment in which an ozone generator 34c is installed in the air supply line 22 connected to the generator 34b. In other words, it does not have the function of decomposing TOC by UV light emitted from the UV lamp, and the addition of ozone generation processing by UV light cannot be reduced, but as shown in FIG. 6, the ozone generated in the ozone generator 34c is reduced. The contained microbubbles or micronanobubbles dramatically improve the bactericidal effect of ozone and inactivate bacteria in the water.

(B) Moreover, this invention is not limited to the said embodiment, As FIG. 7 shows, the particle | grain removal filter, the cation removal filter, the anion removal filter in the air supply line 22 connected to the fine bubble generator 34b, Embodiments including at least one of the organic substance removal filters are also included.

  That is, in order to purify the air supplied to the fine bubble generator 34b, a particle removal filter 23, a cation removal filter 24, an anion removal filter 25, and an organic substance removal filter 26 are installed in the middle of the air supply line 22. Specifically, by providing the particle removal filter 23 and the organic substance removal filter 26, it becomes possible to remove particles and molecular contaminants in the outside air that are the supply source to the fine bubble generator 34b. The problem that the pollutant is supplied into the water storage tank 34 can be solved.

  In addition to removing particles and molecular contaminants, the cation removal filter 24 and the anion removal filter 25 are provided in the air supply line 22, so that cations (cations) and anions (anions) present in the outside air are provided. ) Can be removed by adsorption. That is, the problem that bubbles containing pollutants are supplied into the water tank 34 is eliminated by removing ions that cause air contamination.

  In this embodiment, the fine bubble generator 34b installed in the embodiments of FIGS. 2 to 6 also includes a particle removal filter, a cation removal filter, and an anion in the air supply line 22 connected to the generator 34b. A configuration including at least one of a removal filter and an organic substance removal filter is included.

  Further, in FIG. 8, a chemical filter 27 for removing contaminants is provided downstream of the water film 14, and the air to be treated that has passed through the water film 14 passes through the chemical filter 27 and a part of the air that has passed through the filter 27. Is supplied to the fine bubble generator 34b using a pump or the like (not shown) as a power source. That is, when the air that has passed through the chemical filter 27 is supplied to the air supply line 22, the fine bubble generator 34 b self-sucks the air and generates microbubbles or micronanobubbles in the water storage tank 34. The present invention also includes an embodiment in which a part of the air that has passed through the water films 11 to 14 is supplied to the air supply line 22 without providing the chemical filter 27.

  With this configuration, contaminants in the air that flows through the air supply line 22 and is supplied to the fine bubble generator 34b are removed, so that the lifetimes of the cation removal filter 24 and the anion removal filter 25 installed in the air supply line 22 are increased. It can be extended. In addition, when the purity of the air that has passed through the chemical filter 27 supplied to the air supply line 22 is high, the installation of the cation removal filter 24 and the anion removal filter 25 becomes unnecessary, so that the initial cost can be reduced. Can do.

(C) Further, in the present invention, the UV light irradiation method using the UV lamp 34a is normally performed by constantly irradiating UV light to moisture including micro-nano bubbles. A mode for the purpose of energy saving such as irradiation in conjunction with a constant pressure pump 36 used for supplying drain water to the pure water production apparatus 37 is also included.

  That is, the effect of reducing the TOC concentration obtained by the UV lamp 34a irradiating the water in the water storage tank 34 with UV light is usually exhibited by always irradiating UV light. Power can be reduced and energy can be saved by intermittent irradiation. In addition, by irradiating UV light in conjunction with the operation of the constant pressure pump 36 used to circulate the water in the air conditioner, wasteful power in the state where the air conditioner is not used is reduced, and energy saving is achieved. realizable.

  That is, in the method of adjusting the irradiation of the UV light from the UV lamp 34a in conjunction with the operation of the constant pressure pump 36, the constant pressure pump 36 that is specifically discharged from the water storage tank 34 and serves as a power source for water circulating in the air conditioner. During the driving, UV light is irradiated, and UV light irradiation is also stopped when the pump 36 is stopped. Therefore, waste of the UV lamp 34a outside the driving time can be reduced.

  Further, according to the present invention, as shown in FIG. 9, a TOC meter 28 is installed in a water tank 34, and UV light is emitted from a UV lamp 34 a based on the TOC concentration of water in the water tank 34 measured by the TOC meter 28. The embodiment of irradiating is also included. Specifically, when the TOC concentration in the water storage tank 34 measured by the TOC meter 28 is high, UV light is irradiated through the UV lamp 34a to promote the TOC decomposition action, and the measured TOC concentration is low. In this case, the irradiation of the UV lamp 34a is stopped.

  Therefore, since the UV lamp 34a can be started and stopped based on the TOC concentration measured by the TOC meter 28, the life of the UV lamp 34a can be extended and energy saving can be achieved. In addition, regarding the installation position of the TOC meter 28, in this embodiment, although it is in the water storage tank 34 as shown in FIG. 9, it will not specifically limit if it is in the circulation system of the water which flows through an air conditioner. However, a configuration in which the TOC meter 28 is installed in or around the water tank 34 where the TOC concentration is expected to be the highest, that is, in the middle of the pipe from the water tank 34 to the pure water production apparatus 37 is preferable.

(D) In the above embodiment, the configuration of the water storage tank 34 that stores drain water in an air conditioner having a water circulation system is described. However, the present invention simply stores water in the water storage tank, The embodiment includes a pure water production system in which a pure water production apparatus generates pure water from the stored water. That is, the above-described configuration and operation example of the water storage tank in which the UV lamp and the fine bubble generator are arranged are common to a pure water production system instead of an air conditioner.

The schematic diagram which shows the whole structure of the air conditioner which concerns on this invention Schematic diagram (1) showing a detailed configuration around the water storage tank according to the present invention Schematic diagram (2) showing a detailed configuration around the water storage tank according to the present invention Schematic diagram (3) showing a detailed configuration around the water storage tank according to the present invention The schematic diagram which shows the structure around the water tank provided with the ozone generator which concerns on other embodiment (a) of this invention. Schematic diagram showing a configuration around a water storage tank equipped with an ozone generator according to another embodiment (a) of the present invention (no UV lamp) The schematic diagram which shows the structure provided with various filters in the air supply line to the fine bubble generator in other embodiment (b) of this invention. The schematic diagram which shows the structure provided with the chemical filter in other embodiment (b) of this invention. The schematic diagram which shows the detailed structure of the water tank periphery provided with the TOC meter which concerns on other embodiment (c) of this invention. Schematic diagram showing the configuration of an air conditioner showing the prior art

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pre-filter 2 ... Medium performance filter 3 ... Heating coil 4 ... Cooling coil 10 ... Removal device 11-14 ... Water film 15-17 ... Pump 18 ... Drain pipe 19 ... Flow control valve 20 ... Pure water supply line 21 ... Water Membrane tank 22 ... Air supply line 23 ... Particle removal filter 24 ... Cation removal filter 25 ... Anion removal filter 26 ... Organic substance removal filter 27 ... Chemical filter 28 ... TOC meter 31 ... Water level sensor 32 ... Drain pump 33 ... Water level sensor 34 ... Water tank 34a ... UV lamp 34b ... fine bubble generator 34c ... ozone generator 35 ... supply regulating valve 36 ... constant pressure pump 37 ... pure water production apparatus

Claims (13)

An air conditioner having a water circulation system used for temperature / humidity adjustment or purification,
The circulation system includes a water tank for storing water to be circulated,
In the water storage tank, a fine bubble generator for generating microbubbles or micronanobubbles in the stored water,
A UV lamp that irradiates the stored water with ultraviolet light;
An air conditioner characterized in that is disposed.   The air conditioner according to claim 1, wherein the UV lamp is installed in the vicinity of the fine bubble generator in the water storage tank. An air supply line for supplying air that is a generation source of micro bubbles or micro nano bubbles is connected to the fine bubble generator,
The air conditioner according to claim 1 or 2, wherein the air supply line includes at least one of a particle removal filter, a cation removal filter, an anion removal filter, and an organic substance removal filter. It has a water film used for temperature / humidity adjustment and / or air purification,
The air conditioner according to claim 3, wherein the air supplied to the air supply line is air that has passed through the water film. Provided with a chemical filter for removing contaminants downstream of the water film,
The air conditioner according to claim 3, wherein the air supplied to the air supply line is air that has passed through the chemical filter.   The air conditioner according to claim 1 or 2, wherein the UV lamp constantly irradiates the water stored in the water storage tank with ultraviolet rays.   The air conditioner according to claim 1 or 2, wherein the UV lamp intermittently irradiates ultraviolet rays to water stored in the water storage tank. The circulation system includes a pump for circulating water,
The air conditioner according to claim 1 or 2, wherein the UV lamp irradiates the water stored in the water storage tank with ultraviolet rays in conjunction with the operation of the pump. The circulation system includes a TOC meter that measures the TOC concentration of flowing water,
The air conditioner according to claim 1 or 2, wherein the UV lamp irradiates the water stored in the water tank with ultraviolet rays based on a TOC concentration measured by the TOC meter.   The air conditioner according to claim 9, wherein the TOC meter is installed in the water storage tank in the circulation system.   The air conditioner according to any one of claims 1 to 10, wherein an ozone generator that generates ozone is provided in the water storage tank of the circulation system. An air conditioner having a water circulation system used for temperature / humidity adjustment or purification,
The circulation system includes a water tank for storing water to be circulated,
In the water storage tank, a fine bubble generator for generating microbubbles or micronanobubbles in the stored water,
An ozone generator for generating ozone;
An air conditioner characterized in that is disposed. In a pure water production system comprising a water storage tank for storing water, and a pure water production apparatus for producing pure water from the water stored in the water storage tank,
In the water storage tank, a fine bubble generator for generating microbubbles or micronanobubbles in the stored water,
A UV lamp that irradiates the stored water with ultraviolet light;
Is provided with a pure water production system.

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