WO2013157202A1 - 浄化装置 - Google Patents

浄化装置 Download PDF

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Publication number
WO2013157202A1
WO2013157202A1 PCT/JP2013/001897 JP2013001897W WO2013157202A1 WO 2013157202 A1 WO2013157202 A1 WO 2013157202A1 JP 2013001897 W JP2013001897 W JP 2013001897W WO 2013157202 A1 WO2013157202 A1 WO 2013157202A1
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WO
WIPO (PCT)
Prior art keywords
water
stored water
bubbles
stored
air
Prior art date
Application number
PCT/JP2013/001897
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English (en)
French (fr)
Japanese (ja)
Inventor
理江 大崎
藤田　明
悦史 長江
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to CN201380020107.6A priority Critical patent/CN104244995B/zh
Publication of WO2013157202A1 publication Critical patent/WO2013157202A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2323—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits
    • B01F23/23231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles by circulating the flow in guiding constructions or conduits being at least partially immersed in the liquid, e.g. in a closed circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/238—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using vibrations, electrical or magnetic energy, radiations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/85—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with a vibrating element inside the receptacle
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C02F2101/327—Polyaromatic Hydrocarbons [PAH's]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/38—Organic compounds containing nitrogen

Definitions

  • the present disclosure relates to a purification device that decomposes organic substances contained in a gas to be purified by hydroxy radicals.
  • Patent Document 1 As a conventional technique, there is an air purifier disclosed in Patent Document 1 below.
  • water is sprayed from a humidifying nozzle to supply water to the surface of the honeycomb structure while air is circulated through the honeycomb structure carrying polyaniline as a hydroxy radical generating member.
  • polyaniline oxidizes water to generate hydroxy radicals, and decomposes odorous substances adhering to the surface of the honeycomb structure.
  • the present disclosure has been made in view of the above points, and an object of the present disclosure is to provide a purification device capable of improving the performance of purifying the purification target gas.
  • a purification device includes: A water tank for storing the stored water inside, A bubble forming device for forming fine bubbles of the purification target gas containing organic matter in the stored water; A radical generator for generating hydroxy radicals in the stored water, The organic substance in the bubbles is decomposed by hydroxy radicals generated around the bubbles.
  • the gas to be purified is taken into the stored water as fine bubbles, and the organic substance in the bubbles can be decomposed by the hydroxy radicals generated around the bubbles by the radical generator. Therefore, the organic substance can be decomposed by hydroxy radicals from the entire gas-liquid interface surrounding the fine bubbles of the purification target gas, and the purification target gas can be reliably purified. In this way, the performance of purifying the gas to be purified can be improved.
  • the radical generator may be an ultrasonic irradiation device that irradiates the stored water with ultrasonic waves.
  • cavitation in which fine bubbles become cavitation species is generated by the ultrasonic wave irradiated to the stored water by the ultrasonic irradiation device.
  • hydroxy radicals can be easily generated around the fine bubbles. Therefore, it is possible to easily improve the performance of purifying the purification target gas.
  • the purification device 1 of the present embodiment is for purifying the air in the room 9 of the container 8, for example.
  • the purification device 1 includes a water tank 10, a bubble generator 20, a vibrator 50, a blower duct 60, a control device 100, and the like.
  • the water tank 10 is made of, for example, metal and is a container body that is open at the top.
  • the water tank 10 stores the stored water 11 therein, and corresponds to the water storage tank in the present embodiment.
  • the bubble generator 20 is disposed near the bottom in the water tank 10.
  • the bubble generator 20 includes, for example, a metal aspirator 21 and a water pump 28.
  • the water pump 28 discharges the sucked stored water 11 to the aspirator 21 through the water conduit 26.
  • the aspirator 21 has a nozzle portion 22 that restricts the flow path of water.
  • the aforementioned introduction pipe 26 is connected to the introduction port 23 at the right end of the nozzle portion 22 in the figure.
  • the water introduced from the introduction port 23 passes through the tip opening of the nozzle portion 22 and is ejected into the water tank 10 from the jet outlet 24 at the left end in the figure.
  • a suction port 25 at the upper end of the figure communicates.
  • the downstream end of the intake pipe 27 shown in FIG. 1A is connected to the intake port 25.
  • the upstream end of the intake pipe 27 communicates with the room 9, and the air in the room 9 can flow into the intake pipe 27.
  • a filter 30 is disposed at the upstream end of the intake pipe 27 so as to remove relatively large foreign substances from the air sucked into the intake pipe 27.
  • the intake pipe 27 is provided with an air supply pump 29.
  • the flow rate of water increases at the tip of the nozzle portion 22 with a narrowed inner diameter.
  • the pressure of water decreases due to the venturi effect. Air sucked from the suction port 25 is caught in the water flow whose pressure has been reduced. And the water spouted from the spout 24 contains many fine bubbles 12.
  • the bubble generator 20 corresponds to a bubble forming device that forms fine bubbles in the stored water 11.
  • the bubbles 12 are so-called microbubbles having a diameter of 100 ⁇ m or less, for example.
  • a vibrator 50 is disposed in the water tank 10 along the side wall surface of the water tank 10.
  • the vibrator 50 oscillates an ultrasonic wave by vibrating.
  • the vibrator 50 corresponds to an ultrasonic irradiation device that irradiates the stored water 11 with ultrasonic waves.
  • the vibrator 50 is not limited to the one installed on the side wall surface of the water tank 10, and may be arranged at the bottom of the water tank 10, for example. Further, the number of vibrators 50 is not limited to one, and a plurality of vibrators 50 may be provided.
  • the vibrator 50 is not limited to one that oscillates ultrasonic waves of one frequency, and may oscillate ultrasonic waves of a plurality of frequencies at the same time.
  • an air duct 60 made of metal or resin is disposed above the water tank 10.
  • the upstream end of the air duct 60 is connected to the upper opening of the water tank 10.
  • a downstream end of the air duct 60 is connected to and opened to a side wall portion of the container 8, for example.
  • the opening at the downstream end of the air duct 60 serves as an air outlet 61 that blows air into the room 9.
  • a blower fan 62 for supplying air from the upstream end to the downstream end is disposed in the blower duct 60.
  • the room 9 is provided with an air conditioner 70 for air-conditioning the room 9.
  • the air conditioner 70 includes, for example, a cooling heat exchanger capable of cooling the air in the room 9.
  • the air conditioner 70 corresponds to a cooling device that cools the air in the room 9.
  • the air conditioner 70 has a drain pipe 71 for discharging the generated condensed water to the outside. The downstream end of the drain pipe 71 communicates with the water tank 10.
  • the environmental sensor 80 for detecting the environmental state of the indoor 9 is disposed in the indoor 9.
  • the environmental sensor 80 constitutes a detection device that detects the concentration of organic matter such as temperature, humidity, dust, bacteria, and ethylene gas in the room 9, for example.
  • the ethylene gas is a so-called aging gas that produces fruits and vegetables when the cargo stored in the room 9 is fruits and vegetables, for example.
  • the control device 100 inputs the environmental state information detected by the environmental sensor 80, and based on the input information and preset setting conditions, the water pump 28, the pump 29, and the vibrator 50.
  • the blower fan 62 and the air conditioner 70 are controlled to operate.
  • the control device 100 drives the air conditioner 70 to adjust the temperature of the room 9 to be within the set temperature range.
  • Condensed water generated when the air conditioner 70 cools the air in the room 9 is introduced into the water tank 10 via the drain pipe 71.
  • the drain pipe 71 corresponds to a condensed water introduction device that introduces condensed water into the storage tank.
  • the control device 100 When the humidity in the room 9 is lower than the set humidity, the control device 100 performs so-called ultrasonic humidification by vibrating the vibrator 50 in the humidification mode, for example.
  • the humidification mode is to oscillate ultrasonic waves having a frequency of 1 MHz to 5 MHz, for example.
  • the blower fan 62 is operated to blow humidified air into the room 9.
  • Humidification of the room 9 can be performed by driving the water pump 28, for example.
  • the water pump 28 When the water pump 28 is driven, a large number of fine bubbles 12 can be formed in the stored water 11 by the action of the aspirator 21 described above. At this time, water vapor is taken into the bubbles 12 having a large specific surface area relatively quickly. Therefore, a large amount of water vapor is contained in the air rising from the surface of the stored water 11.
  • the air in the room 9 can also be humidified by blowing this air into the room 9.
  • the blower fan 62 may be driven to assist the blowing.
  • the pump 29 may also be driven so as to assist in the intake of air in the room 9.
  • Control device 100 drives water pump 28 and vibrates vibrator 50 in the cavitation mode when the amount of organic matter contained in the air in room 9 is larger than the set value.
  • the cavitation mode is to oscillate ultrasonic waves having a frequency of several kHz to 3 MHz, preferably 20 kHz to 1 MHz, for example.
  • the pressure in the stored water 11 varies with time as illustrated in the upper part of FIG.
  • the fine bubbles 12 repeat adiabatic compression and adiabatic expansion.
  • the bubble 12 is adiabatically compressed, the gas-liquid interface between the bubble 12 and the bubble 12 and the stored water 11 becomes a high-temperature and high-pressure reaction field, and the bubble 12 is crushed. That is, the bubble 12 collapses due to pressure.
  • the pressure in the bubble 12 rises to, for example, 5 MPa to 100 MPa.
  • the vibrator 50 corresponds to a radical generator that generates hydroxy radicals in the stored water 11.
  • the air bubbles 12 in which the organic substances inside are decomposed by the above-described action rise in the stored water 11. Specifically, for example, a bubble group formed by crushing the bubbles 12 rises in the stored water 11. And it leaves
  • the air purified in the water tank 10 flows through the air duct 60 and is blown out from the air outlet 61 to the room 9.
  • the blower fan 62 may be driven to assist the blowing.
  • the pump 29 may be driven so as to assist the suction of the air in the room 9 into the aspirator 21.
  • the air circulation in the purification device 1 that sucks air in the room 9 and purifies it in the stored water 11 and blows it out to the room 9 is driven by any one of the water pump 28, the pump 29, and the blower fan 62 or a combination of a plurality of drives. Can be performed.
  • the bubble generator 20 takes the air in the room 9 as the purification target gas into the stored water 11 as the fine bubbles 12, and the hydroxy radicals generated around the bubbles 12 by the vibrator 50
  • the organic matter in the bubbles 12 can be decomposed. Therefore, the organic substance can be decomposed by hydroxy radicals from the entire area of the gas-liquid interface surrounding the fine bubbles 12 to reliably purify the air. In this way, the air purification performance can be improved.
  • the generation of hydroxy radicals can be easily performed by irradiating the stored water 11 with ultrasonic waves from the vibrator 50. That is, cavitation in which the fine bubbles 12 become cavitation species is generated by the ultrasonic wave irradiated to the stored water 11 by driving the vibrator 50. When the fine bubbles 12 are crushed by this cavitation, hydroxy radicals can be easily generated around the bubbles 12. Therefore, the air purification performance can be easily improved.
  • the lifetime of the hydroxy radical is as short as, for example, about 1 / 1,000,000 seconds. However, since the hydroxy radical is generated around the fine bubbles 12, the organic substance can be reliably decomposed.
  • ethylene gas reforming method disclosed in Japanese Patent Application Laid-Open No. 2005-261428.
  • a gas containing ethylene gas is passed through the breathable water retaining body while irradiating the breathable water retaining body to which water droplets are attached with an ultraviolet light emitting tube, and the ethylene radical is generated by hydroxy radicals generated in the water droplets. It is reformed to ethane and water.
  • the ultraviolet light emitting tube and the breathable water retaining body are arranged close to each other, for example, within a distance of 10 mm or less. Further, since the emission intensity of the ultraviolet light emitting tube is lowered at 10 ° C. or lower, a heater is provided between the ultraviolet light emitting tube and the breathable water retaining body.
  • the purification device 1 of the present embodiment there is an advantage that the ventilation of the air that is the purification target gas is difficult to be inhibited and the temperature of the air blown into the room 9 is also difficult to increase.
  • the air conditioner 70 has a drain pipe 71, so that condensed water generated when the air conditioner 70 cools the air in the room 9 is introduced into the water tank 10 through the drain pipe 71. It has become.
  • the second embodiment is different from the first embodiment in that it has a configuration in which ozone is mixed into bubbles.
  • symbol is attached
  • the purification device of this embodiment includes an ozone generator 90.
  • the ozone generator 90 can be, for example, an ozone generator having an ultraviolet lamp.
  • the ozone generated by the ozone generator 90 is mixed into the air flowing through the intake pipe 27 via, for example, the pump 29. Therefore, when the water pump 28 is driven and the bubbles 12 are emitted from the aspirator 21, ozone is mixed in the bubbles 12.
  • hydroxy radicals can also be generated by reacting ozone with the stored water 11 around the bubbles 12.
  • Ozone alone has high oxidizing power, but coexists with water, that is, becomes ozone water, thereby generating hydroxy radicals with higher oxidizing power.
  • the third embodiment is different from the first embodiment in that the third embodiment has a configuration that also purifies water in a storage tank that stores aquatic organisms.
  • symbol is attached
  • a water tank 101 that is a water tank for storing seafood 102 that is an aquatic organism is disposed.
  • the water pump 28 supplies water in the water tank 101 to the aspirator 21 through the water conduit 126.
  • a water conduit 226 for returning water from the water tank 10 to the water tank 101 is disposed in the air duct 60.
  • the upstream end of the water conduit 226 opens into the upper stored water 11 in the water tank 10.
  • the downstream end of the water conduit 226 opens into the water in the water tank 101.
  • the water pump 28 and the water conduit 126 correspond to an aquarium water introduction member that introduces water in the accommodation tank into the water storage tank.
  • the water conduit 226 corresponds to a stored water outlet member that guides the stored water in the water storage tank into the stored water tank.
  • the water guide pipe 226 is not limited to the pipe disposed in the air duct 60, and the water duct 10 and the water tank 101 may communicate with each other outside the air duct 60.
  • downstream end of the water conduit 226 is not limited to the one that opens into the water in the upper part of the water tank 101.
  • the downstream end of the water conduit 226 may be located above the water surface of the water tank 101. In the case of such an arrangement, it is preferable to provide a pump portion in the water conduit 226 or provide a check valve at the downstream end of the water conduit 226.
  • the pump 29, the blower fan 62, the air conditioner 70, the drain pipe 71, the environment sensor 80, and the like described in the first embodiment may be adopted.
  • the ozone generator 90 described in the second embodiment may be adopted.
  • hydroxy radicals are generated in the stored water 11 when the fine bubbles 12 in the stored water 11 are crushed.
  • the organic matter in the bubbles 12 is decomposed, and the organic matter in the stored water 11 brought from the water tank 101 is also decomposed. In this way, the air in the bubbles 12 and the stored water 11 are purified.
  • the bubbles 12 in which the organic matter inside is decomposed rises in the stored water 11 and leaves as the air purified upward from the water surface of the stored water 11.
  • the air purified in the water tank 10 flows through the air duct 60 and is blown out from the air outlet 61 to the room 9.
  • the stored water 11 in which organic substances contained during the ascending in the water tank 10 are decomposed flows into the water conduit 226 at the upper part in the water tank 10 and is returned to the water tank 101 as purified water.
  • a part of the purified bubbles 12 also flows into the water conduit 226, and aeration in the water tank 101 can be performed. Even if there is no inflow of the bubbles 12 into the water conduit 226, a large number of fine bubbles 12 are formed in the stored water 11, so that water having an extremely high dissolved oxygen concentration is supplied to the water tank 101. Can do.
  • the same effect as that of the first embodiment can be obtained. Furthermore, the stored water 11 in the water tank 10 contains organic substances, and the organic substances in the stored water 11 are also decomposed by the hydroxy radicals generated by the ultrasonic waves oscillated by the vibrator 50. That is, air purification and water purification can be performed simultaneously in the water tank 10.
  • a water guide pipe 126 for introducing the water in the water tank 101 containing the seafood 102 into the water tank 10 and a water guide pipe 226 for guiding the stored water 11 into the water tank 101 are provided. And the water in the water tank 101 is introduce
  • the purification of the air in the room 9 of the container 8 and the purification of the water in the water tank 101 can be performed simultaneously. Since the lifetime of hydroxy radicals generated in the water tank 10 is extremely short, the hydroxy radicals are not brought into the room 9 or the water tank 101. Therefore, the hydroxy radical does not adversely affect the seafood 102 in the aquarium 101.
  • the water conduit 226 guides the stored water 11 including the bubbles 12 into the water tank 101. According to this, the water in the water tank 101 can be aerated by the clean bubbles 12 purified in the water tank 10.
  • the aquatic organism in the aquarium 101 is the seafood 102 which is a marine animal, but is not limited to this.
  • it may be a plant such as seaweed.
  • the pipe member was employ
  • a porous partition plate having water permeability may be used for the water tank water introducing member and the stored water outlet member.
  • the vibrator 50 that oscillates an ultrasonic wave is used as the radical generator, but the present invention is not limited to this.
  • a configuration in which bubbles generated by a bubble generator are so-called nano bubbles having a diameter of less than 1 ⁇ m may be adopted. Since nanobubbles have a very large specific surface area, they are crushed by interfacial tension. Hydroxyl radicals are generated when the nanobubbles are crushed, the organic matter in the nanobubbles is decomposed, and the air in the nanobubbles is purified.
  • the aspirator 21 is used for the bubble generator 20, but the present invention is not limited to this.
  • the indoor air pumped by the pump may be ejected into the stored water through the porous body to form bubbles in the stored water.
  • the air that is the purification target gas is the air in the room 9 of the mobile container 8, but is not limited thereto.
  • the air in the room of a stationary warehouse or house may be used, or the air in the room of a mobile vehicle.
  • the purification device is configured to purify the air in the room 9 and return it to the room 9, but the present invention is not limited to this.
  • the outdoor air may be purified and blown into the room.
  • the purification device is disposed outside the room, but is not limited thereto.
  • the purification device may be disposed indoors.
  • purification object gas was air, it is not limited to this.
  • it may be a gas such as nitrogen gas or helium gas purged into the chamber of the machine.
PCT/JP2013/001897 2012-04-16 2013-03-20 浄化装置 WO2013157202A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380020107.6A CN104244995B (zh) 2012-04-16 2013-03-20 净化装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-093001 2012-04-16
JP2012093001A JP5870828B2 (ja) 2012-04-16 2012-04-16 浄化装置

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WO2013157202A1 true WO2013157202A1 (ja) 2013-10-24

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JP (1) JP5870828B2 (zh)
CN (1) CN104244995B (zh)
WO (1) WO2013157202A1 (zh)

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JP2017042381A (ja) * 2015-08-27 2017-03-02 宗信 蔡 水ろ過材空気浄化装置

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US9550156B2 (en) * 2014-03-11 2017-01-24 Trusval Technology Co., Ltd. Generation apparatus for dissolving gas in liquid and fluid nozzle
JP2017042381A (ja) * 2015-08-27 2017-03-02 宗信 蔡 水ろ過材空気浄化装置

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