JP5807232B2 - Deodorizing device - Google Patents

Description

  The present invention relates to a deodorizing apparatus that recovers and deodorizes odor components contained in odor gas.

  Odor gas containing odor components is exhausted from sewage treatment plants, livestock houses, compost houses, hospitals, garbage treatment plants, and the like. Air purifiers that can remove odorous odors have been developed. (See Patent Documents 1 and 2)

The air cleaner of Patent Document 1 includes a water vapor generating unit that generates water vapor using an ultrasonic vibrator or the like. The water vapor generated in the water vapor generating part is brought into contact with air to be a mixed gas with air. The mixed gas is sent to the electrostatic recovery unit and charged, and pollutants contained in the air are collected in the form of droplets and collected by the negative electrode. Patent Document 2 describes a gas-liquid contact method and apparatus. This apparatus includes an ultrasonic droplet spray nozzle that sprays droplets in an air stream. An electrode charged at a high voltage with respect to the ultrasonic droplet spray nozzle is provided in the ionization duct. The gas and droplet are separated by the electrode of the ionization duct.
JP-A-11-90262 JP 51-104476 A

  The devices described in the above patent documents atomize a liquid such as water by ultrasonic vibration, bring a gas into contact with the atomized mist, and separate components contained in the gas with a high-voltage electrode. This device can absorb odor components contained in air by mist and separate them. However, the apparatus having this structure has a drawback that it is difficult to efficiently recover the odor components contained in the odor gas.

  The present invention has been developed for the purpose of solving the disadvantages of the conventional apparatus. An important object of the present invention is to provide a deodorizing apparatus capable of recovering and deodorizing odor components contained in odor gas efficiently and promptly.

Means for Solving the Problems and Effects of the Invention

The deodorizing apparatus of the present invention includes an electrolyzed water device 1 that electrolyzes water into acidic water and alkaline water, and atomization that atomizes acidic water and alkaline water obtained by the electrolyzed water device 1 into a mist by ultrasonic vibration. The device 2, the mist obtained by the atomization device 2 is brought into contact with the odor gas, and the odor gas transfer device 3 for conveying the mist with the odor gas, and the mist contained in the odor gas transferred by the transfer device 3 And an electrostatic recovery device 4 that recovers the surface by the action of static electricity.
The atomization device 2 includes an ultrasonic vibrator 23 for acidic water that atomizes acidic water into mist, and an ultrasonic vibrator 24 for alkaline water that atomizes alkaline water into mist. Furthermore, the transfer device 3 has a duct 31 that branches off the odor gas and supplies it to the mist that is atomized by the respective ultrasonic vibrators 23 and 24, and a plurality of water tanks 26 are arranged between the ducts 31. An inflow duct 35 and an exhaust duct 36 are provided. A partition wall 37 that divides the water tank 26 between the inflow duct 35 and the exhaust duct 36 is provided, and the plurality of water tanks 26 partitioned by the partition wall 37 are disposed between the inflow duct 35 and the exhaust duct 36. They are connected in parallel to each other and arranged in the longitudinal direction of the inflow duct 35 and the exhaust duct 36. Further, each partitioned water tank 26 includes an acidic water tank 21 and an alkaline water tank 22, and ultrasonic transducers 23 and 24 are disposed at the bottom of the acidic water tank 21 and the alkaline water tank 22. . The odor gas supplied to the inflow duct 35 is diverted from the inflow duct 35 to each partitioned water tank 26 and discharged to the exhaust duct 36, and the odor gas flowing into each water tank 26 is acid water. Flowing through the tank 21 and the alkaline water tank 22, the odor gas is brought into contact with the mist obtained by atomizing the acidic water and the alkaline water, the odor component contained in the odor gas is absorbed into the mist, and the odor component is absorbed. The mist is recovered by the electrostatic recovery device 4.

The above deodorizing apparatus is characterized in that the odor component contained in the odor gas can be collected efficiently and promptly. The above deodorizer electrolyzes water to which electrolytic substances such as sodium chloride are added into acidic water and alkaline water, and ultrasonically vibrates the acidic water and alkaline water to atomize it into mist. This is because the mist is brought into contact with the odor gas to absorb the odor component into the mist, and the mist that has absorbed the odor component is recovered by the action of static electricity. The odor component contained in the odor gas is quickly absorbed and recovered by the mist composed of acidic water or alkaline water. For example, odorous components such as ammonia are efficiently absorbed in acidic water mist.
An electrostatic recovery device that recovers mist by the action of static electricity efficiently deodorizes by oxidizing the odor components contained in the odor gas with the generated ozone. For this reason, the deodorizing apparatus of this invention implement | achieves the characteristic which can collect | recover efficiently and deodorize the odor component contained in odor gas by absorbing the odor component contained in odor gas to mist efficiently and rapidly.

In the deodorizing apparatus of the present invention, the electrolyzed water device 1 can electrolyze the water to which the electrolytic substance is added into acidic water and alkaline water.
Since the above deodorizing apparatus electrolyzes water into strong acidic water and alkaline water with an electrolyzed water apparatus, the odor component contained in the odor gas is more efficiently absorbed into the strong acid water and strong alkaline water mist. There are features that can be recovered.

In the deodorizing apparatus of the present invention, the electrolyzed water apparatus 1 can electrolyze water to which an electrolytic substance made of sodium chloride is added into acidic water and alkaline water.
Since the above deodorizing apparatus electrolyzes the acidic water containing high concentration chlorine with the electrolyzed water device, the atomizing device atomizes strongly acidic water containing high concentration chlorine into mist. This mist quickly absorbs the odor component and deodorizes the odor component more efficiently with the contained chlorine ions. Therefore, this deodorizing apparatus is characterized in that it can efficiently deodorize the odor component contained in the odor gas by both chlorine ions contained in the mist and ozone generated by the electrostatic recovery apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. However, the example shown below illustrates the deodorizing apparatus for embodying the technical idea of the present invention, and the present invention does not specify the deodorizing apparatus as follows.

  Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

  1 includes an electrolyzed water device 1 that electrolyzes water into acidic water and alkaline water, and a mist that atomizes acidic water and alkaline water obtained by the electrolyzed water device 1 by ultrasonic vibration. Included in the odorizing device 2, the mist obtained by the atomizing device 2 in contact with the odor gas, and the odor gas transfer device 3 for conveying the mist with the odor gas, and the odor gas transferred by the transfer device 3 And an electrostatic recovery device 4 that recovers mist by the action of static electricity.

  In the deodorizing apparatus of FIG. 1, the odor gas containing the odor component comes into contact with the atomized mist of acidic water and alkaline water, and the odor component contained in the odor gas is absorbed by the mist. The mist absorbing the odor component is recovered by the electrostatic recovery device 4.

  The electrolyzed water device 1 electrolyzes and discharges continuously supplied water into acidic water and alkaline water. The electrolyzed water device 1 includes an adding device 5 for adding an electrolytic substance to water, an electrolytic cell 10 for electrolyzing water to which an electrolytic material has been added by the adding device 5, and a power supply 14 for applying a voltage to an electrode 13 of the electrolytic cell 10 With. Since the electrolyzed water device 1 shown in the figure adds an electrolytic substance to water and ionizes it in the electrolytic cell 10, the pH of the acidic water can be reduced and the pH of the alkaline water can be increased. That is, the hydrogen ion (H +) concentration of acidic water can be increased, and the hydroxide ion (OH−) concentration of alkaline water can be increased. The deodorizing apparatus of the present invention does not necessarily require electrolysis by adding an electrolytic substance to water. This is because all water containing an electrolytic substance, for example, tap water, ground water, or rainwater, can be electrolyzed without adding an electrolytic substance and ionized into acidic water and alkaline water.

  The addition device 5 includes a flow rate sensor 51 that detects the flow rate of water supplied to the electrolytic cell 10, and a solution tank 50 that dissolves the electrolyte with respect to the flow rate of water detected by the flow rate sensor 51. And an addition pump 52 for adding an electrolytic solution at a predetermined ratio. The solution tank 50 stores an electrolytic substance solution in which the electrolytic substance is dissolved at a predetermined concentration. The solution tank 50 stores and stores sodium chloride as an electrolytic substance at a predetermined concentration. Sodium chloride is supplied to the electrolytic cell 10 to increase the concentration of chlorine ions contained in the acidic water. Instead of sodium chloride, chlorine compounds such as magnesium chloride, calcium chloride, and aluminum chloride can be added to water as an electrolytic substance to increase the chloride ion concentration of acidic water. The atomized mist of acidic water having a high chlorine ion concentration can efficiently decompose the odor components contained in the odor gas with the contained chlorine ions.

  The above addition device 5 can control the concentration of the electrolytic substance added to water by the flow rate of water, the flow rate of the addition pump 52, and the electrolytic substance concentration stored in the solution tank 50. The addition device 5 has an electrolytic substance concentration in the solution tank 50 such that the concentration of the electrolytic substance of water supplied to the electrolytic cell 10 is, for example, 1 ppm to 1000 ppm, preferably 3 ppm to 500 ppm, and more preferably 5 ppm to 100 ppm. And the flow rate of the addition pump 52 is controlled.

  The electrolytic cell 10 shown in the figure is used while cleaning the electrode 13 by switching the electrode 13 with a changeover switch 15 at a predetermined timing. When the electrode 13 is switched, the acidic water and the alkaline water are switched. Therefore, the switching valve 16 is connected to the discharge side of the electrolytic cell 10. The electrolytic cell 10 electrolyzes the supplied water and separates it into alkaline water containing positive ions and acidic water containing negative ions. The ionized water electrolyzed in the electrolytic cell 10 is switched to the first drainage channel 11 and the second drainage channel 12 by the switching valve 16 and drained. The electrolytic cell 10 includes a first electrode 13A and a second electrode 13B that electrolyze inflowing water into alkaline water and acidic water. The first electrode 13 </ b> A and the second electrode 13 </ b> B are disposed to face each other and are connected to the power source 14 through the changeover switch 15. The electrolytic cell 10 shown in the figure has a water supply channel 17 connected to a lower end portion, and a first drainage channel 11 and a second drainage channel 12 connected to an upper end portion.

  The first electrode 13A and the second electrode 13B are made of a material having sufficient corrosion resistance against negative ions such as chlorine ions when energizing water. The first electrode 13 </ b> A and the second electrode 13 </ b> B are protruded outside the electrolytic cell 10 with their ends insulated.

  The first electrode 13 </ b> A and the second electrode 13 </ b> B are connected to a DC power source 14 via a changeover switch 15. The output voltage of the power source 14, that is, the voltage between both electrodes is determined in consideration of the flow rates of alkaline water and acidic water, the area of the electrode 13, and the required ion concentration contained in alkaline water and acidic water. Usually, the voltage between both electrodes is adjusted to a range of 20 to 100 volts.

  The content of ions electrolyzed in the electrolytic cell 10 is proportional to the current between the electrodes. The current between the electrodes is approximately proportional to the water conductivity and voltage. Therefore, the conductivity of water and the voltage between the electrodes are set so that the ion concentration of alkaline water and acidic water is an optimum value. When the conductivity of water is increased and the voltage between the electrodes is increased, the ion concentration contained in the alkaline water and the acidic water is increased. The optimum value of the ion concentration of alkaline water and acidic water varies depending on the application. By adjusting the voltage between the electrodes, ionic water optimum for the application can be obtained.

  A porous plate 18 is disposed between the first electrode 13A and the second electrode 13B as indicated by a chain line. The porous plate 18 prevents the acidic water and the alkaline water separated in the vicinity of the first electrode 13A and the second electrode 13B from mixing. In the electrolytic cell 10, the first electrode 13 </ b> A side separated by the porous plate 14 is connected to the first drainage channel 11, and the second electrode 13 </ b> B side is connected to the second drainage channel 12.

  Alkaline water and acidic water discharged from the electrolytic cell 10 are separated from each other and discharged separately. In the first drainage mode, acidic water is drained from the first drainage channel 11, and alkaline water is drained from the second drainage channel 12. In the second drainage mode, alkaline water is drained from the first drainage channel 11, and acidic water is drained from the second drainage channel 12. The changeover switch 15 and the changeover valve 16 are simultaneously switched to supply acid water and alkaline water to the atomizer 2 in the first drainage mode and the second drainage mode. In the first drainage mode and the second drainage mode, acidic water and alkaline water are supplied to the acidic water tank 21 and the alkaline water tank 22 of the atomization device 2.

  The atomization device 2 includes an ultrasonic vibrator 23 for acidic water that atomizes acidic water into mist, and an ultrasonic vibrator 24 for alkaline water that atomizes alkaline water into mist. The atomizing device 2 in FIG. 1 includes an acidic water tank 21 that supplies acidic water and an alkaline water tank 22 that supplies alkaline water. The acidic water tank 21 is provided with an ultrasonic transducer 23 at the bottom, and the ultrasonic transducer 23 atomizes the acidic water into mist. The alkaline water tank 22 is provided with an ultrasonic vibrator 24 at the bottom, and the ultrasonic vibrator 24 atomizes the alkaline water into mist. The ultrasonic transducers 23 and 24 are connected to an ultrasonic power source 25 and are ultrasonically vibrated with high-frequency power supplied from the ultrasonic power source 25.

  The transfer device 3 brings the mist gas into contact with the mist obtained by the atomization device 2 and transfers the mist to the electrostatic recovery device 4 using the odor gas as a carrier gas. The transfer device 3 in FIG. 1 supplies acid water mist and alkaline water mist to a duct 31 that conveys the odor gas, and contacts the odor gas with both. According to this structure, of the odor components contained in the odor gas, components that are easily absorbed by acidic water are absorbed by acidic water, and components that are easily absorbed by alkaline water are absorbed by mist of alkaline water. Therefore, each odor component can be efficiently absorbed into the mist from the odor gas containing various odor components. Moreover, the apparatus of FIG. 1 atomizes acidic water and alkaline water in odor gas in mist. The device having this structure can be efficiently recovered by the electrostatic recovery device 4 while efficiently absorbing the odor component of the odor gas into the mist.

  The deodorizing apparatus of FIG. 2 atomizes acidic water and alkaline water into mist in another carrier gas, mixes the carrier gas containing mist with odor gas, and transfers it to the electrostatic recovery device 4. This deodorization apparatus uses a first duct 33 for transferring a carrier gas in which acidic water is atomized into mist, and a second duct 34 for transferring a carrier gas in which alkaline water is atomized into mist. It connects with the duct 31 to convey, and the conveyance gas containing the mist of acidic water and alkaline water is mixed with odor gas. The apparatus having this structure can use air or an inert gas as a carrier gas. In the deodorizing apparatus having this structure, a carrier gas containing mist of acidic water and alkaline water is mixed with odor gas, and the odor component of the odor gas is absorbed by the mist of acidic water and alkaline water.

  The deodorizing apparatus shown in the plan view of FIG. 3 is provided with a plurality of ultrasonic vibrators 23, 24 in the atomizing apparatus 2, and the odor gas is branched in the duct 31 of the transfer apparatus 3. , 24 is supplied to the mist to be atomized. In the deodorizing apparatus of this figure, an inflow duct 35 and an exhaust duct 36 are arranged in parallel, and a water tank 26 divided into a plurality of partitions 37 is disposed between the inflow duct 35 and the exhaust duct 36. . Each of the water tanks 26 is arranged so that the acidic water tank 21 and the alkaline water tank 22 are connected in series, and ultrasonic transducers 23 and 24 are arranged at the bottom of the acidic water tank 21 and the alkaline water tank 22. ing. In the deodorizing apparatus having this structure, the inlet duct 35 and the exhaust duct 36 are provided with openings 38 for diverting the odor gas to each water tank 26. Therefore, the odor gas supplied from the inflow duct 35 flows so as to be diverted to each partitioned water tank 26 and is discharged to the exhaust duct 36. The odor gas flowing into each water tank 26 flows above the acidic water tank 21 and the alkaline water tank 22. With the odor gas flowing in the upper part of the acidic water tank 21, the acidic water is atomized into mist by ultrasonic vibration. In addition, the alkaline water is atomized into mist by ultrasonic vibration while the odor gas is allowed to flow in the upper part of the alkaline water tank 22. Therefore, the apparatus of this structure atomizes and supplies the mist of acidic water and alkaline water in the odor gas divided by the inflow duct 35 and the exhaust duct 36, and makes the mist absorb the odor component. Further, since the odor gas is divided and supplied to the water tank 26, the acidic water and alkaline water in the water tank 26 are efficiently atomized into mist in the odor gas. This is because mist is atomized as mist in fresh odor gas.

  The electrostatic recovery device 4 arranges the high voltage electrode 41 so as to face each other, and supplies odor gas containing mist between the high voltage electrodes 41. The high voltage electrode 41 is connected to a DC power source 42 of 5000V to 20000V, and collects mist passing between the electrodes with an electrostatic force. The collected mist flows down from the high voltage electrode 41 and is collected.

It is a schematic block diagram of the deodorizing apparatus concerning one Example of this invention. It is the schematic which shows another example of a transfer apparatus. It is a top view which shows another example of a transfer apparatus.

DESCRIPTION OF SYMBOLS 1 ... Electrolyzed water apparatus 2 ... Atomization apparatus 3 ... Transfer apparatus 4 ... Electrostatic recovery apparatus 5 ... Addition apparatus 10 ... Electrolyzer 11 ... 1st drainage channel 12 ... 2nd drainage channel 13 ... Electrode 13A ... 1st electrode
DESCRIPTION OF SYMBOLS 13B ... 2nd electrode 14 ... Power supply 15 ... Changeover switch 16 ... Switching valve 17 ... Water supply path 18 ... Perforated plate 21 ... Acidic water tank 22 ... Alkaline water tank 23 ... Ultrasonic transducer 24 ... Ultrasonic transducer 25 ... Ultrasonic Power supply 26 ... Water tank 31 ... Duct 33 ... First duct 34 ... Second duct 35 ... Inflow duct 36 ... Exhaust duct 37 ... Partition wall 38 ... Opening 41 ... High voltage electrode 42 ... High pressure power supply 50 ... Solution tank 51 ... Flow rate Sensor 52 ... Additive pump

Claims (3)

Electrolyzed water device (1) that electrolyzes water into acidic water and alkaline water, and an atomizer (2) that ultrasonically vibrates acidic water and alkaline water obtained by this electrolyzed water device (1) into mist ), The mist obtained by the atomization device (2) is brought into contact with the odor gas, and the odor gas transfer device (3) for conveying the mist with the odor gas, and the odor transferred by the transfer device (3). Equipped with an electrostatic recovery device (4) that recovers mist contained in the gas by the action of static electricity,
The atomizing device (2) includes an ultrasonic vibrator (23) of acidic water that atomizes acidic water into mist, and an ultrasonic vibrator (24) of alkaline water that atomizes alkaline water into mist. ,
Further, the transfer device (3) has a duct (31) for branching the odor gas and supplying the mist to be atomized by each ultrasonic vibrator (23), (24). ) Includes an inflow duct (35) and an exhaust duct (36) in which a plurality of water tanks (26) are arranged, and a water tank (35) between the inflow duct (35) and the exhaust duct (36). A partition wall (37) that divides the partition wall 26) is provided, and a plurality of water tanks (26) partitioned by the partition wall (37) are connected to each other between the inflow duct (35) and the exhaust duct (36). Connected in parallel and arranged in the longitudinal direction of the inflow duct (35) and the exhaust duct (36),
Furthermore, each of the partitioned water tanks (26) includes an acidic water tank (21) and an alkaline water tank (22), and ultrasonic waves are formed at the bottom of the acidic water tank (21) and the alkaline water tank (22). The vibrators (23) and (24) are arranged.
The odor gas supplied to the inflow duct (35) is diverted to each water tank (26) partitioned from the inflow duct (35) and discharged to the exhaust duct (36), and each water tank (26 The odorous gas flowing into the acidic water tank (21) and the alkaline water tank (22) flows into the
The odor gas containing the odor component is brought into contact with the mist formed by atomizing the acidic water and the alkaline water, the odor component contained in the odor gas is absorbed by the mist, and the mist absorbing the odor component is recovered electrostatically. (4) A deodorizing device that can be recovered by using this method.   The deodorizing apparatus according to claim 1, wherein the electrolyzed water device (1) electrolyzes water to which an electrolytic substance is added into acidic water and alkaline water.   The deodorizing apparatus according to claim 2, wherein the electrolyzed water device (1) electrolyzes water to which an electrolytic substance made of sodium chloride is added into acidic water and alkaline water.

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