JP2005152768A - Bubble washing and deodorization apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an economical bubble washing and deodorization apparatus which can positively generating bubbles to increase the deodorization efficiency and in which the bubbles are not discharged through a discharge port. <P>SOLUTION: The apparatus comprises a bubbling deodorization part 2 for producing bubbles B in an air flow channel 1 where air containing pollutants flows and causing the bubbles to adsorb-and-decompose the pollutants contained in the air flowing in the air flow channel 1 in the bubbles B. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention has an air flow path through which air to be deodorized and washed flows, and a bubble made of a deodorized cleaning liquid is generated in the air flow path so that the pollutant contained in the air flowing in the air flow path The present invention relates to a bubble cleaning and deodorizing apparatus in which a foaming deodorizing part for adsorbing and decomposing a foam is disposed, and a bubble breaking part for bursting bubbles is disposed on the downstream side of the foaming deodorizing part.

  2. Description of the Related Art Conventionally, a cleaning apparatus that performs deodorization and cleaning by passing air containing a contaminant to be deodorized and cleaned through a cleaning tower (a scrubber cleaning tower) that sprays a cleaning liquid inside is known. (For example, refer to Patent Document 1).

  As shown in FIG. 5, this conventional cleaning apparatus has a porous filling portion filled with Raschig ring, porous carbide formed from wood, bamboo, etc., or Bincho charcoal as a filling material in the washing tower 1 ′. J is provided, and the cleaning liquid L ′ is sprayed from above into the filling section J by driving the pump 81 from the liquid storage section 5 through the liquid supply flow path 8 to remove the air to be deodorized and cleaned. By driving the fan 43 through the suction path 42, the air is sucked into the cleaning tower 1 ′ from the suction port 41 provided at the lower end of the cleaning tower 1 ′. The sucked air passes through the filling portion J upward and is discharged from the discharge port 45 provided at the upper end portion of the cleaning tower 1 ′. The flowing cleaning liquid L ′ and the air come into contact with each other, and the contaminating components contained in the air are adsorbed and removed.

However, in the conventional cleaning apparatus using the synthetic resin filler such as Raschig ring, a large amount is used to widen the contact area between the cleaning liquid L ′ and the air containing the deodorizing and cleaning contaminants. A filler is required, the height of the apparatus is increased, and a certain amount of watering is required.
Japanese Patent Laid-Open No. 2003-1057

  Therefore, in a conventional cleaning apparatus such as the above scrubber, when trying to further improve the contact efficiency between the air containing the contaminating component and the cleaning liquid L ′, a surfactant is introduced into the cleaning liquid L ′ to create bubbles. However, in this case, although the deodorization efficiency is improved, the pressure loss becomes too large, and the generated bubbles are discharged. There was a problem of being discharged from the outlet 45. Therefore, it is conceivable to provide a mist separator made of a breathable member or the like in front of the discharge port so that bubbles are not discharged. In this case, the mist separator is impregnated with a cleaning liquid, Bubbles are generated when the air passes, and it has not been possible to prevent the bubbles from being discharged from the discharge port.

  The present invention was invented in view of the problems of the above-described conventional example, and the object of the present invention is to actively generate bubbles to increase the deodorization efficiency, and the bubbles are discharged from the outlet. An object of the present invention is to provide an inexpensive bubble cleaning and deodorizing device that is not exhausted.

  In order to solve the above-mentioned problem, in the invention according to claim 1, bubbles B made of the deodorizing cleaning liquid L are generated in the air flow path 1 through which air containing pollutants flows, and the air flow path is generated in the bubbles B. The foaming deodorization part 2 which adsorb | sucks the contaminant contained in the air which flows in 1 and decomposes | disassembles it is arrange | positioned, It is characterized by the above-mentioned. By adopting such a configuration, the contaminants contained in the air can be adsorbed and decomposed in the bubbles B that are actively generated in the foaming deodorization unit 2, and the conventional scrubber washing tower Thus, the deodorizing efficiency can be improved by improving the contact property between the bubbles B and air without increasing the height.

  Further, the invention of claim 2 is the foaming part 21 for generating the bubbles B made of the deodorized cleaning liquid L in the air flow path 1 in the invention of claim 1, It is arranged on the downstream side of the foaming part 21 and is composed of a contact part 22 made of a void for promoting the contact between the bubble B and air when the bubble B adheres thereto. Is. By setting it as such a structure, the contact efficiency of the bubble B and the air containing a pollutant can be improved in the contact part 22, and a deodorizing efficiency improves.

  The invention of claim 3 is the invention of claim 2, wherein the foaming portion 21 is formed by a void that holds the deodorizing cleaning liquid L and generates bubbles B made of the deodorizing cleaning liquid L. It is characterized by this. By adopting such a configuration, it is possible to hold the deodorizing cleaning liquid L only by arranging the voids, and it is possible to generate the bubbles B by the wind pressure of the air containing the pollutant. The foaming part 21 can be comprised.

  The invention of claim 4 is characterized in that, in the inventions of claims 1 to 3, the foam breaking part 3 is provided on the downstream side of the foaming deodorizing part 2. By setting it as such a structure, it is prevented that the bubble B is bubbled and discharged from the discharge port 45.

  In the present invention, it is possible to adsorb the pollutants contained in the air to the bubbles generated in the foaming deodorization unit and to decompose them, and to increase the height like a conventional scrubber washing tower. Without any problem, the deodorization efficiency can be improved by improving the contact between the bubbles and the air.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. The bubble cleaning and deodorizing apparatus of the present invention generates bubbles with an aqueous solution in which a surfactant is dissolved, and cleans and deodorizes air by adsorbing and dissolving contaminant components such as odor components contained in the air in the bubbles. Is.

  As shown in FIG. 1, the bubble cleaning and deodorizing apparatus mainly includes a main body casing 4 and a liquid storage section 5 that stores a deodorizing cleaning liquid L provided below the main body casing 4.

  The main body casing 4 has a generally box shape in which the air flow path 1 is formed, and the width, height, depth, and the like are designed according to the installation location. And a downstream path 12 are formed, and a communication part 40a is formed at the upper end of the vertical partition plate 40 so that the upstream path 11 and the downstream path 12 communicate with each other via the communication part 40a.

  A suction opening 41 communicating with the outside of the main casing 4 is formed at the lower end portion of the side wall of the main casing 4 on the upstream path 11 side, and one end of a duct provided with a fan 43 serving as a suction path 42 in the suction opening 41. The opening on the other end side of the duct is disposed in a kitchen or the like, and serves as a suction port (not shown) for sucking air into the main body casing 4. The foaming deodorizing unit 2 is disposed in the upstream path 11 and will be described in detail later.

  The downstream path 12 is provided with a blower section 6 for blowing air flowing from the communication section 40a of the vertical partition plate 40 into the downstream path 12 downward. The air blower 6 includes a downstream path 12 in the upper half or the upper end to the vicinity of the lower end where the communication section 40a exists (that is, the downward path 12a described later) and the communication section 40a does not exist. (That is, the upward path 12b side described later) may be formed by partitioning, or an opening provided on the side of the upper end portion of the duct-like member may be connected to the communication portion 40a. The air may be blown downward from the opening at the lower end of the duct-shaped member. And the part which faces the communicating part 40a of the inner wall surface of this air blower part 6 becomes the bubble breaker part 3 for the bubble B to collide and burst, as will be described later. Further, a lower opening 44b (described later) is formed in the bottom surface of the main casing 4 below the blower 6. Further, a discharge port 45 communicating with the outside of the main body casing 4 is formed in the canopy portion of the main body casing 4 on the upper end of the downstream path 12 where the communication portion 40a does not exist (upward path 12b side).

  As a result, the downstream path 12 further includes a downward path 12a in the air blowing part 6 for blowing the air flowing in from the communication part 40a downward, and at the air blowing part 6 (downward path 12a) and the lower end. An upward path 12b that communicates and blows air from the blower 6 toward the upper outlet 45 is formed.

  A liquid storage portion 5 having a substantially box shape is disposed below the main body casing 4 and connected to the main body casing 4. More specifically, lower openings 44 a and 44 b are formed on the lower end surfaces of the main body casing 4 on the upstream path 11 side and the downstream path 12 side, and correspond to the lower openings 44 a and 44 b on the upper end surface of the liquid storage unit 5. The upper openings 50a and 50b are formed in the portions to be connected, and the upper openings 50a and 50b and the lower openings 44a and 44b are connected by liquid flow paths 51a and 51b made of ducts, hoses, pipes, and the like, respectively.

  The stock solution storage unit 7 is connected to the solution storage unit 5. In this embodiment, a tank as a stock solution storage section 7 for storing a stock solution of the deodorizing cleaning liquid L used in the present embodiment is provided on the side of the main body casing 4, and the tank and the liquid storage section 5 are supplied with a stock solution composed of a hose, a pipe, and the like. They are connected by a flow path 70. Further, the liquid storage section 5 is provided with a water supply valve 46 for supplying clean water (tap water) and a drain valve 47 for draining the liquid storage section 5 (see FIG. 3). Is possible. Further, a valve 72, a stock solution buffer unit 71 and its valve 73 are provided in the middle of the stock solution supply flow path 70 (see FIG. 3), thereby enabling fine adjustment of the stock solution supply amount.

  Further, the liquid storage section 5 has a liquid supply flow path 8 composed of a hose, a pipe and the like for supplying the deodorizing cleaning liquid L stored therein to the foaming deodorization section 2 described later provided in the upstream path 11 of the main body casing 4. Connected. The liquid supply channel 8 is provided with a pump 81 for conveying the deodorizing cleaning liquid L to the foaming deodorizing unit 2 in the middle, and the deodorizing cleaning liquid L is sprayed to the foaming deodorizing unit 2 at the downstream end. Nozzle 82 is provided.

  In addition, the bubble cleaning deodorizing apparatus is provided with a control unit (not shown) including an electronic circuit. The control unit provides a water supply valve 46 and a drain valve 47 provided in the liquid storage unit 5 and a valve provided in the stock solution supply flow path 70. 72, 73, a pump 81 provided in the liquid supply flow path 8, a fan 43 provided in the air suction path 42, various sensors described later, and the like are controlled.

  In this bubble cleaning and deodorizing apparatus, the air to be deodorized and cleaned is sucked from the suction port of the duct of the suction path 42, and the air path 1 in the main body casing 4, that is, the upstream path 11, the communication portion 40 a, and the downstream path 12 is directed downward. Although it is discharged | emitted from the discharge port 45 through the path | route 12a (blower part 6) and the upward path | route 12b, a deodorizing washing | cleaning is performed in the process which passes the inside of this main body casing 4, and it demonstrates below.

  In the upstream path 11, the foaming deodorizing unit 2 is disposed above the suction opening 41 through which air to be deodorized and cleaned is sucked. As shown in FIG. 2, the foaming deodorization part 2 includes a foaming part 21 and a contact part 22 that are formed of a void such as a breathable member or a porous material. The foaming part 21 is disposed in a portion above the suction opening 41 of the upstream path 11 so as to be substantially horizontal to the entire upstream path 11 in plan view, and the contact part 22 is located above the foaming part 21 through the space. Similarly to the foaming portion 21, the foaming portion 21 is disposed so as to be substantially horizontal over the entire upstream path 11 in plan view. The nozzle 82 of the liquid supply channel 8 is disposed in the space between the foaming part 21 and the contact part 22, and the deodorizing cleaning liquid L can be sprayed over the entire foaming part 21.

  The foaming part 21 is formed by sticking two layers of filters up and down. The lower filter is the holding layer 21a that holds the deodorized cleaning liquid L sprayed from the nozzle 82 of the liquid supply flow path 8, and the upper filter is the lower side of the foaming portion 21 (that is, the holding layer 21a). The deodorizing cleaning liquid L is foamed by the air sent from the side). As a filter, what is used for an air conditioning may be used, but the filter of the retention layer 21a uses a finer thing than the filter of the foaming layer 21b.

  The contact part 22 promotes the contact between the bubbles B generated in the foaming part 21 and the air to be deodorized and cleaned, and is composed of a single layer filter. As the filter of the contact portion 22, the same filter as the filter of the foam layer 21 b of the foam portion 21 is used.

  Examples of the voids that form the foamed portion 21 and the contact portion 22 include porous members, for example, non-woven fabrics, knitted fabrics, cotton, sponges, wool, steel scrubbers, and those having a honeycomb structure. It is done. In the case of one having a honeycomb structure, the contact property becomes high, and the generation of bubbles due to the addition of a surfactant is promoted. The voids are not particularly limited to those described above.

  Next, operation | movement of the bubble washing | cleaning deodorizing apparatus of this invention is demonstrated.

  First, the pump 81 of the liquid supply channel 8 is operated to spray the deodorizing cleaning liquid L stored in the liquid storage unit 5 to the foaming unit 21 of the foaming deodorization unit 2 and the fan 43 of the suction path 42 is operated. Then, the air to be deodorized and cleaned in the kitchen or the like is sucked into the main casing 4 through the suction path 42.

  The air to be cleaned and deodorized is sucked from the suction opening 41 at the lower end of the main casing 4 and blown upward through the upstream path 11. And the air blown upward passes through the foaming part 21 of the foaming deodorizing part 2 from below to above. At this time, the deodorizing cleaning liquid L held in the holding layer 21a by the air is While being pushed up, the pushed deodorizing cleaning liquid L is sent upward as bubbles B (that is, bubbles whose spherical surfaces are deodorizing cleaning liquid and filled with air) by the foaming layer 21b. Is.

  Here, the deodorizing cleaning liquid L will be described. The deodorizing cleaning liquid L facilitates the generation of air bubbles and decomposes the contaminants and the surfactant that adsorbs the odor-causing components and dirt contained in the air (hereinafter collectively referred to as pollutants). It is the aqueous solution containing the malodorous substance decomposition agent for doing. Malodorous substances mainly include hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, ammonia, trimethylamine, and acetaldehyde. These malodorous substances include acids, alkalis, oxidizing agents, reducing agents as deodorizing substances. Etc., and more specifically, sulfuric acid, chlorine dioxide, hydrogen peroxide, sodium hypochlorite, potassium permanganate, chlorinated isocyanuric acid, ozone water and the like. Of these, acidic solutions are effective for alkaline odor components such as ammonia and trimethylamine, alkaline solutions are effective for acidic odor components such as hydrogen sulfide, and odor components of aldehydes. A reducing agent such as sodium bisulfite is effective. In addition, chlorinated chemicals are effective for hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, ammonia, trimethylamine, garlic odor, and grilled meat odor, and chlorinated isocyanuric acid and sodium hypochlorite are particularly effective. . Moreover, using activated carbon slurry in which powdered activated carbon is mixed in the cleaning liquid is effective against odor components such as methyl mercaptan, methyl sulfide, and methyl disulfide.

  In this embodiment, the deodorizing cleaning liquid L is produced | generated by melt | dissolving the stock solution which contains the said surfactant and a chlorine type | system | group chemical | medical agent in high concentration in clean water.

  The bubble B generated in the foaming part 2 has a spherical surface that comes into contact with air and adsorbs the contaminant in the deodorizing cleaning liquid L on the surface. This adsorption is promoted by the contact part 22. That is, the bubble B comes into contact with the lower surface of the contact portion 22 and is pushed upward in the contact portion 22 by air from below and sent upward from the contact portion 22 in this way. The contact portion 22 becomes a resistance when passing through the contact portion 22, and the resistance against this resistance is obtained from the air blown upward from below, but at this time, it comes into contact with a large amount of air, and the air of the bubble B Contact is promoted.

  The bubble B sent to the upper part of the contact part 22 adsorbs contaminants by contact with air, and the adsorbed contaminants are decomposed with a chlorine-based chemical.

  Then, the air and bubbles blown to the upper end portion of the upstream path 11 flow into the downstream path 12 substantially horizontally via the communication portion 40a of the vertical partition plate 40, hit the inner wall of the blower section 6 of the downstream path 12 and travel. However, at this time, the bubbles B collide with the inner wall of the blower 6 and burst, and the deodorized cleaning liquid L and the air filled therein are separated. Thus, the bubble breaking part 2 (in this embodiment, the blowing part 6 of the blower part 6) that is perpendicular to the flow direction of the air flowing in the air flow path 1 (in the present embodiment, the direction of arrow A in the figure). By providing the inner wall facing the communicating portion, it is possible to introduce a surfactant into the deodorizing cleaning liquid L, and high-efficiency adsorption by the bubbles B is possible.

  The deodorized cleaning liquid L that has ruptured falls downward due to its own weight, and returns to the liquid storage section 5 through the lower opening 44b provided below the blower section 6 in the downstream path 12 and is collected.

  On the other hand, air flows into the upward path 12b from the lower end of the downward path 12a in the air blower 6, and is discharged from the discharge port 45 at the upper end of the upward path 12b. Most of the substance is adsorbed and removed by the bubbles B, and becomes clean air and is discharged from the discharge port 45.

  As described above, the foaming deodorizing unit 2 includes the foaming unit 21 including the holding layer 21a that holds the deodorizing cleaning liquid L therein and the foaming layer 21b that generates bubbles in the held deodorizing cleaning liquid L. The bubble B generated in the foaming part 21 adheres to the downstream side of the foaming part 21 and is configured with a contact part 22 for promoting the contact between the bubble B and air. In the present invention, the air flow path 1 is bent at a substantially right angle so that the bubble B is not discharged from the exhaust port 45 (that is, the main point) (that is, in the present invention) In the embodiment, the bubble breaking part 3 is further provided from the upstream path 11 to the downstream path 12 through the communication part 40a, so that the bulkiness of the bubbles B is constant (that is, up to the upper end part of the upstream path 11). The height of the filled portion of the bubble B is reduced. Compared with a cleaning apparatus such as a scrubber cleaning tower, the foaming portion 21 that holds the deodorizing cleaning liquid L is provided, and therefore the circulation amount of the deodorizing cleaning liquid L is also 0.2 to 1. 0.0 l / min (1.0 l / min for the conventional scrubber washing tower).

  Moreover, as shown in FIG. 4, you may install separately the liquid storage part 5 and the main body casing 4 of a bubble washing | cleaning deodorizing apparatus. If a large amount of deodorizing cleaning liquid L is accommodated in the liquid storage unit 5 and the weight increases, the liquid storage unit 5 may not be installed on the upper floor (second floor or higher) or the roof of the building. In such a case, the liquid storage unit 5 is installed on the basement, and the main body casing 4 is installed in a desired place such as a kitchen on the upper floor, and the liquid flow paths 51a, 51b and the liquid passages 51a, 51b and This can be handled by providing the liquid supply flow path 8.

The dimensional shape of the main casing 4 is designed for an air volume of 5 m ³ / min, and is a substantially square column having a cross-sectional area of approximately 0.8 m ² and a height of approximately 1 m.

  The foaming part 21 used the Filedon air filter PS / 600 (made by Nippon Vilene Co., Ltd.) for the holding layer 21a, and used the vinylock filter KMS90-50 (made by Toyo Cushion Co., Ltd.) for the foaming layer 21b.

  For the contact portion 22, a vinylock filter KMS90-50 (manufactured by Toyo Cushion Co., Ltd.) was used.

  In the deodorizing cleaning liquid L, a nonionic surfactant is preferable as a surfactant, and an isocyanuric acid derivative or sodium hypochlorite is preferable as a chlorinated agent. In this example, a nonionic surfactant (Daiwa Chemical Co., Ltd.) is used. And isocyanuric acid derivative powder (manufactured by Daiwa Chemical Industry Co., Ltd.) were dissolved in water so as to be 0.5 g / l respectively.

  The liquid storage unit 5 has an internal volume of 117 liters, and a total of 90 liters of deodorized cleaning liquid L is accommodated. The liquid level at this time is 300 mm. And as shown in FIG. 3, the liquid level measurement pipe | tube 52 is arrange | positioned adjacent to the side of the liquid storage part 5, and is connected with the liquid storage part 5 and a lower end part, This liquid level measurement pipe | tube An upper limit sensor 54 is provided at a position 300 mm from the bottom surface at 52 and a lower limit sensor 55 is provided at a position 150 mm from the bottom surface. These upper limit sensor 54 and lower limit sensor 55 are connected to the control unit described above. Here, the production | generation of the deodorizing washing | cleaning liquid in a present Example and the water supply / drainage of the liquid storage part 5 are demonstrated.

  First, water supply will be described. This is because when the lower limit sensor 55 detects that the liquid level of the liquid storage unit 5 has dropped below 150 mm, the control unit opens the water supply valve 46 to supply water to the liquid storage unit 5. Is called. And if the upper limit sensor 54 detects that the liquid level of the liquid storage part 5 rose to 300 mm or more, the water supply valve 46 will be closed by the control part and the water supply to the liquid storage part 5 will be complete | finished.

  Next, supply of the stock solution to the liquid storage unit 5 will be described. This opens a valve 72 provided in the stock solution supply flow path 70 every predetermined time by a timer built in the control unit, closes the valve 72 after a predetermined time, and conveys a predetermined amount of stock solution to the stock solution buffer unit 71. Next, the valve 73 is opened a predetermined time after the valve 72 is closed, and the valve 73 is further closed after a predetermined time, so that a predetermined amount of the stock solution is supplied from the stock solution buffer unit 71 to the liquid storage unit 5.

  Next, replacement of the deodorizing cleaning liquid in the liquid storage unit 5 will be described. When the drain valve 47 is opened every predetermined time (for example, every day) by the timer built in the control unit and the lower limit sensor 55 detects that the liquid level of the liquid storage unit 5 has dropped below 150 mm, the control unit As a result, the drain valve 47 is closed and drainage is completed. When the water supply valve 46 is opened and water is supplied to the liquid storage unit 5 and the upper limit sensor 54 detects that the liquid level of the liquid storage unit 5 has risen to 300 mm or more, the water supply valve 46 is closed by the control unit. Thus, the water supply to the liquid storage unit 5 ends. Then, the valve 72 provided in the stock solution supply channel 70 is opened and the valve 72 is closed after a predetermined time, and a predetermined amount of stock solution is conveyed to the stock solution buffer unit 71. Next, the valve 73 is opened a predetermined time after the valve 72 is closed and the valve 73 is closed after a predetermined time, and a predetermined amount of the stock solution is supplied from the stock solution buffer unit 71 to the liquid storage unit 5.

The air volume in the present embodiment is 5 m ³ / min.

  In this embodiment, the odor concentration before and after deodorization is measured for each watering amount at a Chinese restaurant where garlic odor is generated, that is, for 1 (l / min), 2 (l / min), and 51 (l / min). The results are shown in Table 1.

  The deodorization efficiency in normal use (watering amount 1 l / min) is 170. The deodorization efficiency after deodorization cleaning is 170. The deodorization efficiency is 97.7%, and high deodorization efficiency is obtained. It was.

It is sectional drawing of one Embodiment of this invention. It is the perspective view which a part of the part which provided the foaming deodorizing part of the upstream path same as the above was abbreviate | omitted. It is explanatory drawing explaining control by a control part same as the above. It is explanatory drawing at the time of arrange | positioning apart and separating a main body casing and a liquid storage part. It is sectional drawing of the washing | cleaning apparatus of the conventional scrubber washing tower.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air flow path 2 Foam deodorizing part 21 Foaming part 22 Contact part 3 Foam breaking part B Bubble L Deodorizing cleaning liquid

Claims (4)

  A foam deodorizing unit that generates bubbles formed of a deodorizing cleaning liquid in an air flow path through which air containing pollutants flows and adsorbs the pollutants contained in air flowing in the air flow paths to the bubbles to decompose the bubbles. A bubble cleaning and deodorizing device characterized by being arranged.   A foaming deodorizing part is disposed in the air flow path for generating bubbles made of a deodorizing cleaning liquid, and is disposed on the downstream side of the foaming part. The bubble cleaning deodorizing apparatus according to claim 1, wherein the bubble cleaning deodorizing apparatus comprises a contact portion made of a void for promoting contact with the bubble.   3. The bubble cleaning and deodorizing apparatus according to claim 2, wherein the foaming part is formed of a void that holds a deodorizing cleaning liquid therein and generates bubbles made of the deodorizing cleaning liquid.   The bubble cleaning deodorizing apparatus according to any one of claims 1 to 3, wherein a bubble breaking part is provided on the downstream side of the foaming deodorizing part.

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