JP2006175336A - Wet gas purifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wet gas purifier having a substantially enhanced efficiency of adsorbing dust and harmful gases with a compact structure and intended to improve the cleaning performance and usability. <P>SOLUTION: In the wet gas purifier 13, two or more cyclone generators consisting of a head part taking in a fluid and allowing the fluid to flow along a circular passage and a spiral cylindrical part arranged below the head part and communicating with the circular passage are connected together in parallel. A gas to be treated and a cleaning solution are caused to flow so as to dissolve the gas in the cleaning solution, and the cleaning solution is stored in a cleaning solution tank 23, while the treated gas is discharged outside. A mist-capturing chamber 44 is formed outside a partition 22 constituting the cleaning solution tank. The gas to be treated is caused to flow over the upper surface of the cleaning solution tank so that mist 31 floating on the upper surface of the cleaning solution 24 in the cleaning solution tank heads toward the partition and that mist running over the partition and entering the mist-capturing chamber can be disposed of. The purifier is also equipped with a pump 45 returning, to the cleaning solution tank, the cleaning solution which, together with mist, flows into the mist-capturing chamber and is stored in the mist-capturing chamber. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wet gas purification apparatus for removing paint mist and other harmful substances in an indoor space where a painting operation or the like is performed.

  Patent Document 1 discloses a cyclone type wet cleaner in which water is added to a cyclone dust collection method to improve dust collection efficiency. The wet cleaner of Patent Document 1 supplies atomized water together with air containing dust to a cyclone dust collection chamber in the cleaner body in a spiral manner so that the dust is adsorbed onto the water.

  However, in the wet cleaner of Patent Document 1, the entire vacuum cleaner main body is configured as one dust collection chamber, and a cyclone is generated in the dust collection chamber to mix air and water containing dust. As the dust collection chamber for generating water becomes larger and the entire vacuum cleaner becomes larger, a sufficiently large dust collection efficiency cannot be improved.

  In view of this, the present inventor has proposed a gas purification apparatus that has a compact configuration and greatly increases the efficiency of dust and harmful gas adsorption by connecting a plurality of small cyclone generators in parallel (see Patent Document 2). This Patent Document 2 is a prior application of the present application, and includes a head part that takes in a fluid and flows along a circular flow path, and a spiral tube part that is provided below the head part and communicates with the circular flow path. A plurality of cyclone generators are connected in parallel, and the gas to be treated and the cleaning liquid are allowed to flow through each cyclone generator so that dust, paint mist, and harmful gases in the gas to be processed are adsorbed to the cleaning liquid and pass through the cyclone generator. A wet gas purification device is described in which the subsequent purification liquid is stored in a purification liquid tank below the purification liquid and the gas to be treated is released to the outside.

  According to Patent Document 2, the problem of greatly increasing the adsorption efficiency of dust and harmful gases with a compact configuration is solved.

Japanese Patent Laid-Open No. 9-253011 Japanese Patent Application No. 2003-157428

  The present invention, like Patent Document 2 proposed by the present inventor, solves the common problem of having a compact configuration and greatly increasing the adsorption efficiency of dust and harmful gases, and is proposed in Patent Document 2 described above. An object of the present invention is to provide a wet gas purification apparatus in which the configuration of the gas purification apparatus is used as a common main part and further improvements are made to improve purification performance and usability.

The invention according to claim 1 comprises a plurality of cyclone generators comprising a head part that takes in fluid and flows along a circular flow path, and a spiral tube part that is provided below the head part and communicates with the circular flow path. Connected in parallel, the gas to be treated and the purification liquid are passed through each cyclone generator to adsorb foreign substances and harmful substances in the gas to be treated to the purification liquid, and the purification liquid after passing the cyclone generator is purified liquid below it. In the wet gas purification apparatus that collects in the tank and discharges the gas to be processed to the outside, a mixing promoting filler is provided in the flow path of the mixed liquid of the purified liquid and the gas to be processed after passing through the cyclone generator. A wet gas purification apparatus is provided.

  A second aspect of the present invention provides a plurality of cyclone generators comprising a head part that takes in a fluid and flows along a circular flow path, and a spiral tube part that is provided below the head part and communicates with the circular flow path. Connected in parallel, the gas to be treated and the purification liquid are passed through each cyclone generator to adsorb foreign substances and harmful substances in the gas to be treated to the purification liquid, and the purification liquid after passing the cyclone generator is purified liquid below it. A wet gas purification device that collects in a tank and discharges a gas to be processed to the outside, and has a purification liquid pipe that connects the purification liquid tank and a sprayer above the cyclone generator, and is in the middle of the purification liquid pipe In a wet gas purification apparatus equipped with a purification liquid supply pump, a cleaning water pipe is connected to the purification liquid pipe through a switching valve, and an openable / detachable cover panel is provided on the upper surface of the purification liquid tank. Of the purification device Provided is a wet gas purification device characterized in that, when in use, the cover panel covers the upper surface of the purification liquid tank, and the switching valve is switched so that washing water can be sprayed to the cyclone generator through the washing water pipe. To do.

  According to a third aspect of the present invention, in the second aspect of the present invention, a drying fan is provided above the cyclone generator, and after the washing water is sprayed, air in the purifier is supplied from the lower side of the cyclone generator by the drying fan. The inside of the purification device is dried by sucking and passing through a cyclone generator and discharging from the upper side to the outside of the purification device.

  According to a fourth aspect of the present invention, there is provided a plurality of cyclone generators comprising a head portion that takes in a fluid and flows along a circular flow path, and a spiral tube section that is provided below the head section and communicates with the circular flow path. Connected in parallel, the gas to be treated and the purification liquid are passed through each cyclone generator to adsorb foreign substances and harmful substances in the gas to be treated to the purification liquid, and the purification liquid after passing the cyclone generator is purified liquid below it. In a wet gas purification device that collects in a tank and discharges a gas to be treated to the outside, a mist collecting chamber is formed outside a partition wall that constitutes the purification liquid tank, and the mist floating on the upper surface of the purification liquid in the purification liquid tank The gas to be treated after passing through the cyclone generator is made to flow toward the upper surface of the purification liquid tank so that the mist is directed toward the partition wall, and the mist that has entered the mist collection chamber across the partition wall can be collected and disposed of. This mist collection room Providing a wet gas cleaning apparatus characterized by the flows into with mist cleaning liquid collected in the mist collecting chamber provided with a pump for returning the cleaning liquid tank.

  According to a fifth aspect of the present invention, there are provided a plurality of cyclone generators comprising a head portion that takes in fluid and flows along a circular flow path, and a spiral tube section that is provided below the head section and communicates with the circular flow path. Connected in parallel, the gas to be treated and the purification liquid are passed through each cyclone generator to adsorb foreign substances and harmful substances in the gas to be treated to the purification liquid, and the purification liquid after passing the cyclone generator is purified liquid below it. In the wet gas purification device that collects in the tank and discharges the gas to be processed to the outside, the gas to be processed after passing through the cyclone generator is discharged to the outside after passing through the hygroscopic material layer and the activated carbon layer subsequent thereto. A wet gas purification apparatus is provided.

  According to a sixth aspect of the present invention, there are provided a plurality of cyclone generators comprising a head part that takes in a fluid and flows along a circular flow path, and a spiral tube part that is provided below the head part and communicates with the circular flow path. Connected in parallel, the gas to be treated and the purification liquid are passed through each cyclone generator to adsorb foreign substances and harmful substances in the gas to be treated to the purification liquid, and the purification liquid after passing the cyclone generator is purified liquid below it. In a wet gas purification device that accumulates in a tank and discharges a gas to be treated to the outside, the purification liquid in the purification liquid tank is circulated through a filter composed of a biological filter medium layer that collects microorganisms and an activated carbon layer that adsorbs harmful substances. Provided is a wet gas purification apparatus which is integrally provided with a liquid cleaning means.

  According to the invention of claim 1, by using a plurality of cyclone generators, the diameter of the spiral flow of each cyclone generator is reduced to increase the centrifugal force, and foreign matters and harmful substances in the gas to be treated, That is, the adsorbability of dust, mist and harmful gas, particularly fine mist and harmful gas can be enhanced. Further, for example, a small and compact configuration can be obtained by connecting the fluid intake ports of the cyclone generators upward or connecting the head portions in a stacked state. Furthermore, since the purification liquid falling from the cyclone generator is dispersed in the plurality of cyclone generators, foaming and turbulence and ripples in the water surface when colliding with the purification liquid surface of the purification liquid tank are reduced. As a result, since the mist is agitated and floats on the liquid surface without sinking in the purification liquid, the floating mist can be easily separated and removed. In particular, when processing a gas containing a large amount of mist, in the gas purification device having a configuration in which the gas purification devices are continuously arranged in a plurality of stages, the effect of collecting mist in the gas purification device in the first stage is enhanced.

  Furthermore, according to the invention of claim 1, in addition to the effect of using the plurality of cyclone generators, the filler for increasing the mixing action by increasing the gas-liquid contact area on the lower side (downstream side) of the cyclone generator Therefore, it is possible to clean the gas to be treated by reliably adsorbing mist and harmful gas that could not be adsorbed by the action of the cyclone by passing the filler. In this case, since the filler is provided on the lower side of the cyclone generator, both gas and liquid are supplied. Therefore, it is not necessary to provide a dedicated circulation system for supplying the cleaning liquid to the filler. In addition, by providing such a filler on the lower side of the cyclone generator, there is less foaming and turbulence and undulation of the water surface when the purification liquid falling from the cyclone generator collides with the purification liquid surface of the purification liquid tank. Become. As a result, since the mist is agitated and floats on the liquid surface without sinking in the purification liquid, the floating mist can be easily separated and removed.

  According to the invention of claim 2, as in the case of claim 1, the effect obtained by using a plurality of cyclone generators can be obtained, and in addition to this, the switching valve is switched when the gas purification device is not used. For example, by spraying tap water on the cyclone generator, the cyclone generator and the filler disposed below the cyclone generator can be easily washed. In this case, since the cleaning water is sprayed in a state where the purification liquid tank is covered with the cover panel, the washed water does not flow into the purification liquid tank, but flows on the cover panel as it is or is made harmless. And then drained to the outside. Therefore, the purification liquid in the purification liquid tank can be used as it is when the gas purification apparatus is operated next time. In this way, cleaning the inside of the purification device when the gas purification device is not used prevents the generation of microorganisms in the purification liquid remaining in the cyclone generator, the filler or the purification liquid supply pipe, and the generation of bad odors. Can be prevented.

  According to the invention of claim 3, the effect of claim 2 is obtained, and in addition to this, after the inside of the apparatus is washed with washing water, the air inside the apparatus is sucked by the drying fan and released to the outside. The inside can be dried quickly. In this case, the fan is arranged on the upper side of the cyclone generator so that the air flow by the drying fan flows from the lower side to the upper side with respect to the cyclone generator, that is, in the direction opposite to that during normal gas purification treatment. Therefore, even if a gas adsorbent such as activated carbon is disposed downstream of the cyclone generator (downstream during normal gas purification), the moist air that has passed through the cyclone generator during cleaning Without passing through activated carbon, it is possible to prevent a decrease in adsorption capacity due to moisture adhering to the activated carbon.

  According to the invention of claim 4, as in the case of claim 1, the effect obtained by using a plurality of cyclone generators can be obtained, and in addition to this, the mist adsorbed to the cleaning liquid can be easily separated. The effect that it can be obtained. That is, the mist floating on the liquid surface of the purification liquid tank is moved over the partition wall by the gas flow of the gas to be treated, and then swept into the adjacent mist collection chamber, and the mist entering the mist collection chamber is collected by a filter, for example. . This filter can be removed to process the mist. The purification liquid that flows into the mist collection chamber together with the mist is returned to the purification liquid tank by the pump. Thereby, the liquid level position of a purification liquid tank can be kept constant.

  According to the invention of claim 5, as in the case of claim 1, the effect obtained by using a plurality of cyclone generators is obtained, and in addition, the gas to be treated after passing through the cyclone generator is activated carbon. By passing through the mist, it is possible to adsorb the mist and harmful gas that could not be adsorbed to the purification solution by the cyclone generator with activated carbon, and to prevent the release to the outside. In this case, since there is a hygroscopic material layer before the activated carbon layer, moisture can be removed from the gas to be treated flowing into the activated carbon layer, and a decrease in the adsorption ability of the activated carbon can be suppressed. The hygroscopic material can be used repeatedly by heat treatment or natural drying.

  According to the invention of claim 6, as in the case of claim 1, the effect obtained by using a plurality of cyclone generators can be obtained, and in addition to this, microorganisms generated in the purification liquid tank are removed and a bad odor is obtained. Can be suppressed. In this case, although microorganisms can be adsorbed only with activated carbon, the microorganisms can be adsorbed and removed more reliably by using a biological filter medium in combination. Such a filter made of biological filter material and activated carbon and a pump for circulating the purification solution in the purification solution tank through this filter are provided integrally with the gas purification device, so that the purification solution is extracted and carried to another place. Without taking the troublesome method of removing microorganisms, it is possible to easily remove microorganisms and prevent the generation of bad odors by circulating the purification solution constantly or periodically during use or when the gas purification apparatus is not used.

FIG. 1 is a perspective view of a single cyclone generator used in the present invention.
The cyclone generator 1 includes a head portion 2 for taking in fluid and a spiral tube portion 3 coupled to the lower side thereof. The head portion 2 is configured by an intake port 4 provided on a side surface (front side in the drawing), a straight channel 5 following the intake channel 4, and a circular channel 6 following the straight channel 5. The upper surfaces of the straight flow path 5 and the circular flow path 6 are covered with a cover plate (not shown). The spiral tube portion 3 communicates with the circular flow path 6 of the head portion 2 and is formed on the lower side thereof.

The fluid flows from the inlet 4 on the side surface of the head portion 2 as indicated by the arrow A, and flows out from the outlet 7 at the lower end of the spiral tube portion 3 as indicated by the arrow B. In this case, the entire upper surface of the head portion 2 is covered with the cover plate, and the side intake 4 is opened. Instead of the side intake 4, the fluid may be taken into the end of the straight channel 5 from the upper surface. In this case, the intake port 4 on the side surface is closed, and the cover plate on the upper surface of the inlet portion of the straight channel 5 is cut away to open the intake port 9 (FIG. 2).

FIG. 2 is an explanatory view of the operation of the cyclone generator.
The fluid that flows in from the fluid inlet 4 on the side surface of the head portion 2 as indicated by the arrow A (or as indicated by the arrow A ′ from the inlet 9 on the upper surface) flows on the straight flow path 5, It becomes a swirl flow, and then flows downward as indicated by an arrow B from the outlet 7 at the lower end as a spiral cyclone flow downward in the spiral tube portion 3. A cover plate 8 covers the upper surfaces of the straight flow path 5 and the circular flow path 6.

FIG. 3 is a configuration diagram of a purification unit in which a plurality of cyclone generators are connected in parallel.
A purification unit 10 is configured by connecting a plurality of (in this example, five) cyclone generators 1 in parallel. The head portions 2 of the cyclone generators 1 are connected to each other, and fluid is taken in as shown by an arrow A ′ from an intake port 9 opened on the upper surface of the head portion. Spill. A purification liquid sprayer 11 is provided above the purification unit 10 and sprays the purification liquid (water or gas absorption liquid). The sprayed cleaning liquid flows into each cyclone generator from the fluid inlet 9 of each cyclone generator 1 together with the gas to be treated including mist, malodor and harmful gas, and flows as a cyclone in the spiral tube portion 3. In the meantime, mist, harmful gases, etc. are adsorbed to the cleaning liquid.

FIG. 4 is a top view of the purification unit.
A purification unit 10 is formed by connecting the head portions 2 of the cyclone generators 1. A fluid intake 9 opens at the end of the straight flow path 5 of the head portion 2. A notch groove 12 is formed at a position corresponding to the side of the head portion 2 opposite to the intake port 9. By connecting the head part 2, the intake 9 of one head part and the notch groove 12 of the head part connected to the head part 2 are continuously increased, so that the intake 9 is substantially enlarged and the linear flow path 5 is lengthened. . Thereby, while making the shape of each cyclone generator 1 compact, the linear flow path 5 can be lengthened to obtain a sufficient flow velocity to generate a strong vortex and enhance the cyclone effect. In other words, while ensuring a sufficient length of the straight flow path, the cyclone generators can be made as close as possible to reduce the length in the connecting direction, thereby forming a compact purification unit.

  The plate 8 may cover the upper surface of the circular flow path 6 and the spiral cylindrical portion 3 communicating with the circular flow path 6, and the upper surface of the straight flow path 5 may include a part of the circular flow path 6 and open the whole.

FIG. 5 is a perspective view of a multistage purification unit in which purification units are combined in multiple stages.
In this example, four purification units 10 shown in FIG. 4 are used. The head portions 2 of the purification unit 10 are stacked to form a two-stage purification unit, and the two two-stage purification units are opposed to each other so as to form a high mountain shape at the center. By using the multi-stage purification unit in which the head portions 2 are stacked in this way, each of the purification units 10 can have a compact configuration in the longitudinal direction (X direction in the figure) and a direction perpendicular to the direction (in the figure). With respect to the (Y direction) as well, the spiral tube portions 3 can be made as close as possible to obtain a compact shape.

FIG. 6 is a basic configuration diagram of a wet gas purification apparatus according to the present invention.
The wet gas purification device 13 has a device main body 14 that forms a casing, and the inside thereof is divided into a cyclone chamber 16 and an exhaust chamber 17 by an upper partition wall 15. A suction duct 19 having a suction port 18 at the end is connected to the cyclone chamber 16. In the cyclone chamber 16, a multistage purification unit 20 is provided in which the purification units 10 of FIG. A spreader 21 composed of a shower nozzle or the like is provided above the multistage purification unit 20 composed of a plurality (20 in this example) of cyclone generators.

  A purification liquid tank 23 partitioned by a lower partition wall 22 is formed below the multistage purification unit 20 in the cyclone chamber 16. A cleaning liquid 24 is stored in the cleaning liquid tank 23. The cleaning liquid 24 is water or an absorbing liquid. The absorbing solution is a chemical solution that adsorbs coating mist, odor or harmful gas well. The purification liquid 24 in the purification liquid tank 23 is sucked by a purification liquid supply pump 26 that circulates and supplies the purification liquid, and is dispersed from the spreader 21 to the multistage purification unit 20 via the purification liquid piping 25.

For example, an explosion-proof exhaust motor 27 is provided in the upper portion of the exhaust chamber 17. An exhaust duct 29 having a discharge port 28 at the end is connected to the exhaust motor 27. A substantially horizontal deflection plate 30 is provided in the middle of the exhaust chamber 17. The deflection plate 30 is disposed above the lower partition wall 22 and guides the airflow so that the air direction on the liquid surface of the purification liquid tank 23 faces the lower partition wall 22. Thereby, the mist 31 floating on the liquid surface of the purification liquid 24 is caused to flow toward the lower partition wall 22 constituting the purification liquid tank 23.
A baffle plate 55 that reverses the direction of airflow deflection is provided above the deflection plate 30. When the airflow strikes the deflection plate 30 and the baffle plate 55, the moisture contained in the airflow adheres and is removed.

The gas purification action when the wet gas purification device 13 having the above-described configuration is used is as follows.
By driving the exhaust motor 27, room air is sucked in from the room where the painting work or the like is performed as indicated by an arrow P, and is taken into the gas purification device 13 as indicated by an arrow Q. The indoor air indicated by the arrows P and Q is a gas to be treated as defined in the claims, and includes dust, paint mist, foreign matter such as odor and harmful gas, harmful substances, and the like. The gas to be treated flows into each cyclone generator of the multistage purification unit 20 as a mixed fluid together with the purified liquid sprayed from the sprayer 11. Due to the action of the cyclone flow in the cyclone generator, mist or harmful gas in the gas to be treated is adsorbed by the purification liquid and dropped into the purification liquid tank 23 below. The gas to be treated from which mist and harmful gases have been adsorbed and removed flows in the exhaust chamber 17 as indicated by the arrow R, and is discharged to the outside as indicated by the arrow S through the exhaust duct 29 and the exhaust port 28. The mist 31 floating on the liquid surface of the cleaning liquid tank 23 is swept away by the air flow indicated by the arrow R and is collected by hitting the lower partition wall 22. The accumulated mist 31 may be scooped out and removed in this state, or may be collected and processed in the adjacent space after getting over the lower partition wall 22 by wind force as described later. .

FIG. 7 is an overall configuration diagram of the embodiment of the present invention.
In this example, a filler holder 32 is provided below the multistage purification unit 20 and a filler 33 is packed therein. The filler is made of, for example, a plastic molded body. When packed, air is sufficiently circulated so that excessive pressure loss does not occur, the gas-liquid contact area is increased, and the contact time is extended to increase the gas. The member has a shape that enhances the liquid mixing action and allows the gas to be sufficiently adsorbed by the liquid. The filler 33 is accommodated on a support plate 54 made of a porous plate or a mesh material. The gas to be processed and the purification liquid that have passed through the multistage purification unit 20 pass through the filler 33 and the support plate 54 and drop into the purification liquid tank 23 below the filler 33 and the support plate 54. By providing such a filler 33 on the lower side of the cyclone generator of the multi-stage purification unit 20, the mist and harmful gas that could not be adsorbed by the action of the cyclone pass through the filler 33 and are reliably adsorbed to the purification liquid. The gas to be treated can be cleaned. In this case, since the filler 33 is provided below the cyclone generator, both gas and liquid are supplied. Therefore, it is necessary to provide a dedicated circulation system for supplying the cleaning liquid 24 to the filler 33. Absent. Further, by providing such a filler 33 on the lower side of the cyclone generator, foaming and turbulence and undulation of the water surface when the purifying liquid falling from the cyclone generator collides with the purifying liquid surface of the purifying liquid tank 23. Less. As a result, since the mist 31 is agitated and floats on the liquid surface without sinking in the purification liquid, the floating mist can be easily separated and removed.
Other configurations and operational effects are the same as in the example of FIG.

FIG. 8 is an overall configuration diagram of another embodiment of the present invention.
A three-way switching valve 34 is provided in the cleaning liquid pipe 25 and a water pipe 35 is connected thereto. A cover plate 38 that is slidable and removable is provided on the upper surface of the cleaning liquid tank 23. The cover plate 38 is provided with a drain pipe 39 for discharging water accumulated on the upper surface thereof. A drying fan 36 is provided in the apparatus main body 14 above the multistage purification unit 20 in the cyclone chamber 16. The drying fan 36 is always covered with a shutter 37 during the gas purification process, and the inside of the apparatus main body 14 is sealed. The exhaust chamber 17 is provided with a gas adsorption filter 42 composed of an activated carbon layer 40 and a dehumidifying material layer 41 below it. The hygroscopic material layer 41 is, for example, silica gel, glass fiber, pebbles, ceramic, or other porous members.

  In the above configuration, during normal gas purification processing, the cover plate 38 is removed, the three-way switching valve 34 is switched to the purification liquid tank side, and the sprayer 11 and the purification liquid tank 23 are connected. In this state, as described with reference to FIG. 6 above, the gas to be treated is introduced into the cyclone chamber 16 as indicated by the arrow Q while the purification liquid is being sprayed from the spreader 11 and discharged through the exhaust chamber 17 as indicated by the arrow R. To do. In this case, since the exhaust chamber 17 is provided with the gas adsorption filter 40, the gas to be treated after passing through each gas purification device 10 composed of a cyclone generator passes through the activated carbon layer 40 and is adsorbed to the purification liquid by the cyclone generator. The activated mist layer 40 can adsorb mist and harmful gas that could not be exhausted, and can prevent release to the outside. In this case, since the hygroscopic material layer 41 is in front of the activated carbon layer 40, moisture can be removed from the gas to be treated flowing into the activated carbon layer 40, and a decrease in the adsorption ability of the activated carbon can be suppressed. The hygroscopic material can be used repeatedly by heat treatment or natural drying.

  In the configuration of FIG. 8, the inside of the apparatus main body can be cleaned while the gas purification process is stopped. When performing the cleaning process, the exhaust motor 27 is stopped and the upper surface of the purification liquid tank 23 is covered with the cover plate 38. The spreader 11 is connected to the water pipe 35 by switching the three-way switching valve 34 to the water pipe 35 side. In this state, tap water is introduced into the purification liquid pipe 25 as indicated by an arrow W through the three-way switching valve 34 and sprayed from the sprayer 11 into the cyclone chamber 16. Thereby, the inside of each cyclone generator of the multistage purification | cleaning unit 20 is wash | cleaned with the inside of the dispersion | distribution device 11 and the purification liquid piping 25 connected to this. The washed tap water is dropped on the cover plate 38 and discharged to the outside through the water distribution pipe 39.

  Instead of connecting the water pipe to the three-way switching valve, it may be connected to a tank or the like in which cleaning water is stored in advance. Further, a cleaning liquid may be used instead of water. When connecting to other than the water supply pipe, the cleaning water pipe can be connected to the purification liquid pipe 25 on the suction side of the circulation pump 26 and the cleaning water can be sent to the spreader 11 by the circulation pump 26.

FIG. 9 is an explanatory diagram of the drying process after the cleaning process is performed by the purification apparatus of FIG.
As described above, after the cyclone chamber is washed with tap water or the like, a drying process is performed in order to quickly remove moisture remaining in the chamber. At this time, the circulation pump 26 and the exhaust motor 27 are stopped. Further, the suction duct 19 is closed, and no air flows into the apparatus main body 14 from the suction duct 19 side. On the other hand, the exhaust duct 29 is in an open state, and air can flow into the apparatus main body 14 from the outside through the exhaust duct 29 and the stopped exhaust motor 27.

In this state, the shutter 37 is opened and the drying fan 36 is driven. Thus, outside air is introduced as shown by the arrow V ₁ to the exhaust chamber 17, and flows into the cyclone chamber 16 as indicated by the arrow V ₂ through the filter 42. Where it passes through the cyclone generator multistage purification unit 20 absorbs water, is sucked into the drying fan 36 as shown by the arrow V _3, is released to the outside (arrow V _4). At this time, since the airflow for drying flows from the exhaust chamber 17 to the cyclone chamber 16 contrary to the normal gas purification, the humid air passes through the activated carbon layer 40 in the exhaust chamber 17 through the cyclone generator. There is no. Therefore, moisture does not adhere to the activated carbon and the adsorption capacity does not decrease.

FIG. 10A is an overall configuration diagram of another embodiment of the present invention.
In this example, a mist collecting chamber 44 is formed adjacent to the outside of the lower partition wall 22 constituting the purification liquid tank 23. A filter 43 for collecting mist is provided in the upper part of the mist collecting chamber 44. Due to the action of the deflection plate 30, the air flow R ₁ flowing below the upper partition wall 15 flows in a direction in which the mist 31 floating on the upper surface of the cleaning liquid 24 is pushed toward the lower partition wall 22. The pushed mist 31 passes over the lower partition wall 22 as indicated by an arrow G, enters the adjacent mist collection chamber 44, and is collected on the filter 43. The mist 31 collected on the filter 43 is discarded after the filter 43 is removed.

The cleaning liquid that has flowed into the mist collecting chamber 44 together with the mist 31 falls downward through the filter 43 as indicated by the arrow F. The purified liquid collected in the lower part of the mist collecting chamber 44 is returned to the purified liquid tank 23 as indicated by an arrow E by the return pump 45 through the return pipe 46. Thereby, the liquid level of the purification liquid tank 23 is kept constant. In this case, the liquid level sensor 53 may be provided in the mist collecting chamber 44, and when the liquid level rises to a predetermined level, the pump 45 may be driven to return the purification liquid to the purification liquid tank 23. When the liquid level in the collection chamber 44 is lowered to a predetermined level, the pump 45 is stopped. Alternatively, a liquid level meter may be provided in the purification liquid tank 23, and the pump 45 may be automatically operated when the liquid level in the purification liquid tank falls below a predetermined value.
FIG. 10B shows a modification of (A). In the example of (B), the filter 43 of the mist collecting chamber 44 is omitted. Similarly to (A), the mist 31 of the purification liquid tank 23 gets over the lower partition wall 22 as indicated by an arrow G and flows into the mist collection chamber 44 together with the purification liquid. The mist that flows in floats on the surface of the purification liquid in the mist collection chamber 44. As time passes, the liquid level in the purification liquid tank 23 decreases and the liquid level in the mist collecting chamber 44 increases. When the liquid level of the cleaning liquid tank 23 is lowered, the mist 31 cannot get over the partition wall 22 and the mist does not flow into the collection chamber 44. Therefore, when the liquid level in the purification liquid tank 23 is lowered to a certain level and the liquid level in the collection chamber 44 is raised to a predetermined level correspondingly, the pump 45 is driven to purify the collection chamber 44. The liquid is returned to the cleaning liquid tank 23. In this case, the liquid level in the mist collecting chamber 44 is detected by the liquid level sensor 53, and the pump 45 can be automatically driven when a predetermined upper limit position is reached.
When the pump 45 is driven, the liquid level in the cleaning liquid tank 23 rises, and when the liquid level in the mist collecting chamber 44 is lowered to a predetermined level correspondingly, the pump 45 is stopped. In this case, the liquid level in the mist collection chamber 44 is detected by the liquid level sensor 53, and the pump 45 can be automatically stopped when a predetermined lower limit position is reached.
In this way, by using the pump 45 and the liquid level sensor 53, the liquid levels of the cleaning liquid tank 23 and the mist collecting chamber 44 are repeatedly raised and lowered alternately so that one falls and the other rises within a certain range. A flip-flop-like operation can be automatically performed.
Most of the mist that has flowed into the mist collecting chamber 44 floats on the liquid surface, but a part of the mist is submerged in the cleaning liquid and settles on the bottom surface. In order to prevent the pump 45 from sucking the mist precipitated on the bottom surface of the mist collecting chamber 44 and returning it to the purification liquid tank 23, the suction port (opening end) of the piping 46 on the suction side of the pump 45 The distance H between the bottom surface of the mist collecting chamber 44 and the bottom surface of the mist collecting chamber 44 is set so as not to suck the mist precipitated on the bottom surface.
The mist floating on the liquid surface may be scooped up by hand with an appropriate tool or disposed of. Alternatively, the mist collection chamber 44 itself may be made of a removable container, and when the mist has accumulated, the mist is removed and removed. It may be disposed of.

FIG. 11 is an overall configuration diagram of still another embodiment of the present invention.
In this example, microorganisms that cause a bad odor of the cleaning liquid are removed. A purification liquid circulation pipe 50 is provided in the purification liquid tank 23. A filtration filter 49 and a circulation pump 51 are provided in the purification liquid circulation pipe 50. The filtration filter 49 includes a biological filter medium 48 and activated carbon 47. The biological filter medium 48 is a porous material in which microorganisms easily grow, and is made of, for example, glass fiber, pebbles, ceramics, or the like. By driving the pump 51 through the filtration filter 49 and circulating the purification solution as indicated by the arrow K, the microorganisms generated in the purification solution are adsorbed by the biological filter medium 48 and the activated carbon 49. Activated carbon 49 adsorbs harmful substances together with microorganisms. As a result, the microorganisms generated in the purification liquid are removed together with the harmful substances, and the malodor is eliminated. Such a purification liquid cleaning means 52 including the filtration filter 49, the purification liquid circulation pipe 50, and the circulation pump 51 is provided integrally with the gas purification apparatus 13.

Note that the microorganism removal process by circulating the purification liquid through the filtration filter 49 may be performed constantly while the gas purification apparatus is operating, or may be performed periodically. Further, the purified liquid that has passed through the filter 49 can be discharged to sewage or the like as it is without being returned to the purified liquid tank 23, after being subjected to a predetermined detoxification process or within a range that complies with waste liquid regulations.

  As mentioned above, although the example of embodiment of this invention was demonstrated based on FIGS. 6-11, each of these examples may be implemented independently or it may implement combining several arbitrary examples. it can.

The perspective view of the cyclone generator single item which concerns on this invention. The operation explanatory view of the cyclone generator concerning the present invention. The principal part block diagram of the wet gas purification apparatus using the some cyclone generator which concerns on this invention. The top view of the gas purification unit which connected the some cyclone generator. FIG. 5 is a perspective view of a multistage purification unit using a plurality of the purification units of FIG. 4. 1 is an overall configuration diagram of a wet gas purification apparatus according to the present invention. 1 is an overall configuration diagram of an embodiment of the present invention. The whole block diagram of another embodiment of this invention. Explanatory drawing of the drying process in embodiment of FIG. The block diagram of another embodiment of this invention. The whole block diagram of another embodiment of this invention.

Explanation of symbols

1: cyclone generator, 2: head, 3: spiral tube, 4: fluid inlet, 5: straight channel, 6: circular channel, 7: outlet, 8: cover plate, 9: fluid Inlet, 10: Purification unit, 11: Disperser, 12: Notch groove, 13: Wet gas purification device, 14: Main body, 15: Upper partition wall, 16: Cyclone chamber, 17: Exhaust chamber, 18: Suction port , 19: suction duct, 20: multistage purification unit, 22: lower partition wall, 23: purification liquid tank, 24: purification liquid, 25: purification liquid piping, 26: purification liquid supply pump, 27: exhaust motor, 28: exhaust Exit: 29: Exhaust duct, 30: Deflection plate, 31: Mist, 32: Filler holder, 33: Filler, 34: Three-way switching valve, 35: Water pipe, 36: Drying fan, 37: Shutter, 38: Cover Plate, 39: Drain pipe, 40 Activated carbon layer, 41: Dehumidifying material layer, 42: Gas adsorption filter, 43: Filter, 44: Mist collection chamber, 45: Return pump, 46: Return pipe, 47: Activated carbon, 48: Biological filter medium, 49: Filtration filter, 50: Purifying fluid circulation piping, 51: Pump, 52: Purifying fluid cleaning means, 53: Liquid level sensor, 54: Support plate, 55: Baffle plate.

Claims (6)

A plurality of cyclone generators composed of a head portion that takes in a fluid and flows along a circular flow path, and a spiral tube section that is provided on the lower side of the head section and communicates with the circular flow path are connected in parallel. The gas to be treated and the purifying liquid are passed through the generator to adsorb foreign substances and harmful substances in the gas to be treated to the purifying liquid, and the purifying liquid after passing the cyclone generator is stored in the purifying liquid tank below and treated gas. In the wet gas purification device that releases
A wet gas purification apparatus, wherein a mixing promoting filler is provided in a flow path of a mixed fluid of the purification liquid and the gas to be processed after passing through the cyclone generator. A plurality of cyclone generators composed of a head portion that takes in a fluid and flows along a circular flow path, and a spiral tube section that is provided on the lower side of the head section and communicates with the circular flow path are connected in parallel. The gas to be treated and the purifying liquid are passed through the generator to adsorb foreign substances and harmful substances in the gas to be treated to the purifying liquid, and the purifying liquid after passing the cyclone generator is stored in the purifying liquid tank below and treated gas. A purifying liquid pipe for connecting the purifying liquid tank and a sprayer above the cyclone generator, and a purifying liquid supply pump is provided in the middle of the purifying liquid pipe. In wet gas purification equipment,
A cleaning water pipe is connected in the middle of the purification liquid pipe via a switching valve, and an openable / detachable cover panel is provided on the upper surface of the purification liquid tank. When the purification apparatus is not used, the cover panel A wet gas purification apparatus characterized in that the upper surface of the purification liquid tank is covered and the switching valve is switched so that washing water can be sprayed to the cyclone generator through the washing water pipe.   A drying fan is provided on the upper side of the cyclone generator. After spraying the washing water, the drying fan sucks air in the purification device from the lower side of the cyclone generator and passes the cyclone generator to the outside of the purification device from the upper side. The wet gas purification device according to claim 2, wherein the purification device is discharged to dry the inside of the purification device. A plurality of cyclone generators composed of a head portion that takes in a fluid and flows along a circular flow path, and a spiral tube section that is provided on the lower side of the head section and communicates with the circular flow path are connected in parallel. The gas to be treated and the purifying liquid are passed through the generator to adsorb foreign substances and harmful substances in the gas to be treated to the purifying liquid, and the purifying liquid after passing the cyclone generator is stored in the purifying liquid tank below and treated gas. In the wet gas purification device that releases
A mist collecting chamber is formed outside the partition wall constituting the purification liquid tank, and the mist floating on the upper surface of the purification liquid in the purification liquid tank is processed after passing through the cyclone generator so as to face the partition wall. A gas is allowed to flow over the upper surface of the cleaning liquid tank, and the mist that has entered the mist collection chamber across the partition wall can be collected and disposed of, and flows into the mist collection chamber together with the mist and collected in the mist collection chamber. A wet gas purification apparatus comprising a pump for returning the purified liquid to the purified liquid tank. A plurality of cyclone generators composed of a head portion that takes in a fluid and flows along a circular flow path, and a spiral tube section that is provided on the lower side of the head section and communicates with the circular flow path are connected in parallel. The gas to be treated and the purifying liquid are passed through the generator to adsorb foreign substances and harmful substances in the gas to be treated to the purifying liquid, and the purifying liquid after passing the cyclone generator is stored in the purifying liquid tank below and treated gas. In the wet gas purification device that releases
The wet gas purification apparatus, wherein the gas to be treated after passing through the cyclone generator is discharged to the outside after passing through the hygroscopic material layer and the activated carbon layer subsequent thereto. A plurality of cyclone generators composed of a head portion that takes in a fluid and flows along a circular flow path, and a spiral tube section that is provided on the lower side of the head section and communicates with the circular flow path are connected in parallel. The gas to be treated and the purifying liquid are passed through the generator to adsorb foreign substances and harmful substances in the gas to be treated to the purifying liquid, and the purifying liquid after passing the cyclone generator is stored in the purifying liquid tank below and treated gas. In the wet gas purification device that releases
Wet gas purification characterized by integrally comprising a purification liquid purification means for circulating the purification liquid in the purification liquid tank through a filter comprising a biological filter medium layer for collecting microorganisms and an activated carbon layer for adsorbing harmful substances. apparatus.

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