KR100961721B1 - Gas scrubber using two aqueous solutions - Google Patents

Abstract

PURPOSE: A gas scrubber using 2 aqueous solutions is provided to discharge clear air to a vent, and to eliminate the specific smell of a disinfectant by purifying acidic gas with each chemical reaction. CONSTITUTION: A gas scrubber comprises the following: a first sewage disposal tank(100) in which a first filler(120) and a first purifying agent(A) for purifying the polluted air are accepted; a second sewage disposal tank(200) in which an injection nozzle(220) is installed, which sprays a second filler(240) and a second purifying agent(B) to an upper part of the second filter through a pipe line(310) and a transfer pump(300); a demister filter(270) eliminating moisture from second-purified air; a vent(230) for discharging air passing through the demister filter to outside. The first sewage disposal tank is isolated from a first purifying agent storage room and a second purifying agent storage room(102). The first purifying agent storage room is equipped with a bad smell gas injection pipe(110) which is supplied a polluted air, a perforated plate which is separated and installed to the top of the bad smell gas injection pipe, and a first water level sensor(130) for keeping a first purifying agent to the constant water level.

Description

Gas scrubber using two aqueous solutions

The present invention relates to a scrubber for purifying contaminated air by using an aqueous solution, and more particularly, the basic gas of the contaminated external air is purified by chemical reaction with an acidic aqueous solution and the acidic aqueous solution, respectively. The present invention relates to an aeration scrubber using two aqueous solutions that can remove not only the specific disinfectant smell.

Waste gases contaminated with odors and volatile organic chemicals (VOCs) from various industrial and environmental infrastructures are emitted into the atmosphere in large quantities, causing air pollution.

The main components of VOCs are organic acids, aldehydes, ketones, aromatic compounds, and the like. Representative odorous substances include sulfide-based odorous substances such as hydrogen sulfide and methyl mercaptan, and nitrogen-based odorous substances such as ammonia and amines.

Accordingly, the odor removal scrubber is installed in various industrial facilities and environmental infrastructures, and the conventional odor removal scrubber was sterilized and sterilized using an aqueous solution containing sodium hypochlorite (NaOCl), which is a basic disinfectant.

However, the conventional odor removal scrubber has excellent advantages in the purification of acidic components contained in the odor, but it is impossible to purify the basic components, and also generates a unique disinfectant odor contained in the purified air and releases it to the atmosphere. If you have a disadvantage that can cause discomfort to the general public.

The present invention has been made to solve the above problems, an object of the present invention is to clean the basic gas of the contaminated external air acidic aqueous solution, the acidic gas and the basic aqueous solution, respectively, so that clean air can be discharged to the outlet. In addition to providing an aeration scrubber using two aqueous solutions that can remove the unique disinfectant smell.

The present invention is the first purifier 120 and the primary purifier (A) for the primary purifying the contaminated air is contained in the first purifying tank 100 and the air purified through the first purifying tank (100) The second filler 240 and the secondary purifier (B) to be supplied through the interlocking pipe 210 to purify the second through the transport pipe 310 and the transport pump 300, the upper portion of the second filler 240 The second purification tank 200 is equipped with a spray nozzle 220 for spraying in the furnace, a demister filter 270 for removing water from the secondary purified air, and the day filter 270 In the aeration scrubber using two aqueous solutions including an outlet 230 for discharging air to the outside, the first purifying tank 100, the primary purifier (A) and secondary purifier (B) is The primary purifier storage chamber 101 and the secondary purifier storage chamber 102 are separated from each other so as to be stored, and the second purifying tank 200 includes the first purifying tank ( It is mounted on the top of the 100, the bottom surface is inclined and communicated to the secondary purifier storage chamber 102 is formed to collect the secondary purifier (B), the secondary purifier (B) and the second filler 240 Monitoring window 260 for visually checking whether there is an abnormality is configured to be mounted on one side, the primary purifier (A) is filled in the primary purifier storage room 101 at a predetermined level, and the primary Purifier storage chamber 101, the odor gas injection pipe that is supplied in the primary purifier (A) by receiving the contaminated air through a plurality of discharge holes 111 formed on the surface extending from the outer side of the lower ( 110, a perforated plate 121 spaced apart and mounted to an upper portion of the malodorous gas injection pipe 110, and a first water level sensing unit 130 for maintaining the primary purifier A at a predetermined level on one side thereof. Is mounted, the first filler 120 is submerged in the primary purifier (A) the odor gas It is seated on the perforated plate 121 so as to increase the contact time and deodorization efficiency with the primary purifier (A) by extending the residence time while subdividing the bubbles of contaminated air sprayed from the pipe 110, the linkage pipe 210 ) Includes a cap 211 which is installed at an acute angle in multiple stages at an upper end to prevent the secondary purifier (B) from flowing into the inside, and the secondary purifier storage chamber 102, the secondary purifier Including a second water level detection unit 250 for maintaining (B) at a constant water level, and the overflow prevention pipe 280 for preventing the secondary purifier (B) from flowing into the linkage pipe (210) It is characterized in that the configuration.

According to the present invention as described above, the basic gas of the contaminated outdoor air is purified by chemical reaction with the acidic aqueous solution and the acidic aqueous solution, respectively, so that it is possible to discharge clean air to the outlet as well as to remove the unique smell of disinfectant. There is an advantage that can be removed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a schematic cross-sectional view showing an entire aeration scrubber using two aqueous solutions according to a preferred embodiment of the present invention, Figure 2 is a detail of the first purification tank of the aeration scrubber using two aqueous solutions according to a preferred embodiment of the present invention 3 is a detailed cross-sectional view of a second purification tank of an aeration scrubber using two aqueous solutions according to a preferred embodiment of the present invention.

Aeration scrubber using two aqueous solution according to a preferred embodiment of the present invention is the first purification tank 100, odor gas injection pipe 110, the second purification tank 200, the transport pump 300, the injection nozzle 220 and The discharge port 230 is included, the discharge hole 111, the first filler 120, the first water level detection unit 130, the peristaltic pipe 210, the cap 211, the second filler 240, the second The water level detecting unit 250, the monitoring window 260, the demister filter 270, and the overflow prevention pipe 280 may be further included.

In addition, the first purification tank 100 and the second purification tank 200 to be described later, respectively, the primary purification agent (A) and the secondary purification agent (B) in the aqueous solution is stored, these purification agents (A, B) are the first purification tank The polluted air flowing into the interior of the 100 is purified to be discharged to the outlet 230.

The above-mentioned primary purification agent (A) and secondary purification agent (B) is a basic aqueous solution in which either sodium hydroxide (NaOH) or sodium hypochlorite (NaOCl) is mixed in water, the other is hydrochloric acid (HCl) or sulfuric acid (H ₂ SO ₄ ) is an acidic aqueous solution mixed with water.

For example, when the primary purification agent (A) is used as an aqueous sodium hypochlorite solution, the secondary purification agent (B) is used as an aqueous solution of hydrochloric acid.

In addition, it may be possible to use sodium hypochlorite in both the primary purifier (A) and the secondary purifier (B), but in this case, there may be a smell of disinfectant peculiar to sodium hypochlorite. It is preferable to remove the unique odor of the poison poison by using the acid-base neutralization reaction of the secondary purification agent (B).

1 and 2, the first purifier (A) is stored therein, the odor gas injection pipe 110 is formed extending from one side to the inside, as shown in Figure 1 and 2, such odor gas injection pipe 110 serves to spray contaminated outdoor air (eg, odor generated from sewage, livestock wastewater, manure, acid / base dust generated in a semiconductor manufacturing process) contaminated into the first purification tank 100, and Thus, as shown in the partial enlarged view of FIG. 2, the outer circumferential surface of the malodorous gas injection pipe 110 is preferably formed with a plurality of discharge holes 111.

In addition, the first filler 120 may be installed at the upper portion of the malodorous gas injection pipe 110 to promote the mixing action of the primary purifier A and the polluted outside air and to filter impurities contained in the outside air. As shown in the partially enlarged view of FIG. 2, the first filler 120 allows the outside air to flow into the interior of the first filler 120, and the first filler 120 falls downward. It is preferable that the perforated plate 121 is installed so as to be prevented.
The first filler as described above is preferably installed in a locked state inside the first purifier.

On the other hand, the first purification tank 100 is provided with a first water level detection unit 130 for adjusting the level of the primary purification agent (A) stored therein, the first water level detection unit 130 is shown in FIG. As shown, it is preferably installed inside the upper side of the first purification tank (100). In addition, by installing a pipe or a hose (H) in the first water level detection unit 130 may be to supply the primary purifier (A) into the first purification tank (100).

The first water level detection unit 130 receives the primary purifier (A) or saline solution from the pipe or hose (H) and supplies the inside of the first purifier 100, but the primary purifier (A) is When the water level rises to a certain level, the pipe or the hose H is blocked to prevent the primary purifier A from flowing into the first purification tank 100. In addition, the second water level detection unit 250 to be described later also operates on the same principle as the first water level detection unit 130.

The second purification tank 200 is a secondary purification agent (B) stored therein when the first purified polluted outside air flows into the interior through the peristaltic pipe 210 through the first purification tank 100 described above. Secondary purification.

In addition, the secondary purifier (B) stored in the second purification tank 200 as described above should always maintain a lower water level than the upper end of the linkage pipe 210, the reason for this is the first purification tank 100 described above This is because it should be mixed with the primary purification agent (A) stored in the inside of the c) to prevent the acid and the base from reacting and neutralizing.

Accordingly, it is preferable to prevent the acid-base neutralization reaction as described above by installing a second water level detection unit 250 in the second purification tank 200, and the second water level detection unit 250 is described above. Like the first water level detection unit 130 may also serve to supply the secondary purifier (B) to the interior of the second purification tank (200).

In addition, it is preferable that the cap 211 is installed on the upper end of the linkage pipe 210, the cap 211 is a secondary purifier (B) is injected from the injection nozzle 220 to be described later the first purification tank 100 It prevents the inflow into the inside of the box.

As described in more detail with respect to the cap as described above, as shown in the partially enlarged view of Figure 3, the outside air flowing from the first purification tank 100 passes and at the same time is injected from the injection nozzle 220 after the second Secondary purifying agent (B) falling down through the filler 240 is formed to be inclined downward inclined downward so as not to flow into the interior of the linkage pipe 210, it is installed in multiple stages.

In addition, the secondary purifier (B) is stored in the lower portion of the second purification tank 200, as shown in Figure 1, the transport pump 300 is provided separately in the outside and the transport pipe installed in the transport pump 300 ( It is transported to the upper portion of the second purification tank 200 through 310, the secondary purifier (B) thus transported is sprayed through the injection nozzle 220 installed on the upper portion of the second purification tank 200 to be purified first Mixed with air.

On the other hand, a second filler 240 is installed in the lower portion of the injection nozzle 220, the second filler 240 is the contact time as the secondary purifier (B) and the first purified air passes through the second filler. And increase the deodorization efficiency.

In addition, since the second filler 240 plays the same role as the first filler 120 described above, a detailed description thereof will be omitted.

Meanwhile, as illustrated in FIGS. 1 and 3, an outer circumferential surface of the second purification tank 200 is preferably provided with a monitoring window 260, and the monitoring window 260 includes the injection nozzle 220 and the first nozzle. It provides a convenience to visually check whether there is an abnormality of the two fillers 240, it may be a movement path of the worker during the maintenance of the injection nozzle 220 or the second filler 240.

On the other hand, as shown in Figure 1 and 3, the upper portion of the second purification tank 200 is formed with a discharge port 230 for discharging the outside air is completed, the lower portion of the discharge port 230 to the purified outside air It is preferable that a demister filter 270 is installed to remove moisture and fine dust contained therein. Since the demister filter 270 is a known technology, a detailed description thereof will be omitted.

Next, another embodiment of the present invention will be described with reference to FIG. 4.

In the aeration scrubber using two aqueous solutions according to another embodiment of the present invention, the primary purifier storage room 101 such that the primary purifier (A) and the secondary purifier (B) are stored in the first purification tank 100, respectively. And secondary purifier storage chamber 102 is characterized.

In addition, the bottom surface of the second purification tank 200 is inclined to one side, and the bottom surface of the inclined second purification tank 200 is in communication with the secondary purifier storage room 102.

If the secondary purifier (B) is stored in the interior of the first purification tank 100 as described above, the height occupied by the preferred embodiment of the present invention will be significantly reduced, it will be easy to install in a low floor.

Accordingly, the first water level sensing unit 130 is installed in the primary purifier storage chamber 101, and the second water level sensing unit 250 and the overflow prevention pipe 280 are installed in the secondary purifier storage chamber 102.

In addition, all the other components are the same as the above-described preferred embodiment of the present invention, detailed description thereof will be omitted.

On the other hand, the primary and secondary purification agent used in the embodiment of the present invention as described above is any one of sodium hydroxide (NaOH), sodium hypochlorite (NaOCl), hydrochloric acid (HCl), sulfuric acid (H ₂ SO ₄ ) Is an aqueous solution containing a reaction scheme between the chemicals used as the purifying agent and the contaminants contained in the contaminated air as shown in FIG. 5.

5, when the pollutant contained in the contaminated air generated in the place where the present invention is installed is hydrogen sulfide, sodium hydroxide, sodium hypochlorite, sulfuric acid, hydrochloric acid may be used as a purifying agent.

For example, when the primary purifying agent (A) uses hydrochloric acid and the secondary purifying agent (B) uses sodium hypochlorite, respectively, hydrogen sulfide contained in the air is discharged into the discharge hole 111 of the malodorous gas injection pipe 110 to hydrochloric acid. By primary purification, the primary purified air is introduced into the second purification tank 200 through the peristaltic pipe 210.

As described above, the first purified air introduced into the second purification tank 200 is secondaryly purified by sodium hypochlorite injected from the upper part of the second purification tank 200 and then discharged to the outlet 230. The reaction is not 100% reactive, so the contaminated air is purged twice.

In addition, the amount of contaminated air is purified in the second purification tank 200 more than the amount of purified in the first purification tank 100, the reason that the amount of purification in the second purification tank 200 is more than the injection nozzle 220 This is because the contact efficiency of contacting the contaminated air is higher because the secondary purifier 200 is finely sprayed by).

Meanwhile, as shown in FIG. 5, when the hydrogen sulfide and sodium hypochlorite react, water is generated so that the level of the secondary purifier B is increased by such water so as not to overflow into the peristaltic pipe 210. It will be good to install the overflow prevention pipe 280 that can discharge the secondary purifier (B) to the outside.

The best embodiments have been disclosed in the drawings and the specification. Herein, specific terms have been used, but they are used only for the purpose of illustrating the present invention and are not intended to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a schematic cross-sectional view showing an entire aeration scrubber using two aqueous solutions according to a preferred embodiment of the present invention;

Figure 2 is a detailed cross-sectional view of the first purification tank of the aeration scrubber using two aqueous solutions according to a preferred embodiment of the present invention,

3 is a detailed cross-sectional view of a second purification tank of the aeration scrubber using two aqueous solutions according to a preferred embodiment of the present invention;

4 is a schematic cross-sectional view of an aeration scrubber using two aqueous solutions according to another embodiment of the present invention;

FIG. 5 is a table showing a reaction scheme between contaminants included in medicines and contaminated air as a purifying agent in an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100-Septic tank 110-odor gas injection pipe

111-Exhaust vent 120-First filler

130-first level sensor

200-Secondary Purifier 210-Linked Tube

211-Cap 220-Spray Nozzle

230-outlet 240-second filler

250-second water level detector

260-view window 270-demister filter

280-Overflow piping

A-1 Secondary Purifier B-2 Secondary Purifier

H-piping or hose

Claims (6)

delete delete delete delete delete The first purifier 120 and the primary purifier (A) are contained therein for primary purification of the polluted air, and the air purified through the first purifier (100) is interlocked with the tube ( Injecting the second filler 240 and the secondary purifier (B) to the upper portion of the second filler 240 through the transport pipe 310 and the transport pump 300 for secondary purification received through 210. The second purification tank 200 equipped with the injection nozzle 220 for, the demister filter 270 for removing water from the secondary purified air, and the air passing through the day filter 270 In the aeration scrubber using two aqueous solutions comprising a discharge port 230 for discharging with, The first purification tank 100 is configured to be separated into a primary purifier storage chamber 101 and a secondary purifier storage chamber 102 so that the primary purifier (A) and the secondary purifier (B) are stored, respectively, The second purification tank 200 is mounted on the upper portion of the first purification tank 100, the bottom surface is inclined and communicated with the secondary purifier storage chamber 102 is formed so that the secondary purifier (B) is collected , The monitoring window 260 for visually checking the abnormality of the secondary purifier (B) and the second filler 240 is mounted on one side, The primary purifier (A) is filled at a predetermined level in the primary purifier storage chamber 101, The primary purifier storage chamber 101 is formed by extending from the lower outer side to the inner side and receiving the polluted air through a plurality of discharge holes 111 formed on the surface, and odor gas sprayed in the primary purifier (A) The injection pipe 110, the perforated plate 121 is spaced apart and mounted to the upper portion of the odor gas injection pipe 110, and the first water level detection unit for maintaining the primary purifier (A) at a certain level on one side 130 is mounted, The first filler 120 is submerged in the primary purifier (A) to extend the residence time while subdividing the bubbles of contaminated air injected from the odor gas injection pipe 110, the primary purifier (A) It is seated on the perforated plate 121 to increase the contact time and deodorization efficiency with, The linkage pipe 210 includes a cap 211 installed at an acute angle in multiple stages at the top to prevent the secondary purifier B from flowing into the inside, The secondary purifier storage room 102, the second water level detection unit 250 for maintaining the secondary purifier (B) at a constant water level, and the secondary purifier (B) flows into the peristaltic pipe (210). Aeration scrubber using two aqueous solution, characterized in that it comprises a flood prevention pipe 280 to prevent being.

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