KR102718199B1 - A Rapid Deodorizer Mixing and Contacting a Gas and a Liquid Closely - Google Patents

Abstract

The present invention relates to a close-contact rapid gas-liquid mixing deodorizer. The close-contact rapid gas-liquid mixing deodorizer comprises: a chemical injection module (12) formed in an inflow path (112) through which external polluted air is introduced and spraying a chemical solution; at least one gas-liquid mixing module (13, 15) which allows polluted air injected with a chemical solution to come into contact with each other and be mixed; at least one reactor (14, 16) which induces a reaction of polluted air mixed with the chemical solution; and a discharge module (17) which discharges polluted chemical solution or fine dust contaminated water.

Description

{A Rapid Deodorizer Mixing and Contacting a Gas and a Liquid Closely}

The present invention relates to a close-contact rapid gas-liquid mixing deodorizer, and more particularly, to a close-contact rapid gas-liquid mixing deodorizer capable of rapidly removing odor or fine dust from polluted air by bringing a chemical liquid into close contact with the polluted air containing odor or fine dust to be purified.

In industrial sites, water purification plants, sewage treatment plants, or construction sites, various types of foul odors or fine dust may be generated and pollute the air, and the generated polluted air needs to be removed by a purification device such as a deodorizer or scrubber. The polluted air can be purified by a chemical method, a biological method, or a physical method, and the chemical method removes foul odors from the polluted air using an acid or alkaline chemical solution. Various types of deodorizers or cleaning devices are known in this field, and Patent Publication No. 10-2013-0131171 discloses a pretreatment system for foul odor substances in a flushing prevention facility. In addition, Patent Registration No. 10-1653368 discloses a chemical solution cleaning deodorizing device. In order to efficiently remove foul odors or fine dust from polluted air, the injected chemical solution needs to come into close contact with the foul odor components or fine dust to capture the pollutants, and to flow rapidly along a predetermined path. However, the prior art does not disclose a deodorizer having such a structure.

The present invention is intended to solve the problems of prior art and has the following objectives.

Prior art 1: Patent publication number 10-2013-0131171 (Kia Motors Corporation et al., published on December 3, 2013) Pretreatment system for odorous substances in a water-washing prevention facility Prior art 2: Patent registration number 10-1653368 (Gongmyeong Environment Machinery Co., Ltd., published on September 9, 2016) Weak liquid cleaning deodorizing device

The purpose of the present invention is to provide a close contact type rapid gas-liquid mixing deodorizer that effectively captures and removes pollutants by closely contacting the foul odor or fine dust contained in polluted air while mixing it with a chemical liquid.

According to a preferred embodiment of the present invention, a dense contact type rapid gas-liquid mixing deodorizer comprises: a chemical solution injection module formed in an inflow path through which external polluted air is introduced and spraying a chemical solution; at least one gas-liquid mixing module for allowing polluted air injected with the chemical solution to come into contact with each other and mix; at least one reactor for inducing a reaction of polluted air mixed with the chemical solution; and a discharge module for discharging polluted chemical solution or fine dust contaminated water.

According to another suitable embodiment of the present invention, at least one gas-liquid mixing module comprises a primary gas-liquid mixing module comprising a plurality of contact chambers arranged in a circular manner and separated from each other in a fan-like shape in a circumferential direction with respect to a central portion; and a plurality of flow holes uniformly formed on the side surface of each contact chamber.

According to another suitable embodiment of the present invention, at least one gas-liquid mixing module comprises a rapid gas-liquid mixing unit having an overall cylindrical shape while being arranged separately from each other; and a second gas-liquid mixing module comprising a plurality of distributed outlet holes formed on a peripheral surface of the rapid gas-liquid mixing unit.

According to another suitable embodiment of the present invention, a plurality of contact chambers are connected to each other at a central portion, and a gas-liquid mixture component flowing into the central portion flows laterally through a plurality of flow holes.

According to another suitable embodiment of the present invention, the rapid gas-liquid mixing unit further comprises a demister disposed inside the unit.

According to another suitable embodiment of the present invention, the device further comprises an exhaust pipe for discharging air from which odor has been removed, wherein the exhaust pipe is connected to a scrubber.

According to another suitable embodiment of the present invention, the scrubber further comprises an external air mixing module installed in the stack.

The close-contact rapid gas-liquid mixing deodorizer according to the present invention effectively crushes the flocs of malodorous components so that the malodorous components or fine dust are captured by coming into close contact with the chemical liquid. The mixing deodorizer according to the present invention can be used independently as a deodorizer, or as a pretreatment of a scrubber or a similar cleaning device. In addition, the deodorizer according to the present invention can be used in various places for removing various types of malodors or fine dust, and is not limited by the type of chemical liquid, the installation location, or the intended use.

Figure 1 illustrates an embodiment of a close-contact rapid gas-liquid mixing deodorizer according to the present invention.
FIG. 2 illustrates an embodiment of a primary gas-liquid mixing module for a mixing deodorizer according to the present invention.
FIG. 3 illustrates an embodiment of a process in which a chemical liquid and air come into close contact in a primary gas-liquid mixing module for a mixing deodorizer according to the present invention.
FIG. 4 illustrates an embodiment of a secondary gas-liquid mixing module for a mixing deodorizer according to the present invention.
FIG. 5 illustrates an embodiment of a dispersion unit of a secondary gas-liquid mixing module for a mixing deodorizer according to the present invention.
Figure 6 illustrates an embodiment in which a mixed deodorizer according to the present invention is applied as a pretreatment device for a scrubber.

Below, the present invention is described in detail with reference to embodiments shown in the attached drawings, but the embodiments are for a clear understanding of the present invention and the present invention is not limited thereto. In the description below, components having the same drawing symbols in different drawings have similar functions and therefore will not be described repeatedly unless necessary for the understanding of the invention, and well-known components will be briefly described or omitted, but they should not be understood as being excluded from the embodiments of the present invention.

Figure 1 illustrates an embodiment of a close-contact rapid gas-liquid mixing deodorizer according to the present invention.

Referring to FIG. 1, the close-contact rapid gas-liquid mixing deodorizer comprises a chemical injection module (12) formed in an inflow path (112) through which external polluted air is introduced and spraying a chemical solution; at least one gas-liquid mixing module (13, 15) that allows polluted air injected with the chemical solution to come into contact with each other and be mixed; at least one reactor (14, 16) that induces a reaction of polluted air mixed with the chemical solution; and a discharge module (17) that discharges polluted chemical solution or fine dust contaminated water.

A deodorizer can be installed in various spaces where foul odors or fine dust are generated, and can capture and remove foul odors or fine dust from polluted air. The polluted air can be introduced into an inflow path (112) by an inflow induction facility such as a blower facility and introduced into an inflow housing (111). An inflow module (11) into which polluted air is introduced can be composed of an inflow housing (111) and an inflow path (112) that introduces polluted air into the interior of the inflow housing (111). The inflow housing (111) can have a cylindrical shape or a polyhedral shape, and polluted air introduced into the interior of the inflow housing (111) along the inflow path (112) can flow from the bottom to the top of the inflow housing (111). A chemical solution injection module (12) may be installed in the inflow path (112), and the chemical solution injection module (12) may have a function of injecting a chemical solution into polluted air, and the chemical solution may be various types of chemical solutions capable of capturing an odor component and separating it from the air, and for example, the chemical solution may be an acidic, neutral or alkaline compound containing a group similar thereto, such as caustic soda (NaOH), hypochlorous acid, SO ₃ H, NH ₂ or the like, and the present invention is not limited thereby.

The chemical liquid can be injected into the polluted air by the chemical liquid injection module (12), and for example, the chemical liquid can be sprayed into the inlet path (112) through which the polluted air flows. The chemical liquid injection module (12) can include at least one spray nozzle for spraying the chemical liquid, and the chemical liquid can be sprayed into the polluted air in the form of fine particles. Accordingly, the chemical liquid and the polluted air can be introduced together into the inlet housing (111) and flow upward. A first gas-liquid mixing module (13) can be arranged above the inlet housing (111), and the first gas-liquid mixing module (13) includes a first batch plate (131) and a gas-liquid contact unit (132) arranged above the first batch plate (131). The chemical liquid and polluted air flowing upward from the inlet housing (111) come into contact with each other while flowing in the gas-liquid contact unit (132), and accordingly, the malodorous components or fine dust contained in the polluted air can be captured in the chemical liquid and separated from the polluted air. The first gas-liquid mixing module (13) destroys the malodorous gas floc so that the malodorous gas comes into contact with the finely atomized chemical liquid and is captured. In this way, the primary gas-liquid mixing module (13) can have a function of allowing a gas such as polluted air and the finely atomized chemical liquid to come into close contact and be mixed. In the process of being in close contact by the primary gas-liquid mixing module (13), the malodorous components or fine dust captured in the chemical liquid can fall downward, and the remaining components can flow upward along the primary reactor (14). The primary reactor (14) can have an overall cylindrical shape, and can have a function of allowing the chemical liquid and polluted air, which are mixed upward, to flow upward. In the first reactor (14), the mixed liquid and polluted air can react with each other as they flow upward to capture odor components or fine dust, and the liquid particles that have increased in weight thereby fall downward and can be collected in the discharge module (17). The gas-liquid mixture of the liquid and polluted air that has flowed upward along the first reactor (14) can be introduced into the second liquid-liquid mixing module (15). The second liquid-liquid mixing module (15) can include a disc-shaped inlet plate (151) and a gas-liquid close contact unit (152) arranged on the upper surface of the inlet plate (151), and the gas-liquid mixture can flow along the gas-liquid close contact unit (152) through the inlet plate (151). The gas-liquid close contact unit (152) brings the liquid in the form of fine particles of the gas-liquid mixture into close contact with the polluted air, so that the liquid particles from the polluted air are sufficiently mixed with the odor or fine dust. In addition, the gas-liquid close contact unit (152) includes a droplet removal means such as a demister, thereby removing the droplets from the gas-liquid mixture. The gas-liquid mixture that is secondarily mixed while passing through the secondary chemical-liquid mixing module (15) can be reacted in the secondary reactor (16) to secondarily separate odor or fine dust from polluted air. The secondary reactor (16) can have an overall cylindrical shape, a polyhedral shape, or a similar shape, and can have a function of separating odor components or fine dust from polluted air while reacting the gas-liquid mixture. Air from which odor components are removed while passing through the secondary reactor (16) can flow along the exhaust induction pipe (161) and be discharged to the outside of the deodorizer. The exhaust induction pipe (161) can be connected to a scrubber or can discharge air into the atmosphere. When the exhaust induction pipe (161) is connected to the scrubber, the deodorizer can function as a pre-treatment device, and when air is discharged into the atmosphere through the exhaust induction pipe (161), the deodorizer can function as an independent deodorizing device. The chemical liquid that captures the malodorous component or fine dust in the inlet housing (111), the primary gas-liquid mixing module (13), the primary reactor (14), the secondary gas-liquid mixing module (15), or the secondary reactor (14) may fall downward due to its weight and collect on the bottom surface of the induction housing (111). In this way, the chemical liquid or fine dust-contaminated water that captures the malodorous component or fine dust can be collected in the drain unit (17). Specifically, a drain pipe (171) may be extended from the bottom surface of the induction housing (111) to allow the chemical liquid or contaminated water to flow to the drain unit (17). The liquid or contaminated water collected in the drain unit (17) may be discharged to the outside through an external drain pipe (172) or treated by an appropriate method. The drain unit (17) may include various means for discharging or flowing the liquid or contaminated water, such as a pump or a valve, and the present invention is not limited thereby.

FIG. 2 illustrates an embodiment of a primary gas-liquid mixing module for a mixing deodorizer according to the present invention.

Referring to FIG. 2, at least one gas-liquid mixing module (13, 15) includes a primary gas-liquid mixing module (13) comprising a plurality of contact chambers (21a to 21d) arranged in a circular shape and separated from each other in a fan shape in a circumferential direction based on a central portion; and a plurality of flow holes (23_1 to 23_N) uniformly formed on a side surface (22) of each contact chamber (21a to 21d). The primary gas-liquid mixing module (13) can be arranged between an inlet housing (111) and a primary reactor (14), and includes a batch plate (131) and a gas-liquid mixing unit (132). The batch plate (131) can have a circular shape, and a flange can be formed along a circular edge of the batch plate (131) to couple the inlet housing (111) and the primary reactor (14). The gas-liquid mixing unit (132) may include a plurality of contact chambers (21a to 21d), and may be composed of, for example, four contact chambers (21a to 21d). Each contact chamber (21a to 21d) may be composed of a fan-shaped ceiling surface extending from the center toward a circular edge or in a radial direction; an outer blocking surface extending downward from an outer edge of a cylindrical shape of the ceiling surface; an inner induction surface formed in the central portion; and both side surfaces (22). Specifically, each contact chamber (21a to 21d) may have a shape obtained by cutting a cylindrical shape along a radial direction in a direction perpendicular to the upper surface, and different contact chambers (21a to 21d) may have the same or similar shapes. In this way, the inner end portions of the plurality of contact chambers (21a to 21d) that form a cylindrical cake-shaped cut shape can be gathered together in the middle portion of the arrangement plate (131), and an empty flow space whose horizontal cross-section is fan-shaped can be formed between the adjacent contact chambers (21a to 21d). A plurality of flow holes (23_1 to 23_N) can be formed on both side surfaces (22) of each of the contact chambers (21a to 21d), and the plurality of flow holes (23_1 to 23_N) can be formed at the bottom of a portion that is 1/2 to 4/5 of the height of each side surface (22). The gas-liquid mixture flowing upward inside the inlet housing (111) can flow to the central portion of the arrangement plate (131) (F21), and thereafter, can flow to the central distribution space where the inner end portions of each of the contact chambers (21a to 21d) are gathered (F22); In the central distribution space, the gas-liquid mixture can flow while diffusing from the inside to the outside of each contact chamber (21a to 21d) and can flow to the outside of the contact chambers (21a to 21d) through the flow holes (23_1 to 23_N) formed on the side surface (22) (F23). The gas-liquid mixture flowing into each contact chamber (21a to 21d) can be divided into an upper flow portion and a lower flow portion due to the difference in specific gravity, and for example, an odor component can form an upper flow portion and a chemical liquid can form a lower flow portion. Compression and discharge can occur from the inside to the outside of each contact chamber (21a to 21d), and in this process, an odor component forming an upper flow portion can cause a capture reaction while making close contact with the chemical liquid forming the lower flow portion. In addition, the odor mixture dispersed in each contact chamber (21a to 21d) can be prevented from colliding with each other and the odor component and the finely atomized chemical liquid can be prevented from separating from each other. In addition, the sprayed chemical liquid can be separated into smaller particles so that the malodorous component and the separated chemical liquid particles can come into contact again, and the compression heat can be generated during the compression and discharge process through the flow holes (23_1 to 23_N) formed in the lower part of the side (22), so that the reaction can be accelerated. For the progress of this process, no separate energy supply is required, and the reaction can proceed by the blowing pressure. The captured chemical liquid, which has become heavy due to the capture of the malodorous gas, can flow to the outside of the contact chamber (21a to 21d) and then flow along the upper surface of the arrangement plate (131) (F24) and fall to the bottom surface of the inlet housing (111), and the malodorous component that has not been captured and the separated chemical liquid particles can flow upward toward the first reactor (14) (F25). This contact process of the malodorous component and the chemical liquid particle components inside and outside the contact chamber (21a to 21d) is described in detail below.

FIG. 3 illustrates an embodiment of a process in which a chemical liquid and air come into close contact in a primary gas-liquid mixing module for a mixing deodorizer according to the present invention.

Referring to FIG. 3, inside the contact chamber (21a), the malodorous component having a small specific gravity forms an upper flow portion, and the medicinal liquid particle component having a large specific gravity forms a lower flow portion. In the presented embodiment, a small circle indicated by a black circle represents an malodorous component, and a large circle indicated by a white circle represents a medicinal liquid particle component. In addition, a shape in which a small circle is inside a large circle represents a state in which the malodorous component is captured by the medicinal liquid particle component. A flow hole portion (22a) may be formed in the lower portion of the side surface (22), and a gas-liquid mixture may flow from the center toward the outside (F22) inside the contact chamber (21a) and from the inside of the contact chamber (21a) to the outside of the contact chamber (21a) (F23). In this process, since the flow hole formed in the flow hole portion (22a) is located at the bottom, the malodorous component forming the upper flow portion comes into contact with and reacts with the chemical liquid particulate component during the compression discharge process through the flow hole portion (22a), and thereby the malodorous component can be captured in the chemical liquid particulate component. The malodorous component that is not captured, some of the captured chemical liquid particulate components, or the chemical liquid component can flow toward the first reactor (F25), and some of the captured chemical liquid particulate components having a large specific gravity can fall downward during the process of flowing upward inside the first reactor. The odorous component or fine dust can be captured in the chemical liquid particulate component through various processes during the flow process, and the present invention is not limited thereby.

FIG. 4 illustrates an embodiment of a secondary gas-liquid mixing module for a mixing deodorizer according to the present invention.

Referring to FIG. 4, at least one gas-liquid mixing module (13, 15) includes a rapid gas-liquid mixing unit (41a to 41d) that is arranged separately from each other and has an overall cylindrical shape; and a secondary gas-liquid mixing module (15) formed with a plurality of distributed outlet holes (51_1 to 51_N) formed on the peripheral surface of the rapid gas-liquid mixing unit (41a to 41d). The secondary gas-liquid mixing module (15) includes a disc-shaped inlet plate (151) and a gas-liquid close contact unit (152) formed on the upper surface of the inlet plate (151), and the gas-liquid close contact unit (152) includes a plurality of rapid gas-liquid mixing units (41a to 41d). The inlet plate (151) may have a function of guiding a gas-liquid mixture flowing upward along the first reactor (14) to each rapid gas-liquid mixing unit (41a to 41d) while connecting the first reactor (14) and the second reactor (16). For example, four rapid gas-liquid mixing units (41a to 41d) may be separately arranged above the inlet plate (151), and the different rapid gas-liquid mixing units (41a to 41d) may have the same or similar shapes. Each rapid gas-liquid mixing unit (41a to 41d) may be formed of a fixed surface (151) that is connected to the inlet plate (151) while having an overall cylindrical shape; a ceiling surface (413) in the shape of a disk; a peripheral surface (412) on which a plurality of distributed discharge holes are formed; and an anti-vortex baffle (414) that divides the cylindrical peripheral surface (412) into a plurality of parts. A gas-liquid mixture can flow upward from the first reactor (14) (F41), and after being introduced into each rapid gas-liquid mixing unit (41a to 41d), can be discharged to the outside along the peripheral surface (412) and flow upward along the second reactor (16) (F42). The structure of each rapid gas-liquid mixing unit (41a to 41d) is described in detail below.

FIG. 5 illustrates an embodiment of a dispersion unit of a secondary gas-liquid mixing module for a mixing deodorizer according to the present invention.

Referring to FIG. 5, a demister (52) is further included that is placed inside the rapid gas-liquid mixing unit (41a to 41d).

The upper surface of the inlet plate of each rapid gas-liquid mixing unit (41a) can be fixed by a fixed plate (411), and a plurality of distributed outlet holes (51_1 to 51_N) can be uniformly formed on the peripheral surface (412). A demister (52) for removing droplets can be arranged inside the rapid gas-liquid mixing unit (41a), and the ceiling surface (413) can be detachably coupled to the upper portion of the peripheral surface (412) by a plurality of corrosion-resistant clip locking units (53). The vortex of the gas-liquid mixture flowing out through the distributed outlet holes (51_1 to 51_N) can be prevented by, for example, four square plate-shaped vortex prevention baffles (414) extending in the outward direction of the peripheral surface (412). Fine dust or liquid droplets can be removed from the gas-liquid mixture introduced into the interior of the rapid gas-liquid mixing unit (41a) by the demister (52), and the gas-liquid mixture sprayed from the interior of the rapid gas-liquid unit (41a) to the exterior can cause a reaction in which odorous components or fine dust are captured by the liquid fine particles as the gas-liquid mixture in the form of flocs is split by mutual collision disturbance. Thereafter, the gas-liquid mixture can be guided to the secondary reactor. In order to replace the demister (52), the ceiling surface (413) can be made of a separable structure, and the clip locking unit (53) can be made of a corrosion-resistant material such as polyethylene, but is not limited thereto.

Figure 6 illustrates an embodiment in which a mixed deodorizer according to the present invention is applied as a pretreatment device for a scrubber.

Referring to FIG. 6, the system further includes an exhaust induction pipe (161) for exhausting air from which odor has been removed, and the exhaust induction pipe (161) is connected to the scrubber. In addition, an external air mixing module (69) may be installed in the stack (S) of the scrubber. At least one deodorizer (10a, 10b) may be connected to the scrubber to have the function of a pretreatment. For example, two deodorizers (10a, 10b) may be connected to the scrubber in parallel, and the inlet paths of each deodorizer (10a, 10b) may be connected to an inlet (611) through which external air is introduced. The external air introduced into the inlet (611) may be distributed in two directions through a distribution pipe (612) and introduced into each deodorizer (10a, 10b) through the first and second inlet pipes (613a, 163b). Each deodorizer (10a, 10b) may have the structure described above, and contaminated air from which odor or fine dust has been removed from each deodorizer (10a, 10b) may be guided through the first and second exhaust induction pipes (161a, 161b) and flow into the collection pipe (621). The collection pipe (621) may be connected to a scrubber inlet pipe (622), and air to be purified may be introduced into the scrubber body (63) through the scrubber inlet pipe (622). A cleaning space may be formed in the scrubber body (63), and a flow control module (65) and a cleaning spray module (66) may be installed in the cleaning space. The air is purified by being washed by the cleaning spray module (66), and the purified air may be discharged to the outside through the stack (S) via a droplet removal module (68), such as a demister, installed in the exhaust induction space (67). An external air mixing module (69) may be installed in the stack, and the external air mixing module (69) may introduce external air into the stack (S) so that purified air is discharged into the atmosphere together with the external air. An operating module (P) including a pump for operating the scrubber may be installed. Scrubbers having various structures may be connected to the deodorizer (10a, 10b) according to the present invention, and the present invention is not limited thereby.

Although the present invention has been described in detail above with reference to the presented embodiments, those skilled in the art will be able to make various modifications and variations without departing from the technical spirit of the present invention by referring to the presented embodiments. The present invention is not limited by such modifications and variations, but is only limited by the claims attached below.

12: Liquid injection module 13, 15: Gas-liquid mixing module
14, 16: Reactor 17: Discharge module
21a to 21d: Contact chamber 22: Side
23_1 to 23_N: Flow holes 41a to 41d: Rapid gas-liquid mixing unit
51_1 to 51_N: Distributed outflow hole 52: Demister
69: Mixed air mixing module 112: Inlet path
161: Exhaust induction pipe

Claims (7)

A chemical injection module (12) formed in an inflow path (112) through which external polluted air flows in and sprays a chemical solution;
At least one gas-liquid mixing module (13, 15) for allowing contaminated air injected with a chemical solution to come into contact with each other and mix;
At least one reactor (14, 16) for inducing a reaction of contaminated air mixed with a chemical solution; and
Includes a discharge module (17) for discharging contaminated liquid or fine dust contaminated water,
A close-contact rapid gas-liquid mixing deodorizer comprising a primary gas-liquid mixing module (13), wherein at least one gas-liquid mixing module (13, 15) is arranged in a circular shape and is separated from each other in a fan shape in a circumferential direction based on a central portion; and a plurality of flow holes (23_1 to 23_N) uniformly formed on the side surface (22) of each contact chamber (21a to 21d). delete In claim 1, a close-contact rapid gas-liquid mixing deodorizer comprising a second gas-liquid mixing module (15) formed of a rapid gas-liquid mixing unit (41a to 41d) that is arranged separately from each other and has an overall cylindrical shape; and a plurality of distributed discharge holes (51_1 to 51_N) formed on the peripheral surface of the rapid gas-liquid mixing unit (41a to 41d). A close-contact rapid gas-liquid mixing deodorizer according to claim 1, characterized in that a plurality of contact chambers (21a to 21d) are connected to each other at a central portion, and a gas-liquid mixed component flowing to the central portion flows laterally through a plurality of flow holes (23_1 to 23_N). A close-contact type rapid gas-liquid mixing deodorizer according to claim 3, further comprising a demister (52) disposed inside a rapid gas-liquid mixing unit (41a to 41d). A close-contact rapid gas-liquid mixing deodorizer according to claim 1, characterized in that it further includes an exhaust induction pipe (161) for exhausting air from which odor has been removed, and the exhaust induction pipe (161) is connected to a scrubber. A dense contact type rapid gas-liquid mixing deodorizer further comprising an external air mixing module (69) installed in the stack (S) of the scrubber according to claim 6.