KR20230149625A - Air internal circulation type odor removal and diffusion prevention device - Google Patents

Abstract

The present invention relates to an air internal circulation type odor removal and diffusion prevention device. This is installed inside the odor generating space to remove the generated odor and prevent it from spreading to the outside, and includes a plasma generator that creates ozone and hydroxyl radicals; an air curtain former that forms a vertically downward airflow, causes the ozone and hydroxyl radicals to join the airflow, and causes the ozone and hydroxyl radicals to remove bad odors; An adsorption shutter that opens and closes the odor generating space and adsorbs odor substances in a closed state is included.
The air internal circulation type odor removal and diffusion prevention device of the present invention, which is constructed as described above, blocks the outflow of odor by blowing ozone and hydroxyl radicals generated from a low-temperature plasma generator downward at high speed using the venturi effect to form an air curtain. Of course, sterilization and removal can be performed at the same time, and furthermore, by using an adsorption shutter that actively responds to changes in water level, it adsorbs and removes odors and prevents leaks, providing excellent odor treatment capabilities.

Description

Air internal circulation type odor removal and diffusion prevention device}

The present invention relates to an odor removal and diffusion prevention device installed at a place where odor occurs, and more specifically, to a device that processes odor more efficiently through the combined action of sterilization using low-temperature plasma and odor adsorption using an adsorption filter. It relates to an air internal circulation type odor removal and diffusion prevention device.

Sewage systems are basic facilities for preventing flooding and improving the environment for residents, and must function not only to preserve water quality in public waters but also as urban disaster prevention facilities. Sewage drainage plans using sewage systems are an important design matter for sewage systems and are comprehensively planned taking into account all conditions.

Looking at the development process of sewage systems, the first generation sewers improve the living environment and prevent flooding, the second generation sewers preserve water quality in public waters, the third generation sewers recover and develop waste resources, and the fourth generation sewers improve the versatility of sewers. It is characterized. Seoul City's sewage system is currently a 3rd generation sewerage system, and the reuse of sewerage such as advanced treatment facilities, sewage treatment water and sludge recycling is being promoted, and the goal is to become a 4th generation major sewerage system such as turning the treatment plant space into a rest area and deep sewer tunnels. So the plan is in progress.

Sewage can be divided into a combined type, in which wastewater and rainwater are discharged together, and a separate type, in which sewage and rainwater are discharged separately. However, in the case of a combined type, bad odors often leak out to the ground through manholes or rainwater drains, worsening the residential environment. The odor generated from sewage is a basic air pollution substance that causes mental stress and anxiety, and causes symptoms such as increased blood pressure, abnormalities in the reproductive system due to changes in hormonal secretion, decreased sense of smell, headache, and vomiting.

As a technology to treat odor from sewage, odor prevention traps (odor prevention cover, odor reduction screen, and odor prevention curtain) are widely used. However, odor prevention traps do not effectively block odors, and related complaints continue to occur.

Figure 1 is a diagram showing an example of a conventional sewer pipe 11.

The sewer pipe 11 is a facility that passes sewage flowing along a waterway, and in most cases, it is open to the outside as shown in FIG. 1. However, the inside of the sewer pipe 11 is always shaded, and when the water volume is not large, the water stagnates and a bad odor is likely to be generated inside. Of course, the odor generated from the sewer pipe (11) easily spreads to the surrounding area. Accordingly, in many cases, a blocking door is installed at the entrance of the sewer pipe 11.

However, even if a blocking door is installed, it cannot effectively block internal odors from escaping. Additionally, the blocking door cannot actively respond to changes in water level. For example, if the water level rises during rainfall, the blocking door cannot be opened only to the level of the water.

Meanwhile, in the field of agricultural and livestock products, bad odor and water and soil pollution arising from livestock manure are problems. In particular, odors generated from livestock farms easily spread through the wind to the surrounding area, greatly damaging the living environment. Accordingly, various methods have been proposed for a long time to remove odors in livestock houses.

For example, in the biocurtain method, as shown in FIG. 2, a biocurtain 18 is installed on one side of the livestock house 17, and odors generated within the livestock house 17 are extracted and treated through the biocurtain 18. has A chemical supply unit 19 for spraying chemicals is installed inside the biocurtain 18. The chemical supply unit 19 serves to spray a chemical that reduces odor that has passed through the biocurtain 18. However, the biocurtain method does not remove bad odors efficiently and is not aesthetically pleasing.

There is a need for a treatment device to efficiently remove odors generated at odor generating points such as sewage pipes or livestock sheds.

Domestic Registered Patent Publication No. 10-1941405 (Sewage odor removal system)

The present invention provides an air internal circulation type odor removal and diffusion prevention device that can simultaneously block odor outflow and sterilize and remove odor, and furthermore, absorbs odor using an adsorption shutter that actively responds to changes in water level. There is a purpose.

The air internal circulation type odor removal and diffusion prevention device of the present invention as a means of solving the problem for achieving the above object is installed inside the odor generating space to remove the generated odor and at the same time prevent it from spreading to the outside, A plasma generator that creates ozone and hydroxyl radicals; an air curtain former that forms a vertically downward airflow, causes the ozone and hydroxyl radicals to join the airflow, and causes the ozone and hydroxyl radicals to remove bad odors; An adsorption shutter that opens and closes the odor generating space and adsorbs odor substances in a closed state is included.

In addition, the air curtain forming machine; It includes an induction casing that has an inlet and an outlet through which air passes, and a blower installed in the induction casing that sucks air inside the odor-generating space through the inlet and then discharges it through the outlet. The induction casing includes: While the air exits the outlet, a pressure drop at the outlet is caused, forming a constriction where the ozone and hydroxyl radicals are guided to the outlet by the action of pressure and merge with the air.

Additionally, a guide means is provided on the side of the induction casing to provide a passage for the movement of ozone and hydroxyl radicals between the induction casing and the induction casing.

Additionally, a short cut hole is formed in the induction casing to allow ozone and hydroxyl radicals passing through the inter-passage to flow into the induction casing.

In addition, the adsorption shutter is; A shutter housing mounted on the side of the air curtain forming machine, a winding hub horizontally installed on the shutter housing so that it can rotate axially, a deployment motor that rotates the winding hub axially, and wound around the winding hub, according to the axial rotation of the winding hub. It is provided with a shutter body that is released and unfolded or rolled up to the bottom, a lifting guider that guides the lifting movement of the shutter body, and an odor adsorption unit installed on the shutter body and adsorbing odor.

Additionally, the shutter body extends horizontally and includes a plurality of shutter plates connected up and down.

Additionally, the shutter plate; They are spaced apart from each other and have the odor adsorption unit built in between them, and include an inner plate facing the odor generating space and an outer plate facing the outside, and the inner plate has a plurality of opening holes that open the odor adsorption unit to the odor generating space. is formed

In addition, the upper end of each shutter plate is provided with an upper connection part that is removably connected to the lower end of the shutter plate adjacent to the upper part, and the lower part is provided with a lower connection part that is detachably connected to the upper end of the shutter plate adjacent to the lower part. is prepared.

In addition, an end beam is further provided at the lower end of the shutter plate, which contacts the bottom surface of the odor generating space and provides support.

And, the adsorption shutter is; It is connected to the deployment motor, and further includes a sensor that detects the altitude at which the lower part of the shutter body should be located and transmits it to the deployment motor, allowing the deployment motor to adjust the height of the lower part of the shutter body.

The air internal circulation type odor removal and diffusion prevention device of the present invention, which is constructed as described above, uses the Venturi effect to blow ozone and hydroxyl radicals (-OH) generated from a low-temperature plasma generator downward at high speed to create an air curtain, It can block the outflow of bad odors as well as sterilize and remove them at the same time. Furthermore, it absorbs and removes bad odors and prevents leaks using an adsorption shutter that actively responds to changes in water level, so it has a good odor treatment ability.

Figure 1 is a diagram to explain problems with conventional sewer pipes.
Figure 2 is a diagram for explaining an example of a conventional livestock house odor treatment method.
Figures 3 and 4 are perspective views showing an air internal circulation type odor removal and diffusion prevention device according to an embodiment of the present invention applied to a sewer pipe.
Figure 5 is an enlarged perspective view of the odor removal and diffusion prevention device shown in Figure 3.
FIG. 6 is a diagram for explaining the configuration of the shutter body of FIG. 5.
Figure 7 is a diagram showing the detailed configuration of an air internal circulation type odor removal and diffusion prevention device according to an embodiment of the present invention.
Figures 8 and 9 are diagrams for explaining the operation method of the odor removal and diffusion prevention device according to an embodiment of the present invention.

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the attached drawings.

Basically, the malodor removal and diffusion prevention device 30 of the present invention is installed in a place where a bad odor occurs, and has the purpose of treating the bad odor generated in that place. ‘Treating odor’ means decomposing the odor-generating substances that cause odor and removing the odor itself.

Additionally, in this embodiment, as examples of 'bad smell', the bad smell of wastewater generated from sewage pipes and the bad smell of excrement generated from pig houses or livestock houses are used. However, it goes without saying that the device of this embodiment can be applied to any place where bad odors occur.

Figures 3 and 4 are perspective views showing the air internal circulation type odor removal and diffusion prevention device 30 applied to the sewer pipe 11 according to an embodiment of the present invention, and Figure 5 is a perspective view showing the odor shown in Figure 3. This is an enlarged perspective view of the removal and diffusion prevention device. In addition, Figure 6 is a diagram for explaining the configuration of the shutter body of Figure 5, and Figure 7 is a diagram showing the detailed configuration of an air internal circulation type odor removal and diffusion prevention device according to an embodiment of the present invention.

As shown, the malodor removal and expansion prevention device 30 according to this embodiment has the basic structure of a plasma generator 80, an air curtain former 40, and an adsorption shutter 50.

The air curtain former 40 and the plasma generator 80 are fixed to the bottom of the ceiling portion 11b of the sewer pipe 11 through a fixing plate 31. The fixing plate 31 is a structure tightly fixed to the bottom of the ceiling portion 11b and is in the form of a square plate of a certain thickness.

The plasma generator 80 is a low-temperature plasma generator mounted on the bottom of the fixing plate 31 and provides ozone and hydroxyl radical (-OH) through electric discharge. Ozone and hydroxyl radicals not only remove germs, viruses, and bacteria floating in the air, but also sterilize and decompose bad odors, and further remove fine dust and organic compounds. The plasma generator 80 itself is general and further description thereof will be omitted.

This plasma generator 80 is located in the upper center of the induction casing 41 and the guide plate 45, which will be described later. Ozone and hydroxyl radicals (hereinafter referred to as sterilizing substances) generated in the plasma generator 80 flow downward through the passage (46 in FIG. 7) and the short cut hole (41f), forming an air curtain in a mixed state with air. do.

The air curtain former 40 forms a vertically downward air flow and causes ozone and hydroxyl radicals to join the air flow, so that the ozone and hydroxyl radicals form an air curtain with the air to remove bad odors. .

This air curtain former 40 includes an induction casing 41, a blower 42, and a guide plate 45.

The induction casing 41 has a horizontally open inlet 41a and a vertically open outlet 41b, and accommodates the blower 42. The blower 42 is provided with a fan motor 42a and a blowing rotor 42b, and sucks the air inside the lower conduit 11 through the inlet 41a.

The air sucked in by the blower 42 passes through the induction casing 41 and then is ejected vertically downward through the outlet 41b. The cross-sectional flow area of the outlet (41b) is relatively small compared to the cross-sectional flow area of the inlet (41a). The air is accelerated while passing through the induction casing (41).

Additionally, the outlet 41b takes an inclined shape. In other words, as shown in FIG. 7, the virtual plane Z including the outlet 41b is inclined to have an included angle θ of approximately 45 to 60 degrees with respect to the horizontal plane. The reason for making the outlet inclined like this is to allow the sterilizing material coming down through the space 46 to merge more quickly with the main stream of air.

In particular, a throttling portion 41c is provided at the upper part of the outlet. The throttling portion 41c causes a pressure drop at the outlet while the air exits the outlet 41b, so that the sterilizing material is pulled to the outlet by the action of pressure and joins the air more actively. The flow cross-sectional area of the throttling portion 41c is naturally narrower than the flow cross-sectional area of the outlet 41b.

The air passing through the induction casing (41) gradually accelerates as it moves toward the outlet (41b), reaching its highest speed while passing through the throttling portion (41c), and then spreads and lowers the pressure after passing through the throttling portion (41c). This is generally due to the Venturi effect.

In addition, a number of short cut holes 41f are formed on the outlet side of the induction casing 41. The short cut hole 41f is a hole that allows a portion of the sterilizing substance passing through the passage 46 to flow into the induction casing 41. The sterilizing material that has passed through the short cut hole (41f) passes through the throttling portion (41c) in a mixed state with air and exits through the outlet (41b).

The air passing through the outlet (41b) has a vertical downward flow, forming an air curtain. After hitting the floor, the downward flow circulates through the odor-generating spaces 11e and 17e, as shown in FIGS. 8 and 9, and removes odorous substances.

The guide plate 45 is mounted on the side of the induction casing 41 and is a guide means that provides a passage 46 through which the sterilizing material passes between the induction casing and the induction casing. The interpassage 46 is a passage having a constant flow cross-sectional area, and guides the sterilizing material produced in the plasma generator 80 downward.

An external air inflow passage 69 is provided between the guide plate 45 and the fixing plate 31. The outside air inflow passage 69 is a passage that supplies outside air to the inside of the sewer pipe. The air flowing in through the outside air inflow passage 69 combines with the sterilizing material and promotes the downward flow of the sterilizing material.

Meanwhile, the adsorption shutter 50 is a shutter that opens and closes the odor generating spaces 11e and 17e and is opened or blocked as needed. The odor generating space (11e, 17e) is opened or blocked through the adsorption shutter (50). The adsorption shutter 50 can be used to prevent odors generated in the odor generating space from spreading to the outside.

For example, in the case of the sewer pipe 11, when the flow rate passing through the sewer pipe increases, the adsorption shutter 50 is opened, and when there is no sewage passing through the sewage pipe 11 (for example, during the dry season), the adsorption shutter (50) is opened. 50) is blocked. In the case of the livestock house 17, the suction shutter 50 can be opened, for example, when cleaning the entire livestock barn 17 or when sending out or bringing in livestock, and the suction shutter 50 is closed in normal times.

The adsorption shutter 50 includes a shutter housing 51, a winding hub 52, a deployment motor 53, a shutter body 60, an elevating guider 55, and an odor adsorption unit.

The shutter housing 51 is a structure disposed on the side of the air curtain former 40 and supports the winding hub 52 so that it can rotate about its axis. The configuration of the shutter housing 51 can be changed in various ways as long as it can support the winding hub 52.

The winding hub 52 is installed horizontally so as to be rotatable within the shutter housing 51, and one end is connected to the deployment motor 53, as shown in FIG. 4. The winding hub (52) rotates on its axis in both directions by the deployment motor (53).

The shutter body 60 is wound around the winding hub 52, and has a plurality of shutter plates 61 and end beams 67 as a blocking means that is released and deployed downward or rolled up according to the axis rotation of the winding hub.

The plurality of shutter plates 61 have the shape of an approximately rectangular plate extending horizontally and are connected up and down as shown in FIG. 6. Disassembly and assembly of the shutter plates 61 adjacent above and below are free.

The shutter plate 61 includes an inner plate 61a, an outer plate 61e, a side cap 63, and an adsorption filter 65 as an odor adsorption unit. The inner plate 61a and the outer plate 61e are plate-shaped members with a certain thickness, and are joined by bending the upper and lower ends overlapping each other. The roundly curved portions are the upper connection part (61h) and the lower connection part (61p).

The upper connection part 61h is located at the upper end of the shutter plate 61, and the lower connection part 61p is located at the lower end of the shutter plate 61. In addition, the upper connection part 61h provides an upper support groove 61f and an upper locking end 61g, and the lower connection part 61p provides a lower support groove 61m and a lower locking end 61n.

The curvature of the upper connection part 61h and the lower connection part 61p is the same, but the difference is that they are opened in opposite directions. For example, the upper support groove 61f of the upper connection part 61h is open to the outside (outside of the odor generating space), and the lower support groove 61m of the lower connection part 61p is open toward the odor generating space.

Accordingly, the upper locking end 61g is inserted into the lower support groove 61m of the shutter plate adjacent to the top, and the lower locking end 61n is supported by the upper support groove 61f of the shutter plate adjacent below. do. Also, as mentioned above, since the curvature of the upper connection part 61h and the lower connection part 61p are the same, the shutter plates 61 adjacent above and below can be folded. Overall, the shutter plate 61 can be wound.

Additionally, as shown in FIG. 6, a plurality of open holes 61b are formed in the inner plate 61a. The opening hole 61b is a hole that opens the internal space of the shutter plate 61 to the odor generating spaces 11e and 27e.

The side cap 63 is a member that seals both ends of the shutter plate 61 and can be opened and closed. For example, it is opened to replace the adsorption filter 65 installed inside.

And, an adsorption filter 65 is installed inside each shutter plate 61. The adsorption filter 65 adsorbs and removes odor-generating substances inside the odor-generating space. Odor-generating substances pass through the open hole (61b) and are adsorbed on the adsorption filter (65). The adsorption filter (65) is replaceable. When the life of the adsorption filter (65) has expired, open the side cap (63), replace the adsorption filter (65), and then close the side cap (63) again.

In addition, an end beam 67 is further installed below the lowermost shutter plate 61. The end beam 67 is in contact with the bottom surface 11a of the odor generating space when the shutter body 60 is fully deployed and provides support. This prevents the shutter plate 61 from being contaminated by the ground and supports the shutter body 60 at the same time.

A locking portion 67a is formed at the upper end of the end beam 67. The locking portion (67a) is a bent portion of the upper end of the end beam, and is inserted into the lower support groove (61m) of the lowermost shutter plate (61).

Reference numeral 55 is an elevator guider. The lifting guider 55 is a vertically extending straight member that guides the lifting movement of the shutter body 60 and supports the shutter body 60 at the same time. For example, this prevents the shutter body 60 from shaking back and forth due to wind.

Meanwhile, as shown in FIG. 7, a sensor 54 is mounted on one side of the shutter housing 51. The sensor 54 is connected to the deployment motor 53, determines the altitude at which the lower part of the shutter body should be located, transmits it to the deployment motor, and allows the deployment motor to adjust the height of the lower part of the shutter body.

For example, when the water level of sewage passing through a sewer pipe rises due to a flood, the sensor 54 detects the water level change and transmits the determined information to the deployment motor 53, so that the deployment motor 53 operates the end beam 67. ) is raised to an altitude above the sewage level. The blocking area of the shutter body 60 can be optimally adjusted through the sensor 54.

Figures 8 and 9 are diagrams for explaining the operation method of the odor removal and diffusion prevention device according to an embodiment of the present invention.

Figure 8 shows an example in which the odor removal and diffusion prevention device 30 of this embodiment is applied to the sewer pipe 11.

As shown, the shutter body 60 is completely lowered and blocks the sewer conduit 11. The odor inside the sewer pipe 11 is blocked by the shutter body 60 and hardly spreads to the outside.

In this state, when the air curtain former 40 and the plasma generator 80 are operated, the sterilizing material produced by the plasma generator circulates in the odor generating space 11e in a mixed state with air and removes the odor. At this time, outside air flows into the odor generating space 11e through the outside air inflow passage (69 in FIG. 7) and supplies oxygen to increase odor removal efficiency.

Figure 9 shows the odor removal and diffusion prevention device 30 applied to the livestock house 17. As shown, diffusion prevention devices 30 are installed on both sides of the livestock house. The shutter bodies 60 of both devices are completely closed. The air curtain former 40 and the plasma generator 80 operate to remove odorous substances inside the odor generating space 17e. In addition, outside air flows into the odor generating space 17e through the outside air inflow passage (69 in FIG. 7), thereby increasing odor removal efficiency.

Above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications can be made by those skilled in the art within the scope of the technical idea of the present invention.

11: Sewer conduit 11a: Bottom surface 11b: Ceiling part
11e: Odor generating space 17: Barn 17e: Odor generating space
18: Biocurtain 19: Chemical supply unit 30: Odor removal and diffusion prevention device
31: Fixing plate 40: Air curtain former 41: Induction casing
41a: Entrance 41b: Exit 41c: Throttle part
41f: Short cut hole 42: Blower 42a: Fan motor
42b: Blowing rotor 45: Guide plate 46: Passage between
50: Adsorption shutter 51: Shutter housing 52: Winding hub
53: Deployment motor 54: Sensor 55: Elevating guider
60: Shutter body 61: Shutter plate 61a: Inner plate
61b: Open hole 61e: Outer plate 61f: Upper support groove
61g: upper locking end 61h: upper connection 61m: lower support groove
61n: lower locking end 61p: lower connection 63: side cap
65: Adsorption filter 67: End beam 67a: Holding part
69: External air inflow passage 80: Plasma generator

Claims (10)

It is installed inside the odor-producing space to remove the generated odor and at the same time prevent it from spreading to the outside.
A plasma generator that creates ozone and hydroxyl radicals;
an air curtain former that forms a vertically downward airflow, causes the ozone and hydroxyl radicals to join the airflow, and causes the ozone and hydroxyl radicals to remove bad odors;
An adsorption shutter that opens and closes the odor generating space and adsorbs odor substances in a closed state,
Air internal circulation type odor removal and diffusion prevention device. According to paragraph 1,
The air curtain forming machine;
It includes an induction casing that has an inlet and an outlet and allows air to pass through, and a blower installed in the induction casing that intakes air inside the odor-generating space through the inlet and then discharges it through the outlet.
In the induction casing;
While the air exits the outlet, a throttling portion is formed that causes a pressure drop at the outlet and causes the ozone and hydroxyl radicals to be guided to the outlet by the action of pressure and merge with the air.
Air internal circulation type odor removal and diffusion prevention device. According to paragraph 1,
A guide means is provided on the side of the induction casing to provide a passage between the induction casing and the induction casing for the movement of ozone and hydroxyl radicals.
Air internal circulation type odor removal and diffusion prevention device. According to paragraph 3,
In the induction casing,
A short cut hole is formed that allows ozone and hydroxyl radicals passing through the passage to flow into the induction casing.
Air internal circulation type odor removal and diffusion prevention device. According to paragraph 1,
The adsorption shutter is;
A shutter housing mounted on the side of the air curtain former,
A winding hub installed horizontally on the shutter housing to enable axis rotation,
A deployment motor that rotates the winding hub,
A shutter body that is wound around the winding hub and is unwound and unfolded downward or rolled up according to the axis rotation of the winding hub;
A lifting guider that guides the lifting movement of the shutter body,
Equipped with an odor adsorption unit installed on the shutter body and adsorbing odor,
Air internal circulation type odor removal and diffusion prevention device. According to clause 5,
The shutter body is,
It extends horizontally and includes a plurality of shutter plates connected up and down,
Air internal circulation type odor removal and diffusion prevention device. According to clause 6,
The shutter plate is;
They are spaced apart from each other and have the odor adsorption unit built in between them, and include an inner plate facing the odor generating space and an outer plate facing the outside,
The inner plate is formed with a plurality of open holes that open the odor adsorption unit to the odor generating space,
Air internal circulation type odor removal and diffusion prevention device. According to clause 6,
The upper end of each shutter plate is provided with an upper connection part that is removably connected to the lower end of the shutter plate adjacent to the upper part, and the lower part is provided with a lower connection part that is removably connected to the upper end of the shutter plate adjacent to the lower part. ,
Air internal circulation type odor removal and diffusion prevention device. According to clause 5,
The lower end of the shutter plate is further provided with an end beam that contacts the floor of the odor generating space and provides support.
Air internal circulation type odor removal and diffusion prevention device. According to clause 5,
The adsorption shutter is;
It is connected to the deployment motor, and further has a sensor that determines the altitude at which the lower part of the shutter body should be located and transmits it to the deployment motor, allowing the deployment motor to adjust the height of the lower part of the shutter body,
Air internal circulation type odor removal and diffusion prevention device.

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