KR102230257B1 - Reducing system of air pollution source materials on road side comprising bus stop or school zone - Google Patents

Abstract

The present invention provides a roadside fine dust and nitrogen oxide reduction system including bus stops or school zones comprising: a nano-bubble generator for generating nano-bubbles by mixing water and air; a nano-bubble storage tank for storing nano-bubbles generated by the nano-bubble generator; and a standing nano-bubble sprayer installed on the roadside and spraying nano-bubbles supplied from the nano-bubble storage tank to the surroundings.

Description

Reducing system of air pollution source materials on road side comprising bus stop or school zone}

The present invention relates to a system for reducing fine dust and nitrogen oxides on the roadside including a bus platform or school zone, and more particularly, to measure the concentration of fine dust or NOx on the roadside including a bus platform or school zone in real time using a vehicle, and Information about this can be transmitted to the server to obtain information on generation of fine dust and NOx nationwide, and where it is determined that fine dust has occurred above the standard value, the standing nanobubble sprayer installed on the roadside is operated through the server to be used on the side of the road. It relates to a roadside air pollution source reduction system that provides an effect that contributes to preventing air pollution and improving public health by spraying fine bubbles to reduce fine dust.

The Ministry of Environment analyzes that foreign influence (China) accounts for 30% to 50% of the sources of fine dust, while diesel vehicles account for 29% based on the metropolitan area, and 41% of workplaces such as factories nationwide.

In particular, the concentration of fine dust in urban areas such as Seoul was found to be 4 ~ 11㎍/㎥ higher than the concentration of the roadside fine dust, compared to the urban atmospheric concentration, which was attributed to the effects of automobile exhaust gas and road scattering dust. appear.

Furthermore, roadside facilities such as school zones and bus platforms are places that are frequently used by children or the elderly who are vulnerable to health, and air pollutants such as fine dust and NOx are scattered into the air in large quantities, threatening public health and various problems such as environmental pollution. Is causing.

Currently, in order to cope with this problem, a method of removing fine dust scattering from the floor by attaching a spray device from the bottom of the vehicle is used by mobilizing a sprinkler. There is an urgent need to prepare a countermeasure against the pollution problem.

Accordingly, the present invention was conceived to solve the above problems, by operating a standing nanobubble sprayer installed on the roadside to spray nanobubbles on the roadside to use less water while using a secondary pollution problem such as road non-point pollution by water. It is an object to provide a system for reducing fine dust and nitrogen oxides along roads including bus platforms or school zones that provide effects that contribute to air pollution prevention and improvement of public health by efficiently reducing fine dust and NOx without generation.

The technical problem of the present invention as described above is achieved by the following means.

(1) a nanobubble generator for generating nanobubbles by mixing water and air; A nanobubble storage tank for storing the nanobubbles generated by the nanobubble generator; And a standing nanobubble sprayer installed on the side of the road and spraying nanobubbles supplied from the nanobubble storage tank around, wherein the nanobubble generator comprises:

Rotary shear mixer agitator 100 made of a gear-shaped impeller; A plurality of perforated disk-type collision plates are composed of multi-stage collision plates arranged on the shaft at regular intervals, and at least two of the multi-stage collision plates are slit-type collision plates having radially formed slits and collision surfaces. Vortex multi-stage impact unit 200 made; And an inlet having an inlet hole, a first swirling flow generator having a first spin hole, and a second swirling flow generator having a second spin hole, and bubbles passing through the swirling flow generator A multistage vortex nozzle 300 formed in a line with nozzle ends having a section whose diameter is reduced so as to be sprayed at high speed is connected in series,

A system for reducing fine dust and nitrogen oxides along a road including a bus platform or school zone, characterized in that three of the vortex multi-stage collision units are connected in series in a zigzag type.

(2) In the above (1),

The vortex multi-stage impact unit includes a first impact plate in which perforations are circularly arranged at the edge of the disk, a slit-type second impact plate in which slits and impact surfaces are alternately radially formed, a third impact plate in which a plurality of fine holes are formed on the disk surface, and a slit And a slit-type fourth collision plate in which the collision surfaces are alternately radially formed, a fifth collision plate in which a large number of micropores are formed on the disk surface, a slit-type sixth collision plate in which the slits and collision surfaces are alternately formed radially, and fine perforations. A system for reducing fine dust and nitrogen oxides on a roadside including a bus platform or school zone, characterized in that the seventh impact plates formed on a plurality of disk surfaces are sequentially arranged in a row in a vertical direction on the shaft.

(3) In the above (2),

The first swirl flow generator and the second swirl flow generator have a multistage cylindrical structure stacked or integrally formed with each other, and the diameter of the first swirl flow generator is smaller than the diameter of the second swirl flow generator. The first spin hole of the first swirl flow generator has a plurality of grooves formed clockwise or counterclockwise toward the inside, and the second spin hole of the second swirl flow generator is also formed clockwise or counterclockwise toward the inside. Roadside fine dust and nitrogen oxide reduction system including a bus platform or school zone, characterized in that it is configured to have a plurality of grooves.

As described above, according to the present invention, according to the present invention, the vertical nanobubble sprayer installed on the roadside is operated to spray the nanobubbles on the roadside to use less water, and secondary pollution problems such as road non-point pollution by water do not occur, and fine dust and By efficiently reducing NOx, it provides the effect of providing a roadside air pollution source reduction system that provides effects that contribute to air pollution prevention and national health improvement.

1 is an overall configuration diagram of a roadside air pollution source reduction system according to the present invention.
2A is a photograph and configuration diagram of a prototype showing an embodiment of a standing nanobubble sprayer according to the present invention.
Figure 2b is an explanatory diagram showing an installation example of the vertical nanobubble injector according to the present invention.
3 is a block diagram of a nanobubble generator according to the present invention.
4 is a block diagram of a rotary shear mixer stirrer of a nanobubble generator according to a first embodiment of the present invention.
5 is a block diagram of a rotating shear mixer stirrer of a nanobubble generator according to a second embodiment of the present invention.
6A and 6B are configuration diagrams of a vortex multi-stage collision of the nanobubble generator according to the first embodiment of the present invention.
7 is a diagram illustrating a configuration in which three vortex multi-stage collisions are connected in series in a zigzag structure according to the first embodiment of the present invention.
8 is a block diagram of a multi-stage vortex collision unit of a nanobubble generator according to a second embodiment of the present invention.
9A and 9B are schematic diagrams and photographs of a prototype of a multi-stage vortex nozzle of the nanobubble generator according to the first embodiment of the present invention.
10 is a block diagram of a multi-stage vortex nozzle of a nanobubble generator according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION The detailed description to be disclosed below together with the accompanying drawings is intended to describe exemplary embodiments of the present invention, and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details to provide a thorough understanding of the present invention. However, those of ordinary skill in the art to which the present invention pertains knows that the present invention may be practiced without these specific details.

In some cases, in order to avoid obscuring the concept of the present invention, well-known structures and devices may be omitted, or may be illustrated in a block diagram form centering on core functions of each structure and device.

Throughout the specification, when a part is said to "comprising or including" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. do. In addition, the term "... unit" described in the specification means a unit that processes at least one function or operation. In addition, "a or an", "one", "the" and similar related words are different from the present specification in the context of describing the present invention (especially in the context of the following claims). Unless indicated or clearly contradicted by context, it may be used in the sense of including both the singular and the plural.

In describing embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout the present specification.

The nano-bubble generator 1000 according to the present invention is fixedly installed at a position close to the roadside, as shown in FIG. 1, and uses a pump 1200 to pump water from the raw water tank 1100 to the nano-bubble generator 1000. ). At this time, preferably, a filter 1300 is installed at the rear end of the pump 1200 to remove foreign substances from the raw water.

The nanobubble generator 1000 receives filtered water and air and generates 200nm-class nanobubbles therefrom. The nanobubbles are temporarily stored in the nanobubble storage tank 1400 and are sprayed into the atmosphere after being urged with a standing nanobubble sprayer 1500.

As an example of the configuration of the nanobubble injector 1500 according to the present invention, a side view and a plan view along with a photograph of a prototype are shown in FIG. 2A. The nano-bubble injector 1500 according to the present invention includes a body portion 1510 having a decorative surface 1511 on its surface, an injection portion 1520 attached to the upper surface of the body portion, and an injection nozzle 1530 mounted on the injection portion. Includes.

The nanobubble injector 1500 according to the present invention is installed upright in the vicinity of a school zone (top) or a bus platform (bottom), as shown in FIG. 2B, and is configured to spray nanobubbles around like a fountain.

Hereinafter, the nanobubble generator 1000 according to the present invention will be described in more detail.

As shown in FIG. 3, the nanobubble generator 1000 includes a rotary shear mixer stirrer 100, a vortex multistage collision 200, and a multistage vortex nozzle 300. At this time, a compression tank T for storing the compressed fluid may be separately placed at the rear end of the rotary shear mixer agitator 100. The nanobubble generator 1000 may be driven by receiving a signal from a server including a control unit. The control unit 400 may control the operation to be automatically turned on and off at a certain time, and it is also possible to control the operation of the nanobubble generator 1000 whenever necessary when receiving a driving command signal from the server.

The rotary shear mixer stirrer 100, the vortex multi-stage impact unit 200, and the multi-stage vortex nozzle 300 are connected in series in series. Therefore, as the air and filtered water first enter the rotary shear mixer agitator 100, a primary bubble of 20 to 50 μm is formed, and the primary bubble is secondarily introduced into the vortex multi-stage impact unit 200. It becomes a secondary microbubble having a size of 1 to 20 μm, and the secondary microbubble is thirdly introduced into the multi-stage vortex nozzle 300 and finally becomes a nano-bubble having a size of 200 nm.

Hereinafter, the content of the present invention will be described in more detail with reference to FIGS. 4 to 9. However, engines, power transmission devices, compression tanks, pumps, valves, coolers that can be generally adopted except for the rotational shear mixer agitator 100, the vortex multistage impact plate 200, and the rotational impact collapsing nozzle 300 Various connectors and the like are well-known components in the art, and detailed descriptions thereof will be omitted.

Hereinafter, only the nanobubble generator 1000 comprising the rotary shear mixer stirrer 100, the vortex multi-stage impact unit 200, and the multi-stage vortex nozzle 300, which are important components of the present invention, will be described in detail.

Figure 4 is a configuration diagram of the impeller constituting the primary rotary shear mixer agitator 100, to form a primary bubble of 20 ~ 50㎛.

To this end, the rotary shear mixer agitator 100 according to the present invention primarily mixes gas (for example, air) and water, compresses it, and sends it to the vortex multistage impact unit 200. For compression, an impeller 110 rotated by a motor is used, and in the present invention, a cogwheel shape as shown in FIG. 4 is used.

In another embodiment, in the present invention, the rotary shear mixer agitator 100 includes a rotor 10 rotated by a motor and a stator 20 coupled to each other as shown in FIG. 5.

The rotor 10 includes a first rotor 2 and a second rotor 4 protruding from an upper surface in a disk shape. The first rotor 2 is formed to protrude in a circular shape on the upper surface of the disk, and has a slit 1 through which bubbles pass at regular intervals.

In addition, the second rotor 4 is formed to protrude in a circular shape on the disk like the first rotor, but is configured to surround the first rotor 2 at the outside, but similarly, a slit through which bubbles pass at regular intervals. (3) is formed.

The stator 20 is disposed to face the rotor, and a first stator 6 and a second stator 8 arranged in a circular shape are protruding from the disk. The first stator 6 and the second stator 8 also have slits 5 and 7 formed at regular intervals to allow air bubbles to pass therethrough.

The first stator 6 faces to be disposed between the primary rotor 2 and the secondary rotor 4 constituting the rotor, and the second stator 8 is disposed outside the secondary rotor 4 To provide a passage for air bubbles.

As described above, in the rotary shear mixer agitator 100 according to the present invention, the water flowing into the center and the gas entering the inlet are mixed, and the air bubbles are destroyed while passing through the slit 1 of the rotating first rotor. It is discharged through the slit 5 of the stator 6.

The water containing air bubbles passing through the slit 5 enters the slit 3 of the rotating second rotor, and the air bubbles are further destroyed and become finer bubbles. Through this process, fine bubbles of 20 to 50 μm are formed and are discharged through the slit 7 of the second stator 8.

6A and 6B are configuration diagrams of the vortex multi-stage impact unit 200 of the present invention.

The vortex multi-stage collision unit according to the first embodiment of the present invention includes a multi-stage collision plate in which a plurality of disk-type collision plates with perforations are formed on the shaft at regular intervals, as shown in FIG. 6A. Preferably, at least two or more of the multi-stage collision plates are formed of a slit-type collision plate having a radially formed slit (S) and a collision surface (P) (third form).

In a preferred embodiment of the present invention, the vortex multi-stage impact unit 200 includes a first impact plate 201, a slit, and an impact surface in which a perforated hole is arranged in a circular shape at the edge of the disk as shown in FIG. 6B in the case 210. The slit-type second collision plate 202 formed in a radial shape alternately, the third collision plate 203 having a plurality of fine holes formed on the disk surface, and the slit-type fourth collision plate 204 formed in a radial shape alternately with slits and collision surfaces. ), the fifth impact plate 205 in which a number of fine holes are formed on the surface of the disk, the sixth slit type impact plate 206 in which the slits and the collision surfaces are alternately radially formed, and a seventh collision in which a number of fine holes are formed on the disk surface The plates 207 are sequentially arranged in a row in a vertical direction on the shaft.

The arrangement of the slit-type impact plates 202, 204, 206 of the present invention alternately with other micro-perforated impact plates 203 and 205 is advantageous for forming bubbles, but flow velocity flow. It is to solve the problem that it is difficult to induce a spiral flow by lowering the value. Accordingly, the vortex multi-stage impact unit 200 having the configuration as shown in FIG. 6B is preferable in that it can induce an increase in flow velocity and a helical flow, as well as good bubble formation.

In the present invention, two or more, preferably three (200a, 200b, 200c) are connected in series as shown in FIG. 7, and the vortex efficiency is improved by connecting in a zigzag type. Of course, the installation space can be reduced to be suitable for vehicle mounting.

In another embodiment, the vortex multistage impact unit 200 according to the second embodiment of the present invention includes a disk-shaped primary impact plate 210 and a secondary impact plate 220 in a housing as shown in FIG. 8. It is arranged so as to face each other.

The primary impact plate 210 has slits 211 and impact surfaces 212 formed at regular intervals. Part of the microbubbles supplied from the rotating shear mixer agitator 100 at the front end through the slit 211 collides with the collision surface 212, and a part passes through the slit 211, and passes through the slit 211. The fine bubbles that have passed are again introduced into the secondary impact plate 220 at the rear end.

The secondary impact plate 220 also has slits 221 and impact surfaces 222 formed at regular intervals. However, the secondary impact plate 220 is characterized in that the primary impact plate 210, the slits and the impact surface are arranged to be out of order. Therefore, the microbubbles passing through the slit 211 of the primary impact plate 210 collide with the impact surface 222 of the secondary impact plate 220 and are crushed to a finer size, and the crushed microbubbles are slit ( 221) to become secondary microbubbles with a size of 1 to 20 μm.

9 is a block diagram of a multi-stage vortex nozzle 300 according to the present invention.

The multi-stage vortex nozzle 300 according to the first embodiment of the present invention includes an inlet portion 302 having an inlet hole 301 formed therein, and a first swirling flow generator having a first spin hole 303 formed therein. Swirl flow generation unit 307 including a second swirl flow generation unit 306 with 304 and a second spin hole 305 formed, and bubbles passing through the swirl flow generation unit 307 are sprayed at high speed Discharge portions 308 having a section whose diameter is reduced to be formed are formed in a line.

Referring to FIG. 9, the first swirl flow generator 304 and the second swirl flow generator 306 have a multistage cylindrical structure stacked or integrally formed with each other, and the diameter of the first swirl flow generator It is smaller than the diameter of the second swirling flow generator, and the first spinhole 303 of the first swirling flow generator is formed of a plurality of, preferably three grooves formed clockwise or counterclockwise toward the inside. , The second spin hole 305 of the second swirling flow generator is also made of a plurality of grooves formed toward the inside in a clockwise or counterclockwise direction.

As described above, the multi-stage vortex nozzle 300 according to the first embodiment of the present invention has a structure capable of generating two-stage swirling flow, so that the fluid introduced through the three inlet holes 301 is used for generating the two-stage swirling flow of the middle part. It is converted into a spiral flow through the spin holes 303 and 305 and discharged through the discharge part 308.

In another embodiment, the multistage vortex nozzle 300 according to the second embodiment of the present invention is characterized by a multistage pipe structure consisting of a plurality of pipes 320 connected by a joint 310 as shown in FIG. 10. .

The multi-stage vortex nozzle 300 according to the second embodiment is configured such that the protrusions 321 are formed to be displaced from each other so as to obstruct the flow of the fluid inside each pipe, thereby causing a collision while the fluid rotates, thereby collapsing the air bubbles.

For example, the inner cross section of the first pipe has protrusions formed in the longitudinal direction on the upper and lower surfaces as shown in Fig. 10(a), and the second pipe connected by a joint has a hollow part of the pipe as shown in (b). It can be divided into half by a partition wall and a cylinder with a circular cross section at the center extends in the longitudinal direction, and the third pipe is formed so that five protrusions extend at regular intervals in the length direction as shown in (c). As shown in (d), the fourth pipe may have a structure formed such that four protrusions extend at regular intervals in the longitudinal direction on the inner surface of the pipe.

According to the above configuration, the microbubbles are further pulverized by the protrusion structure formed inside or until the secondary microbubbles of 1-20㎛ size enter the first pipe and sequentially penetrate to the fourth pipe. As a result, 200nm-sized nanobubbles can be obtained.

The nanobubbles obtained as described above can be sprayed with a multi-stage vortex nozzle 300, temporarily stored in a separate water tank, and sprayed where necessary by connecting a sprayer (not shown).

As described above, the present invention operates a standing-type nanobubble sprayer installed on the roadside to spray nanobubbles on the roadside, thereby using less water, and does not cause secondary pollution problems such as road boiling point pollution by water, and removes fine dust and NOx. By effectively reducing it, it can contribute to prevention of air pollution and improvement of public health.

100: rotary shear mixer agitator
200: vortex multi-stage collision
300: multi-stage vortex nozzle
400: control unit
1000: nano bubble generator

Claims (3)

A nanobubble generator for generating nanobubbles by mixing water and air; A nanobubble storage tank for storing the nanobubbles generated by the nanobubble generator; And a standing nanobubble sprayer installed on the roadside and spraying nanobubbles supplied from the nanobubble storage tank around, wherein the nanobubble generator comprises:
Rotary shear mixer agitator 100 made of a gear-shaped impeller; A plurality of perforated disk-type collision plates are composed of multi-stage collision plates arranged on the shaft at regular intervals, and at least two of the multi-stage collision plates are slit-type collision plates having radially formed slits and collision surfaces. Vortex multi-stage impact unit 200 made; And an inlet having an inlet hole, a first swirling flow generator having a first spin hole and a second swirling flow generator having a second spin hole, and bubbles passing through the swirling flow generator A multistage vortex nozzle 300 formed in a line with nozzle ends having a section whose diameter is reduced so as to be sprayed at high speed is connected in series,
A system for reducing fine dust and nitrogen oxides along a road including a bus platform or school zone, characterized in that three of the vortex multi-stage collision units are connected in series in a zigzag type. The method of claim 1,
The vortex multi-stage impact unit includes a first impact plate in which a perforated hole is arranged in a circular shape at the edge of the disk, a slit-type second impact plate in which the slits and impact surfaces are alternately radially formed, a third impact plate having a plurality of fine holes formed on the disk surface, and a slit. And a slit-type fourth collision plate in which the collision surfaces are alternately radially formed, a fifth collision plate in which a plurality of micropores are formed on the disk surface, a slit-type sixth collision plate in which the slit and collision surfaces are alternately formed radially, and fine perforations. A system for reducing fine dust and nitrogen oxides along a road including a bus platform or school zone, characterized in that the seventh impact plates formed on a plurality of disk surfaces are sequentially arranged in a row in a vertical direction on the shaft. The method of claim 2,
The first swirl flow generator and the second swirl flow generator have a multistage cylindrical structure stacked or integrally formed with each other, and the diameter of the first swirl flow generator is smaller than the diameter of the second swirl flow generator. The first spin hole of the first swirl flow generator has a plurality of grooves formed clockwise or counterclockwise toward the inside, and the second spin hole of the second swirl flow generator is also formed clockwise or counterclockwise toward the inside. Roadside fine dust and nitrogen oxide reduction system including a bus platform or school zone, characterized in that it is configured to have a plurality of grooves.

Images