KR102342845B1 - Particle collecting apparatus of cyclone type - Google Patents

Abstract

The cyclone dust collector includes: an air inlet pipe having an air inlet formed along the periphery of the outer circumferential surface; a plurality of drive shafts located inside the air inlet pipe and spaced apart from each other by a predetermined distance along the circumference of the air inlet; a plate-shaped guide vane coupled to each of the drive shafts and configured to change a flow direction of air introduced into the air inlet; and a driving unit configured to rotate the driving shaft to adjust the angle of the guide vane.

Description

Cyclone dust collecting apparatus {Particle collecting apparatus of cyclone type}

The present invention relates to a cyclone dust collector, and more particularly, to a cyclone dust collector capable of adjusting the size of collected particles.

The conventional mesh type pre-filter has a structure in which dust collides with the mesh itself and can be filtered. However, this structure causes a problem in that dust is accumulated on the mesh, and when dust is accumulated, the performance of the pre-treatment filter as a filter may be changed. In addition, if a lot of dust accumulates, the pressure load applied to the filter increases and the suction flow rate may change, which requires periodic maintenance.

The conventional tangential inflow cyclone type pre-filter is mainly used in places that require a large amount of flow, such as a factory, and uses a method of simply inserting a cyclone in the middle. In the case of a tangential inflow cyclone, the direction of the inlet is fixed, so it is impossible to suck in flow in all directions, and thus a high pressure load is displayed. In addition, if a tangential inflow cyclone is inserted in the middle of the tube, there is a disadvantage in that the size of the system is greatly increased due to the volume of the cyclone itself. Above all, in the conventional cyclone type, the size of the particles collected cannot be adjusted as needed, and even if the pollution level of the outdoor air is high or low, the efficiency is always lowered by operating with the same performance.

The conventional inertial impactor sampling inlet for atmospheric sampling serves to filter out particles of a certain size or more through an internal inertial impactor after inhaling the atmosphere from all directions.

In the case of the inertial impactor, since particles are collected and blocked on the collision plate, the performance may be deteriorated if the particles accumulate on the collision plate over a certain level. For the same reason, maintenance at regular intervals is necessary to achieve the desired performance, and the blocking particle size is fixed.

The present invention effectively serves as a pre-filter by adjusting the angle of the guide vane according to the external environment in a highly contaminated environment such as an airport or livestock when configuring an early warning device in response to viruses such as SARS, MERS, or foot-and-mouth disease in the future To provide a cyclone dust collector that can perform.

In addition, the present invention provides a cyclone dust collector capable of blocking particles larger than a certain size from flowing into the device by replacing the inertial impactor-type sampling inlet currently used for atmospheric sampling.

In addition, the present invention serves as a pre-filter for products such as air purifiers to widen the range of blocked particles when the concentration of fine dust in the air is high, and narrows the range of particles to be blocked when the concentration is low. To provide a cyclone dust collector that can be variably operated.

The cyclone dust collector according to the present invention includes: an air inlet pipe having an air inlet formed along the periphery of the outer circumferential surface; a plurality of drive shafts located inside the air inlet pipe and spaced apart from each other by a predetermined distance along the circumference of the air inlet; a plate-shaped guide vane coupled to each of the drive shafts and configured to change a flow direction of air introduced into the air inlet; and a driving unit configured to rotate the driving shaft to adjust the angle of the guide vane.

In addition, the guide vane is an airfoil, and the driving shaft may be fixedly coupled to one end of the guide vane having a relatively thick thickness.

In addition, the air inlet pipe may have a cylindrical shape, and each of the guide vanes may be disposed to be inclined at a predetermined angle with respect to a radial direction of the air inlet pipe.

In addition, it is located in the inner central region of the air inlet pipe, the upper end is located at a lower height than the air inlet, further comprising a particle outlet pipe through which fine particles contained in the air introduced into the air inlet pipe are introduced, the air A particle collecting space formed along the outer periphery of the particle discharge pipe may be formed inside the inlet pipe, and particles having a size larger than the fine particles are introduced from the air.

In addition, a container for storing the washing solution; a cleaning solution supply line connecting the container and the particle collection space and supplying the cleaning solution from the container to the particle collection space; and a washing solution discharge line connecting the container and the particle collecting space and discharging the washing solution from the particle collecting space to the container.

In addition, the driving unit may include a rotation gear fixedly coupled to one end of each of the driving shafts; a ring gear in which first teeth meshing with the teeth of the rotary gear are formed along the inner periphery, and second teeth are formed along the outer periphery; a driving gear positioned outside the ring gear and engaged with the second teeth; and a driving motor that transmits a rotational force to the driving gear.

In addition, the first shield provided along the periphery of the air inlet pipe from the outside of the air inlet pipe, the upper end is coupled to the air inlet pipe at an upper portion of the air inlet, and is arranged to be inclined downward; and a second shield provided along the circumference of the air inlet tube from the outside of the air inlet tube, the upper end coupled to the air inlet tube at the lower portion of the air inlet, and a second shielding portion disposed inclined downward, wherein the outside air is The air may be introduced into the air inlet through a space between the first shielding part and the second shielding part.

According to the present invention, the cyclone dust collector can block particles of a certain size or larger from flowing into the device by adjusting the angle of the guide vane according to the degree of contamination of the incoming air.

Further, according to the present invention, the cyclone dust collector can be used as a dust collector such as an air purifier and a ventilator.

In addition, according to the present invention, since the guide vanes are located inside the air inlet pipe, it is possible to miniaturize the device.

In addition, according to the present invention, since ambient air is introduced from all directions, it is possible to have a lower pressure load than when air is introduced from only one direction.

In addition, according to the present invention, the guide vanes can be prevented from increasing the pressure load due to the accumulation of dust on the filter itself, unlike the conventional filter.

In addition, according to the present invention, it is possible to wash the particle collecting space with a cleaning solution, so the maintenance of the device is easy.

1 is a front view showing a cyclone dust collector according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the cyclone dust collector of FIG. 1 .
FIG. 3 is a cross-sectional view taken along line A1-A2 of FIG. 2 .
FIG. 4 is a cross-sectional view taken along line B1-B2 of FIG. 2 .
5 is a diagram schematically illustrating a cyclone flow generated according to an embodiment of the present invention.
6 and 7 are views showing an example of adjusting the angle of the guide vanes.
8 is a graph showing the size distribution of particles collected according to the angle adjustment of the guide vanes.
9 is a view showing a driving unit according to another embodiment of the present invention.
10 is a cross-sectional view showing a part of a cyclone dust collector according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical spirit of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In this specification, when a component is referred to as being on another component, it means that it may be directly formed on the other component or a third component may be interposed therebetween. In addition, in the drawings, thicknesses of films and regions are exaggerated for effective description of technical content.

In addition, in various embodiments of the present specification, terms such as first, second, third, etc. are used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one component from another. Accordingly, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes a complementary embodiment thereof. In addition, in this specification, 'and/or' is used in the sense of including at least one of the components listed before and after.

In the specification, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" are intended to designate that a feature, number, step, element, or a combination thereof described in the specification exists, but one or more other features, number, step, configuration It should not be construed as excluding the possibility of the presence or addition of elements or combinations thereof. In addition, in this specification, "connection" is used in a sense including both indirectly connecting a plurality of components and directly connecting a plurality of components.

In addition, in the following description of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a front view showing a cyclone dust collector according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the cyclone dust collector of FIG. 1 .

Referring to FIG. 1 , the cyclone dust collector 10 receives external air and collects particles included in the introduced air. The cyclone dust collector 10 includes a housing 110 , an air inlet pipe 120 , a cyclone forming unit 130 , a particle discharge pipe 150 , and a washing unit 160 .

The housing 110 is provided in a predetermined volume, and provides a space in which various components of the cyclone dust collector 10 are located.

The air inlet pipe 120 is located on the upper portion of the housing 110 , and the lower end thereof is fixedly coupled to the housing 110 . The air inlet pipe 120 is disposed in the vertical direction perpendicular to the ground. The upper end of the air inlet pipe 120 is sealed by the cover 121 . An air inlet 125 is formed on the outer peripheral surface of the air inlet pipe 120 . The air inlet 125 is formed along the circumference of the outer peripheral surface of the air inlet pipe 120 . Accordingly, external air may be introduced in all directions of the air inlet pipe 120 . According to the embodiment, the air inlet pipe 120 is provided as a tube having a cylindrical shape.

FIG. 3 is a cross-sectional view taken along line A1-A2 of FIG. 2 .

2 and 3 , the cyclone forming unit 130 changes the flow direction of the air introduced into the air inlet 125 to form a cyclone flow. The cyclone forming unit 130 includes a driving shaft 131 , a guide vane 132 , and a driving unit 140 .

A plurality of drive shafts 131 are provided, and are located inside the air inlet pipe 120 . The drive shafts 131 are arranged in a ring shape along an edge region spaced apart from the center of the air inlet pipe 120 . The drive shaft 131 is disposed in the vertical direction in the longitudinal direction, and is disposed to be spaced apart from each other along the circumference of the air inlet 125 .

A plurality of guide vanes 132 are provided and coupled to each of the driving shafts 131 . The guide vane 132 is disposed at a height corresponding to the air inlet 125 . The guide vane 132 has a length corresponding to or longer than the air inlet 125 in the vertical direction. The guide vane 132 is plate-shaped and has an airfoil. Specifically, the guide vane 132 includes one end 132a having a relatively thick thickness, and the other end 132b having a gradually thinner thickness toward the end thereof. The driving shaft 131 is inserted and fixed to the relatively thick region 132a of the guide vane 132 . The guide vanes 132 are inclined at a predetermined angle with respect to the radial direction of the air inlet pipe 120 .

FIG. 4 is a cross-sectional view taken along line B1-B2 of FIG. 2 .

2 and 4 , the driving unit 140 rotates the driving shaft 131 to adjust the disposition angle of the guide vanes 132 . The driving unit 140 includes a rotation gear 141 , a ring gear 142 , a driving gear 143 , and a driving motor 145 .

The rotation gear 141 is fixedly coupled to one end of each of the drive shafts 141 . According to the embodiment, the rotation gear 141 is fixedly coupled to the lower ends of the drive shafts 141 . Teeth are formed on the outer peripheral surface of the rotation gear 141 .

The ring gear 142 has a ring shape of a predetermined diameter, and first teeth 142a are formed along the perimeter of the inner surface, and second teeth 142b are formed along the periphery of the outer surface. In the inner space of the ring gear 142 , the rotation gears 141 are disposed along the circumference of the inner surface of the ring gear 142 . The first teeth 142a of the ring gear 142 mesh with the teeth of the rotation gears 141 .

At least one driving gear 143 is provided and is located outside the ring gear 143 . Teeth are formed on the outer peripheral surface of the driving gear 143 . One of the driving gears 143 has teeth meshed with the second teeth 142b of the ring gear 142 . The driving gear 143 transmits the rotational force generated by the driving motor 145 to the ring gear 142 . The driving motor 145 may be a step motor. By driving the driving motor 145 , the guide vanes 132 may be simultaneously rotated in a unit of a predetermined angle.

The particle discharge pipe 150 is located inside the air inlet pipe 120 . The particle discharge pipe 150 is a cylindrical tube having a smaller diameter than the air inlet pipe 120 and may be located in the central region of the air inlet pipe 120 . The upper end of the particle discharge pipe 150 is located at a lower height than the air inlet 125 . An inlet 151 is formed at the upper end of the particle discharge pipe 150 . The particle discharge pipe 150 discharges the fine particles included in the cyclone flow to the outside.

A particle collecting space 127 is formed in the inner space of the air inlet pipe 120 along the outer circumference of the particle outlet pipe 150 . Particles larger than the fine particles among particles included in the cyclone flow are introduced and collected into the particle collecting space 127 . The particle collecting space 127 gradually increases in space from the top to the bottom.

The washing unit 160 washes the particles collected in the particle collecting space 127 . The washing unit 160 includes a container 161 , a washing solution supply line 162 , and a washing solution discharge line 163 .

The container 161 is located on the outside of the air inlet pipe 120, and stores the cleaning solution. The cleaning solution supply line 162 connects the container 161 and the particle collection space 127 , and supplies the cleaning solution stored in the container 162 to the particle collection space 127 . The cleaning liquid discharge line 163 connects the container 161 and the particle collecting space 127 , and discharges the cleaning liquid from the particle collecting space 127 to the container 161 .

Since the particles collected in the particle collection space 127 are discharged to the outside by the washing unit 160 , scattering of the collected particles can be prevented.

Hereinafter, a process of collecting particles in the air using the above-described cyclone dust collector 10 will be described.

The ambient air is introduced into the air inlet pipe 120 through the air inlet 125 from all directions, and the flow direction is changed by the guide vanes 132 in the inflow process to form a cyclone flow.

5 is a diagram schematically illustrating a cyclone flow generated according to an embodiment of the present invention.

Referring to FIG. 5 , among the particles included in the cyclone flow, fine particles P2 having a relatively small particle size are introduced into the particle discharge pipe 150 , and particles having a relatively large particle size P1 are collected in the particle collection space. (127) is introduced.

The driving unit 140 may adjust the angle of the guide vane 132 , and the width of the flow path through which external air flows into the air inlet pipe 120 is changed according to the angle of the guide vane 132 . The flow velocity of the incoming air is changed due to a change in the width of the flow path, and the size of particles that can be separated may be changed due to the flow velocity difference. By adjusting the angle of the guide vane 132, the size of the incoming particles can be adjusted from several micrometers to several tens of micrometers.

6 and 7 are views showing an example of adjusting the angle of the guide vanes.

Referring to FIG. 6 , in the guide vane 132 , the angle θ between the center line L1 connecting one end and the other end with the tangent line L2 of the air inlet pipe 120 may be 28°.

Referring to FIG. 7 , the guide vane 132 may form an angle θ between the center line L1 connecting one end and the other end with the tangent line L2 of the air inlet pipe 120 .

In addition, the angle of the guide vanes 132 may be adjusted at various angles.

8 is a graph showing the size distribution of particles collected according to the angle adjustment of the guide vanes. The first graph (A) is a graph showing the size distribution of the collected particles according to the embodiment of FIG. 6 , the second graph (B) is a graph showing the size distribution of the collected particles according to the embodiment of FIG. 7 , and the third graph ( C) is a graph showing the size distribution of collected particles when the center line L1 of the guide vane 132 and the tangent line of the air inlet pipe 120 are arranged at 32°. Each graph represents the distribution of particles collected in the particle collecting space 127 when the same flow rate of air is sucked from the air inlet 125 . The horizontal axis represents the size of the collected particles, and the vertical axis represents the collection efficiency.

Referring to FIG. 8 , it can be seen that the range of the particle size to be collected varies according to the angle of the guide vane 132 . As the angle of the guide vane 132 decreases, it can be seen that the collecting efficiency of particle size in a wide range is improved. According to the example, in the case of the first graph (A), it can be seen that the collection efficiency of particles of 5 μm or larger is 100%, and in the third graph (C), the collection efficiency of particles of 9 μm or larger is 100%. .

9 is a view showing a driving unit according to another embodiment of the present invention.

Referring to FIG. 9 , the driving unit 140 may be located at an upper end of the driving shaft 131 . The rotation gear 141 is fixedly coupled to the upper end of each of the drive shafts 131 , and a ring gear (not shown) is located inside the rotation gears 141 , and the teeth formed on the outer circumferential surface of the ring gear are the rotation gear 141 . meshes with the teeth of A driving gear (not shown) is positioned inside the ring gear, and teeth of the driving gear mesh with teeth formed on the inner surface of the ring gear. The drive gear transmits the rotational force of the drive motor to the ring gear. According to the present embodiment, as the driving unit 140 is located on the upper end of the driving shaft 131 , it is possible to reduce the size of the device.

10 is a cross-sectional view showing a part of a cyclone dust collector according to another embodiment of the present invention.

Referring to FIG. 10 , the cyclone dust collector 10 further includes a first shielding part 210 and a second shielding part 220 .

The first shielding part 210 is provided along the circumference of the air inlet pipe 120 from the outside of the air inlet pipe 120 . The lower end of the first shield 210 has a larger diameter than the upper end, and the diameter gradually increases from the upper end to the lower end. Accordingly, the first shielding part 210 is disposed to be inclined downward. The upper end of the first shield 210 is coupled to the air inlet pipe 120 at the upper portion of the air inlet 125 .

The second shielding part 220 is provided along the circumference of the air inlet pipe 120 from the outside of the air inlet pipe 120 . The second shielding part 220 has a lower end having a larger diameter than the upper end, and the diameter gradually increases from the upper end to the lower end. Accordingly, the second shielding unit 220 is disposed to be inclined downward. The upper end of the second shield 220 is coupled to the air inlet pipe 120 at the lower portion of the air inlet 125 .

The space between the first shielding part 210 and the second shielding part 220 described above provides a flow path through which external air is introduced into the air inlet 125 . In order for external air to stably flow into the air inlet 125 from all directions, it is necessary to protect it from disturbances such as external airflow, foreign substances, and rain. The first shielding part 210 and the second shielding part 220 make a constant flow of air flowing into the air inlet 125 from the front direction of the air inlet 125 and block the inflow of foreign substances and rain. Stability against disturbance can be ensured.

As mentioned above, although the present invention has been described in detail using preferred embodiments, the scope of the present invention is not limited to specific embodiments and should be construed according to the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

10: cyclone dust collector
100: housing
120: air inlet pipe
130: cyclone forming part
150: particle discharge pipe
160: washing unit

Claims (7)

an air inlet pipe having an air inlet formed along the periphery of the outer circumferential surface;
a plurality of drive shafts located inside the air inlet pipe and spaced apart from each other by a predetermined distance along the circumference of the air inlet;
a plate-shaped guide vane coupled to each of the drive shafts and configured to change a flow direction of air introduced into the air inlet;
a driving unit rotating the driving shaft to adjust an angle of the guide vane; and
It is located in the inner central region of the air inlet pipe, the upper end is located at a lower height than the air inlet, and includes a particle outlet pipe through which fine particles contained in the air introduced into the air inlet pipe are introduced,
A cyclone dust collector having a particle collecting space formed on the inside of the air inlet pipe along the outer circumference of the particle discharge pipe and in which particles having a size larger than the fine particles are introduced from the air. The method of claim 1,
The guide vane is an airfoil,
The driving shaft is a cyclone dust collector fixedly coupled to one end of the guide vane having a relatively thick thickness. The method of claim 1,
The air inlet pipe has a cylindrical shape,
Each of the guide vanes is a cyclone dust collector disposed to be inclined at a predetermined angle with respect to the radial direction of the air inlet pipe. delete The method of claim 1,
a container for storing the washing liquid;
a cleaning solution supply line connecting the container and the particle collection space and supplying the cleaning solution from the container to the particle collection space; and
The cyclone dust collecting device further comprising a washing solution discharge line connecting the container and the particle collecting space and discharging the washing solution from the particle collecting space to the container. The method of claim 1,
the driving unit
a rotation gear fixedly coupled to one end of each of the drive shafts;
a ring gear in which first teeth meshing with the teeth of the rotary gear are formed along the inner periphery, and second teeth are formed along the outer periphery;
a driving gear positioned outside the ring gear and engaged with the second teeth; and
Cyclone dust collector including a driving motor for transmitting a rotational force to the driving gear. The method of claim 1,
a first shielding part provided along a circumference of the air inlet pipe from the outside of the air inlet pipe, the upper end being coupled to the air inlet pipe at an upper portion of the air inlet, and being inclined downward; and
A second shield provided along the circumference of the air inlet pipe from the outside of the air inlet pipe, the upper end is coupled to the air inlet pipe at the lower part of the air inlet, and further comprising a second shielding part disposed inclined downward,
A cyclone dust collector in which external air is introduced into the air inlet through a space between the first shielding part and the second shielding part.

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