KR20210054426A - Particle collecting apparatus of cyclone type - Google Patents

Abstract

A cyclone type dust collecting device comprises: an air inlet pipe having an air inlet formed along a periphery of an 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 a 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 for adjusting the angle of the guide vane by rotating the drive shafts.

Description

Cyclone dust collecting apparatus TECHNICAL FIELD

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

The conventional prefilter in the form of a mesh has a structure in which dust collides with the mesh itself and can filter it. However, such a structure has a problem that dust accumulates in the mesh, and if dust accumulates, it may cause a change in performance as a filter of the pretreatment filter. In addition, when the dust accumulates excessively, the pressure load applied to the filter may increase and the suction flow rate may change, and accordingly, periodic maintenance is required.

The conventional tangential flow type cyclone type pre-filter is mainly used in a place requiring a large amount of flow, such as a factory, and simply inserts a cyclone in the middle. In the case of a tangential inflow cyclone, since the inlet direction is fixed, it is impossible to inhale the flow in all directions, thus exhibiting a high pressure load. In addition, when a tangential inflow cyclone is inserted in the middle of the pipe, there is a disadvantage in that the size of the system is greatly increased due to the volume of the cyclone itself. Above all, the conventional cyclone type cannot adjust the size of the collected particles as needed, and it always operates with the same performance even if the pollution degree of the outside air is high or low, resulting in inferior efficiency.

The conventional inertial impactor type 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 an inertial impactor, since particles are collected and blocked in the collision plate, performance may be degraded when particles are accumulated in the collision plate at a certain level or more. For the same reason, it is necessary to perform maintenance every certain period in order to achieve the desired performance, and the blocking particle size is fixed.

The present invention effectively acts as a prefilter by adjusting the angle of the guide vane according to the external environment in a highly polluted environment such as an airport or barn when configuring an early warning device in response to a virus such as SARS, MERS, or foot-and-mouth disease in the future. It provides a cyclone dust collecting device capable of performing.

In addition, the present invention provides a cyclone dust collecting device capable of blocking inflow of particles of a predetermined size or larger into the apparatus by replacing the inertial impactor type sampling inlet currently used for atmospheric sampling.

In addition, the present invention acts as a pre-filter for products such as air purifiers, so that when the concentration of fine dust in the air is high, the range of the particles to be blocked is wide, and when the concentration is low, the range of the particles to be blocked is narrowed. It provides a cyclone dust collecting device that can be operated variably.

The cyclone dust collecting device 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 positioned inside the air inlet pipe and disposed at predetermined intervals along the circumference of the air inlet port; A plate-shaped guide vane coupled to each of the drive shafts and changing a flow direction of air introduced into the air inlet; And a driving part for adjusting the angle of the guide vane by rotating the driving shaft.

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

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

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

In addition, a container for storing the washing liquid; A washing liquid supply line connecting the container and the particle collecting space and supplying the washing liquid from the container to the particle collecting space; And a washing liquid discharge line connecting the container and the particle collecting space and discharging the washing liquid 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 rotation gear are formed along an inner circumference, and second teeth are formed along an outer circumference circumference; A drive gear positioned outside the ring gear and meshing with the second teeth; And a drive motor that transmits rotational force to the drive gear.

In addition, a first shielding portion provided along the circumference of the air inlet pipe from the outside of the air inlet pipe, the upper end coupled to the air inlet pipe at the upper portion of the air inlet port, and disposed to be inclined downward; And a second shielding part provided along the circumference of the air inlet pipe from the outside of the air inlet pipe, the upper end coupled to the air inlet pipe at the lower portion of the air inlet port, and disposed to be inclined downward, wherein the outside air It 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 collecting device can prevent 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 collecting device can be used as a dust collecting device such as an air purifier or a ventilation device.

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

In addition, according to the present invention, since ambient air is introduced from all directions, a lower pressure load can be obtained than when air is introduced only in one direction.

In addition, according to the present invention, unlike the conventional filter, the guide vanes can prevent a phenomenon in which the pressure load increases due to the accumulation of dust in the filter itself.

In addition, according to the present invention, since the space for collecting particles can be cleaned with a cleaning solution, maintenance of the device is easy.

1 is a front view showing a cyclone dust collecting device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the cyclone dust collecting device of FIG. 1.
3 is a cross-sectional view taken along line A1-A2 of FIG. 2.
4 is a cross-sectional view taken along line B1-B2 of FIG. 2.
5 is a diagram schematically showing 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 vane.
8 is a graph showing the particle size distribution collected according to the angle adjustment of the guide vane.
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 collecting device according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical idea 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 contents may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component or that 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, and third are used to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. 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 its complementary embodiment. In addition, in the present specification,'and/or' has been used to mean including at least one of the elements listed before and after.

In the specification, expressions in the singular include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, components, or a combination thereof described in the specification, and one or more other features, numbers, steps, or configurations. It is not to be understood as excluding the possibility of the presence or addition of elements or combinations thereof. In addition, in the present specification, "connection" is used to include both indirectly connecting a plurality of constituent elements and direct connecting.

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

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

Referring to FIG. 1, the cyclone dust collecting device 10 introduces external air and collects particles contained in the introduced air. The cyclone dust collecting device 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 collecting device 10 are located.

The air inlet pipe 120 is located on the upper portion of the housing 110, and the lower end 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 a cover 121. An air inlet 125 is formed on the outer circumferential surface of the air inlet pipe 120. The air inlet 125 is formed along the periphery of the outer circumferential surface of the air inlet pipe 120. Accordingly, external air may be introduced from all directions of the air inlet pipe 120. According to an embodiment, the air inlet pipe 120 is provided as a cylindrical tube.

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

Referring to FIGS. 2 and 3, the cyclone forming unit 130 changes the flow direction of the air introduced through 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 a vertical direction in its 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 are coupled to each of the driving shafts 131. The guide vanes 132 are 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 has a plate shape and an airfoil shape. Specifically, the guide vane 132 includes one end (132a) having a relatively thick thickness, and the other end (132b) gradually becoming thinner toward the end. The driving shaft 131 is inserted and fixed in the region 132a having a relatively thick thickness of the guide vane 132. The guide vanes 132 are disposed to be inclined at a predetermined angle with respect to the radial direction of the air inlet pipe 120.

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 arrangement angle of the guide vane 132. The drive unit 140 includes a rotation gear 141, a ring gear 142, a drive gear 143, and a drive motor 145.

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

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

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

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

In the inner space of the air inlet pipe 120, a particle collection space 127 is formed along the outer periphery of the particle discharge pipe 150. Particles larger in size than the fine particles among particles included in the cyclone flow are introduced and collected in the particle collection space 127. The particle collection space 127 gradually increases in space width from the top to the bottom.

The washing unit 160 cleans the particles collected in the particle collection space 127. The washing unit 160 includes a container 161, a washing liquid supply line 162, and a washing liquid discharge line 163.

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

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

Hereinafter, a process of collecting particles in the air using the cyclone dust collecting device 10 described above 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 during the inflow process to form a cyclone flow.

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

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 (P1) having a relatively large particle size are a particle collection space. Flows into (127).

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 varies due to the change in the width of the flow path, and the size of the particles that can be separated may be changed due to the difference in flow velocity. By adjusting the angle of the guide vane 132, the size of the incoming particles can be adjusted from several micrometers to tens of micrometers.

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

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

Referring to FIG. 7, in the guide vane 132, an angle θ formed by a center line L1 connecting one end and the other end with a tangent line L2 of the air inlet pipe 120 may be 38°.

In addition, the guide vane 132 may be angle-adjusted at various angles.

8 is a graph showing the particle size distribution collected according to the angle adjustment of the guide vane. The first graph (A) is a graph showing the size distribution of collected particles according to the embodiment of FIG. 6, the second graph (B) is a graph showing the size distribution of collected particles according to the embodiment of FIG. 7, and the third graph ( C) is a graph showing the collection particle size distribution when the center line L1 of the guide vane 132 and the tangent line between the air inlet pipe 120 are arranged at 32°. Each graph represents the distribution of particles collected in the particle collection space 127 when air of the same flow rate 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 collected particle size varies according to the angle of the guide vane 132. It can be seen that as the angle of the guide vane 132 decreases, the efficiency of collecting particles in a wide range is improved. According to the embodiment, in the case of the first graph (A), the collection efficiency of particles of 5 μm or more is represented as 100%, and in the case of the third graph (C), the collection efficiency of particles of 9 μm or more is expressed as 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 the top of the driving shaft 131. The rotation gear 141 is fixedly coupled to the upper end of each of the drive shafts 131, the 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 Engages with the teeth of the A drive gear (not shown) is located inside the ring gear, and teeth of the drive 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 positioned at the upper end of the driving shaft 131, the device can be miniaturized.

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

Referring to FIG. 10, the cyclone dust collecting device 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 first shielding part 210 has a lower end having a larger diameter than an upper end, and the diameter gradually increases from the upper end to the lower end. Accordingly, the first shielding portion 210 is disposed to be inclined downward. The upper end of the first shielding portion 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 an upper end, and gradually increases in diameter from the upper end to the lower end. Accordingly, the second shielding part 220 is disposed to be inclined downward. The upper end of the second shielding part 220 is coupled to the air inlet pipe 120 at the lower portion of the air inlet 125.

The space between the above-described first shielding part 210 and the second shielding part 220 provides a flow path through which external air flows into the air inlet 125. In order for external air to stably flow into the air inlet 125 from all directions, protection from disturbances such as external airflow, foreign matter, and rain is required. The first shielding part 210 and the second shielding part 220 keep the flow of air flowing into the air inlet 125 from all directions of the air inlet 125 and block the inflow of foreign substances and rain. Stability against disturbance can be secured.

As described above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to specific embodiments, and should be interpreted by the appended claims. In addition, those who have acquired ordinary knowledge in this technical field 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 formation portion
150: particle discharge pipe
160: washing unit

Claims (7)

An air inlet pipe having an air inlet formed along the circumference of the outer circumferential surface;
A plurality of drive shafts positioned inside the air inlet pipe and disposed at predetermined intervals along the circumference of the air inlet port;
A plate-shaped guide vane coupled to each of the drive shafts and changing a flow direction of air introduced into the air inlet; And
Cyclone dust collecting device comprising a driving unit for adjusting the angle of the guide vane by rotating the drive shaft. The method of claim 1,
The guide vane is an airfoil,
The driving shaft is a cyclone dust collecting device 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 collecting device disposed to be inclined at a predetermined angle with respect to the radial direction of the air inlet pipe. The method of claim 1,
It is located in the inner central region of the air inlet pipe, the upper end is located at a height lower than the air inlet, further comprising a particle discharge pipe through which fine particles contained in the air introduced into the air inlet pipe is introduced,
A cyclone dust collecting device formed inside the air inlet pipe along the outer periphery of the particle discharge pipe, and a particle collecting space through which particles having a size larger than the fine particles are introduced from the air. The method of claim 4,
A container for storing the washing liquid;
A washing liquid supply line connecting the container and the particle collecting space and supplying the washing liquid from the container to the particle collecting space; And
A cyclone dust collecting device further comprising a washing liquid discharge line connecting the container and the particle collecting space and discharging the washing liquid from the particle collecting space to the container. The method of claim 1,
The driving part
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 rotation gear are formed along an inner circumferential surface, and second teeth are formed along an outer circumferential surface;
A drive gear positioned outside the ring gear and meshing with the second teeth; And
Cyclone dust collecting device comprising a drive motor for transmitting the rotational force to the drive gear. The method of claim 1,
A first shielding part provided along the circumference of the air inlet pipe at an outer side of the air inlet pipe, an upper end coupled to the air inlet pipe at an upper portion of the air inlet port, and disposed to be inclined downward; And
Further comprising a second shielding portion provided along the circumference of the air inlet pipe from the outside of the air inlet pipe, the upper end coupled to the air inlet pipe at the lower portion of the air inlet port, and disposed to be inclined downward,
External air is a cyclone dust collecting device that is introduced into the air inlet through a space between the first shielding part and the second shielding part.

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