JP2019130470A - Water spray centrifugal dust collector - Google Patents

Abstract

To provide a dust collector which has low ventilation resistance and high dust collection performance and does not need a water pump separately.SOLUTION: A water spray centrifugal dust collector includes: a rotary water suctioning dust collector body 11 formed by integrating a water suctioning body 19 and a dust collector body 20 at the inner side of an outer cylinder 12; and a motor 10 which rotates the rotary water suctioning dust collector body 11. The water suctioning body 19 has: a water supply cylinder 18 which has an inner peripheral surface having an inverted conical shape and suctions water; and an upper end spray slit 26 which sprays water in a centrifugal direction at an upper end part of the water supply cylinder 18. The dust collector body 20 has: multiple cylindrical bodies concentrically arranged at an outer periphery of the water supply cylinder 18; and multiple partitioning plates which extend along an axial direction of the water supply cylinder 18 between the water supply cylinder 18 and the cylindrical body and between the cylindrical bodies. The dust collector body 20 is disposed at the airflow downstream side of the upper end spray slit 26.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a dust collecting device that sprays water droplets to remove dust in the air.

  As a device for spraying water droplets to remove dust in the air, a dust collecting device as shown in FIG. 1 described in Patent Document 1 is known. Hereinafter, the dust collector will be described.

  As shown in FIG. 13, the dust collector 101 includes an outer cylinder 102 having an air inlet 103 from the side, a wire mesh 105 wound around the side surface of a cylindrical framework 106, and airflow around a rotating shaft 107. Rotating wire mesh rotor 104, sprinkling port 109 for pouring water from above the wire mesh rotor 104, sprinkler tank 108 for sending water to the sprinkler port 109, water supply pipe 110 and circulation pump 111 for feeding water to the sprinkler tank 108, shown in the figure Although it is not, it is constituted by a water storage tank for receiving water that drips down and storing water that is sent by the circulation pump 111 onto the wire mesh rotor. Although not shown in the drawing, a blower for sending air is connected to the upstream side of the air inlet 103.

  Air flows in from the air inlet 103, passes through the mesh of the wire mesh 105, and escapes to the lower part of the wire mesh rotor 104. In the process, the wire mesh rotor 104 rotates by the force of the air flowing in from the air inlet 103, and the water sent from the water storage tank by the circulation pump 111 is sprinkled on the wire mesh rotor 104 through the water supply pipe 110, and the sprinkled water. Is sprayed in the centrifugal direction from the water spray port 109 through the water spray tank 108 and collides with the inner wall of the outer cylinder 102. In the process, water turns into water droplets that collide with dust in the air and collect the dust.

  The water droplets that collect the dust adhere to the inner wall of the outer cylinder 102 and the surface of the wire net 105, become a water mass, and hang down due to gravity. The dripping water flows down to a water storage tank provided at the lower part of the wire mesh rotor 104 and is again poured onto the wire mesh rotor 104 by the circulation pump 111 to form water droplets for collecting dust. The sprinkled water also has a role of cleaning the wire mesh 105 at the same time as collecting dust, and the dust adhering to the mesh of the wire mesh 105 is washed away and simultaneously blown away in the centrifugal direction by the rotation of the wire mesh rotor 104. Therefore, the mesh of the metal mesh 105 is always kept open, and air can always pass through the mesh of the metal mesh 105.

JP-A-60-212205 (FIG. 1)

  The conventional dust collector has a structure in which water droplets are not evenly and evenly distributed in the ventilation region, and there are many airs that pass through without contacting the water droplets. In addition, since it relies on the rotation of the wire mesh rotor by generating and spraying water droplets, it cannot supply a sufficient amount of water droplets that move at high speeds necessary for dust collection. In addition, if the mesh of the wire mesh is rough, the filtration function does not work sufficiently and high dust collection performance cannot be obtained, but the air flow resistance that makes the mesh of the mesh finer to improve dust collection performance increases, making it difficult for air to pass through. End up. Thus, it is impossible to achieve both low air resistance and high dust collection performance.

  In addition, a separate water pump is necessary for flowing water over the wire mesh rotor, and expensive machinery and power energy are required.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a dust collector that eliminates a water pump, has a low ventilation resistance, and has a high dust collection performance.

  In order to achieve the above object, the present invention provides an outer cylinder, a rotary water suction dust collector formed integrally with a water suction body and a dust collector inside the outer cylinder, and the rotary water suction. A dust collector equipped with a motor for rotating a raised dust collecting body, wherein the water sucking body has at least an inner peripheral surface having an inverted conical shape for sucking up water and an upper end portion of the water feeding cylinder An upper end spray slit for spraying water in the centrifugal direction, and the dust collector is arranged concentrically on the outer periphery of the water supply cylinder, and between the water supply cylinder and the cylindrical body, and the plurality A plurality of partition plates extending along the axial direction of the water supply cylinder, and the dust collector is disposed downstream of the upper end spray slit in the air flow, The purpose of the period is achieved.

  ADVANTAGE OF THE INVENTION According to this invention, the dust collector which has high dust collection performance with low ventilation resistance can be provided. In addition, it is possible to eliminate the blower pump that was necessary for pouring water.

Side surface sectional drawing of the dust collector of Embodiment 1 of this indication The perspective sectional view of the dust collector of Embodiment 1 Cross-sectional perspective view of the dust collection part of the first embodiment Side surface sectional drawing of the dust collection part of Embodiment 1 The perspective view of the rotating water suction dust collector which abbreviate | omitted the axial connection body of Embodiment 1, and the cylindrical body of the outermost periphery part 1 is a perspective cross-sectional view of a rotating water suction dust collector from which the shaft connection body of the first embodiment is omitted. Top view of a rotating water suction dust collector from which the shaft connector of the first embodiment is omitted. The bottom view of the rotating water suction dust collector of Embodiment 1 Cross-sectional perspective view of the outer cylinder of the first embodiment The perspective view of the shaft connection body of Embodiment 1. FIG. The perspective view of the outer cylinder dust collector support body of Embodiment 1 The perspective view of the bearing of Embodiment 1 Perspective cross-sectional view of a conventional dust collector

  A dust collector according to claim 1 of the present invention includes an outer cylinder, a rotating water suction dust collector formed integrally with a water suction body and a dust collector inside the outer cylinder, A dust collector equipped with a motor for rotating a rotating water suction dust collector, wherein the water suction body has at least an inner peripheral surface having an inverted conical shape and sucks up water, and An upper end spray slit for spraying water in the centrifugal direction at the upper end, and the dust collector is arranged concentrically on the outer periphery of the water supply tube, and between the water supply tube and the cylindrical body. And a plurality of partition plates extending along the axial direction of the water supply cylinder between the plurality of cylindrical bodies, and the dust collector is disposed on the downstream side of the airflow with respect to the upper end spray slit.

  As a result, when the rotating water suction dust collector rotates, the water droplets are sprayed and sprayed in the centrifugal direction, and the collected water droplets colliding with the dust in the air have a centrifugal separation effect on the downstream side of the airflow. Can be removed through dust. In other words, it is possible to realize the suction and spraying of water necessary for dust collection, dust collection, and collection of water droplets with a single rotational movement, and it has higher ventilation resistance and lower airflow resistance than filtration that filters out dust in the air with fine eyes. Dust efficiency can be obtained.

  Furthermore, the rotating water sucking dust collector is washed by water droplets in the process of collecting the water droplets by centrifugal force. That is, dust can always be collected in a washed state.

  In particular, since a plurality of cylindrical bodies are provided, it is possible to reduce the moving distance required for collecting water droplets in the dust collector, and to collect the collected water droplets at a high rate.

  Moreover, the dust collector of the form which concerns on Claim 2 forms the said partition plate helically in the side surface of the said water supply cylinder, Comprising: The said partition plate makes the upstream of the airflow in the said cylindrical body downstream. On the other hand, the cylinder is twisted toward the top in the rotational direction.

  Thereby, air can be pushed out downstream by rotation, and ventilation resistance can be lowered.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 and 2, the dust collector 1 of the present embodiment includes an outer case 4 having an air inlet 2 on the top surface and a blower connection port 3 on the side surface. The outer case 4 has a dust collecting portion 5 built therein. The outer case 4 is divided into an upper case 7 on the air inlet 2 side and a lower case 8 on the blower connection port 3 side by an upper and lower partition 6. In the central part of the upper and lower partition walls 6, the dust collecting part 5 communicates the case upper part 7 and the case lower part 8.

  And it has the structure which can flow air to the air inflow port 2, the dust collecting part 5, and the air blower connection port 3 in order from the upstream of the flow of air. For example, although not shown in the drawing, a blower is connected to the downstream side of the blower connection port 3, enters from the air inlet 2, moves from the top to the bottom of the dust collecting unit 5, and exits from the blower connection port 3. Air is flowing in the direction.

  Next, the structure of the dust collection part 5 is demonstrated.

  As shown in FIGS. 3 and 4, the dust collecting unit 5 has a motor 10 fixed to the motor support 9 at the upper part, and a rotating water suction dust collector 11 and a rotating water suction dust collector 11 at the lower part. And a water storage 13 at the lower end of the rotating water suction dust collector 11.

  The motor 10 is connected to the shaft connector 14 with the rotation shaft facing downward. Specifically, the shaft of the motor 10 is inserted and connected to the shaft insertion port 15 of the shaft connector 14. Thereby, the rotating water suction dust collector 11 can rotate by receiving the force of the motor 10. Further, an air inflow hole 16 is formed with a space between the motor 10 main body and the upper end surface of the outer cylinder 12. The lower end of the outer cylinder is an air outflow hole 17.

  Next, the structure of the rotating water suction dust collector 11 will be described.

  5 (illustration of the shaft connector 14 and the outermost cylindrical body 27 is omitted for easy understanding), FIG. 6 (illustration of the shaft connector 14 is omitted), and FIG. 7 (illustration of the shaft connector 14). 8) and the rotating water suction dust collector 11 is formed integrally with a water suction body 19 that hits the central portion and a dust collector 20 disposed on the outer periphery of the water suction body 19 as shown in FIG. It is a thing.

  As shown in FIG. 3, the water suction body 19 includes a water supply pipe 18 having at least an inner peripheral surface (hereinafter referred to as an inclined inner wall 23) having an inverted conical shape and sucking up water, and an upper end portion of the water supply pipe 18. And a top spray slit 26 for spraying water in the centrifugal direction.

  The water supply cylinder 18 sucks water upward by the action of centrifugal force acting on the inclined inner wall 23 by rotating. In addition, the outer surface of the water supply cylinder 18 may not be conical.

  The shaft connector 14 shown in FIG. 9 has a shaft insertion port 15 and a slit upper collar 25. When combining at the upper part of the water supply cylinder 18, the slit lower collar 21 and the slit upper collar 25 are combined and fixed, so that a clearance corresponding to the height of the slit generating protrusion 22 is formed in the rotating water suction dust collector 11. The upper end spraying slit 26 having it can be formed.

  In the dust collector 20, five cylindrical bodies 27 having different diameters are arranged in the centrifugal direction from the outer surface of the water supply cylinder 18. The water supply cylinder 18 and the cylindrical body 27, or twelve partition plates 28 that connect the plurality of cylindrical bodies 27, extend from the outer periphery of the water supply cylinder 18 to the outermost cylindrical body 27 and are integrated. Thereby, the water suction body 19 and the dust collector 20 are integrated.

  More specifically, a water supply cylinder 18 is provided at a central portion when viewed from below and above the motor 10, and five cylinders having the same central axis as viewed from above and the diameter of the water supply cylinder 18 are different from each other on the outer periphery of the water supply cylinder 18. The body 27 is arranged, and the cylindrical bodies 27 are connected to each other by twelve partition plates 28 extending in the centrifugal direction from the outer surface of the water supply cylinder 18.

  The space around the outer periphery of the water supply cylinder 18 is evenly partitioned in the centrifugal direction by the cylindrical body 27. In the present embodiment, the motor 10 rotates counterclockwise as viewed from above, but the partition plate 28 is located downstream, that is, the air inflow hole 16 side is on the front side in the rotation direction with respect to the air outflow hole 17 side. It has a twisted spiral shape.

  The outer cylinder 12 shown in FIG. 10 has a cylindrical shape and is joined from the lower side of the upper and lower partition walls 6 so that the air inflow hole 16 and the central axis are aligned, and the outer surface of the rotating water suction dust collecting body 11 Is enclosed. A sealing ring 29 is provided on the inner side surface of the outer cylinder 12 so that air does not pass through the gap with the outer side surface of the rotating water suction dust collector 11.

  An outer cylinder dust collector support 30 shown in FIG. 11 is joined under the outer cylinder 12, and the rotating water suction dust collector 11 and the outer cylinder 12 are connected while being positioned through a bearing 31 shown in FIG. ing. The bearing 31 has a ball bearing inside, and the inner side surface and the outer side surface freely rotate around the shaft. Therefore, the rotating water suction dust collector 11 can smoothly rotate around the axis of the motor 10 with respect to the fixed outer cylinder 12.

  The water storage 13 is stored at the bottom of the outer case 4, and the lower end of the water supply cylinder 18 is immersed in the water storage 13 as shown in FIGS. 2 and 5.

  In the above configuration, when the motor 10 is operated to rotate the rotating water suction dust collector 11, the inclined inner wall 23 of the water supply cylinder 18 is run up and moved upward (see FIG. 3 and FIG. 4). 3, indicated by solid line B). Moreover, as shown in FIG. 6, since the inner wall protrusion 32 is provided in the inclination inner wall 23, the run-up of water is accelerated | stimulated. The water that ran up finally reaches the uppermost part of the water supply cylinder 18 and changes its direction in the horizontal direction by the slit upper collar 25 of the shaft connector 14 shown in FIG. Is evenly distributed radially in the centrifugal direction.

  As shown in FIG. 3, the water is torn off from the edges of the slit lower collar 21 and the upper slit collar 25 by the centrifugal force due to rotation, so that the water drops 33 can be scattered radially from the upper end spray slit 26 in the horizontal direction. it can. The water droplets 33 scattered in the horizontal direction collide with air flowing vertically from top to bottom (indicated by a broken line A in FIG. 5) from the lateral direction, and are combined with dust in the air. That is, the dust can be collected in the water droplet 33 by combining with the dust.

  The water droplets 33 that have collected the dust enter the space partitioned by the cylindrical body 27 and the partition plate 28 of the rotating water suction dust collector 11 on the air flow from top to bottom. (Indicated by dashed line A in FIG. 4). Since the partition plate 28 has a spiral shape as described above and pushes air in the rotation direction, the space rotates together with the air. Therefore, water droplets or dust in the air move under centrifugal force and adheres mainly to the wall surface of the cylindrical body 27. Since the rotating space is finely partitioned in the centrifugal direction by the cylindrical body 27, water droplets or dust adhere to the wall surface of the cylindrical body 27 and are collected at a small moving distance.

  The water droplet 33 adhering to the cylindrical body 27 and the partition plate 28 becomes a mass of water, wets the surface, and travels along the surface and falls from the air outflow hole 17 to the water storage just below. Therefore, the cylindrical body 27 and the partition plate 28 are always cleaned, and are cleaned while collecting dust and kept clean.

  The air that has passed through the air outflow hole 17 is supplied to the outside of the dust collector 1 from the blower connection port 3 as clean air. Moreover, the water that has fallen and returned to the water storage 13 again runs up the inclined inner wall 23 from the lower end of the water supply cylinder 18 and is sprayed as water droplets 33 from the upper end spray slit 26 to collect dust in the air. repeat.

  In this embodiment, water droplets and dust that has not been collected by water droplets are not filtered through a fine mesh, but are introduced into a space partitioned in the centrifugal direction and collected by centrifugal force. The partition plate is provided in a spiral shape so that air can be pushed from the upstream side to the downstream side. Therefore, it has high dust collection performance with low ventilation resistance.

  The dust collector according to the present invention eliminates the water pump and at the same time has a high dust collection performance with a low ventilation resistance. Moreover, since it is always washed while collecting dust, high dust collecting performance can always be maintained. Therefore, it is useful as an apparatus for purifying air when circulating indoor air or putting outdoor air into the room.

DESCRIPTION OF SYMBOLS 1 Dust collector 2 Air inflow port 3 Blower connection port 4 Outer case 5 Dust collection part 6 Upper and lower partition 7 Case upper part 8 Case lower part 9 Motor support 10 Motor 11 Rotating water suction dust collector 12 Outer cylinder 13 Water storage 14 Axis connection Body 15 Axis insertion port 16 Air inflow hole 17 Air outflow hole 18 Water supply cylinder 19 Water suction body 20 Dust collector 21 Slit lower collar 22 Slit generation projection 23 Inclined inner wall 25 Slit upper collar 26 Upper spray slit 27 Cylindrical body 28 Partition Plate 29 Seal ring 30 Outer cylinder dust collector support 31 Bearing 32 Inner wall projection 33 Water drop

Claims (2)

An outer cylinder, a rotating water suction dust collector formed integrally with a water suction body and a dust collector inside the outer cylinder, and a motor that rotates the rotary water suction dust collector. A dust device,
The water sucker is
A water supply pipe having at least an inner peripheral surface having an inverted conical shape and sucking up water;
An upper end spray slit for spraying water in the centrifugal direction at the upper end of the water supply tube;
The dust collector is
A plurality of cylindrical bodies arranged concentrically on the outer periphery of the water supply cylinder;
A plurality of partition plates extending along the axial direction of the water supply cylinder between the water supply cylinder and the cylindrical body and between the plurality of cylindrical bodies;
The dust collector which has arrange | positioned the said dust collector in the downstream of an airflow rather than an upper end spray slit. The partition plate is formed in a spiral shape on the side surface of the water supply cylinder, and the partition plate twists the upstream side of the air flow in the cylindrical body toward the leading side in the rotation direction of the cylinder with respect to the downstream side. The dust collector according to claim 1, wherein