JP6337408B2 - Rotating device - Google Patents

Description

  The present invention relates to a rotating device, and more particularly to a rotating device that applies a centrifugal force to a substance passing through a flow path by rotating a rotor.

  Conventionally, as an application device of this type of rotating device, for example, a dustproof device that separates dust from air is known (Japanese Patent Publication No. 2001-87610; hereinafter, Document 1).

  The dustproof device described in Literature 1 includes a rotor, a cylinder, an outer cylinder, a sirocco fan, a fan motor, and main blades.

  In this dustproof device, when the dust mixed air spirally descends while rotating at a high speed, a stronger centrifugal force acts on the dust having a larger mass than the air, so that the dust is pushed toward the wall surface of the outer cylinder.

  In the dustproof device, air is cleaned by separating air and dust.

  In the field of rotating devices, it is desired to reduce the size and power consumption.

  An object of the present invention is to provide a rotating device that can be reduced in size and power consumption.

  A rotating device according to an aspect of the present invention includes a rotor, a frame that surrounds the rotor and is arranged coaxially with the rotor, and at least one flow path formed between the rotor and the frame. A blower and a motor. The at least one flow path has an inlet on the first end side of the rotor and an outlet on the second end side of the rotor in a direction along the rotation center axis of the rotor. The air blower is configured to flow gas through the at least one flow path. The motor is configured to rotate the at least one flow path about the rotation center axis by rotating the rotor. The at least one flow path includes: a first space portion in which an angular velocity of a passing substance is larger than a rotation angular velocity of the rotor; and a second space portion in which an angular velocity of the passing substance is equal to or less than the rotation angular velocity of the rotor. Prepare.

FIG. 1A is a partially cutaway schematic front view of the rotating device according to the first embodiment of the present invention. FIG. 1B is a schematic development view of a main part of the above rotating device. FIG. 2 is a schematic perspective view of a main part of the above rotating device. FIG. 3 is a schematic front view, partly broken, of a separator provided with the above rotating device. FIG. 4 is a schematic perspective view of the separator. FIG. 5 is a schematic perspective view of a main part of the separator. FIG. 6 is a schematic front view, partly broken, of a separator including a rotating device according to a first modification of the first embodiment. FIG. 7 is a schematic explanatory diagram of an air purification system including a rotating device according to a second modification of the first embodiment. FIG. 8A is a schematic front view, partly broken, of the rotating device according to the third modification of the first embodiment. FIG. 8B is a schematic development view of the main part of the rotating device same as above. FIG. 9A is a schematic front view, partly broken, of a rotating device according to a fourth modification of the first embodiment. FIG. 9B is a schematic development view of the main part of the above rotating device. FIG. 10A is a schematic front view, partly broken, of a rotating device according to a fifth modification of the first embodiment. FIG. 10B is a schematic development view of the main part of the above rotating device. FIG. 11A is a schematic front view, partly broken, of the rotating device according to the second embodiment of the present invention. FIG. 11B is a schematic development view of the main part of the above rotating device. FIG. 12 is a schematic front view, partly broken, of a separator provided with the above rotating device. FIG. 13A is a schematic front view, partly broken, of a rotating device according to a modification of the second embodiment. FIG. 13B is a schematic development view of the main part of the above rotating device. FIG. 14 is a schematic perspective view of a main part of the above rotating device.

  Each figure demonstrated in the following Embodiments 1-2 is a typical figure, and ratio of the magnitude | size of each component in a figure does not necessarily reflect an actual dimensional ratio.

(Embodiment 1)
Below, the rotation apparatus 1a of this embodiment is demonstrated based on FIG. 1A, 1B, and 2. FIG.

  The rotating device 1 a includes a rotor 2, a frame 8 that surrounds the rotor 2 and is disposed coaxially with the rotor 2, and at least one flow path 3 that is formed between the rotor 2 and the frame 8. Prepare. The rotating device 1 a includes a blower unit 4 and a motor 5. The at least one flow path 3 has an inlet 33 on the first end 21 side of the rotor 2 in the direction along the rotation center axis 23 of the rotor 2, and an outlet 34 on the second end 22 side of the rotor 2. is there. The air blowing unit 4 is configured to flow gas through at least one flow path 3 (from the inlet 33 side to the outlet 34 side). The motor 5 is configured to rotate at least one flow path 3 around the rotation center axis 23 by rotating the rotor 2. At least one flow path 3 includes a first functional part (also referred to as “first space part”) 31 that makes the angular velocity of the passing substance larger than the rotational angular speed of the rotor 2, and the angular velocity of the passing substance that rotates the rotor 2. A second functional unit (also referred to as a “second space unit”) 32 having an angular velocity or less.

  In other words, the at least one flow path 3 has a first space portion 31 that has a shape that allows a substance to pass at an angular velocity larger than the rotational angular velocity of the rotor 2, and a shape that allows the substance to pass at an angular velocity equal to or lower than the rotational angular velocity of the rotor 2. A second space portion 32.

  With the configuration described above, the rotating device 1a can be reduced in size and power consumption.

  In this specification, “arranged coaxially with the rotor 2” means that the frame body 8 is disposed so that the center line of the frame body 8 is aligned with the rotation center axis 23 of the rotor 2. . Further, the “inlet 33” in the present specification means an inlet of gas or the like flowing into the flow path 3. Further, the “outlet 34” in the present specification means an outlet of gas or the like flowing out from the flow path 3. 1A, 1B, and 2, the rotation direction of the rotor 2 is schematically shown by a thick arrow. The rotation direction of the rotor 2 is a counterclockwise direction when the rotor 2 is viewed from the first end 21 side. In short, the rotation direction of the rotor 2 is a counterclockwise direction when the rotor 2 is viewed from the side opposite to the motor 5 side, and a clockwise direction when viewed from the motor 5 side. The rotating device 1a rotates the rotor 2 in the counterclockwise direction when viewed from the first end 21 side, and operates the fan 41 to rotate the substance passing through the flow path 3 in a spiral manner.

  Examples of the gas include air and exhaust gas. Examples of the substance passing through the flow path 3 include gas molecules constituting the gas and solids contained in the gas. Examples of gas molecules include nitrogen molecules and oxygen molecules. Examples of the solid include fine particles and dust. Examples of the fine particles include particulate substances. Examples of the particulate matter include primary generated particles that are directly released into the atmosphere as fine particles, and secondary generated particles that are generated as fine particles in the air that are released into the atmosphere as a gas. Examples of the primary generated particles include soil particles (such as yellow sand), dust, vegetable particles (such as pollen), animal particles (such as mold spores), and soot. Examples of the size classification of the particulate matter include PM2.5 (microparticulate matter), PM10, SPM (floating particulate matter) and the like. PM2.5 is a fine particle that passes through a sizing device having a particle diameter of 2.5 μm and a collection efficiency of 50%. PM10 is a fine particle that passes through a sizing device having a particle diameter of 10 μm and a collection efficiency of 50%. SPM is fine particles that pass through a sizing device having a particle diameter of 10 μm and a collection efficiency of 100%, corresponds to PM 6.5-7.0, and is slightly smaller than PM10.

  Each component of the rotating device 1a will be described in detail below.

  As shown in FIG. 1A, the rotating device 1 a of the present embodiment includes a rotor 2, a frame body 8, at least one flow path 3, a blower unit 4, and a motor 5.

  The rotor 2 preferably has a circular cross section perpendicular to the rotation center axis 23. As an example, the rotor 2 is formed in a cylindrical shape. The rotor 2 preferably has a length on the rotation center axis 23 larger than a length in a direction orthogonal to the rotation center axis 23. In short, it is preferable that the rotor 2 has an axial length larger than a radial length.

  The rotor 2 is configured so as not to pass a substance passing through the flow path 3 into the rotor 2. As a material of the rotor 2, for example, a metal, a synthetic resin, or the like can be used. The rotor 2 preferably has conductivity. Thereby, the rotating device 1a can suppress the rotor 2 from being charged. The rotor 2 may be hollow. Thereby, the rotating device 1a can reduce the material cost of the rotor 2 and can reduce the weight.

  The frame 8 surrounds the rotor 2 and is arranged coaxially with the rotor 2. The frame body 8 has a cylindrical shape, and the rotor 2 is disposed inside the frame body 8. It is preferable that the frame 8 has a circular inner peripheral line in a cross section perpendicular to the center line of the frame 8. As an example, the frame body 8 is formed in a cylindrical shape. The frame 8 has a circular outer peripheral line in a cross section orthogonal to the center line of the frame 8, but is not limited thereto, and may be, for example, an ellipse or a polygon.

  As a material of the frame body 8, for example, a metal, a synthetic resin, or the like can be used. The frame body 8 preferably has conductivity. Thereby, the rotating device 1a can suppress the frame body 8 from being charged.

  The rotating device 1a includes at least one blade portion 9 (a plurality, more specifically two in this embodiment) disposed between the rotor 2 and the frame body 8 so as to form at least one flow path 3. I have. More specifically, the plurality of blade portions 9 protrude from the outer peripheral surface 24 of the rotor 2. The plurality of blade portions 9 are preferably integrally formed with the rotor 2. The plurality of blade portions 9 are connected to the frame body 8. Accordingly, the plurality of blade portions 9 and the frame body 8 rotate together with the rotor 2 when the rotor 2 rotates. The plurality of blade portions 9 may be formed as separate members from the rotor 2 and the frame body 8. In this case, the plurality of blade portions 9 are preferably connected to both the rotor 2 and the frame body 8.

  As a material of the blade portion 9, for example, metal, synthetic resin, rubber, or the like can be used. It is preferable that the blade | wing part 9 has electroconductivity. Thereby, the rotating device 1a can suppress the plurality of blade portions 9 from being charged.

  The flow path 3 is defined by two adjacent blade portions 9, the rotor 2, and the frame body 8 among the plurality of blade portions 9. In short, the flow path 3 is formed by a space surrounded by two adjacent blade portions 9 among the plurality of blade portions 9, the outer peripheral surface 24 of the rotor 2, and the inner peripheral surface 84 of the frame 8. The flow path 3 has an inflow port 33 on the first end 21 side of the rotor 2 in the direction along the rotation center axis 23 of the rotor 2, and an outflow port 34 on the second end 22 side of the rotor 2. The rotating device 1a applies a force in the rotation direction around the rotation center axis 23 to the gas flowing into the flow path 3 as the rotor 2 rotates. The rotating device 1 a rotates the gas flowing in from the inlet 33 of the flow path 3 spirally around the rotation center axis 23 along the inner peripheral surface 84 of the frame body 8, while rotating the outlet 34 of the flow path 3. Can lead to. “Rotating in a spiral” has the same meaning as turning in a spiral.

  The air blowing unit 4 includes a fan 41. The rotating device 1 a can cause the gas to flow through the flow path 3 by operating the fan 41. The fan 41 is an electric fan. The fan 41 is disposed on the downstream side of the motor 5. In other words, the motor 5 is disposed on the upstream side of the fan 41. In addition, the “upstream side” in this specification means the upstream side (primary side) when viewed in the gas flow direction. The “downstream side” in this specification means the downstream side (secondary side) when viewed in the gas flow direction. The fan 41 is fixed to the motor 5.

  As the fan 41, for example, an axial fan can be employed. The fan 41 includes a rotating shaft 42 and a plurality of blades 43 arranged around the rotating shaft 42. The fan 41 is preferably sized so that the plurality of blades 43 do not overlap the motor 5 when viewed from the direction along the rotation center axis 23. Thereby, the rotating device 1 a can flow the gas flowing out from the outlet 34 of the flow path 3 in the direction along the rotation center axis 23 in the fan 41.

  The motor 5 has a cylindrical rotating shaft 52 protruding from a motor body (body) 51. The motor 5 preferably has a circular outer peripheral shape of the motor body 51. In the motor 5, the outer diameter of the motor body 51 is preferably smaller than the inner diameter of the frame body 8. In the motor 5, the outer diameter of the motor body 51 is preferably smaller than the outer diameter of the rotor 2. The motor 5 is configured to rotate in one direction around the rotation shaft 52.

  In the rotating device 1 a, the rotor 2 is connected to the rotating shaft 52 of the motor 5. In the rotating device 1a, the rotating shaft 52 and the rotor 2 are connected so that the axis 523 of the rotating shaft 52 and the rotation center shaft 23 of the rotor 2 are aligned. Thereby, the motor 5 can rotate the rotor 2. The rotation direction of the rotor 2 is the same as the rotation direction of the rotation shaft 52 of the motor 5. The rotational angular velocity of the rotor 2 is the same as the rotational angular velocity of the rotating shaft 52 of the motor 5. The motor 5 rotates the flow path 3 around the rotation center axis 23 by rotating the rotor 2.

  In the rotating device 1 a, the motor 5 is disposed on the downstream side of the flow path 3, and the air blowing unit 4 is disposed on the downstream side of the motor 5. In short, in the rotating device 1 a, the flow path 3, the motor 5, and the blower 4 are arranged in the order of the flow path 3, the motor 5, and the blower 4 in the direction along the rotation center axis 23.

  In the rotating device 1 a, the flow path 3 includes a first space portion 31 in which the angular velocity of the substance that passes through is larger than the rotational angular velocity of the rotor 2, and a second space portion in which the angular velocity of the substance that passes through 32. In other words, in the rotating device 1a, the flow path 3 has a first space portion 31 that has a shape that allows the substance to pass at an angular velocity larger than the rotational angular velocity of the rotor 2, and a shape that allows the substance to pass at an angular velocity that is equal to or lower than the rotational angular velocity of the rotor 2. And a second space portion 32.

  In the rotating device 1a, since the flow path 3 includes the first space portion 31, the angular velocity of the substance passing through the first space portion 31 can be made larger than the rotational angular velocity of the rotor 2. Therefore, in the first space portion 31 of the flow path 3, the rotating device 1a can further increase the centrifugal force that acts on the solid among the substances passing through the flow path 3, and can be downsized. . Further, in the rotating device 1a, since the flow path 3 includes the second space portion 32, the pressure loss of the flow path 3 can be reduced as compared with the case where the flow path 3 is formed only by the first space portion 31. Is possible. In other words, in the rotating device 1a, the flow passage 3 includes the second space portion 32, so that the air blowing capability can be improved and the load on the air blowing portion 4 can be reduced. Therefore, the rotation device 1a can achieve low power consumption because the flow path 3 includes the second space portion 32.

  The first space portion 31 is formed in a spiral shape in the spiral direction along the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34. The second space portion 32 is formed in a spiral shape in a spiral direction along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34. In the rotating device 1a, the rotation direction of the rotor 2 is counterclockwise when the rotor 2 is viewed from the first end 21 side. “Directional spiral” means a shape formed by at least part of a left-handed spiral. “At least part of the left-handed helix” means that the number of rotations of the left-handed helix may be less than 1. Further, “spiral shape in a spiral direction along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34” means a shape formed by at least a part of a right-handed spiral. “At least part of a right-handed screw helix” means that the number of rotations of the right-handed screw helix may be less than one. In short, in the rotating device 1a of the present embodiment, the first space portion 31 and the second space portion 32 have spiral directions opposite to each other. In the flow path 3, the first space portion 31 and the second space portion 32 are arranged in the direction along the rotation center axis 23 of the rotor 2. As shown in FIG. 1B, the structure composed of the rotor 2 and the plurality of blade portions 9 includes a first structure portion 231 corresponding to the first space portion 31 and a second structure corresponding to the second space portion 32. Part 232.

  FIG. 1B is a schematic development view of the side surface of the rotor 2 and the blade portion 9. In FIG. 1B, the direction of the airflow generated by the rotation of the rotor 2 is schematically indicated by a white arrow. In the first space portion 31 and the second space portion 32, the direction of the airflow generated by the rotation of the rotor 2 is reversed.

  In the rotating device 1a, the first space portion 31 is formed in a spiral shape along the rotation direction of the rotor 2 (hereinafter also referred to as “first spiral direction”) from the inlet 33 toward the outlet 34. As a result, the angular velocity of the substance passing through the first space portion 31 can be made larger than the rotational angular velocity of the rotor 2. Therefore, in the first space portion 31 of the flow path 3, the rotating device 1a can further increase the centrifugal force that acts on the solid among the substances passing through the flow path 3, and can be downsized. .

  The rotating device 1a has a spiral shape in which the second space portion 32 extends in the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34 (hereinafter also referred to as “second spiral direction”). As a result, the angular velocity of the substance passing through the second space portion 32 can be made smaller than the rotational angular velocity of the rotor 2. Therefore, the rotating device 1a can reduce the pressure loss of the gas flowing through the flow path 3 in the second space portion 32 of the flow path 3. In other words, in the rotating device 1a, the flow passage 3 includes the second space portion 32, so that the air blowing capability can be improved and the load on the air blowing portion 4 can be reduced. Therefore, the rotation device 1a can achieve low power consumption because the flow path 3 includes the second space portion 32.

  In the rotation device 1a, the flow path 3 includes the first space portion 31 and the second space portion 32, so that the rotation center is larger than the case where the flow path 3 is formed in a straight line along the rotation center axis 23. The length of the flow path 3 can be increased while reducing the size in the direction along the axis 23.

  In order to form the first space portion 31 in a spiral shape in the first spiral direction, the rotating device 1a includes a portion (first blade portion) 901 corresponding to the first space portion 31 in each of the plurality of blade portions 9. , Formed in a spiral shape in the first spiral direction. Further, in order to form the second space portion 32 in a spiral shape in the second spiral direction, the rotating device 1a has a portion corresponding to the second space portion 32 (second blade portion) in each of the plurality of blade portions 9. 902 is formed in a spiral shape in the second spiral direction.

  Specifically, the rotating device 1 a of the present embodiment has two blade portions 9. The first blade portion 901 of one of the two blade portions 9 has one end at the upper left end in a front view (see FIG. 1A) as viewed from one direction orthogonal to the rotation center axis 23. Is at the center and the left end in the vertical direction, and the second blade portion 902 has one end at the center and the left end in the vertical direction and the other end at the lower left end. The first blade portion 901 in the other blade portion 9 of the two blade portions 9 has one end at the upper right end and the other end at the center and the right end in the vertical direction in the same front view, and the second blade portion 902 , One end is at the center and right end in the vertical direction, and the other end is at the lower right end.

  In the rotating device 1a of the present embodiment, the rotor 2 extends in the direction of the rotation center axis 23. The rotor 2 has an outer peripheral surface (side surface) 24 having a circular cross section orthogonal to the rotation center axis 23. The motor 5 rotates the rotor 2 around the rotation center shaft 23 in one direction.

  One or more (two in the present embodiment) blade portions 9 are provided on the outer peripheral surface 24 of the rotor 2. Each of the one or more blade portions 9 includes a first blade portion 901 and a second blade portion 902. The first blade portion 901 is provided at a portion on the inlet 33 side of the rotor 2. The second blade portion 902 is provided at a portion of the rotor 2 on the outlet 34 side. Therefore, the second blade portion 902 is provided at a portion closer to the outlet 34 of the rotor 2 than the first blade portion 901. The first blade portion 901 is formed in a spiral shape in the spiral direction (first spiral direction) along the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34. The second blade portion 902 is continuous from the end of the first blade portion 901 on the outlet 34 side, and spirals along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34 (first 2 spiral direction). That is, the spiral direction of the first blade portion 901 and the spiral direction of the second blade portion 902 are opposite to each other.

  In the rotating device 1a of the present embodiment, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portions of the first blade portions 901 in the one or more blade portions 9 are surrounded. A first space portion 31 is defined as the space. In the rotating device 1a of the present embodiment, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portions of the second blade portions 902 of the one or more blade portions 9. A second space portion 32 is defined as a space.

  In the rotating device 1 a, the rotor 2, the frame body 8, and a plurality of (one or more) blade portions 9 constitute a cyclone portion 20 that spirally rotates a substance that enters from the inlet 33 of the flow path 3.

  The rotating device 1a is provided with a plurality of flow paths 3. As a result, the rotating device 1a can be reduced in size and power consumption compared to the case where the number of the flow paths 3 is one. As an example, the rotating device 1a is provided with two flow paths 3. In FIG. 1B, the rotation direction of the substance passing through one of the two flow paths 3 when the air blowing unit 4 is operated in the rotating device 1a of FIG. 1A is schematically indicated by a two-dot chain arrow. The direction of rotation of the substance passing through the other flow path 3 is schematically shown by dotted arrows.

  The rotating device 1a includes, for example, a separator that separates solids in gas, an intake purification unit that emits purified gas by discharging solids in gas, an outdoor unit of an air conditioner, and mold spores in gas. It can be used for a floating mold sensor to detect. A separator is used for an air cleaner, for example. The intake air purification unit is provided, for example, in the front stage of the heat exchanger. The floating mold sensor is, for example, a light scattering floating mold sensor. In the floating mold sensor provided with the rotating device 1a, the rotating device 1a can generate a gas having an increased mold spore concentration, and the mold spore detection sensitivity can be increased.

  Below, the separator 201 provided with the rotating apparatus 1a is demonstrated based on FIGS.

  By providing the rotating device 1a, the separator 201 can efficiently separate a solid from a gas while achieving downsizing and low power consumption.

  The separator 201 preferably includes an outer shell 11 surrounding the rotating device 1a. Thereby, the separator 201 can protect the rotating device 1a by the outer shell 11. In the separator 201, the air blowing unit 4 is fixed to the outer shell 11. In the separator 201, the motor 5 is fixed to the outer shell 11. The separator 201 preferably includes the collection unit 10 that collects the solid discharged from the cyclone unit 20. Thereby, the separator 201 can collect the solid discharged from the cyclone unit 20 by the collection unit 10. More specifically, when the separator 201 operates the air blowing unit 4 and rotates the rotor 2 by the motor 5, the solid contained in the gas flowing into the flow path 3 is collected in the collecting unit 10. As a result, the gas whose solid concentration is reduced flows through the blower 4.

  The outer shell 11 can be configured to include, for example, a first cover portion 12, a first lid 13, a second cover portion 14, a second lid 15, and a third cover portion 16.

  The first cover portion 12 is formed in a cylindrical shape surrounding the frame body 8. More specifically, the first cover portion 12 is formed in a cylindrical shape. As a material of the first cover portion 12, for example, a metal, a synthetic resin, or the like can be employed.

  The first lid 13 is configured to cover the opening 121 on the upstream side of the first cover portion 12. The first lid 13 includes a plate-like first lid main body 131, and a plurality of intake portions through which gas passes are formed. The first lid body 131 has a circular outer peripheral shape. As a material of the first lid body 131, for example, metal, synthetic resin, or the like can be employed. Each of the plurality of intake portions is configured by a mesh 133 (see FIG. 4) of the mesh 132. The material of the mesh 132 can employ | adopt a metal, for example.

  The second cover portion 14 is formed in a cylindrical shape surrounding the motor 5. More specifically, the second cover part 14 is formed in a cylindrical shape. The inner diameter of the second cover part 14 is preferably larger than the inner diameter of the first cover part 12. As a material of the second cover part 14, for example, a metal, a synthetic resin, or the like can be used.

  The second lid 15 is configured to cover the opening 122 on the downstream side of the second cover portion 14. The second lid 15 includes a disc-shaped second lid main body 151, and a plurality of exhaust parts through which gas passes are formed in the second lid main body 151. As a material of the second lid body 151, for example, metal, synthetic resin, or the like can be used. Each of the plurality of exhaust parts is configured by a mesh of mesh 152. The material of the mesh 152 can employ | adopt a metal, for example.

  The third cover portion 16 is disposed between the first cover portion 12 and the second cover portion 14. The third cover portion 16 may be formed integrally with both the first cover portion 12 and the second cover portion 14, or may be formed integrally with only one of them, or separately from both. It may be formed. The 3rd cover part 16 is formed so that the collection part 10 can be attached or detached freely. The 3rd cover part 16 can be set as the structure provided with the frame part 160, the 1st wall part 161, the 2nd wall part 162, and the extension part 163, for example. The frame part 160 is formed in a cylindrical shape. The inner diameter of the frame portion 160 is set larger than the outer diameter of the frame body 8. The frame portion 160 is disposed around the rotation center axis 23. The first wall portion 161 is formed in an annular shape. The first wall portion 161 extends from the first end in the axial direction of the frame portion 160 toward the rotation center shaft 23 side. The second wall portion 162 is formed in an annular shape. The second wall portion 162 extends from the second end in the axial direction of the frame portion 160 toward the rotation center shaft 23 side. The extending portion 163 is formed to be inclined toward the first wall portion 161 and away from the rotation center axis 23. In other words, the extending portion 163 is formed in a tapered cylindrical shape in which the opening area gradually increases as it approaches the frame body 8 in the direction along the rotation center axis 23. The third cover portion 16 is set so that the inner diameter of the second wall portion 162 is smaller than the inner diameter of the first wall portion 161. The inner diameter of the first wall portion 161 is set larger than the outer diameter of the frame body 8. More specifically, the inner diameter of the first wall portion 161 is set to be the same as the inner diameter of the first cover portion 12. The inner diameter of the second wall portion 162 is set smaller than the inner diameter of the frame body 8.

  The collection unit 10 is a tray and can be removed from the third cover unit 16 by sliding. As a result, the separator 201 can easily take out or discard the solid collected in the collection unit 10. As shown in FIG. 5, the collection unit 10 can be configured to include an outer wall unit 100, a lower wall unit 102, a side wall unit 104, and an inner wall unit 103. The outer wall portion 100 is preferably formed in a circular arc shape with the rotation center axis 23 as the center in plan view. In the outer wall 100, the radius of curvature of the surface on the rotation center axis 23 side of the outer wall 100 is set larger than the outer diameter of the frame 8. The outer wall portion 100 is disposed along the frame portion 160 so as to close the opening 164 of the frame portion 160 of the third cover portion 16. The lower wall portion 102 extends from the lower end of the outer wall portion 100 toward the rotation center shaft 23 side. The lower wall portion 102 is formed in a fan shape in plan view. The lower wall portion 102 is disposed on the second wall portion 162. In short, the lower wall portion 102 is disposed along the second wall portion 162. The side wall portion 104 extends upward from each of both side edges of the lower wall portion 102. The inner wall portion 103 is formed to extend upward from the tip of the lower wall portion 102. The inner wall portion 103 is preferably formed in a circular arc shape with the rotation center axis 23 as the center in plan view. The inner wall 103 preferably has a radius of curvature of the surface of the inner wall 103 on the side of the rotation center axis 23 smaller than the inner diameter of the frame 8. The height of the inner wall portion 103 is set to be lower than the height of the outer wall portion 100. The collection part 10 is positioned with respect to the outer shell 11 in a direction orthogonal to the rotation center axis 23 when the inner wall part 103 hits the extension part 163. In the separator 201, the internal space of the collection unit 10 communicates with the internal space of the flow path 3 and the second cover unit 14. The “internal space of the collection part 10” means a space surrounded by the outer wall part 100, the lower wall part 102, the side wall part 104, and the inner wall part 103. In addition, it is preferable that the collection part 10 is provided with the protrusion etc. which a person grasps in order to remove the collection part 10 in the outer wall part 100, for example.

  The separator 201 can efficiently collect the solid that has entered the collection unit 10 by providing the collection unit 10 with the inner wall 103. In other words, the separator 201 suppresses the solid that has entered the collection unit 10 from jumping out of the collection unit 10 toward the rotation center shaft 23 by providing the collection unit 10 with the inner wall 103. It becomes possible. In addition, the separator 201 can suppress the generation of turbulent flow due to the extending portion 163 by the extending portion 163 being formed in a tapered cylindrical shape, and can blow the air stream from which the solid is separated. It becomes easy to guide to the part 4 side.

  The separator 201 can be configured to include a plurality of supports 19 (see FIG. 4) that support the outer shell 11. Thereby, the separator 201 can provide a space between the outer shell 11 and the installation surface (for example, floor surface) 30 of the separator 201. Although the support body 19 is comprised with the support | pillar, you may comprise not only this but a caster etc., for example. In FIG. 4, the gas flow is schematically shown by dotted arrows.

  The separator 201 preferably includes a lid portion 18 that covers the opening on the upstream side of the frame body 8. The lid portion 18 includes a disk-shaped main body 181, and a ventilation portion 183 is formed in the main body 181. When the rotating device 1a is applied to the separator 201, it is preferable that the frame body 8 in the rotating device 1a is formed such that the upstream end portion has a gradually decreasing opening area toward the upstream side. Thereby, the separator 201 can reduce pressure loss when gas enters the flow path 3.

  For the lid 18, for example, a metal, a synthetic resin, or the like can be used as the material of the main body 181. Moreover, the ventilation part 183 can be comprised by one through-hole formed in the center part of the main body 181, for example. The opening shape of the through hole is preferably a circular shape. The ventilation part 183 may be constituted by a plurality of meshes, for example. For example, metal can be used as the mesh material.

  The separator 201 may have a configuration in which an operation unit of an operation switch that starts operation of the air blowing unit 4 and the motor 5 is exposed from the outer shell 11.

  The separator 201 may include a setting unit that sets the rotation speed of the motor 5. Thus, the separator 201 can appropriately change the rotation speed of the motor 5 depending on the size of the solid required to be separated. The setting unit can be configured by, for example, a potentiometer.

  The separator 201 can be configured such that the air filter 17 is disposed on the upstream side of the motor 5 inside the second cover portion 14. As a result, the separator 201 can remove the solid that is not separated in the cyclone unit 20 and remains in the gas by the air filter 17, and can flow more purified gas from the exhaust unit to the outside. .

  For example, the separator 201 sets the shapes of the frame 8, the rotor 2, and the blade portion 9, and the rotation speed of the rotor 2 so that fine particles having a prescribed particle diameter can be separated. As an example of the fine particles having a prescribed particle diameter, particles having an aerodynamic particle diameter of 1.0 μm are assumed. “Aerodynamic particle size” means the diameter of a particle such that the aerodynamic behavior is equivalent to a spherical particle with a specific gravity of 1.0. Aerodynamic particle size is the particle size measured by the sedimentation rate of the particles. Examples of the solid that remains in the gas without being separated by the cyclone unit 20 include fine particles having a smaller particle diameter than the fine particles that are supposed to be separated by the cyclone unit 20 (in other words, fine particles having a small mass). . “Removing with the air filter 17” does not require 100% collection efficiency as an essential condition. However, the air filter 17 preferably has a higher collection efficiency of the solid contained in the gas.

  The air filter 17 is a filter used for removing fine particles from the gas. For example, the air filter 17 may be configured by weaving a filter medium in a pleat shape. As the air filter 17, for example, a HEPA filter (high efficiency particulate air filter) can be employed. The “HEPA filter” is an air filter having a particle collection rate of 99.97% or more with respect to particles having a particle size of 0.3 μm at a rated flow rate and an initial pressure loss of 245 Pa or less.

  In the separator 201, the cyclone unit 20 is disposed on the upstream side of the air filter 17, and solids can be collected by the collection unit 10. Therefore, the total mass of fine particles collected by the air filter 17 is increased. An increase in pressure loss due to the increase can be suppressed. Thereby, the separator 201 can reduce the replacement frequency of the air filter 17. The separator 201 is not limited to the configuration including the air filter 17. For example, in a device including the separator 201 (for example, an air purifier), an air filter such as a HEPA filter may be provided on the downstream side of the separator 201 separately from the separator 201.

In the separator 201 described above, the gas that has entered the outer shell 11 from the outside of the outer shell 11 through the plurality of intake portions enters the flow path 3. The solid contained in the gas that enters the inside from the outside of the outer shell 11 is centrifugal force in the direction from the rotation center axis 23 of the rotor 2 toward the inner peripheral surface 84 of the frame 8 when rotating in a spiral manner in the flow path 3. Receive. The solid subjected to the centrifugal force is directed to the inner peripheral surface 84 of the frame body 8 and spirally rotates along the inner peripheral surface 84 in the vicinity of the inner peripheral surface 84 of the frame body 8. In the separator 201, the solid that has exited the outlet 34 enters the collection unit 10 due to the centrifugal force acting on the solid. The centrifugal force acting on the solid is proportional to the mass of the solid and the radius of the circular motion of the solid. The radius of the circular motion is a distance between the rotation center axis 23 and the solid in a direction orthogonal to the rotation center axis 23. If the mass of the solid is m, the velocity of the solid is v, and the radius of the circular motion is r, the magnitude of the centrifugal force is mv ² / r. Here, assuming that the angular velocity is ω, since v = rω, the magnitude of the centrifugal force is mω ² r. In short, a centrifugal force proportional to the square of ω acts on the solid.

  The solid that has entered the collection unit 10 continues to fly somewhat due to the inertial force, but is pulled by gravity and falls in the collection unit 10. Thereby, the solid is collected in the collection unit 10.

  In the separator 201, the solid that has not been collected by the collection unit 10 is collected by the air filter 17. Thereby, in the separator 201, the purified gas passes through the fan 41 and flows out from the inside of the outer shell 11 to the outside of the outer shell 11 through the plurality of exhaust parts.

Separator 201, for example, it may be appropriately set air volume in the range of 250m ³ / h~3000m ³ / h.

  The separator 201 is not limited to an air purifier, and can be applied to, for example, a vacuum cleaner, a sizing device, and the like.

  FIG. 6 is a schematic front view, partly broken, of the separator 202 provided with the rotating device 1b of the first modification of the present embodiment.

  The rotating device 1b has the same basic configuration as the rotating device 1a, and is different in that the blower unit 4 is a blower 45. About the rotating device 1b, the same code | symbol is attached | subjected to the component similar to the rotating device 1a, and description is abbreviate | omitted.

  The blower 45 is configured to allow gas to flow in a lateral direction substantially orthogonal to the rotation center axis 23 of the rotor 2. The blower 45 is an electric blower and is formed so that the direction of the airflow can be changed. The rotating device 1b can cause the gas to flow through the flow path 3 by operating the air blowing unit 4 in the same manner as the rotating device 1a.

  In the separator 201, a plurality of exhaust parts that allow gas to pass are formed in the second lid 15, whereas the separator 202 has a mesh 152 that has a plurality of exhaust parts that allow gas to pass through the second cover part 14. Is formed. As a result, the separator 202 can be configured not to include the support 19 (see FIG. 4) included in the separator 201.

  FIG. 7 is a schematic configuration diagram of an air purification system 300 including a rotating device 1c according to a second modification of the present embodiment.

  The rotating device 1c includes a rotating device main body 1ca that includes the cyclone unit 20 and the motor 5 of the rotating device 1a and does not include the air blowing unit 4. The rotating device 1c is provided in the outdoor unit 301 disposed outside the dwelling unit 400. It is arranged behind the ceiling of the dwelling unit 400. The rotating device main body 1ca is configured to discharge the fine particles 61 in the air to the outside of the outdoor unit 301. The fine particles 61 are fine particles having the above-mentioned prescribed particle diameter, and are assumed to be particles having an aerodynamic particle diameter of 1.0 μm.

  The air purification system 300 includes a first duct 311 for flowing the air purified by the outdoor unit 301 into the dwelling unit 400, and a filter device 317 for further purifying the air supplied by the first duct 311. Prepare. The filter device 317 includes, for example, a HEPA filter as an air filter. In FIG. 7, the air flow is schematically shown by white arrows. FIG. 7 schematically shows the fine particles 61 that are separated from the air by the rotating device main body 1ca and discharged and the ultrafine particles 62 that are collected by the filter device 317. The ultrafine particles 62 are fine particles having a particle size smaller than that of the fine particles 61 and having a particle size that can be removed by a HEPA filter.

  In addition, the air purification system 300 includes a second duct 312 disposed between the filter device 317 and the air blowing unit 4, a distributor 318 disposed on the downstream side of the air blowing unit 4, and the air blowing unit 4 and the distributor 318. 3rd duct 313 arrange | positioned between these. A plurality of fourth ducts 314 for supplying air to each of a plurality of sections 401 (for example, a living room, a bedroom, etc.) in the dwelling unit 400 are connected to the distributor 318. The filter device 317, the second duct 312, the blower unit 4, the third duct 313, and the distributor 318 are disposed on the ceiling of the dwelling unit 400.

  The air purification system 300 can suppress the particulates 61 such as PM2.5 from reaching the filter device 317 by providing the outdoor unit 301 with the rotating device main body 1ca. As a result, the air purification system 300 can extend the life of the filter device 317.

  FIG. 8A is a schematic front view, partly broken, of a rotating device 1d according to a third modification of the present embodiment. FIG. 8B is a schematic development view of the main part of the rotating device 1d.

  The rotating device 1d has the same basic configuration as the rotating device 1a, the rotational direction of the rotor 2 is opposite to the rotating device 1a, and the two second space portions 32 in the flow path 3 are provided. , Etc. are different. Regarding the rotating device 1d, the same components as those of the rotating device 1a are denoted by the same reference numerals, and the description thereof is omitted.

  The rotating device 1d has a longer length of the rotor 2 in the direction along the rotation center axis 23 of the rotor 2 than the rotating device 1a.

  The flow path 3 in the rotating device 1 d is provided with the second space portion 32, the first space portion 31, and the second space portion 32 side by side in the direction along the rotation center axis 23 of the rotor 2. In short, in the flow path 3 in the rotating device 1d, the second space portion 32 is formed between the portion on the first end 21 side of the rotor 2 and the frame 8, and the portion on the second end 22 side of the rotor 2 and the frame. A second space portion 32 is formed between the body 8 and the first space portion 31 is formed between the intermediate portion of the rotor 2 and the frame body 8. Thereby, the rotating device 1d can reduce pressure loss compared to the rotating device 1a.

  Specifically, in the rotating device 1d of the third modified example, one or more (two in this modified example) blade portions 9 are provided on the outer peripheral surface 24 of the rotor 2. Each of the one or more blade portions 9 includes a first blade portion 901, a second blade portion 902, and a third blade portion 903. The first blade portion 901 is provided at an intermediate portion in the axial direction of the rotor 2. The second blade portion 902 is provided at a portion of the rotor 2 on the outlet 34 side. The third blade portion 903 is provided at a portion on the inlet 33 side of the rotor 2. The first blade portion 901 is formed in a spiral shape in the spiral direction (first spiral direction) along the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34. The second blade portion 902 is continuous from the end of the first blade portion 901 on the outlet 34 side, and spirals along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34 (first 2 spiral direction). The third blade portion 903 is continuous from the end of the first blade portion 901 on the inlet 33 side. The third blade portion 903 is formed in a spiral shape in the spiral direction (second spiral direction) along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34.

  In the rotating device 1d of this modification, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portions of the first blade portions 901 of the one or more blade portions 9. A first space portion 31 is defined as the space. In the rotating device 1d of this modification, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portion of the second blade portions 902 of the one or more blade portions 9. As a space, a second space portion 32 on the outlet 34 side is defined. Further, in the rotating device 1d of the present modification, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the adjacent portions of the third blade portions 903 of the one or more blade portions 9 are As the enclosed space, a second space portion 32 on the inlet 33 side is defined.

  FIG. 9A is a schematic front view, partly broken, of a rotating device 1e of a fourth modified example of the present embodiment. FIG. 9B is a schematic development view of the main part of the rotating device 1e.

  The rotating device 1e has the same basic configuration as the rotating device 1a, and is different in the point that two second space portions 32 are provided in the flow path 3, the shape of the rotor 2, and the like. In addition, regarding the rotating device 1e, the same components as those of the rotating device 1a are denoted by the same reference numerals and description thereof is omitted.

  The rotor 2 is formed in a shape in which at least one of the first end 21 and the second end 22 tapers along the rotation center axis 23. In at least one flow path 3, a second space portion 32 is formed between a portion of the rotor 2 formed in a tapered shape and the frame body 8. Thereby, the rotating device 1e can enlarge the area of the blade | wing part 9 which prescribes | regulates the 2nd space part 32 of the flow path 3, and it becomes possible to further reduce a pressure loss. Therefore, the rotating device 1e can further reduce power consumption.

  Specifically, in the rotating device 1e according to the fourth modified example, the rotor 2 includes a columnar intermediate portion 25 located in the intermediate portion in the axial direction and tapered toward the outer side in the axial direction provided on both sides in the axial direction. First and second tapered portions 26 and 27 having a shape to be formed.

  The outer peripheral surface 24 of the rotor 2 is provided with one or more (two in this modification) blade portions 9. Each of the one or more blade portions 9 includes a first blade portion 901, a second blade portion 902, and a third blade portion 903. The first blade portion 901 is provided in the intermediate portion 25 of the rotor 2. The second blade portion 902 is provided in the first tapered portion 26 on the outflow port 34 side of the rotor 2. The third blade portion 903 is provided in the second tapered portion 27 on the inlet 33 side of the rotor 2. The first blade portion 901 is formed in a spiral shape in the spiral direction (first spiral direction) along the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34. The second blade portion 902 is continuous from the end of the first blade portion 901 on the outlet 34 side, and spirals along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34 (first 2 spiral direction). The third blade portion 903 is continuous from the end of the first blade portion 901 on the inlet 33 side. The third blade portion 903 is formed in a spiral shape in the spiral direction (second spiral direction) along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34.

  In the rotating device 1e of the present modification, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portions of the first blade portions 901 of the one or more blade portions 9. A first space portion 31 is defined as the space. In the rotating device 1e of this modification, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the adjacent portion of the second blade portions 902 of the one or more blade portions 9. As a space, a second space portion 32 on the outlet 34 side is defined. In the rotating device 1e of the present modification, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portions of the third blade portions 903 in the one or more blade portions 9 are As the enclosed space, a second space portion 32 on the inlet 33 side is defined.

  The rotor 2 has a conical tapered shape. The rotor 2 is formed such that both the first end 21 and the second end 22 taper along the rotation center axis 23, but only one of the first end 21 and the second end 22 is tapered. It may be formed in the shape to do.

  FIG. 10A is a schematic front view, partly broken, of a rotating device 1 f of a fifth modification of the present embodiment. FIG. 10B is a schematic development view of a main part of the rotating device 1f.

  The rotating device 1f has the same basic configuration as the rotating device 1a, and is different in that two second space portions 32 in the flow path 3 are provided, the shape of the frame body 8, and the like. In addition, regarding the rotating device 1f, the same components as those of the rotating device 1a are denoted by the same reference numerals, and description thereof is omitted.

  The frame 8 is formed in a tapered frame shape in which the opening area gradually increases in the direction from the first end 21 to the second end 22 of the rotor 2. Thereby, the rotating device 1f is easy to roll when the solid hits the inner peripheral surface 84 of the frame 8, and the solid adheres to or accumulates on the inner peripheral surface 84 of the frame 8. It becomes possible to suppress. The frame 8 has a circular opening shape, and the inner diameter gradually increases in the direction from the first end 21 to the second end 22 of the rotor 2. In short, the frame body 8 is formed in a tapered cylindrical shape.

  In the rotor 2, an intermediate portion between the first end 21 and the second end 22 is formed in a truncated cone shape, and each of the first end 21 and the second end 22 is formed in a tapered shape. In the flow path 3, a second space portion 32 is formed between a portion of the rotor 2 formed in a tapered shape and the frame body 8. Thereby, the rotating device 1 f can increase the area of the blade portion 9 that defines the second space portion 32 of the flow path 3, and can further reduce the pressure loss. Therefore, the rotating device 1f can further reduce power consumption.

  Specifically, in the rotating device 1f of the fifth modified example, the frame 8 is formed in a cylindrical shape whose opening area gradually increases from the inlet 33 side toward the outlet 34 side.

  The rotor 2 is located in an intermediate portion in the axial direction, and has a truncated cone-shaped intermediate portion 25 whose cross-sectional area gradually increases from the inlet 33 side toward the outlet 34 side, and is provided on both sides in the axial direction and tapered. First and second tapered portions 26, 27 having a shape.

  The outer peripheral surface 24 of the rotor 2 is provided with one or more (two in this modification) blade portions 9. Each of the one or more blade portions 9 includes a first blade portion 901, a second blade portion 902, and a third blade portion 903. The first blade portion 901 is provided in the intermediate portion 25 of the rotor 2. The second blade portion 902 is provided in the first tapered portion 26 on the outflow port 34 side of the rotor 2. The third blade portion 903 is provided in the second tapered portion 27 on the inlet 33 side of the rotor 2. The first blade portion 901 is formed in a spiral shape in the spiral direction (first spiral direction) along the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34. The second blade portion 902 is continuous from the end of the first blade portion 901 on the outlet 34 side, and spirals along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34 (first 2 spiral direction). The third blade portion 903 is continuous from the end of the first blade portion 901 on the inlet 33 side. The third blade portion 903 is formed in a spiral shape in the spiral direction (second spiral direction) along the direction opposite to the rotation direction of the rotor 2 from the inlet 33 toward the outlet 34.

  In the rotating device 1f of this modification, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame body 8, and the adjacent portions of the first blade portions 901 of the one or more blade portions 9. A first space portion 31 is defined as the space. In the rotating device 1f of the present modification, the rotor 2 is surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the adjacent portion of the second blade portions 902 of the one or more blade portions 9. As a space, a second space portion 32 on the outlet 34 side is defined. Further, in the rotating device 1f of the present modification, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the adjacent portions of the third blade portions 903 of the one or more blade portions 9 are As the enclosed space, a second space portion 32 on the inlet 33 side is defined.

  The rotor 2 has a conical tapered shape. The rotor 2 is formed such that both the first end 21 and the second end 22 taper along the rotation center axis 23, but only one of the first end 21 and the second end 22 is tapered. It may be formed in the shape to do.

(Embodiment 2)
Below, the rotating apparatus 1g of this embodiment is demonstrated based on FIG. 11A and 11B. Regarding the rotating device 1g, the same components as those of the rotating device 1a of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. In FIG. 11B, the direction of the air flow generated by the rotation of the rotor 2 is schematically indicated by a white arrow. The first space portion 31 and the second space portion 32 differ in the direction of airflow generated by the rotation of the rotor 2. In FIG. 11B, the rotation direction of the substance passing through the flow path 3 when the air blowing unit 4 is operated in the rotating device 1g of FIG. 11A is schematically shown by a two-dot chain line arrow.

  In the rotating device 1g, the at least one flow path 3 includes the first space portion 31 formed along the rotation direction of the rotor 2 in a plane orthogonal to the rotation center axis 23 of the rotor 2, and the second space portion 32. And formed along the rotation center axis 23 of the rotor 2. Thereby, the rotating device 1g is configured such that the first space portion 31 is formed along the rotation direction of the rotor 2 in a plane orthogonal to the rotation center axis 23 of the rotor 2, and thereby passes through the first space portion 31. Can be made larger than the rotational angular velocity of the rotor 2. Therefore, in the first space portion 31 of the flow path 3, the rotating device 1g can further increase the centrifugal force that acts on the solid among the substances passing through the flow path 3, and can be downsized. . In the rotating device 1g, since the second space portion 32 is formed along the rotation center axis 23 of the rotor 2, the angular velocity of the substance passing through the second space portion 32 can be the same as the rotation angular velocity of the rotor 2. It becomes possible. Therefore, the rotating device 1g can reduce the pressure loss of the gas flowing through the flow path 3 in the second space 32 of the flow path 3. In other words, in the rotating device 1g, the flow path 3 includes the second space portion 32, so that the air blowing capability can be improved and the load on the air blowing portion 4 can be reduced. Therefore, the rotation device 1g can achieve low power consumption because the flow path 3 includes the second space portion 32.

  Since the flow path 3 includes the first space part 31 and the second space part 32, the rotation device 1g rotates as compared with the case where the flow path 3 is linear along the rotation center axis 23 over the entire length. It is possible to increase the length of the flow path 3 while reducing the size in the direction along the central axis 23.

  The rotating device 1g forms a first portion 91 corresponding to the first space portion 31 in the blade portion 9 in an arc shape along the rotation direction of the rotor 2 in each plane orthogonal to the rotation center axis 23 of the rotor 2. It is. Thereby, the rotating device 1g can make the 1st space part 31 the shape along the rotation direction of the rotor 2 in the surface orthogonal to the rotation center axis | shaft 23 of the rotor 2. As shown in FIG. Further, the rotating device 1g has a second portion 92 corresponding to the second space portion 32 in the blade portion 9 formed in a linear shape along the rotation center axis 23 when viewed from the direction orthogonal to the rotation center axis 23. . Thereby, the rotating device 1g can make the 2nd space part 32 the shape along the rotation center axis | shaft 23 of the rotor 2. As shown in FIG. It is preferable that the blade portion 9 protrudes outward in the radial direction of the rotor 2 from the outer peripheral surface 24 of the rotor 2.

  In short, in the rotating device 1 g of the present embodiment, the rotor 2 extends in the direction of the rotation center axis 23. The rotor 2 has an outer peripheral surface (side surface) 24 having a circular cross section orthogonal to the rotation center axis 23. The motor 5 rotates the rotor 2 in one direction.

  The blade portion 9 is provided on the outer peripheral surface 24 of the rotor 2. The blade portion 9 includes three or more first portions 91 and two or more second portions 92. The first portion 91 is formed on the outer peripheral surface 24 of the rotor 2 and has an arc shape along the rotation direction of the rotor 2 in a plane orthogonal to the rotation center axis 23 of the rotor 2. That is, the first portion 91 has a fan shape centered on the rotation center axis 23 of the rotor 2 and has an inner diameter equal to the outer diameter of the rotor 2 and an outer diameter equal to the inner diameter of the frame body 8. The first portion 91 has a first end 911 and a second end 912 at both ends in the circumferential direction of the rotor 2. The length of the first portion 91 (the length in the circumferential direction) is shorter than the outer periphery of the rotor 2 and longer than half of the outer periphery of the rotor 2. The second portion 92 is formed on the outer peripheral surface 24 of the rotor 2 and has a straight plate shape along the rotation center axis 23 of the rotor 2. The second part 92 includes a first end 911 of one first part 91 and a second end 912 of another first part 91 (the ends on the opposite sides in the circumferential direction in the two first parts 91). Connect.

  That is, the blade portion 9 is formed on the outer peripheral surface 24 of the rotor 2 in a spiral shape having a step (spiral step shape).

  In the rotating device 1g of the present embodiment, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and two adjacent first portions 91 among the three or more first portions 91 in the blade portion 9, A first space portion 31 is defined as a space surrounded by. In the rotating device 1g of the present embodiment, the space surrounded by the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the two second portions 92 adjacent to each other in the blade portion 9 is the second space. A space portion 32 is defined.

  In the rotating device 1g, the connecting portion 93 between the first portion 91 and the second portion 92 in the blade portion 9 may have a rounded shape. Thereby, the rotating device 1g can further suppress the occurrence of turbulent flow.

  FIG. 12 is a schematic front view, partly broken, of the separator 203 provided with the rotating device 1g. The basic configuration of the separator 203 is substantially the same as that of the separator 201 (see FIGS. 3 and 4) described in the first embodiment, except that a rotating device 1g is provided instead of the rotating device 1a. Regarding the separator 203, the same components as those of the separator 201 are denoted by the same reference numerals, and the description thereof is omitted.

  When the rotating device 1g is applied to the separator 203, it is preferable that the frame body 8 in the rotating device 1g is formed in a shape in which the upstream end portion gradually decreases in opening area toward the upstream side. Thereby, the separator 203 can reduce pressure loss when gas enters the flow path 3.

  By providing the rotating device 1g, the separator 203 can efficiently separate a solid from a gas while achieving downsizing and low power consumption.

  A rotating device 1h according to a modification of the present embodiment will be described with reference to FIGS. 13A, 13B, and 14. FIG. FIG. 13A is a schematic front view in which the rotating device 1h is partially broken. FIG. 13B is a schematic development view of the main part of the rotating device 1h.

  The rotating device 1h has the same basic configuration as the rotating device 1g, and is different in that a plurality of flow paths 3 are provided. In addition, regarding the rotating device 1e, the same components as those of the rotating device 1a are denoted by the same reference numerals and description thereof is omitted.

  Since the rotating device 1h is provided with a plurality of flow paths 3, the flow rate of the gas flowing in the space between the rotor 2 and the frame body 8 in the rotating apparatus 1h is larger than that in the case where the number of the flow paths 3 is one. It is possible to increase the number and reduce the size. In addition, since the rotating device 1h is provided with a plurality of flow paths 3, if the flow rate of the gas flowing in the space between the rotor 2 and the frame body 8 is the same, there is one flow path 3. In comparison, pressure loss can be reduced, and power consumption can be reduced. As an example, the rotating device 1h is provided with two flow paths 3. In FIG. 13B, the rotation direction of the substance that passes through one of the two flow paths 3 when the air blowing unit 4 is operated in the rotating device 1h of FIG. 13A is schematically indicated by a two-dot chain line arrow. The direction of rotation of the substance passing through the other flow path 3 is schematically shown by dotted arrows.

  Specifically, in the rotating device 1 h of the present modification, two or more (two in the present modification) blade portions 9 are provided on the outer peripheral surface 24 of the rotor 2. Each of the two or more blade portions 9 includes two or more first portions 91 and one or more second portions 92. The first portion 91 is formed on the outer peripheral surface 24 of the rotor 2 and has an arc shape along the rotation direction of the rotor 2 in a plane orthogonal to the rotation center axis 23 of the rotor 2. That is, the first portion 91 has a fan shape centered on the rotation center axis 23 of the rotor 2 and has an inner diameter equal to the outer diameter of the rotor 2 and an outer diameter equal to the inner diameter of the frame body 8. The first portion 91 has a first end 911 and a second end 912 at both ends in the circumferential direction of the rotor 2. The length of the first portion 91 (the length in the circumferential direction) is shorter than half of the outer periphery of the rotor 2. The second portion 92 is formed on the outer peripheral surface 24 of the rotor 2 and has a straight plate shape along the rotation center axis 23 of the rotor 2. The second part 92 connects the first end 911 of one first part 91 and the second end 912 of another first part 91.

  That is, each of the two or more blade portions 9 is formed on the outer peripheral surface 24 of the rotor 2 in a spiral shape having a step (spiral step shape).

  In the rotating device 1h of the present modification, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the first portion 91 of two adjacent blade portions 9 out of two or more blade portions 9, A first space portion 31 is defined as the enclosed space. In the rotating device 1 h of the present modification, the outer peripheral surface 24 of the rotor 2, the inner peripheral surface 84 of the frame 8, and the second portion 92 of the two adjacent blade portions 9 among the two or more blade portions 9, A second space portion 32 is defined as the enclosed space.

  The materials, numerical values, and the like described in the first and second embodiments are merely preferable examples and are not intended to be limited thereto. Furthermore, the above-described Embodiments 1 and 2 and the rotating devices 1a to 1h according to the modifications can be appropriately modified in configuration without departing from the scope of the technical idea. For example, in the rotation devices 1a to 1h, the flow path 3, the motor 5, and the air blowing section 4 are arranged in the order of the flow path 3, the motor 5, and the air blowing section 4 in the direction along the rotation center axis 23. The order may be changed as appropriate. For example, the rotating devices 1a and 1c to 1h may include the air blowing unit 4 on the upstream side instead of the downstream side of the cyclone unit 20. Further, in the rotating devices 1a, 1c to 1h, the blower unit 4 may be configured by a blower 45 instead of the fan 41.

  As is apparent from the above description, the rotating device of the first aspect includes a rotor (2), a frame (8) that surrounds the rotor (2) and is arranged coaxially with the rotor (2), and the rotor. (2) and at least one flow path (3) formed between the frame (8), a blower (4), and a motor (5). The at least one flow path (3) has an inlet (33) on the first end (21) side of the rotor (2) in the direction along the rotation center axis (23) of the rotor (2), and the rotor There is an outlet (34) on the second end (22) side of (2). The blower (4) is configured to flow gas through at least one flow path (3). The motor (5) is configured to rotate at least one flow path (3) about the rotation center axis (23) by rotating the rotor (2). The at least one flow path (3) includes a first space portion (31) that makes the angular velocity of the passing material larger than the rotational angular velocity of the rotor (2), and the angular velocity of the passing material is less than or equal to the rotational angular velocity of the rotor (2). And a second space part (32).

  In the rotating device of the second aspect, in the first aspect, the first space portion (31) is a spiral direction along the rotational direction of the rotor (2) from the inlet (33) toward the outlet (34). The second space portion (32) is formed in a spiral shape in the spiral direction along the direction opposite to the rotation direction of the rotor (2) from the inflow port (33) toward the outflow port (34). Is formed.

  In the rotating device according to the third aspect, in the second aspect, at least one of the first end (21) and the second end (22) is tapered along the rotation center axis (23). It is formed in the shape to do. In the at least one flow path (3), a second space (32) is formed between a portion (26, 27) formed in a tapered shape of the rotor (2) and the frame (8). ing.

  In the rotating device of the fourth aspect, in the first aspect, the first space portion (31) is along the rotation direction of the rotor (2) in a plane orthogonal to the rotation center axis (23) of the rotor (2). The second space (32) is formed along the rotation center axis (23) of the rotor (2).

  In the rotating device of the fifth aspect, in any one of the first to fourth aspects, a plurality of flow paths (3) are provided.

  In the rotating device according to the sixth aspect, in any one of the first to fifth aspects, the frame (8) is in a direction from the first end (21) to the second end (22) of the rotor (2). It is formed in a taper frame shape with an opening area gradually increasing.

  In the rotating device according to the seventh aspect, in any one of the first to sixth aspects, the air blowing section (4) is a fan (41) or a blower (45).

  In the rotating device according to the eighth aspect, in the first aspect, the rotor (2) has an outer peripheral surface (24) having a circular cross section perpendicular to the rotation center axis (23). At least one blade portion (9) is provided on the outer peripheral surface (24) of the rotor (2). The at least one blade portion (9) includes a first blade portion (901) formed in a spiral shape in the first spiral direction on the outer peripheral surface (24) of the rotor (2), and an outer peripheral surface (24 of the rotor (2)). ) Includes a second blade portion (902) formed in a spiral shape in the second spiral direction that is opposite to the first spiral direction. The second blade portion (902) is continuous from the end on the outlet (34) side of the first blade portion (901). The first space portion (31) is defined as a space surrounded by the outer peripheral surface (24) of the rotor (2), the frame body (8), and the adjacent portion of the first blade portion (901). The The second space portion (32) is defined as a space surrounded by the outer peripheral surface (24) of the rotor (2), the frame body (8), and the adjacent portion of the second blade portion (902). The

  In the rotating device according to the ninth aspect, in the first aspect, the rotor (2) has an outer peripheral surface (24) having a circular cross section perpendicular to the rotation center axis (2). At least one blade portion (9) is provided on the outer peripheral surface (24) of the rotor (2). At least one blade | wing part (9) contains two or more 1st site | parts (91) and one or more 2nd site | parts (92). The first portion (91) is formed in an arc shape extending along the rotation direction of the rotor (2) on the outer peripheral surface (24) of the rotor (2). The second part (92) extends in the direction of the rotation center axis (23) on the outer peripheral surface (24) of the rotor (2). The second part (92) is a first end (911) in the circumferential direction of one first part (91) of two or more first parts (91) and two or more first parts (91). The second end (912) in the circumferential direction in the other first portion (91) of The first space portion (31) is defined as a space surrounded by the outer peripheral surface (24) of the rotor (2), the frame body (8), and the two adjacent first portions (91). The second space portion (32) is defined as a space surrounded by the outer peripheral surface (24) of the rotor (2), the frame body (8), and two adjacent second portions (92).

Claims (7)

A rotor, a frame surrounding the rotor and coaxially arranged with the rotor, at least one flow path formed between the rotor and the frame, a blower, and a motor. ,
The at least one flow path has an inlet on the first end side of the rotor in a direction along the rotation center axis of the rotor, and an outlet on the second end side of the rotor,
The blower is configured to flow gas through the at least one flow path,
The motor is configured to rotate the at least one flow path about the rotation center axis by rotating the rotor;
The at least one flow path includes: a first space portion in which an angular velocity of a passing substance is larger than a rotation angular velocity of the rotor; and a second space portion in which an angular velocity of the passing substance is equal to or less than the rotation angular velocity of the rotor. Prepared ,
The first space portion is formed in a spiral shape in a spiral direction along the rotation direction of the rotor from the inlet toward the outlet, and the second space is directed from the inlet toward the outlet. Formed in a spiral shape in a spiral direction along the direction opposite to the rotation direction of the rotor,
A rotating device characterized by that. The rotor is formed in a shape in which at least one of the first end and the second end tapers along the rotation center axis,
In the at least one flow path, the second space is formed between a portion of the rotor formed in the tapered shape and the frame body.
The rotating device according to claim 1. A rotor, a frame surrounding the rotor and coaxially arranged with the rotor, at least one flow path formed between the rotor and the frame, a blower, and a motor. ,
  The at least one flow path has an inlet on the first end side of the rotor in a direction along the rotation center axis of the rotor, and an outlet on the second end side of the rotor,
  The blower is configured to flow gas through the at least one flow path,
  The motor is configured to rotate the at least one flow path about the rotation center axis by rotating the rotor;
  The at least one flow path includes: a first space portion in which an angular velocity of a passing substance is larger than a rotation angular velocity of the rotor; and a second space portion in which an angular velocity of the passing substance is equal to or less than the rotation angular velocity of the rotor. Prepared,
The frame is formed in a tapered frame shape in which an opening area gradually increases in a direction from the first end to the second end of the rotor.
A rotating device characterized by that. A plurality of the flow paths are provided,
The rotating device according to any one of claims 1 to 3, wherein The air blowing unit is a fan or a blower.
The rotating device according to any one of claims 1 to 4, wherein the rotating device is characterized in that A rotor, a frame surrounding the rotor and coaxially arranged with the rotor, at least one flow path formed between the rotor and the frame, a blower, and a motor. ,
The at least one flow path has an inlet on the first end side of the rotor in a direction along the rotation center axis of the rotor, and an outlet on the second end side of the rotor,
The blower is configured to flow gas through the at least one flow path,
The motor is configured to rotate the at least one flow path about the rotation center axis by rotating the rotor;
The at least one flow path includes: a first space portion in which an angular velocity of a passing substance is larger than a rotation angular velocity of the rotor; and a second space portion in which an angular velocity of the passing substance is equal to or less than the rotation angular velocity of the rotor. Prepared,
The rotor has an outer peripheral surface having a circular cross section perpendicular to the rotation center axis,
At least one blade portion is provided on the outer peripheral surface of the rotor,
The at least one blade portion includes a first blade portion formed in a spiral shape in the first spiral direction on the outer peripheral surface of the rotor, and a direction opposite to the first spiral direction on the outer peripheral surface of the rotor. A second blade portion formed in a spiral shape in a second spiral direction, and the second blade portion is continuous from the end on the outlet side of the first blade portion,
The first space portion is defined as a space surrounded by the outer peripheral surface of the rotor, the frame, and an adjacent portion of the first blade portion,
The second space is defined as a space surrounded by the outer peripheral surface of the rotor, the frame, and an adjacent portion of the second blade portion.
A rotating device characterized by that. A rotor, a frame surrounding the rotor and coaxially arranged with the rotor, at least one flow path formed between the rotor and the frame, a blower, and a motor. ,
The at least one flow path has an inlet on the first end side of the rotor in a direction along the rotation center axis of the rotor, and an outlet on the second end side of the rotor,
The blower is configured to flow gas through the at least one flow path,
The motor is configured to rotate the at least one flow path about the rotation center axis by rotating the rotor;
The at least one flow path includes: a first space portion in which an angular velocity of a passing substance is larger than a rotation angular velocity of the rotor; and a second space portion in which an angular velocity of the passing substance is equal to or less than the rotation angular velocity of the rotor. Prepared,
The rotor has an outer peripheral surface having a circular cross section perpendicular to the rotation center axis,
At least one blade portion is provided on the outer peripheral surface of the rotor,
The at least one blade portion is
Three or more first portions formed in an arc shape extending along the rotation direction of the rotor on the outer peripheral surface of the rotor;
A first end in the circumferential direction of one of the two or more first parts and the two or more first parts of the rotor extending in the direction of the rotation center axis on the outer peripheral surface of the rotor. Two or more second parts connecting the second ends in the circumferential direction of the other first part,
Including
The first space portion is defined as a space surrounded by the outer peripheral surface of the rotor, the frame, and two adjacent first portions among the three or more first portions,
The second space portion is defined as a space surrounded by the outer peripheral surface of the rotor, the frame, and two adjacent second portions of the two or more second portions.
A rotating device characterized by that.

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