JP2020175334A5 - - Google Patents

Description

In order to achieve this object, the cyclone separation device according to the present invention is provided with an inflow port for inflowing air into the housing, a swirling flow generating means for generating a swirling airflow in the housing, and a back surface of the housing . A space division plate that divides the inside of the housing into an outer peripheral side close to the side surface of the housing and an inner peripheral side including the center of the housing. A separation chamber formed on the outer peripheral side and a swivel chamber formed on the inner peripheral side by a plate , a through hole for communicating the separation chamber and the swivel chamber, the inside of the separation chamber, and a housing . When the discharge port that is always open by communicating with the outside of the quadrant and the discharge port are placed at the lowest position with the central axis of the swivel chamber horizontal, inside the separation chamber , above the discharge port. The inflow airflow control plate is provided with an inflow airflow control plate to be arranged , the inflow airflow control plate is a plate body whose through hole side is inclined downward when viewed from the front side of the housing , and the separation chamber is centered on the central axis. The through hole has an annular space straddling four quadrants in the designated coordinate plane, the through hole is located in the second quadrant of the coordinate plane in the airflow swirling direction in the swirl chamber, and the separation chamber is the third quadrant of the coordinate plane. It has a curved surface along the space division plate in the quadrant and the fourth quadrant , and has two planes parallel to the axis of the coordinate plane in the first quadrant and the second quadrant , respectively , and the bottom surface of the separation chamber is on the side surface side of the separation chamber. The bottom surface of the separation chamber is composed of a curved surface or a continuous surface of a curved surface and an inclined surface, and the bottom surface of the separation chamber is formed at a position higher than the discharge port and has a downward slope toward the discharge port. It is a thing, and thereby achieves the intended purpose.

The cyclone separation device according to the present invention is provided with an inflow port for inflowing air into the housing, a swirling flow generating means for generating a swirling airflow inside the housing, and a swirling flow generating means provided on the back surface of the housing to allow air to flow out of the housing . It is formed by a space dividing plate that divides the inside of the housing into an outer peripheral side close to the side surface of the housing and an inner peripheral side including the center of the housing , and a space dividing plate located on the outer peripheral side by the space dividing plate. The separation chamber and the swivel chamber formed on the inner peripheral side, the through hole for communicating the separation chamber and the swivel chamber, and the inside and the casing of the separation chamber.
When the discharge port that communicates with the outside of the body and is always open and the discharge port are placed at the lowest position with the central axis of the swivel chamber horizontal, the upper part of the discharge port inside the separation chamber . The inflow airflow control plate is provided with an inflow airflow control plate arranged in a plate body in which the through hole side is inclined downward when viewed from the front side of the housing , and the separation chamber has a central axis. It has an annular space that straddles four quadrants in the central coordinate plane, the through hole is located in the second quadrant of the coordinate plane in the airflow swirling direction in the swirl chamber, and the separation chamber is the second quadrant of the coordinate plane. It has curved surfaces along the space division plate in the third and fourth quadrants , and has two planes parallel to the axes of the coordinate planes in the first and second quadrants , and the bottom surface of the separation chamber is the side surface of the separation chamber. A curved surface with a raised side or a continuous surface of a curved surface and an inclined surface constitutes a separation chamber bottom surface, and the separation chamber bottom surface is formed at a position higher than the discharge port and has a downward slope toward the discharge port. It is something that is.

Further, in the cyclone separation device according to the present invention , two planes parallel to the axis of the coordinate plane constitute a separation chamber side surface which is a side surface of the separation chamber and a separation chamber top surface which is the top surface of the separation chamber. The bottom surface of the separation chamber includes a curved surface with the side surface of the separation chamber raised or a continuous surface of the curved surface and the inclined surface to form the bottom surface of the separation chamber, and is a surface including the central axis and intersecting the separation chamber. The cross section increases the cross-sectional area toward the top surface of the separation chamber within the range of contact with the side surface of the separation chamber.

As a result, in the third and fourth quadrants, the bottom surface of the separation chamber has a downward slope toward the discharge port, so that the foreign matter discharged from the through hole into the separation chamber rolls down along the slope and is discharged. Foreign matter tends to collect near the exit, which promotes the discharge of foreign matter. In addition, because the side surface of the separation chamber is erected vertically and the area of the cross section intersecting the side surface of the separation chamber is increased in the direction of rotation toward the second quadrant, the airflow toward the upper part of the separation chamber can be increased. Since it faces upward along the vertical surface, foreign matter rides on the airflow and scatters upward in the vertical direction, and since the top surface of the separation chamber is a horizontal plane, the rising airflow is the separation chamber sky. It easily collides with the surface and loses momentum. Therefore, in the upper part of the separation chamber on the through hole side, even if the foreign matter soars up, it is suppressed from falling directly into the through hole, and in the upper part of the separation chamber on the side without the through hole, the foreign matter circulates above the outside of the space dividing plate. It is possible to suppress the movement toward the through hole side, and further suppress the re-scattering phenomenon.

Further, in the cyclone separation device according to the present invention , the housing has a hexahedron shape, and a partition plate for partitioning the front side of the housing and the back side of the housing is provided in the housing , and the back side of the housing is provided. On the four side surfaces adjacent to the back surface of the housing, inlets are provided from the partition plate to the back surface to communicate with the swirling flow generating means, and a space is provided on the front side of the housing . The dividing plate, the bottom of the separation chamber, the top surface of the separation chamber, the side surface of the separation chamber, and the discharge port are arranged respectively , and the part of the inner wall surface of the housing on the front side of the partition plate is the top surface of the separation chamber. It is formed by the side of the separation chamber and the side surface of the separation chamber.

As shown in FIG. 4, when the discharge port 12 is arranged at the lowest position with the central axis 6 horizontal, the through hole 16 is formed in the airflow swirling direction (FIG. 4, in the direction of the white arrow) in the swivel chamber 14. Located in the second quadrant 34 of the coordinate plane 33, the separation chamber 15 has a curved surface 29b along the space dividing plate 13 in the third quadrant 35 and the fourth quadrant 36 of the coordinate plane 33, and the first quadrant 37 and the first quadrant . The two quadrants 34 have two planes parallel to the X-axis 38 and the Y-axis 39, which form the coordinate plane 33, respectively. The two planes parallel to the X-axis 38 and the Y-axis 39 are the separation chamber side surface 30 and the separation chamber top surface 31 shown in FIG.

The separation chamber 15 varies in cross section around the central axis 6. Since the separation chamber 15 is an annular space, a cross section around the central axis 6 can be defined. The cross section of the separation chamber 15 shows a cross section of one side of a portion where the surface including the central axis 6 intersects the space of the separation chamber. On one side, since the separation chamber 15 is an annular space surrounding the central axis 6, when considering the surface including the central axis 6, there are two portions intersecting the space of the separation chamber 15 , but one of them. It means to represent a cross section.

Claims (4)

An inflow port that allows air to flow into the housing ,
A swirling airflow generating means for generating a swirling airflow in the housing ,
An outlet provided on the back surface of the housing to allow air to flow out of the housing,
A space dividing plate that partitions the inside of the housing into an outer peripheral side close to the side surface of the housing and an inner peripheral side including the central portion of the housing.
A separation chamber located on the outer peripheral side and a swivel chamber formed on the inner peripheral side by the space dividing plate .
A through hole that communicates the separation chamber and the swivel chamber,
An outlet that allows the inside of the separation chamber and the outside of the housing to communicate with each other and is always open .
When the discharge port is arranged at the lowest position with the central axis of the swivel chamber horizontal , the inflow airflow control plate arranged above the discharge port inside the separation chamber and
Equipped with
The inflow airflow control plate forms a plate body whose through hole side is inclined downward when viewed from the front side of the housing.
The separation chamber has an annular space straddling four quadrants in a coordinate plane centered on the central axis.
The through hole is located in the second quadrant of the coordinate plane in the airflow swirling direction in the swirl chamber.
The separation chamber has curved surfaces along the space dividing plate in the third and fourth quadrants of the coordinate plane, and two parallel to the axis of the coordinate plane in the first quadrant and the second quadrant , respectively. Has a plane and
The bottom surface of the separation chamber comprises a curved surface with the side surface side of the separation chamber raised or a continuous surface of the curved surface and the inclined surface to form the bottom surface of the separation chamber.
A cyclone separation device in which the bottom surface of the separation chamber is formed at a position higher than the discharge port and has a downward inclination toward the discharge port . The two planes parallel to the axis of the coordinate plane constitute the side surface of the separation chamber, which is the side surface of the separation chamber, and the top surface of the separation chamber, which is the top surface of the separation chamber.
The cyclone according to claim 1 , wherein the cross section of the surface including the central axis and intersecting with the separation chamber has an increased cross-sectional area toward the top surface of the separation chamber within a range of contact with the side surface of the separation chamber. Separator. The housing has a hexahedral shape and has a hexahedral shape.
A partition plate for partitioning the front side of the housing and the back side of the housing is provided in the housing.
On the back surface side of the housing, on the four side surfaces adjacent to the back surface of the housing, the inflow port that opens from the partition plate to the back surface and communicates with the swirling flow generating means is provided .
The space dividing plate, the bottom surface of the separation chamber, the top surface of the separation chamber, the side surface of the separation chamber, and the discharge port are arranged on the front side of the housing, respectively.
The cyclone separation device according to claim 2 , wherein the front side portion of the inner wall surface of the housing with the partition plate as a boundary is formed by the separation chamber top surface and the separation chamber side surface. It is provided with a discharge promoting surface which is provided so as to project from the lower surface of the housing and is a surface continuous with the bottom surface of the separation chamber, and has a discharge portion having the discharge port at the tip portion.
The cyclone according to any one of claims 1 to 3, wherein in the discharge portion, the discharge promotion surface is inclined toward the lower portion in a direction in which the horizontal cross-sectional area of the discharge portion becomes smaller. Separator.