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JP-2026075403-A - Mist collection filter and mist collection device

JP2026075403AJP 2026075403 AJP2026075403 AJP 2026075403AJP-2026075403-A

Abstract

[Problem] To reduce the dripping of oil, water, etc. from the resistance plate. [Solution] The mist collection filter comprises a rotating filter 31a having holes 31a1 through which gas passes, and a resistance plate 31b provided on the side of the rotating filter 31a opposite to the suction side, which acts as resistance to the gas passing through the holes 31a1, and the rotating filter 31a and the resistance plate 31b are mounted on a drive rotating shaft and rotated. [Selection Diagram] Figure 1

Inventors

  • 菱谷 康平

Assignees

  • 富士工業株式会社

Dates

Publication Date
20260508
Application Date
20241022

Claims (11)

  1. The device comprises a rotating filter having holes for passing gas, and a resistance plate provided on the side of the rotating filter opposite to the suction side, which acts as resistance to the gas passing through the holes. A mist collection filter characterized in that the rotating filter and the resistance plate are mounted on a drive rotating shaft and rotated.
  2. The mist collection filter according to claim 1, characterized in that the rotating filter and the resistance plate rotate as a single unit.
  3. The mist collection filter according to claim 1, characterized in that the rotating filter and the resistance plate are detachably connected.
  4. The mist collection filter according to claim 1, characterized in that a gap is provided between the rotating filter and the resistance plate.
  5. The mist collection filter according to claim 4, characterized in that the gap is maintained at a substantially constant length in the radial direction.
  6. The mist collection filter according to claim 4, characterized in that the gap has a portion that increases radially outward.
  7. The mist collection filter according to claim 1, characterized in that the hole has a through-hole that does not face the resistance plate, and a through-hole that faces the resistance plate on the side of the rotating filter center that is closer to the through-hole.
  8. The mist collection filter according to claim 1, characterized in that the surface of the resistance plate facing the rotating filter is formed smoothly.
  9. The mist collection filter according to claim 1, characterized in that the resistance plate has a convex portion and/or a concave portion on the surface facing the rotating filter.
  10. The mist collection filter according to claim 1, characterized in that the resistance plate has a curved portion at its outer peripheral end that is bent in a predetermined direction.
  11. A mist collection device according to any one of claims 1 to 10, characterized by comprising the aforementioned mist collection filter.

Description

This invention relates to a mist collection filter for removing oil from oil fumes and the like, and to a mist collection device equipped with this mist collection filter. Conventionally, this type of invention includes a range hood comprising a rotating filter having holes and an airflow-blocking member fixed downstream of the rotating filter to create airflow resistance, wherein the airflow-blocking member supports a motor that drives the rotating filter (see, for example, Patent Document 1). This range hood increases the airflow resistance of the holes on the rotation center side of the rotating filter by using an air flow blocking member, thereby reducing the airflow velocity through the holes and suppressing noise during operation. Japanese Patent Publication No. 2021-120599 This is a side view showing an example of a mist collection filter according to the present invention.This is a top view of the mist collection filter.This is a view of the mist collection filter from below, with a close-up of the key parts.This is a disassembled perspective view of the mist collection filter.This is a perspective view of an example of a mist collection device equipped with the aforementioned mist collection filter, viewed from the upper right.This is a perspective view of the mist collection device from the lower right side.This is a perspective view of the mist collection device, with the upper half of the housing cut out to reveal the internal structure.This is a perspective view of the mist collection device, with the upper half of the entire device cut out to reveal the gas flow path.This is a longitudinal cross-sectional view of the main part of the mist collection device, with the front half cut out to reveal the internal structure.This is a magnified vertical cross-sectional perspective view of the main components, including the mist collection filter and oil receiver.This is a magnified vertical cross-sectional view of the main components, such as the mist collection filter and oil receptacle, with the oil discharge path indicated by a dashed line.This is a perspective view of the mist collection device, taken from the lower right, showing the device with the rectifier plate removed.This is a perspective view of the mist collection device, taken from the lower right, showing the components from the rectifier plate to the mist collection filter removed.This is a side view showing another example of the mist collection filter according to the present invention, with the main part cut out to show a cross-section.This is a side view showing another example of the mist collection filter according to the present invention, with the main part cut out to show a cross-section.This is an enlarged side view of a key part showing another example of the mist collection filter according to the present invention, with the resistance plate partially cut out to show a cross-section.This is a side view showing another example of the mist collection filter according to the present invention. Next, embodiments of the present invention will be described in detail with reference to the drawings. <About the mist collection filter> Figures 1 to 4 show an example of a mist collection filter according to the present invention. This mist collection filter 31 comprises a rotating filter 31a having holes 31a1 through which gas passes, a resistance plate 31b provided on the side of the rotating filter 31a opposite to the suction side to act as resistance to the gas passing through the holes 31a1, and a connecting hub 31c and a connecting sleeve 31d that connect the rotating filter 31a and the resistance plate 31b at the center, and is configured as a single, disassembled unit. This mist collection filter 31 is mounted on the drive rotating shaft 33a of the mist collection device 1, which will be described later, and both the rotating filter 31a and the resistance plate 31b rotate simultaneously as a single unit. The rotating filter 31a is constructed in a roughly circular, plate-like shape. This rotating filter 31a has numerous holes 31a1 extending from the periphery towards the center. Each hole 31a1 is an elongated hole that inclins in the direction of rotation (clockwise in Figure 3) toward the center of the rotating filter 31a. Multiple holes 31a1 are provided at predetermined intervals in the circumferential direction of the rotating filter 31a, and furthermore, multiple layers (four layers in the illustrated example) are provided at predetermined intervals in the radial direction of the rotating filter 31a. As the rotating filter 31a rotates, each hole 31a1 moves at high speed in the circumferential direction of the rotating filter 31a. As a result, oil, moisture, and other substances contained in the gas attempting to pass through each hole 31a1 come into contact with the inner edge of the hole 31a1 and are blown away. The resistance plate 31b is formed in the shape of a circular flat plate and is provided with a substantially c