JP2546621Y2 - Mist collector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mist collector for collecting and removing mist of water-soluble coolant and cutting oil generated from various machine tools in a factory or the like or cleaning liquid generated from a washing machine.

[0002]

2. Description of the Related Art In a factory building, air is cleaned by a mist collector so as to keep a good working environment and prevent air contaminated to the outside from leaking through a ventilation duct. Conventionally, mist collectors include a centrifugal separator, a separator using a filter, a separator using an air impingement plate, and the like. Among them, the centrifuge rotates the contaminated air at high speed, and the mist adheres to the inner peripheral wall by centrifugal force.
However, since the droplets are rotated at a high speed, the droplets are easily scattered again and the efficiency is low. A mist separator using a filter has high separation performance by appropriately selecting a filter, but has fine solid particles (fume).
However, the filter is easily clogged by adhering to the filter, the maintenance involved in cleaning and replacing the filter is complicated, and the running cost is high. The separator using the air impingement plate utilizes the phenomenon that mist containing air is sent into a curved passage and forced to pass through, and the mist is separated when the air collides with the passage wall. The effect is small when fine solid particles are contained in the air that has been removed, but when it contains a large amount of mist, solids and particles can be removed together with the mist, and there is no danger of clogging, so maintenance-free There is an advantage that it can be used for a long time.

For example, FIGS. 3 and 4 show a mist collector using a collision plate disclosed in Japanese Utility Model Laid-Open No. 62-106614. FIG. 3 is a cross-sectional side view, in which a bottom plate 4 having an opening 7 is passed over weir plates 3A and 3B standing on the frame 2. A bent collision plate 5 is erected on the bottom plate 4. FIG. 4 is a view taken in the direction of the arrow II in FIG. 3, and the collision plate 5 is made of a bent plate material, a plurality of collision plates 5 are arranged side by side, and an air flow path is provided between each of them. Air flows as indicated by arrows A and a. The mist (moisture) contained in the air bends between the collision plates 5 as shown by the arrow a and collides with the collision plate 5 by the forced air to be liquefied, drops, drops through the opening 7 and passes through the chamber 6 Accumulate in In addition, weir board 3A, 3B
Acts as a dam against the air flow to prevent the water drops on the bottom plate 4 from being scattered again by the air flow.

[0004]

However, the conventional mist collector using the above-mentioned collision plate employs a means for providing a weir to prevent water droplets dropped on the bottom plate from re-scattering. The dripping water droplets are inevitably exposed to the air stream and re-scattered. In addition, since the collision plates are erected in parallel, the air flows relatively smoothly, so that sufficient collision does not occur and mist is not sufficiently collected.

[0005] The present invention has been made to solve the above-mentioned problem, and has an impingement plate against which air containing mist collides violently. It is an object of the present invention to provide a mist collector that does not go outside even if water droplets generated on a plate are re-scattered by air.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a mist collector for collecting and removing mist by colliding mist in air with a collision plate. , The other end is provided with an air outlet, and the inside of the mist collector body is divided into a plurality of communicating chambers by alternately arranged hanging plates and rising plates so that air flows alternately in a downward flow and an upward flow. Make up,
In a room in which air flows downward, an angle material having a substantially V-shaped cross section and a drop hole at the bottom of the V-shape, and the longitudinal direction of the angle material having the V-shaped bottom facing downward and the angle material is gently inclined. The hanging plate is bent at the folding portion toward the chamber through which air flows downward to form a throttle, and the uppermost stage of the angle material and the tank at the lower part of the mist collector body are provided. A mat made of a continuous foam sponge is placed on the mesh plate above the space to be a part.

[0007]

According to the above construction, the direction of the air containing the mist changes alternately with the upward flow and the downward flow by the hanging plate and the rising plate. Since a large number of angle members having a V-shaped cross section are arranged in a downward flow portion, the air violently collides with the angle material and aggregates mist on the surface of the angle material. The agglomerated mist drops as water droplets from the hole at the bottom of the V-shape of the angle material, but at this time, the flow of air is downward, so that the water droplets are carried to the bottom of the mist collector body, and the air flows upward therefrom. However, the water drops do not fall down due to the inertial force and re-scatter. When a continuous foamed sponge mat is provided on the top of the angle material, the mist is uniformly dispersed and flows toward the angle material, and when provided on the bottom of the mist collector body, water droplets carried by the flow of air are absorbed and bounce off. Because there is no, the efficiency is further improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a mist collector according to the present invention.
5 is provided with an air discharge port 16 at the other end, and air is forcibly sent in from the air inlet port 15 by a rolling fan (not shown) or the like.

The interior of the mist collector body 10 is divided into four chambers by hanging plates 17 and 18 and a rising plate 19.
Air is supplied to the lower end of the hanging plate 17, the upper end of the rising plate 19, the hanging plate 1
8 and bends at the lower end and flows as indicated by the arrow. Hanging plate 17,
18 has folding portions 17a and 18a, respectively, so that the air flow is narrowed below, and is narrowed down.
Therefore, the air is narrowed near the lower ends of the hanging plates 17 and 18, and the downward flow velocity is increased to accelerate the water droplets so as to easily travel straight down. This makes it difficult for the re-scattered water drops to rise. In the room in which air flows downward, a number of angle members 13 are provided slightly inclined in the longitudinal direction.

FIG. 2 is a sectional view taken along the line AA in FIG.
The angle member 13 has a hole 13a at the bottom of the V-shape, and serves as a drop hole for water droplets. As shown by the arrow in FIG. 2, the air collides with the shoulder portion of the angle member 13, and the direction changes drastically, the mist aggregates, and water drops are collected at the V-shaped bottom of the angle member 13. Then, it flows along the gentle inclination of the angle member 13 in the longitudinal direction, and eventually falls from the hole 13a.

In this embodiment, two hanging plates 17, 18
Although four chambers are formed by one rising plate 19, more hanging plates and rising plates may be provided. An open-cell sponge mat 11 is provided at the top of the angle member 13 so that mist is evenly distributed to the angle member 13. A mesh plate 20 composed of a wire mesh or a plate having a large number of holes is provided above a space 21 serving as a tank portion below the mist collector main body 10, and an open-cell sponge mat 14 is further provided thereon. To prevent re-scattering due to rebound. The water accumulated in the space 21 is drained from the drain port 22 as appropriate.

[0012]

As described above, according to the present invention, since the air containing the mist violently collides with the collision plate made of the V-shaped angle material, the mist separation effect is high. In addition, since the collision plate is provided at the position where air flows downward,
Since the action of gravity and the action of wind act on water droplets formed by the aggregation of mist in the same direction, it is difficult to re-scatter,
Furthermore, since the lower end of the chamber in which the air flows downward is narrowed, the flow velocity of the air increases, and when the air flows upside down, the flow velocity of the air decreases. As a result, the water droplets are reliably collected in the lower tank portion, and the scattered water droplets are unlikely to rise. In addition, the mist is distributed by the mat at the top of the angle material without biasing to a part of the angle material, and the water droplets are absorbed and absorbed by the mat on the tank portion under the mist collector, so they do not rebound and prevent re-scattering I do.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the mist collector of the present invention.

FIG. 2 is a sectional view of an angle member.

FIG. 3 is a side view of a conventional mist collector.

FIG. 4 is a plan view of a conventional mist collector.

[Explanation of symbols]

 Reference Signs List 10 Mist collector body 11, 14 Mat 13 Angle material 15 Air inlet 16 Air outlet 17, 18 Hanging plate 19 Rise plate 20 Mesh plate

Claims (3)

(57) [Scope of request for utility model registration] 1. A mist collector for collecting and removing mist by causing mist in air to collide with a collision plate. An air inlet is provided at one end of a mist collector body, and an air outlet is provided at the other end. The interior is divided into a plurality of communicating chambers by alternately arranged hanging plates and rising plates, so that air flows alternately with a downward flow and an upward flow. A plurality of angle members having a V-shape and having a drop hole at the bottom of the V-shape are provided such that the bottom of the V-shape is downward and the longitudinal direction of the angle material is gently inclined to form an impact plate. A characteristic mist collector. 2. The mist collector according to claim 1, wherein the hanging plate is bent at a folding portion toward a chamber through which air flows downward to form a throttle. 3. A mesh plate in the uppermost space of the angle material and in the upper space of the space which becomes the tank portion below the mist collector body,
3. The mist collector according to claim 1, wherein a mat made of a continuous foamed sponge is placed on each of the mist collectors.