JPS6125845Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an impingement separator that separates droplets from high-pressure gas containing droplets, which is used in oil-filled compressors and the like.

(Prior art) Conventionally, as this type of separator, for example,
There is one disclosed in Publication No. -58169. As shown in FIG. 4, this separator has inside the main body 1,
A first porous member 2 and a second porous member 3 are arranged with a predetermined distance maintained therebetween, and a tapered cylinder 5 is attached to the downstream side of the second porous member 3 with its large diameter end. Further, the lid plate of the main body 1 facing the tapered cylinder 5 serves as a collision plate 6. Further, the collision plate 6 is provided with a guide cylinder 7 that protrudes outward from the tapered cylinder 5, and a gas discharge port 8 is provided at the upper part between the second porous member 3 and the collision plate 6. , separation chambers 10 each having a drain outlet 9 at the bottom are formed. In addition, 4 is the first and second porous members 2,
This is a drain outlet provided at the bottom of the 3-room.

The separator having the above configuration includes an air cooler 11 having a large number of cooling pipes 12 on the first porous member 2 side.
is connected to the end of the air cooler 11 to separate the droplets from the gas containing the droplets from the air cooler 11.

That is, while the gas containing droplets passes through the first and second porous members 2 and 3, the droplets adhere to these porous members 2 and 3, are separated, and are discharged from the drain outlet 4. On the other hand, the gas having some droplets that has passed through the second porous member 3 is accelerated by the tapered cylinder 5 and collides with the collision plate 6 .

Due to this collision, a small amount of droplets in the gas adhere to the collision plate 6 and then fall, or after being rebound from the collision plate 6, they are separated in the separation chamber 10 and discharged from the drain outlet 9. Note that after the gas is repelled from the collision plate 6, it passes through the separation chamber 10 to the gas discharge port 8.
It is sent to a predetermined location.

(Problems to be solved by the invention) However, in the collision type separator,
The gas is repelled by the collision with the collision plate 6, and due to this repelled air flow, some of the droplets collected by the collision plate 6 or the droplets caused by the collision are re-splattered and discharged from the gas discharge port 8 together with the gas. This has the disadvantage that the droplet separation effect is reduced.

In order to solve this problem, the speed of the gas passing through the tapered tube 5 may be reduced, but this would create a new problem of increasing the size of the separator.

The object of the present invention is to provide a small-sized collision type separator with good separation efficiency, which does not cause droplet re-scattering even when the gas flow rate is increased and can separate even minute droplets.

(Means for solving the problem) In order to solve the above problem, the collision type separator according to the present invention includes a tapered cylinder that contracts in the direction of flow of gas containing droplets, a gas discharge port, and a drain discharge port. a collision member having some air permeability, which is provided facing the tapered cylinder at a predetermined distance, and a drain discharge port on the back of the collision member, and a discharge port connected to the gas discharge port. It consists of a small room that communicates with a small room.

(Example) Next, an example of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a collision type separator according to the present invention, which generally includes a main body 13 provided with a separation chamber 15 having a tapered tube 14, a collision member 16, and a small chamber 17. The separation chamber 15 is connected to the air cooler 11 as in the conventional one, and has a tapered tube 14 with a large diameter end attached to the connection part, a gas discharge port 18 in the upper part, and a drain outlet in the lower part. It has an outlet 19.

The collision member 16 is a wire mesh demister or the like having some air permeability, and is attached to an opening 21 a provided in the cover plate 21 facing the small end of the tapered cylinder 14 of the separation chamber 15 .

The small chamber 17 has a collision member 16 provided in the separation chamber 15.
The upper part communicates with the gas outlet 18 of the separation chamber 15 through a pressure equalization pipe 22, and the drain outlet 23 provided at the lower end merges with the drain outlet 19 and connects to the drain trap 24. It's reached. As is clear from FIG. 2, 20 is a baffle plate provided on the cover plate 21 so as to cover the upper half of the gap between the opening 21a and the tapered cylinder 14.

In the collision type separator having the above configuration, the gas containing droplets from the air cooler 11 flows through the tapered cylinder 1.
4 and is accelerated, reaching the collision member 16. In this case, the collision member 16 has some ventilation, and the small chamber 17 behind it has a pressure equalizing pipe 22.
Since the pressure is the same as that of the gas discharge port 18 of the separation chamber 15, a part of the gas passes through the collision member 16. During this passage, droplets contained in the gas are captured by contact with the collision member 16 and separated inside the collision member 16 . On the other hand, most of the gas is repelled by collision with the collision member 16;
At this time, the droplet is captured on the surface of the collision member 16.

Furthermore, as described above, some of the gas passes through the collision member 16 after the collision, so the repulsion velocity is reduced from the velocity before the collision, and as a result, the droplets separated on the surface of the collision member 16 are not re-splattered. Moreover, droplets caused by the impact are absorbed and captured inside the collision member 16. The repelled gas is diffused into the separation chamber 15, where droplets are separated by natural sedimentation and are discharged from the gas discharge port 18.

In addition, since the flow velocity of the gas flowing out into the small chamber 17 is relaxed, droplets are separated within the small chamber 17 due to collision with the lid plate of the small chamber 17 or natural sedimentation.
While the collision member 1 is discharged through the pressure equalization pipe 10
The droplets captured by the droplet 6 flow through the collision member 16, become large droplets, drop into the small chamber 17, and drain into the drain outlet 23.
It will be discharged from

In addition, the baffle plate 20 prevents the repelled gas from directly reaching the discharge port 18 after colliding with the collision member 16, and also serves to separate the droplets by collision to ensure sufficient separation of the droplets. It is something.

FIG. 3 shows another embodiment of the collision type separator according to the present invention, in which the separation chamber 15 and the small chamber 17 are connected to the pressure equalization port 2.
6, which form the main body 25 as one and the same container. In this separator, the pressure equalizing pipe 22 in the above embodiment is
A pressure equalizing port 26 corresponding to that shown in FIG.

(Effects of the invention) As is clear from the above explanation, the present invention uses a member with some air permeability as the collision member, so it has the effect of being an impact plate and the original air permeability member (for example, In addition to the inherent effects (demisters, filters, etc.), synergistic effects occur due to these.

In other words, in addition to the droplet separation effect due to collision on the collision member surface and the filter effect that captures droplets from the gas penetrating the collision member, after the collision, some gas passes through the collision member and is repelled. As a result of the gas velocity being reduced, re-entrainment of separated droplets on the surface of the collision member does not occur, and
Droplets caused by impact are absorbed and captured inside the collision member, and minute droplets are captured inside the collision member by riding on the airflow passing through the collision member, which has the effect of improving separation efficiency. ing.

Furthermore, due to the synergistic effect, the collision speed can be made higher than that of conventional collision type separators, so there is also the advantage that the device can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of a collision type separator according to the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a collision type separator according to the present invention. A vertical cross-sectional view showing another embodiment of the separator, FIG. 4 is a vertical cross-sectional view of a conventional collision type separator, and in each drawing,
Solid arrows indicate the flow of droplet-containing gas or droplet-separated gas, and dotted arrows indicate the flow of droplet drain. 13...Main body, 14...Tapered tube, 15...Separation chamber, 16...Collision member having some air permeability,
17...Small chamber, 18...Gas discharge port, 19...Drain discharge port, 22...Pressure equalization pipe, 23...Drain discharge port, 25...Main body, 26...Pressure equalization port.

Claims (1)

[Claims for Utility Model Registration] (1) A separation chamber that is equipped with a tapered cylinder that shrinks in the direction of flow of gas containing droplets, a gas discharge port, and a drain discharge port, and that faces the tapered cylinder at a predetermined distance. A collision type separator comprising: a collision member having some air permeability; and a small chamber behind the collision member having a drain outlet and communicating with the gas discharge outlet. . (2) The collision type separator according to claim 1, wherein the collision member is a wire mesh demister.