KR102296235B1 - Thin Disc Stack Centrifugal Oil Mist Separator - Google Patents

Abstract

The present invention relates to a thin disc-type oil mist centrifuge and, more specifically, to a thin disc-type oil mist centrifuge for cleaning crankcase exhaust gas of a power plant and a marine diesel engine. The thin disc-type oil mist centrifuge not only has a unique structure compared to conventional centrifuges, but also considers the safety risks caused by the high-speed rotation of a rotor, improves durability, and has a structure facilitating the separation thereof, thereby being capable of cleaning the disc while performing a function, as well as mending the master disc.

Description

Thin Disc Stack Centrifugal Oil Mist Separator

The present invention relates to a thin disk type oil mist centrifuge.

Specifically, it relates to a thin disc type oil mist centrifuge for cleaning crankcase exhaust gas of power plants and marine diesel engines, which has a unique structure compared to conventional centrifuges and is rotated at high speed by a rotor at the same time. It relates to a thin disk-type oil mist centrifuge configured to consider safety, improve durability, and structurally facilitate separation of the disk as well as maintenance of the disk as well as cleaning of the disk during function.

The thin disc-stack centrifugal oil mist separator removes impurities such as oil mist, soot, and particulates (PM) contained in the gas exhausted through the crankcase of a diesel engine. It is a device that cleans the exhaust gas discharged to the atmosphere by separating and removing it using the centrifugal force of the high-speed rotating body and the sedimentation area of the disc, and it is applied to diesel engines for power plants and marine engines.

The centrifugal separator utilizes the centrifugal force of the rotating body to maximize the sedimentation force of crank exhaust gas and foreign substances having a relatively high density such as oil mist, soot, and moisture contained therein.

The sedimentation speed of the particles to be removed is increased by using centrifugal force that is thousands of times greater than the gravity, and the separation effect is maximized by shortening the sedimentation distance and increasing the sedimentation area through the disc stacked in multiple layers in the rotating body.

This thin disc type oil mist centrifuge is a radically new approach to the conventional filter method of cleaning the exhaust gas from the engine crankcase, which uses centrifugal technology to remove oil mist and other particles and protects the environment. .

As a related technology, there is disclosed an oil vapor oil separator having an oil filter function of Korean Patent No. 10-1470676.

The above technology relates to an oil vapor oil separator having an oil filter function, wherein an oil filter device for separating foreign substances from oil and an oil vapor oil separator device for separating oil from oil vapor are integrated into one configuration, and a separate power source is provided. By allowing it to be driven by oil circulating without it, it is possible to realize miniaturization in size with a simple structure.

In addition, it is possible to provide convenience for maintenance and to solve difficulties in securing space when mounted on an internal combustion engine. At the same time, by collecting the lubricating oil particles contained in the oil vapor and re-injecting it into the internal combustion engine, it is possible to minimize oil consumption in the internal combustion engine and to prevent oil contamination by the oil vapor.

Korean Patent Publication No. 10-1470676 (Registered on Dec. 2, 2014) US Registered Patent Publication No. 6925993 (Registered on Aug. 9, 2005) US Registered Patent Publication No. 7235177 (registered on June 26, 2007) US Registered Patent Publication No. 8714132 (registered on May 6, 2014)

An object of the present invention is to provide a thin disk type oil mist centrifugal separator for cleaning crankcase exhaust gas of power plants and marine diesel engines. It is possible to provide a thin disc type oil mist centrifuge, which is configured to consider the safety by rotation, improve durability, and structurally easy separation to repair the disc disc as well as to clean the disc during function.

A thin disk type oil mist centrifugal separator according to the present invention was invented to achieve the above object, comprising: a separation region supported by a frame and an elastic mount; a rotor generating a rotational force at an upper side of the separation region; an inlet for introducing crank gas from a lower side of the separation region and transferring it to the separation region; In the thin disk type oil mist centrifuge configured to include; an outlet for discharging the clean gas purified by the separation area,

The inlet and outlet are configured to be connected,

By providing a bypass valve on one side connected to the oil mist centrifuge, the amount of re-introduced into the inlet can be adjusted to efficiently control the amount of clean gas discharged through the oil mist centrifuge to separate the gas containing less purified foreign substances. characterized by regulating.

In this case, the separation area is

a top cover coupled to the lower side of the rotor; an outlet cover coupled to a lower side of the top cover; a cover coupled from a lower side of the outlet cover; The outer shape is constituted by the lower flange coupled to the lower side of the cover,

a disk cover to which the rotation shaft of the rotor is coupled therein; a main vane coupled to the disk cover; a disk supporter coupled to the lower side of the main vane; and a plurality of disks positioned between the disk cover and the disk supporter and fitted to the outside of the main vane.

According to the thin disk type oil mist centrifuge according to the present invention,

First, it has a unique structure compared to the centrifuge that has been dependent on conventional imports, and at the same time it can have safety and durability due to high-speed rotation by the rotor,

Second, by having a structure that is easy to separate and assemble, it has the advantage of easy maintenance and repair as well as cleaning of the disk.

1 and 2 show the overall shape of the thin disk type oil mist centrifuge according to the present invention.
3 is a cross-sectional view showing the separation region of the thin disk type oil mist centrifuge according to the present invention.
FIG. 4 shows an outlet cover in the configuration of the separation area of FIG. 3 .
FIG. 5 shows a cover in the configuration of the separation region of FIG. 3 .
FIG. 6 shows a lower flange in the configuration of the separation region of FIG. 3 .
FIG. 7 shows a disk cover in the configuration of the separation area of FIG. 3 .
FIG. 8 shows a disk in the configuration of the divided area of FIG. 3 .
FIG. 8A shows the disk of FIG. 8 as viewed from above.
FIG. 9 shows a disk supporter in the configuration of the divided area of FIG. 3 .
FIG. 9A is a view showing the disk supporter of FIG. 9 as viewed from the lower side.
FIG. 10 shows the main vane in the configuration of the separation region of FIG. 3 .
Figure 10a shows the main vane of Figure 10 viewed from the top.

The terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concepts of the terms to best describe his invention. Based on the principle, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and examples.

Hereinafter, prior to the description with reference to the drawings, it is not shown or specifically described for the known configurations that are not necessary to reveal the gist of the present invention, that is, those skilled in the art that can be added obviously by those skilled in the art. reveal the sound

The present invention relates to a thin disk type oil mist centrifuge.

Specifically, it relates to a thin disc type oil mist centrifuge for cleaning crankcase exhaust gas of power plants and marine diesel engines, which has a unique structure compared to conventional centrifuges and is rotated at high speed by a rotor at the same time. It relates to a thin disk-type oil mist centrifuge configured to consider safety, improve durability, and structurally facilitate separation of the disk as well as maintenance of the disk as well as cleaning of the disk during function.

The thin disk type oil mist centrifuge according to the present invention is configured as shown in FIG. 1 of the accompanying drawings.

1 and 2 show the overall shape of the thin disk type oil mist centrifuge according to the present invention.

As shown in the accompanying drawings, a separation region supported by the frame and the elastic mount; a rotor generating a rotational force at an upper side of the separation region; an inlet for introducing crank gas from a lower side of the separation region and transferring it to the separation region; and an outlet for discharging the clean gas purified by the separation area.

In this case, the frame may be configured in various forms, for example, as shown in FIGS. 1 and 2 .

In addition, it is configured to connect the inlet and the outlet, a bypass valve may be configured in a part of the pipe connecting the inlet and the outlet.

The bypass valve controls the amount re-introduced into the inlet to separate foreign substances and air having a greater load than air due to less separation of foreign substances from the clean gas discharged through the oil mist centrifugal separator.

In this case, the separation region is shown in FIG. 3 of the accompanying drawings.

3 is a cross-sectional view showing the separation region of the thin disk type oil mist centrifuge according to the present invention.

The separation area according to FIG. 3 of the accompanying drawings includes a top cover coupled to the lower side of the rotor; an outlet cover coupled to a lower side of the top cover; a cover coupled from a lower side of the outlet cover; The outer shape is constituted by the lower flange coupled to the lower side of the cover,

a disk cover to which the rotation shaft of the rotor is coupled therein; a main vane coupled to the disk cover; a disk supporter coupled to the lower side of the main vane; A plurality of disks positioned between the disk cover and the disk supporter and fitted to the outside of the main vane and coupled thereto.

The outlet cover may refer to FIG. 4 of the accompanying drawings.

FIG. 4 shows an outlet cover in the configuration of the separation area of FIG. 3 .

The outlet cover according to FIG. 4 of the accompanying drawings, which is coupled using a bolt to the top cover coupled to the lower side of the rotor, is divided into an upper body and a lower body, the upper body is coupled to the top cover, and the lower body is located on the lower side of the upper body It is configured to have an expanded size.

In addition, an outlet connection portion is formed on one side of the upper body, and the outlet connection portion is configured to be connected to the inside of the upper body. The outlet connection part is coupled to the gas outlet of FIGS. 1 and 2 using a rubber hose and a band.

A cover according to FIG. 5 of the accompanying drawings is coupled to the lower side of the lower body of the outlet cover.

FIG. 5 shows a cover in the configuration of the separation region of FIG. 3 .

The cover has a predetermined cylindrical shape as shown in FIG. 5 of the accompanying drawings, and is configured so that the upper part is expanded, the expanded area of the upper part is coupled to the outlet cover, and the lower area uses a bolt to the lower flange to be described later. to be combined

At this time, a through passage is formed in the lower part of the cover and one side of the lower outlet cover, which functions to discharge foreign substances centrifuged by the disk inside the cover.

The lower flange may refer to FIG. 6 of the accompanying drawings.

FIG. 6 shows a lower flange in the configuration of the separation region of FIG. 3 .

The lower flange according to FIG. 6 of the accompanying drawings includes a base for being coupled to the lower side of the cover; a circular jaw that is formed higher on the upper surface of the base to enable stable fixing of the cover; a cylindrical shape penetrating the base in the height direction and a hollow inside of the communication part; A plurality of ribs extending from the outside of the communication part in the direction of the upper surface of the base and formed on the upper surface of the circular jaw and formed to be curved at a predetermined angle; is configured to include.

This lower flange may be coupled to the cover using a bolt on the lower surface of the base.

At this time, the rotor shaft, which transmits the rotational force of the rotor, passes through the through hole formed in the top cover and is located inside the outlet cover, and the rotor shaft is inserted into the disk cover and coupled thereto.

The disk cover may refer to FIG. 7 of the accompanying drawings.

FIG. 7 shows a disk cover in the configuration of the separation area of FIG. 3 .

This disk cover includes a shaft coupling area for coupling the rotor shaft,

As shown in FIG. 3 of the accompanying drawings, the joint bar is positioned inside the cover, and the upper portion of the joint bar penetrates through the shaft coupling region of the disk cover to be coupled to the rotor shaft.

This joint bar extends to be exposed from the lower side of the main vane through the shaft of the main vane to be described later, and is coupled to the exposed lower side by using a nut, a washer, and an O-ring.

A main vane is located under the disk cover, and the main vane may refer to FIG. 10 of the accompanying drawings.

FIG. 10 shows the main vane in the configuration of the separation region of FIG. 3 , and FIG. 10A shows the main vane of FIG. 10 as viewed from the upper side.

The main vane according to the accompanying drawings is formed in the longitudinal direction, the shaft having a through hole through which the joint bar passes; a plurality of vanes curved while having a predetermined curved direction on the outside of the shaft; and a coupling end having bolt holes formed at both ends of the vane to a predetermined depth.

The bolt holes of the coupling end are formed on both the upper and lower sides, and are coupled to the disk cover at the upper side and the disk supporter at the lower side using bolts.

A plurality of disks are coupled to the outside of the main vane, and the disks are configured as shown in FIG. 8 of the accompanying drawings.

FIG. 8 shows the disk in the configuration of the separation area of FIG. 3 , and FIG. 8A shows the disk of FIG. 8 as viewed from above.

The disk according to the accompanying drawings is configured in the shape of a lampshade, and is configured to have an empty interior. In this case, a plurality of curved projections are formed at regular intervals on the upper surface of the disk, and at least one of the plurality of curved projections is extended from the upper surface, but may have the shape of a concave groove.

When the internal configuration of the separation region is rotated by the rotor by the curved protrusion, a vortex may be generated on the upper surface of the disk, and thus centrifugal separation of the crank gas may be performed more efficiently.

In addition, the reason why the plurality of extended upper surfaces of the curved protrusion are concave is to be inserted and fixed to the coupling end of the above-described main vane to enable stable fixing.

As described above, when a plurality of disks are coupled through the main vane, the disk supporter is coupled to the lower side thereof.

The disk supporter may refer to FIG. 9 of the accompanying drawings.

FIG. 9 shows the disk supporter in the configuration of the divided area of FIG. 3 , and FIG. 9A shows the disk supporter of FIG. 9 as viewed from the lower side.

The disk supporter according to the accompanying drawings has a shape corresponding to the hollow inside of the disk, so that when positioned at the bottom of the disk, it can stably support the disk at the bottom.

Such a disk supporter is coupled using a bolt hole and a bolt formed in the lower portion of the main vane described above. To this end, the disk supporter may include a main vane coupling hole for coupling with the bolt hole of the main vane.

Accordingly, when the rotor transmits the rotational force, the disk cover, the main vane, the disk supporter and the disk rotate.

In other words, the crank gas introduced into the inlet is transferred through the communication part of the lower flange, and the transferred crank gas rises along the main vane in the separation area, and is transferred to the space between the disks by centrifugal force to separate foreign substances. .

And the separated foreign material is discharged to the outside of the cover while falling along the disk by the load.

Then, the air from which the foreign material is separated is discharged through the outlet connection part of the outlet cover.

In addition, according to FIG. 9A of the accompanying drawings, a plurality of balance holes formed along the circumferential direction are formed on the lower surface of the disk supporter.

A balance member including a bolt or a rubber rod having a predetermined load may be inserted into the balance hole and coupled thereto. In this case, the rotational balance for rotation can be adjusted.

What has been described above using the drawings is to describe only the main points of the present invention, and as many designs are possible within the technical scope, it is obvious that the present invention is not limited to the configuration of the drawings.

Claims (4)

a separation region supported by the frame and the elastic mount; a rotor generating a rotational force at an upper side of the separation region; an inlet for introducing crank gas from a lower side of the separation region and transferring it to the separation region; In the thin disc type oil mist centrifuge configured to include; an outlet for discharging the clean gas purified by the separation area,
The inlet and outlet are configured to be connected,
By providing a bypass valve in the connected part, the treatment flow rate is efficiently controlled by controlling the amount re-introduced into the inlet so that the clean gas discharged through the outlet can separate again the gas containing less purified foreign substances;
The separation area is
a top cover coupled to the lower side of the rotor; an outlet cover coupled to a lower side of the top cover; a cover coupled from a lower side of the outlet cover; The outer shape is constituted by the lower flange coupled to the lower side of the cover,
a disk cover to which the rotation shaft of the rotor is coupled therein; a main vane coupled to the disk cover; a disk supporter coupled to the lower side of the main vane; A thin disc type oil mist centrifuge, characterized in that it comprises; a plurality of discs positioned between the disc cover and the disc supporter and fitted to the outside of the main vane.
The method according to claim 1,
The outlet cover is
It is divided into an upper body and a lower body, the upper body is coupled to the top cover, the lower body is configured to have an expanded size on the lower side of the upper body, and an outlet connection part coupled to the outlet is formed on one side of the upper body,
A cover is coupled to the lower side of the lower body of the outlet cover, and a passage through which foreign substances separated from the crank gas can be discharged is formed on one side of the cover,
A lower flange is coupled to the lower side of the cover,
The lower flange,
a base coupled to the lower side of the cover; a circular jaw that is formed higher on the upper surface of the base to enable stable fixing of the cover; a cylindrical shape penetrating the base in the height direction and a hollow inside of the communication part; A thin disk type oil mist centrifuge, characterized in that it comprises; a plurality of ribs extending from the outside of the communication part in the direction of the upper surface of the base and formed on the upper surface of the circular jaw to be curved at a predetermined angle.
The method according to claim 1,
The rotor shaft of the rotor is coupled to the disk cover to transmit rotational force,
The disk cover includes a shaft coupling area for coupling the rotor shaft,
A joint bar having a predetermined length is coupled to the rotor shaft coupled to the shaft coupling region,
A main vane is coupled to the joint bar,
The main vane is
a shaft formed in the longitudinal direction and having a through hole through which the joint bar passes; a plurality of vanes curved while having a predetermined curved direction on the outside of the shaft; Doedoe comprising a; a coupling end formed with a bolt hole to a predetermined depth at the end of the vane;
It is combined with the disk cover from the upper side using a bolt hole, and is combined with the disk support from the lower side,
A plurality of disks are provided between the disk cover and the disk support.
A plurality of curved projections are formed on the upper surface of the disk at regular intervals so as to protrude, and at least one of the plurality of curved projections is extended from the upper surface to have a concave groove shape, so that it is inserted into the coupling end of the main vane to be combined,
The disk support is
By having a shape corresponding to the hollow inside of the disk, when it is located at the bottom of the disk, it is possible to stably support the disk at the bottom of the disk, and includes a main vane coupling hole for coupling with the bolt hole of the main vane. ,
The disk support includes a plurality of balance holes formed along the circumferential direction on its lower surface, and a balance member including a bolt is coupled inside the balance hole, characterized in that the rotational balance for rotation can be adjusted. Disc type oil mist centrifuge.

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