JP2004066162A - Oil mist removing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil mist removing apparatus having a simple structure, requiring little maintenance, and removing oil in gas, water and metal dust in an atmosphere wherein oil, water and metal dust are floated in a fine state. <P>SOLUTION: The apparatus has a main body with a cylindrical inner wall surface having the axial center in the vertical direction, an induction pipe for feeding gas containing oil, water and metal dust in the nearly horizontal direction not crossing the axial center, an exhaust pipe for exhausting the gas in the lower center inside the main body, bypass wherein the inside part of the cylinder from the induction pipe to the exhaust pipe is partitioned into a labyrinth form by partition boards, and oil/water transportation pipes for transporting oil and water trapped over the bypass to the lower part of the main body. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an oil mist removing device for removing oil, moisture, and metal dust in a gas in an atmosphere in which oil, moisture, and metal dust float in a fine state.
[0002]
[Prior art]
In equipment that assembles automobiles and precision equipment while processing such as grinding machines, NC lathes, and charcoal on-line, alkali cleaning, coolant cleaning, etc. are performed. And metal dust will float in a fine state.
[0003]
It was difficult to remove oil, water and metal dust from the gas in which not only oil and water but also metal and metal dust floated, and a large-scale apparatus was required.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide an oil mist removing device which has a simple structure, requires less maintenance, and removes oil, moisture and metal dust in a gas in an atmosphere in which oil, moisture and metal dust float in a fine state. .
[0005]
[Means for Solving the Problems]
An oil mist removal device according to the invention described in claim 1 includes a main body having a cylindrical inner wall surface having a vertical axis.
An inlet pipe for sending a gas containing oil, moisture, and metal dust in a substantially horizontal direction not intersecting with the axis of the main body;
An exhaust pipe for discharging gas in the lower center of the main body,
A bypass flow path in which the inside of the cylinder from the introduction pipe to the exhaust pipe is partitioned into a maze by a partition plate,
An oil / water transfer pipe for transferring oil / water collected in the bypass to a lower portion of the main body.
[0006]
In the oil mist removing device according to the invention described in claim 2, the main body according to claim 1 has a cylindrical inner wall surface,
The inlet pipe tangentially sends gas containing oil, moisture and metal dust to the inner wall surface of the upper part of the cylinder.
[0007]
The oil mist removing device according to the invention described in claim 3 is formed so that the exhaust pipe according to claim 1 or 2 can be pulled upward in the axial direction of the main body,
A detour channel divided into a maze by the partition plate,
A first plate body in which a communication hole from the upper surface side to the lower surface side is formed in the center portion, and which is provided on the inner peripheral wall surface in a plane substantially parallel to a horizontal plane of the main body;
A communication hole from an upper surface side to a lower surface side is formed in all or a part of a peripheral portion along the inner peripheral wall surface, and a second plate body substantially parallel to a horizontal plane of the main body is alternately arranged. Is formed,
The oil / water transfer pipe is a pipe provided from the first plate body and the second plate body to a lower portion of the main body.
[0008]
According to a fourth aspect of the present invention, there is provided an oil mist removing device including a dust separation filter mounted on the upper surface of the first plate and the second plate.
[0009]
According to a fifth aspect of the present invention, in the oil mist removing device, the uppermost first plate body forming the bypass flow path according to the third aspect has an upper surface inclined and provided on the inner peripheral wall surface. Is what you do.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
In the present invention, a main body having a cylindrical inner wall surface having an axial center in an up-down direction, an introduction pipe for feeding gas containing oil, moisture and metal dust in a horizontal direction not intersecting with the axial center of the main body, An exhaust pipe for discharging gas at the center of the inner and lower parts, a bypass flow path in which the inside of the cylinder from the introduction pipe to the exhaust pipe is partitioned into a maze by a partition plate, and oil and water collected in the bypass, Oil and water phase piping for transporting oil, water and metal dust in a gas atmosphere in which oil, moisture and metal dust float in a fine state despite its simple structure. Dust can be removed.
[0011]
That is, in the oil mist removing device of the present invention, the inside of the main body becomes negative pressure by the suction device connected to the exhaust pipe, and the gas containing oil, moisture, and metal dust is sucked from the introduction pipe and does not cross the main body axis. Feed almost horizontally. The sent gas rotates along the inner wall surface of the main body. At that time, heavy particles (that is, metal dust> water particles> oil particles) fall down on the inner wall surface of the main body and below due to centrifugal force. Further, when the gas flows in the following bypass flow path, smaller particles fall, and despite the simple structure, the oil, moisture, and metal dust in the atmosphere in which the fine particles float in a fine state. Oil, moisture and metal dust can be removed.
[0012]
The inner wall surface of the main body of the present invention may be any cylindrical shape, and may be any of a square cylindrical shape and a cylindrical shape. However, the cylindrical shape is preferable because the rotation along the inner wall surface of the main body is smoother. . Therefore, in a preferred embodiment, the main body has a cylindrical inner wall surface, and the inlet pipe tangentially sends gas containing oil, moisture and metal dust to the inner wall surface of the upper portion of the cylinder.
[0013]
The bypass flow path of the present invention may be any as long as it can remove oil, moisture, and metal dust in the gas while passing therethrough. In a preferred embodiment, the exhaust pipe is formed so as to pass upward in the axial direction of the main body. A flow path, a communication hole from an upper surface side to a lower surface side is formed in a center portion, a first plate body provided on the inner peripheral wall surface in a plane substantially parallel to a horizontal plane of the main body, A communication hole from the upper surface side to the lower surface side is formed in all or a part of the peripheral portion along the wall surface, and is formed by alternately arranging a second plate body substantially parallel to a horizontal plane of the main body. Things.
[0014]
That is, since the first plate having the communication hole formed in the center portion and the second plate having the communication hole formed in the peripheral portion are alternately arranged, the gas entering from the introduction pipe may be disposed on the inner wall surface. Moves downward from the central portion of the gas rotating along the first plate through the first plate, and further moves to the periphery along the upper surface of the second plate. During that time, the gas is rotating along the axis of the main body, and there is nothing that hinders the rotational movement. Therefore, when the gas passes through the first plate and the second plate alternately, the gas moves along the axis of the main body. Is spinning. Therefore, oil, moisture, and metal dust, which cannot float in the gas, adhere to the upper surface of each plate and are removed.
[0015]
The oil and water attached to and removed from the upper surfaces of the first plate and the second plate are separated from the first plate and the second plate by the oil and water disposed at the lower part of the main body. It is transferred to the lower part of the main body by the transfer pipe. In addition, the planar shape of the first plate body is the planar shape of the cylindrical inner peripheral wall surface because it is provided inside the inner wall surface. Further, even in the planar shape of the second plate body, since a communication hole from the upper surface side to the lower surface side is formed in all or a part of the peripheral portion along the inner peripheral wall surface, the planar shape substantially along the inner peripheral wall surface Is provided.
[0016]
In the present invention, as described above, not only oil and water but also metal dust are removed. For this reason, preferably, a dust separating filter is provided on the upper surfaces of the first plate and the second plate to which these are attached. The attached metal dust is captured together with oil and water by the dust separating filter, and the oil and water are separated and transferred to the lower part of the main body by an oil / water transfer pipe.
[0017]
The filter for dust separation may be any filter that stops fine metal dust and allows oil and moisture to pass through, and a preferred embodiment is a filter made of polypropylene.
[0018]
In the present invention, the uppermost first plate body forming the bypass flow path is provided inside the inner peripheral wall surface with an inclined upper surface. Thus, the uppermost first plate having the largest amount of adhesion can be transferred to the lower portion of the main body by the oil / water transfer pipe.
[0019]
【Example】
FIG. 1 is an explanatory view showing a cross-sectional configuration of the front of an embodiment of the oil mist removing device of the present invention. FIG. 2 is an explanatory view showing the configuration of the plane of FIG. FIG. 3 is an explanatory diagram showing the configuration of the plane of FIG. FIG. 4 is an explanatory diagram showing the configuration of the left side surface of FIG. FIG. 5 is an explanatory diagram showing the front configuration of the first disk arranged at the top in FIG. FIG. 6 is an explanatory diagram showing a planar configuration of the first disk of FIG. FIG. 7 is an explanatory diagram showing the front configuration of the first disk other than the uppermost one in FIG. FIG. 8 is an explanatory diagram showing a planar configuration of the second disk of FIG.
[0020]
As shown in the figure, the oil mist removing device 10 includes a main body 11 having a cylindrical inner wall surface, an introduction pipe 12 for tangentially feeding the inner wall surface of the upper part of the main body 11, and a gas in a lower central portion of the main body 11 from above. And an exhaust pipe 13 arranged on the axis of the main body for discharging. A viewing window 14 is provided on an opposite side of the introduction pipe 12, and a discharge port 15 for discharging accumulated oil and moisture is provided at a lower portion of the main body 11.
[0021]
Inside the main body 11, the first disks 20, 21 and the second disks 22 are alternately stacked from below the introduction pipe 12 to form a bypass flow path. That is, the first circular plates 20 and 21 provided on the inner peripheral wall surface of the main body 11 in a plane substantially parallel to the horizontal plane of the main body have a peripheral portion of a through hole 25 through which the central exhaust pipe 13 passes. A communication hole 26 is formed from the upper surface side to the lower surface side. In the second disk 22 substantially parallel to the horizontal plane of the main body 11, a communication hole 27 from the upper surface side to the lower surface side is formed between the entire peripheral edge along the inner peripheral wall surface and the peripheral wall without the main body 11. Have been.
[0022]
The first discs 20 and 21 and the second disc 22 allow the gas entering from the introduction pipe 12 to pass through the first disc 21 from the central portion of the gas rotating and moving along the inner wall surface. Then, it moves downward, and further moves to the peripheral side along the upper surface of the second disk. In the meantime, the gas is rotating along the axis of the main body 11 and there is nothing that hinders the rotational movement, so that the gas passes through the first disk 21 and the second disk 22 alternately. It is rotating along the axial direction. Therefore, oil, moisture, and metal dust, which can no longer float in the gas, adhere to and be removed from the upper surfaces of the disks 20, 21, 22.
[0023]
Each of the stacked first disks 20 and 21 is provided with a first oil / water transfer pipe 23 for conducting oil / water attached to the upper surface to the back surface. It is guided by the transfer pipe 23 onto the first disk 21 at the next lower stage, and finally to the lower part of the main body 11. Each of the second disks 22 similarly stacked is provided with a second oil / water transfer pipe 24 that conducts oil / water attached to the upper surface to the back surface. It is guided on the second disk 22 of the next lower stage, and finally guided to the lower part of the main body 11.
[0024]
Further, as shown in FIG. 4, the uppermost first disk 20 is provided on the inner peripheral wall surface with its upper surface inclined. Thus, the uppermost first disk having the largest amount of adhesion can be transferred to the lower portion of the main body by the oil / water transfer pipe.
[0025]
As shown in FIGS. 6 and 7, on the upper surfaces of the first disks 20, 21 and the second disk 22, a dust separation filter 30 made of polypropylene is provided. The metal dust adhered by the dust separating filter 30 is captured together with oil and water, and the oil and water are separated and transferred to the lower part of the main body by an oil / water transfer pipe.
[0026]
As described above, the oil mist removal device of the present invention has a simple structure, requires less maintenance, and removes oil, moisture, and metal dust in a gas in an atmosphere in which oil, moisture, and metal dust float in a fine state. Can be. Therefore, it can be designed small. Therefore, the present invention can be applied not only to a stationary type but also to a vehicle type. For example, the present invention can be applied to the exhaust of a vacuum pump of a sanitary car (vacuum car) equipped with a vacuum pump (Nash pump), and can eliminate clogging of a deodorizing device (including a filter) by oil. .
[0027]
【The invention's effect】
As described above, the present invention is to provide an oil mist removal device which has a simple structure, requires less maintenance, and removes oil, moisture and metal dust in a gas in an atmosphere in which oil, moisture and metal dust float in a fine state. There is an effect that can be.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a cross-sectional configuration of a front surface of an embodiment of an oil mist removing device of the present invention.
FIG. 2 is an explanatory diagram showing a plan configuration of the oil mist removing device shown in FIG. 1;
FIG. 3 is an explanatory diagram illustrating a configuration of a left side surface of the oil mist removing device illustrated in FIG. 1;
FIG. 4 is an explanatory diagram showing a front configuration of a first disk arranged at the top of the oil mist removing device shown in FIG. 1;
FIG. 5 is an explanatory diagram showing a plan configuration of a first disk other than the uppermost stage of the oil mist removing device shown in FIG. 1;
FIG. 6 is an explanatory diagram showing a front configuration of a first disk other than the uppermost stage of the oil mist removing device shown in FIG. 1;
FIG. 7 is an explanatory diagram showing a plan configuration of a second disk of the oil mist removing device shown in FIG. 1;
[Explanation of symbols]
10. Oil mist removal device,
11 ... body,
12 ... Introduction pipe,
13 ... exhaust pipe,
14 ... peep window,
15 ... outlet,
20: first disc (top row),
21 ... the first disk,
22 ... second disk,
23 ... first oil / water transfer pipe,
24 ... second oil / water transfer pipe
25 ... through-hole,
26 ... communication hole,
27 ... communication hole,
30 ... Dust separation filter,

Claims (5)

A main body having a cylindrical inner wall surface having a vertical axis;
An inlet pipe for sending a gas containing oil, moisture, and metal dust in a substantially horizontal direction not intersecting with the axis of the main body;
An exhaust pipe for discharging gas in the lower center of the main body,
A bypass flow path in which the inside of the cylinder from the introduction pipe to the exhaust pipe is partitioned into a maze by a partition plate,
An oil / water transfer pipe for transferring oil / water collected in the bypass to a lower portion of the main body. The main body has a cylindrical inner wall surface,
The oil mist removing device according to claim 1, wherein the inlet pipe tangentially sends gas containing oil, moisture, and metal dust to an inner wall surface of an upper portion of the cylinder. The exhaust pipe is formed so as to pass upward in the axial direction of the main body,
The bypass flow path,
A first plate body in which a communication hole from the upper surface side to the lower surface side is formed in the center portion, and which is provided on the inner peripheral wall surface in a plane substantially parallel to a horizontal plane of the main body;
A communication hole from an upper surface side to a lower surface side is formed in all or a part of a peripheral portion along the inner peripheral wall surface, and a second plate body substantially parallel to a horizontal plane of the main body is alternately arranged. Is formed,
The oil mist removal device according to claim 1, wherein the oil / water transfer pipe is a pipe arranged from the first plate body and the second plate body to a lower part of the main body. 4. The oil mist removing device according to claim 3, further comprising a dust separation filter mounted on upper surfaces of the first plate and the second plate. 5. 4. The oil mist removal device according to claim 3, wherein an uppermost surface of the uppermost first plate forming the bypass channel is inclined and provided inside the inner peripheral wall surface. 5.

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