KR20240095758A - Oil-water separator and industrial washer including the same - Google Patents

Abstract

The present invention relates to an oil-water separator configured to effectively separate oil components contained in washing water circulating in an industrial washing machine, and an industrial washing machine including the same.
For this purpose, the oil-water separator of the present invention is an oil-water separator for separating and discharging oil components contained in washing water used in industrial washing machines for washing impurities attached to the surface of objects. The oil-water separator is supplied with washing water containing oil components. An inlet portion, an outlet portion including an outlet through which wash water with a high oil content is discharged and a drain through which wash water with a low oil content is discharged, and a centrifugal action portion formed in a spiral shape and connecting the inlet portion and the outlet portion. It is configured to include an oil-water separation pipe, and the oil component is collected in a space close to the spiral axis of the centrifugal action portion by the action of centrifugal force while the washing water containing the oil component flows through the centrifugal action portion to achieve oil-water separation. It is composed.

Description

Oil-water separator and industrial washing machine including the same {OIL-WATER SEPARATOR AND INDUSTRIAL WASHER INCLUDING THE SAME}

The present invention relates to an oil-water separator and an industrial washing machine including the same, and more specifically, to an oil-water separator configured to effectively separate oil components contained in washing water circulating in an industrial washing machine, and an industrial washing machine including the same.

The surface of industrially processed products such as machinery or mechanical parts after metal processing contains various metal processing oils such as various cutting oils, plastic working oils, greases, rust preventive oils, rolling oils, and lubricants, as well as their modified oil-like substances, oxidized scale, and substances generated during rolling, etc. There is a considerable amount of fine chips, dust, etc. attached.

Since the surface impurities of the above-mentioned industrially processed products reduce the efficiency of subsequent plating, painting, and surface treatment processes, it is necessary to clean and remove them in advance.

Meanwhile, an industrial washer is used to clean and remove surface impurities of industrially processed products, and the industrial cleaner is configured to remove impurities by spraying washing water through a nozzle onto the surface of the industrially processed product within a closed chamber.

The washing water used in the industrial washing machine is supplied through a separate tank and is configured to be recycled through a circulation system. During the washing process, metal processing oil, etc. attached to the surface of industrially processed products is continuously mixed with the washing water, resulting in oil. It is necessary to separate the components and discharge them.

For this purpose, as disclosed in Patent No. 10-1234718, an oil-water separator is used, and recent industrial washing machines may be configured so that the oil-water separator is integrally connected.

Specifically, the industrial washing machine of the above-described configuration supplies the wash water that has been washed in a sealed chamber to a dirty tank, separates the oil contained in the wash water, and then supplies it to the clean tank, and reuses the wash water from the clean tank in the sealed chamber. It is configured to make this possible.

However, the conventional industrial washer system is configured to separate oil by simply installing an oil skimmer in the dirty tank. The oil component is finely mixed in the wash water used in the industrial washer, so the oil separation efficiency using the oil skimmer is low. There was a problem of falling, and due to this problem, the replacement cycle of the washing water was shortened.

Registered Patent No. 10-1234718 (2013. 02. 19)

The purpose of the present invention to solve the problems caused by the prior art is to provide an oil-water separator configured to effectively separate oil components contained in washing water circulating in an industrial washing machine, and an industrial washing machine including the same.

The oil-water separator of the present invention for solving the above technical problem is an oil-water separator for separating and discharging the oil component contained in the washing water used in an industrial washing machine for cleaning impurities attached to the surface of an object, and the oil component is included. An outlet portion including an inlet portion through which the washed water is supplied, an outlet through which the wash water with a high oil content is discharged, and a drain through which the wash water with a low oil content is discharged, is formed in a spiral shape and connects the inlet portion and the outlet portion. It is configured to include; an oil-water separation pipe including a centrifugal action unit, wherein the oil component is collected in a space close to the spiral axis of the centrifugal action unit by the action of centrifugal force while the washing water containing the oil component flows through the centrifugal action section. It is configured to achieve oil-water separation.

Preferably, the drain port may be arranged close to the spiral axis of the centrifugal action unit, and the drain port may be arranged outside the drain port.

Preferably, a collection plot configured to float in the dirty tank of the industrial washing machine into which wash water containing the oil component flows, and the wash water containing the oil component flowing into the collection plot are supplied to the inlet of the oil-water separation pipe. It may further include a washing water supply unit configured to include a connection pipe.

Preferably, inside the connection pipe, a plurality of semicircular deflectors arranged at an angle to be inclined with respect to the circumferential direction are fixed so that a vortex can be formed so that the oil components and the washing water with different densities are separated by different centrifugal forces. there is.

Preferably, a buffer tank that receives and temporarily stores wash water with a high oil content discharged from the drain port; a retention tank that receives wash water with a high oil content discharged through a free outlet formed at the bottom of the buffer tank; a plurality of partition walls installed in the retention tank to delay the flow of the wash water with a high oil content; An overflow wall located in the retention tank after passing through the partition wall and having a slit formed at the lower end; An oil discharge pipe located in the retention tank after passing the overflow wall; and an oil waste pipe located in the retention tank after passing the overflow wall. and a clean tank connection pipe located lower than the oil waste pipe in the retention tank after passing the overflow wall.

Preferably, a spiral flange is provided on the inner wall of the buffer tank to guide the flow of the wash water with a high oil content to prevent the generation of bubbles when the wash water with a high oil content is supplied into the interior of the buffer tank. It can be.

Preferably, the centrifugal action portion of the oil-water separation pipe is configured to be disposed inside the buffer tank to prevent the generation of bubbles when the wash water with a high oil content is supplied to the inside of the buffer tank. The flow can be guided by the surface of the centrifugal action unit.

An industrial washing machine including an oil-water separator as described above is disclosed.

As described above, the present invention has the advantage of effectively separating oil components contained in washing water circulating in an industrial washing machine.

Meanwhile, as the centrifugal action portion of the oil-water separation pipe is configured to be located inside the buffer tank, the centrifugal action portion performs the centrifugal separation function and the flow guidance function of high-pressure washing water at the same time, which has the advantage of compactizing the overall size of the device.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Figure 1 is a schematic diagram showing an industrial washing machine including an oil-water separator according to a first embodiment of the present invention.
Figure 2 is a perspective view showing the connection state of the oil-water separator and the dirty tank according to the first embodiment of the present invention.
Figure 3 is a perspective view showing an oil-water separator according to the first embodiment of the present invention.
Figure 4 is a plan view and side cross-sectional view showing an oil-water separator according to the first embodiment of the present invention.
Figure 5 is a perspective view showing an oil-water separator according to a second embodiment of the present invention.
Figure 6 is a plan view and a side cross-sectional view showing an oil-water separator according to a second embodiment of the present invention.

The present invention can be implemented in various other forms without departing from its technical spirit or main features. Accordingly, the embodiments of the present invention are merely examples in all respects and should not be construed as limited.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms.

The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.

The term and/or includes any of multiple items or a combination of multiple items.

When a component is said to be 'connected' or 'connected' to another component, it is understood that it may be directly connected or connected to the other component, but that other components may exist in between. It should be.

On the other hand, when a component is mentioned as being ‘directly connected’ or ‘directly connected’ to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as 'include', 'equipped', 'have', etc. are intended to designate the presence of features, numbers, steps, operations, components, parts, or a combination thereof described in the specification. It should be understood that it does not exclude in advance the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains.

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted.

In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Figure 1 is a schematic diagram showing an industrial washing machine including an oil-water separator according to a first embodiment of the present invention. As shown in Figure 1, the industrial washing machine including an oil-water separator according to a first embodiment of the present invention is an object. Washing water mixed with oil components is used to wash impurities attached to the surface and is supplied to the dirty tank (10).

The oil component of the wash water mixed with the oil component supplied to the dirty tank 10 is separated in an oil-water separator. Specifically, the wash water with a high oil content is discharged to the oil waste pipe 350 and discarded, and the oil content is also discharged to the oil waste pipe 350. High-purity washing water with low purity is supplied to the clean tank (20) through the clean tank connection pipe (360).

The high-purity washing water with a low content of high-purity oil supplied to the clean tank 20 is used again to clean impurities attached to the surface of the object.

Figure 2 is a perspective view showing the connection state of the oil-water separator and the dirty tank according to the first embodiment of the present invention, Figure 3 is a perspective view showing the oil-water separator according to the first embodiment of the present invention, and Figure 4 is the present invention. A plan view and a side cross-sectional view showing an oil-water separator according to the first embodiment of the invention, as shown in FIGS. 2 to 4, the oil component is separated from the wash water mixed with the oil component supplied to the dirty tank 10. In order to discharge, an oil-water separator according to the first embodiment is provided.

The oil-water separator according to the first embodiment connects the washing water supply unit 100, the oil-water separation pipe 200, the buffer tank 310, the partition wall 330, the overflow wall 340, the oil waste pipe 350, and the clean tank. It is composed of a retention tank 320 equipped with a pipe 360.

First, the washing water supply unit 100 is a part for supplying washing water containing oil components contained in the dirty tank 10 (hereinafter, oil mixed washing water) to the oil-water separation pipe 200, and the collection plot 110 and a connection pipe 120, and the oil-mixed wash water in the dirty tank 10 is supplied at high pressure to the oil-water separation pipe 200 through means such as a pump not shown in the drawing.

The collection float 110 is configured to float within the dirty tank 10 to allow the oil-mixed wash water to flow in. Specifically, as shown in FIG. 2, the collection float 110 is formed as a whole in a funnel shape, and the oil-mixed wash water A plurality of inlet holes 113 are formed so that the material can flow into the inside, and an air pocket 111 for floating may be formed on the upper edge.

Accordingly, the oil-mixed wash water may flow into the collection float 110 through the inlet hole 113 of the collection float 110 while the collection float 110 is floating on the water surface due to the air pocket 111.

The washing water supply unit 100 is a tubular member for supplying the oil-mixed washing water flowing into the collection plot 110 to the inlet 210 of the oil-water separation pipe 200, and collects the oil according to the change in the height of the water surface. It may be made of a flexible material such as rubber so that it can be deformed in response to the height of the float 110.

Meanwhile, a plurality of semicircular deflectors 121 may be fixed to a portion of the inner section of the connection pipe 120, and centrifugal force of oil components having different densities and washing water may be different due to the plurality of semicircular deflectors 121. A vortex can be formed to separate the particles.

That is, as the oil-mixed wash water passes through a plurality of fixed semicircular deflectors 121, a vortex is formed, and the oil component and the wash water component of the rotating oil-mixed wash water can be primarily separated by centrifugal force due to this vortex. , Specifically, the oil component, which has a lower density than the washing water component, gathers in the center of the connection pipe 120 and the particles become larger, and the washing water component gathers on the inner outer edge of the connection pipe 120.

According to the configuration of the washing water supply unit 100 as described above, a primary centrifugal force is applied to the oil-mixed washing water by a plurality of semicircular deflectors 121 fixed to the inside of the connecting pipe 120, The washing water component and the oil component can be primarily separated.

Here, the primary separation of the wash water component and the oil component can be understood as the particles of the oil component being aggregated into larger particles.

Next, the oil-water separation pipe 200 is a part for secondarily applying centrifugal force to the oil-mixed wash water, and has an inlet portion 210 through which wash water containing oil components is supplied, and wash water with a high oil content. An outlet portion 220 including a discharge port 221 and a drain port 223 through which wash water with a low oil content is discharged, is formed in a spiral shape and connects the inlet portion 210 and the outlet portion 220. It is configured to include a centrifugal action unit 230.

The oil-water separation pipe 200 is, for example, made of steel and is configured to maintain a spiral shape. As the oil-mixed wash water flows through the centrifugal action unit 230, the oil component is separated by centrifugal force. It is collected in a space close to the spiral axis of the centrifugal action unit 230, and the washing water components act to gather around the inner perimeter of the centrifugal action unit 230.

Therefore, the oil-mixed wash water that is primarily centrifuged by the plurality of semicircular deflectors 121 inside the connection pipe 120 is secondarily centrifuged, and the outlet portion 220 of the oil-water separation pipe 200 When the oil-mixed wash water reaches , the oil component and the wash water component are almost separated.

Meanwhile, the drain port 221 is connected close to the helical axis of the centrifugal action portion 230 so as to discharge the oil components collected in the space close to the helical axis of the centrifugal action portion 230, The drain hole 223 is configured to be connected to the outside of the drain hole 221 so as to discharge the washing water components collected on the inner outer edge of the unit 230.

The fluid discharged through the drain port 221 is wash water with a high oil content. The wash water with a high oil content discharged through the drain port 221 is sent to the buffer tank 310 and the retention tank 320 for post-processing. supplied.

The fluid discharged through the drain hole 223 is washing water with a low oil content, and the fluid discharged through the drain hole 223 is supplied back to the dirty tank 10.

Meanwhile, the oil content in the dirty tank 10 is lowered through the process of continuously circulating the oil-mixed wash water in the dirty tank 10 through the wash water supply unit 100 and the oil-water separation pipe 200.

According to the configuration of the oil-water separation pipe 200 as described above, a secondary centrifugal force is applied to the oil-mixed wash water first centrifuged by the spiral centrifugal action portion 230, so that the wash water component and the oil component are separated. It can be separated secondarily.

Here, the secondary separation of the wash water component and the oil component can be understood as the oil component particles agglomerating into larger particles after the primary centrifugation, and when the oil component particles are agglomerated into large particles, they are separated by gravity. Separation can be accomplished smoothly.

Next, the fluid discharged through the drain port 221 after the primary and secondary separation is supplied to the buffer tank 310 and the retention tank 320.

The buffer tank 310 is a tank that receives and temporarily stores wash water with a high oil content discharged from the drain port 221, and the oil-mixed wash water in the dirty tank 10 flows into the oil-water separation pipe 200. When high-pressure fluid due to high-pressure supply is supplied to the retention tank 320, serious bubbles or vortices are generated. The buffer tank 310 buffers the high-pressure fluid and then supplies it to the retention tank 320. It plays a role.

In particular, the inner wall of the buffer tank 310 is provided with a spiral flange 311 that guides the flow of high-pressure washing water, and the high-pressure washing water is guided by the spiral flange 311, thereby forming the buffer tank 310. It is naturally cushioned and supplied internally.

Washing water with a high oil content supplied to the buffer tank 310 is supplied to the retention tank 320 through a free outlet 310h formed at the bottom of the buffer tank 310.

The retention tank 320 is a tank configured to receive wash water with a high oil content discharged through the free outlet 310h and stay there for a long time. Inside the retention tank 320, there is a delay in the flow of fluid. A plurality of partition walls 330 are provided to do this.

Specifically, the partition wall 330 may be formed in a straight structure or a V-shaped structure. As shown in FIG. 4, the partition wall 330 of the V-shaped structure is formed so that the passages through which the fluid flows are alternately positioned, thereby allowing the fluid to flow. The delay effect of the flow can be maximized.

Meanwhile, an overflow wall 340 is formed within the retention tank 320 after passing the last placed partition wall 330, and a slit 340s is formed at the lower end of the overflow wall 340.

That is, as the wash water with a high oil content stays and flows for a long time in the retention tank 320, the wash water collects at the bottom due to gravity, and the oil component collects at the top, thereby causing layer separation. Oil components pass through the upper part of 340, and clean washing water components of high purity pass through the slit 340s at the lower end of the overflow wall 340.

An oil waste pipe 350 is connected within the retention tank 320 after passing the overflow wall 340, and a clean tank connection pipe 360 is connected below the oil waste pipe 350.

Accordingly, only almost pure oil components are discharged and discarded through the oil waste pipe 350, and almost pure washing water is discharged through the clean tank connection pipe 360 and supplied to the clean tank 20.

Figure 5 is a perspective view showing an oil-water separator according to a second embodiment of the present invention, and Figure 6 is a plan view and a side cross-sectional view showing an oil-water separator according to a second embodiment of the present invention, washing water with a high oil content. The centrifugal action portion 230 of the oil-water separation pipe 200 is configured to be disposed inside the buffer tank 310 to prevent the generation of bubbles when supplied into the buffer tank 310, so that the oil content is determined. The high washing water is configured to flow through the surface of the centrifugal action unit 230.

In the oil-water separator according to the second embodiment, the centrifugal action portion 230 of the oil-water separator pipe 200 not only performs a secondary centrifugal separation function, but also guides the flow of washing water supplied at high pressure to the inner wall of the buffer tank 310. As it is configured to perform all functions, the overall size of the device can be compactized.

The oil-water separator of the second embodiment is the same or similar to the oil-water separator of the first embodiment except that the centrifugal action portion 230 of the oil-water separator pipe 200 is arranged inside the buffer tank 310, so detailed description is omitted.

Although the present invention has been described with a focus on preferred embodiments with reference to the accompanying drawings, it is clear to those skilled in the art that many various and obvious modifications can be made from this description without departing from the scope of the present invention. Accordingly, the scope of the present invention should be interpreted by the stated claims to include these many modifications.

10: Dirty tank 20: Clean tank
100: Washing water supply unit 110: Collection plot
120: Connector 121: Semicircular deflector
200: Oil-water separation pipe 210: Inlet
220: Exit 221: Exhaust outlet
223: Drain 230: Centrifugal action unit
310: Buffer tank 311: Spiral flange
310h: Free outlet 320: Retention tank
330: Bulkhead 340: Overflow wall
350: Oil waste pipe 360: Clean tank connection pipe

Claims (8)

An oil-water separator for separating and discharging oil components contained in washing water used in industrial washing machines for cleaning impurities attached to the surface of objects,
an outlet portion including an inlet portion through which wash water containing oil components is supplied, an outlet portion through which wash water with a high oil content is discharged, and a drain port through which wash water with a low oil content is discharged; the inlet portion is formed in a spiral shape; It consists of an oil-water separation pipe including a centrifugal section connecting the outlet section,
An oil-water separator configured to achieve oil-water separation as the oil component is collected in a space close to the spiral axis of the centrifugal action portion by centrifugal force while the washing water containing the oil component flows through the centrifugal action portion. According to paragraph 1,
The oil-water separator is characterized in that the drain port is arranged close to the spiral axis of the centrifugal action unit, and the drain port is arranged outside the drain port. According to paragraph 1,
A collection float configured to float in the dirty tank of the industrial washing machine into which wash water containing the oil component flows, and a connection pipe that supplies the wash water containing the oil component flowing into the collection plot to the inlet of the oil-water separation pipe. An oil-water separator characterized in that it further includes a washing water supply unit configured to include a. According to paragraph 3,
Inside the connector,
An oil-water separator characterized in that a plurality of semicircular deflectors arranged at an angle to be inclined with respect to the circumferential direction are fixed so that oil components and wash water with different densities are separated by different centrifugal forces. According to paragraph 1,
a buffer tank that receives and temporarily stores wash water with a high oil content discharged from the drain port;
a retention tank that receives wash water with a high oil content discharged through a free outlet formed at the bottom of the buffer tank;
a plurality of partition walls installed in the retention tank to delay the flow of the wash water with a high oil content;
An overflow wall located in the retention tank after passing through the partition wall and having a slit formed at the lower end;
an oil waste pipe located in the retention tank after passing the overflow wall; and
An oil-water separator comprising a clean tank connection pipe located lower than the oil waste pipe in the retention tank after passing the overflow wall. According to clause 5,
In order to prevent the generation of bubbles when the wash water with a high oil content is supplied into the interior of the buffer tank, a spiral flange is provided on the inner wall of the buffer tank to guide the flow of the wash water with a high oil content. Oil-water separator. According to clause 5,
In order to prevent the generation of bubbles when the washing water with a high oil content is supplied to the inside of the buffer tank, the centrifugal action part of the oil-water separation pipe is configured to be disposed inside the buffer tank, so that the washing water with a high oil content is centrifuged. An oil-water separator characterized in that the flow is guided by the surface of the operating part. An industrial washing machine comprising the oil-water separator according to any one of claims 1 to 7.

Images