KR102556502B1 - Apparatus for recovery the oil - Google Patents

Abstract

The present invention discloses an oil recovery device. The present invention has an oil tank having an inlet through which oil is recovered and storing the inflowed oil, and disposed inside the oil tank to face the inlet and disposed in a first direction parallel to the bottom surface of the oil tank. A support portion disposed on the support portion and connected to the oil tank, a portion formed parallel to the first direction, and a portion connected to the portion bent in a second direction different from the first direction. It includes at least one induction step part and an induction slant extending from another part of the induction step part.

Description

Oil recovery device {Apparatus for recovery the oil}

The present invention relates to an apparatus, and more particularly to an oil recovery apparatus.

In general, by supplying oil to a rotating machine such as a compressor or a rotating body or a bearing supporting the rotating body, friction generated during operation of the rotating machine can be reduced. At this time, in the case of oil supplied to the rotating machine, it may be supplied from the outside of the rotating machine. However, in the above case, oil must be continuously supplied to the rotating machine because oil scattering occurs according to the operation of the rotating machine.

In order to solve the above problem, the rotary machine may be provided with an oil recovery device that supplies oil to the rotary machine and collects oil scattered when the rotary machine is used and supplies it to the rotary machine.

Such an oil recovery device not only supplies oil to the rotating machine, but also can continuously supply oil to the rotating machine after receiving the oil that scatters when the rotating machine is used.

In the above case, the oil recovery device and the rotary machine may be connected through a pipe through which the oil moves. At this time, air bubbles may be generated in the oil during operation of the rotary machine or when oil is supplied from the oil recovery device to the rotary machine, and these air bubbles may affect the operation of the rotary machine as well as the oil recovery device.

The oil recovery device as described above is specifically disclosed in Republic of Korea Patent Publication No. 2015-0107209 (Title of Invention: Oil Recovery Device for Compressor, Applicant: Hanwha Power Systems Co., Ltd.).

Republic of Korea Patent Publication No. 2015-0107209

Embodiments of the present invention are intended to provide an oil recovery device.

One aspect of the present invention is an oil tank having an inlet through which oil is recovered and storing the inflowed oil, disposed inside the oil tank to face the inlet, and in a first direction parallel to the bottom surface of the oil tank. A support portion disposed on the support portion and connected to the oil tank, a portion formed parallel to the first direction, and a portion connected to the support portion in a second direction different from the first direction Disclosed is an oil recovery device including at least one induction step portion bent in an induction step portion and an induction slant extending from another part of the induction step portion.

In addition, a trap part disposed on at least one of the support part, the induction step part, and the induction slant to reduce the flow rate of the oil may be further included.

In addition, the trap unit may include at least one of a groove disposed on at least one of the support portion, the induction step portion, and the induction slant, and a partition wall protruding from at least one of the support portion, the induction step portion, and the induction slant. can include

In addition, a plurality of trap parts may be provided, and some of the plurality of trap parts may be arranged in a zigzag shape in a flow direction of the oil.

In addition, a plurality of trap units may be provided, and the plurality of trap units may include a plurality of first trap units disposed in a line and a plurality of second trap units disposed to form a column different from the first trap unit. .

In addition, each of the second trap units may be disposed between adjacent first trap units.

Embodiments of the present invention can remove air bubbles contained in oil during oil recovery. In addition, embodiments of the present invention can reduce the occurrence of vibration and noise in the pipe when the oil is circulated due to air bubbles in the oil by reducing the speed of the oil when recovering the oil.

1 is a partial perspective view showing a part of an oil recovery device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a support portion, an induction step portion, an induction thrust, and a trap portion shown in FIG. 1 .
FIG. 3 is a plan view showing a supporting portion, an induction step portion, an induction thrust, and a trap portion shown in FIG. 1 .
4 is a perspective view showing a first trap part shown in FIG. 1;
FIG. 5 is a cross-sectional view taken along line V-V of FIG. 3 .

The present invention will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Meanwhile, terms used in this specification are for describing the embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" means that a stated component, step, operation, and/or element is present in the presence of one or more other components, steps, operations, and/or elements. or do not rule out additions. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another.

1 is a partial perspective view showing a part of an oil recovery device according to an embodiment of the present invention. FIG. 2 is a perspective view showing a support portion, an induction step portion, an induction thrust, and a trap portion shown in FIG. 1 . FIG. 3 is a plan view showing a supporting part, an induction step part, an induction thrust, and a trap part shown in FIG. 1 . 4 is a perspective view showing a first trap part shown in FIG. 1; FIG. 5 is a cross-sectional view taken along line V-V of FIG. 3 .

Referring to FIGS. 1 to 5 , the oil recovery device 100 may be used in various fluid machines. For example, the oil recovery device 100 may be used by being connected to a compressor, a turbine, or the like. Hereinafter, for convenience of description, the oil recovery device 100 will be described in detail focusing on a case in which it is used in connection with the compressor .

The oil recovery device 100 may include an oil tank 110, a support part 120, an induction step part 130, an induction slant 140, and a trap part 150.

A space may be formed inside the oil tank 110 and oil may be stored. At this time, the oil tank 110 may include an inlet 111 through which oil is introduced from the outside and an outlet (not shown) through which oil is guided to the outside. This inlet 111 may be connected to an external gearbox (not shown). In addition, the outlet may be connected to the gearbox or a rotating shaft (not shown) inside the gearbox. The oil tank 110 as described above may supply oil to the rotating shaft and a bearing supporting the rotating shaft. At this time, the oil tank 110 may store the oil by recovering the supplied oil again. At this time, a certain amount of oil may always be stored in the oil tank 110, and oil more than the minimum required operating oil line 112 may be stored when driving the compressor.

The supporting part 120 may be disposed inside the oil tank 110 to correspond to the inlet 111 . At this time, the inlet 111 may be vertically connected to the oil tank 110 to guide oil to the lower surface of the oil tank 110 . In particular, the inlet 111 may guide oil in a load direction.

The support portion 120 as described above may include a support plate 121, a connection plate 122 and a blocking plate 123. At this time, the support plate 121 may be disposed flat, it is also possible to be formed inclined in the load direction or disposed perpendicular to the load direction. Hereinafter, for convenience of explanation, a case in which the support plate 121 is disposed in a direction perpendicular to the load direction will be described in detail. In this case, the support plate 121 may be disposed parallel to the bottom surface of the oil tank 110. At this time, the support plate 121 may guide the oil supplied from the inlet 111 in a first direction that is different from the load direction. In this case, the first direction may be a direction parallel to the bottom surface of the oil tank 110 . In particular, the first direction may be a flow direction of oil. The connection plate 122 may be bent in the second direction from the support plate 121 . In this case, the second direction may be a direction different from the first direction. For example, the second direction may be the same as the load direction and may be perpendicular to the first direction. That is, the second direction may be a direction from the supporting plate 121 toward the bottom surface of the oil tank 110 . The blocking plate 123 is disposed on the side of the supporting plate 121 and the connection plate 122 to block oil from moving to the side of the supporting plate 121 . In this case, the blocking plate 123 may be disposed perpendicular to one surface of the supporting plate 121 and the connecting plate 122 . For example, the blocking plate 123 may be arranged in a second direction different from the first direction. The blocking plate 123 may be disposed on both sides of the support plate 121 and both sides of the connection plate 122 . The blocking plate 123 may prevent oil moving between the supporting plate 121 and the connecting plate 122 from moving to the side of the supporting plate 121 and the connecting plate 122 .

The guide step unit 130 may be connected to the support unit 120 to guide oil. At this time, at least one induction step unit 130 may be provided. When a plurality of induction step units 130 are provided, the plurality of induction step units 130 may be continuously arranged and connected to each other. Hereinafter, for convenience of description, a case in which two induction step units 130 are provided will be described in detail.

The induction step unit 130 may include a first induction step unit 131 and a second induction step unit 132 connected to each other. At this time, since the first induction step part 131 and the second induction step part 132 are formed identically or similarly to each other, hereinafter, the first induction step part 131 will be described in detail.

The first induction step unit 131 includes a first moving plate 131a flatly disposed in a first direction, a first bending plate 131b bent in a second direction from the first moving plate 131a, and a first moving plate 131b. A first guide 131c disposed on a side surface of the plate 131a and the first bent plate 131b may be included. At this time, the first movable plate 131a may be connected to the connection plate 122 . Also, the first movable plate 131a may be disposed parallel to the bottom surface of the oil tank 110 and may have a flat shape. The first movable plate 131a may be disposed on a different surface from the support plate 121 and may be disposed with a step difference from the support plate 121 . The first bending plate 131b may be disposed in the second direction and vertically connected to the first moving plate 131a. The first guide 131c may be disposed on side surfaces of the first moving plate 131a and the first bending plate 131b. In this case, the upper surface of the first guide 131c may be formed higher than the upper surface of the first moving plate 131a and protrude from the upper surface of the first bending plate 131b.

The second induction step unit 132 may be connected to the first induction step unit 131 . In this case, the support part 120, the first induction step part 131 and the second induction step part 132 may be connected to each other to form a staircase shape. In this case, the speed of the oil may decrease while sequentially passing through the support part 120, the first induction step part 131, and the second induction step part 132.

The induction thrust 140 may be connected to the induction step unit 130 . The induction thrust 140 may be formed in various shapes. For example, in one embodiment, the induction slant 140 may be formed in a stair shape identical to or similar to that of the induction step unit 130 . As another embodiment, the induction slant 140 may include an inclined plate 141 disposed inclinedly inside the oil tank 110 and an inclined guide 142 disposed on the side of the inclined plate 141 . Hereinafter, for convenience of description, a case in which the induction slant 140 includes the inclined plate 141 and the inclined guide 142 will be described in detail.

The inclined plate 141 may be disposed flat and inclined toward the bottom of the oil tank 110 . At this time, one end of the inclined plate 141 is connected to the induction step portion 130, and the other end of the inclined plate 141 may be disposed closer to the bottom of the oil tank 110 than one end of the inclined plate 141. . The other end of the inclined plate 141 may be disposed below the operating oil line 112 . In this case, the other end of the inclined plate 141 may be submerged in oil. The inclined guide 142 is disposed on the side of the inclined plate 141 to guide oil. At this time, the inclined guide 142 may be connected to the second guide 132c.

The trap part 150 may be disposed on at least one of the support part 120 , the induction step part 130 and the induction slant 140 . At this time, the trap part 150 can reduce the moving speed of the oil moving the support part 120, the induction step part 130, and the induction thrust 140. Hereinafter, for convenience of description, a case in which the trap unit 150 is disposed in the induction step unit 130 will be described in detail.

A plurality of trap units 150 may be provided. At this time, the trap unit 150 may include a first trap unit 151 arranged in one line and a second trap unit 152 arranged in a different column from the first trap unit 151 . In this case, the first trap unit 151 and the second trap unit 152 may be disposed to be spaced apart from each other in the flow direction of oil. In addition, the plurality of trap units 150 may include third trap units 153 disposed in different columns from the first trap unit 151 and the second trap unit 152 . At this time, the plurality of trap units 150 are not limited to the above, and may be arranged to form a plurality of columns, and the number of trap units 150 disposed in each column may be plural. Hereinafter, for convenience of description, a case in which the plurality of trap units 150 includes the first trap unit 151 to the sixth trap unit 156 will be described in detail.

The first trap part 151 , the second trap part 152 , and the third trap part 153 may be disposed on the first induction step part 131 . In addition, the fourth trap part 154 , the fifth trap part 155 , and the sixth trap part 156 may be disposed on the second induction step part 132 . Each of the first trap part 151 to the sixth trap part 156 may be either a groove or a protrusion. Hereinafter, for convenience of explanation, the first trap part 151, the second trap part 152, the fourth trap part 154, and the fifth trap part 155 are projections, and the third trap part 153 and The sixth trap unit 156 will be described in detail focusing on the case of a groove.

The first trap part 151 to the third trap part 153 may be disposed on the first moving plate 131a. At this time, in the first trap part 151, a plurality of first protrusions 151a may be arranged in a line. At this time, the first protrusion 151a may be formed in various shapes. For example, the first protrusion 151a may be formed in a triangular shape. In addition, the first protrusion 151a may be formed in an arcuate or semicircular shape. In this case, a portion of the first protrusion 151a is formed to be the highest, and the other portion is formed to gradually decrease from the highest portion, so that both ends of the first protrusion 151a may be formed to be the lowest. The plurality of first protrusions 151a may be arranged to be spaced apart from each other. In particular, since the plurality of first protrusions 151a are adjacent to each other, the lowest portions may be adjacent to each other.

The second trap unit 152 may be provided in plurality to form a different row from the first trap unit 151 and may be disposed to be spaced apart from the first trap unit 151 . For example, the second trap unit 152 may be disposed on a downstream side of the oil flow direction compared to the first trap unit 151 . In this case, the second trap part 152 may include a second protrusion 152a. In this case, the second protrusion 152a of the second trap part 152 and the first protrusion 151a of the first trap part 151 may have the same or similar shapes. The second protrusion 152a may be arranged in a zigzag form with the first protrusion 151a along the oil flow direction. For example, the second protrusion 152a may be disposed between adjacent first protrusions 151a, and the first protrusion 151a may be disposed between adjacent second protrusions 152a. In this case, the oil divided by the first protrusion 151a does not directly pass through the second trap part 152 and may collide with the second protrusion 152a to be ground again, and the moving distance of the oil may increase. In addition, the second protrusion 152a may compress air bubbles inside the oil by colliding with oil to discharge gas inside the air bubbles to the outside or remove air bubbles.

The third trap unit 153 may be disposed adjacent to at least one of the first trap unit 151 and the second trap unit 152 . In particular, the third trap unit 153 is formed in a groove shape to store some of the moving oil, thereby reducing the moving speed of the oil or removing air bubbles contained in the oil. The third trap part 153 may be disposed between at least one of adjacent first protrusions 151a and between adjacent second protrusions 152a. In this case, the third trap unit 153 may reduce the speed of oil flowing between the adjacent first protrusions 151a or between the adjacent second protrusions 152a or reduce air bubbles inside the oil. .

The first trap part 151 to the third trap part 153 as described above may be arranged to be spaced apart from each other in the first induction step part 131 . At this time, the first trap part 151 to the third trap part 153 may be respectively disposed on the first moving plate 131a. In particular, in the first trap unit 151 to the third trap unit 153, the first trap unit 151, the third trap unit 153, and the second trap unit 152 are sequentially arranged along the oil flow direction. It can be.

The fourth trap unit 154, the fifth trap unit 155, and the sixth trap unit 156 are the same as the first trap unit 151, the second trap unit 152, and the third trap unit 153, respectively. can be formed. At this time, the fourth trap part 154 to the sixth trap part 156 may be disposed to be spaced apart from each other in the second induction step part 132 . In this case, the fourth trap unit 154, the sixth trap unit 156, and the fifth trap unit 155 may be sequentially disposed on the second moving plate 132a in the oil flow direction.

Meanwhile, looking at the operation of the oil recovery device 100 as described above, when the compressor is operating, the oil recovery device 100 can supply oil to the compressor. At this time, the oil supplied through the outlet may move to the compressor through a pump (not shown) installed in a pipe (not shown) connected to the outlet.

Some of the oil supplied to the compressor may be returned to the oil recovery device 100 after use. At this time, oil may enter the inside of the oil tank 110 through the inlet 111 . These oils may contain bubbles depending on the operation of the compressor. For example, when compressed gas applies force to oil according to the operation of a compressor, the oil moves and aggregates. These air bubbles may remain in the oil even after entering the oil tank 110, and if there are many air bubbles, when the oil is circulated back to the compressor, vibration or noise may occur in the pipe or the like due to the air bubbles.

As described above, the oil containing bubbles may be supplied to the support part 120 through the inlet 111 . At this time, since the support plate 121 is parallel to the bottom surface of the oil tank 110, oil may accumulate on the upper surface of the support plate 121. In this case, when oil is accumulated to a certain extent on the support plate 121, the oil may gradually move in one direction. For example, oil may move from the support plate 121 to the first induction step portion 131 side.

Oil may not only move to the first moving plate 131a through the connecting plate 122, but may also fall from the support plate 121 and move to the first moving plate 131a. In this case, potential energy is converted into kinetic energy, so that the oil can move a certain distance on the first moving plate 131a. In addition, when oil is continuously supplied, the oil on the first moving plate 131a, like the oil on the support plate 121, can move toward the first bending plate 131b while being piled up to a certain extent on the first moving plate 131a. there is.

When the oil moves as described above, the oil may reach the first trap part 151 . In this case, the oil may collide with the first protrusion 151a and move to a space between adjacent first protrusions 151a. At this time, the oil may be compressed while colliding with the first protrusion 151a, and as the oil is compressed, bubbles inside the oil may be destroyed or divided into several, and some of the gas inside the bubbles may be discharged to the outside of the oil.

Oil passing through the first trap part 151 may move to the second trap part 152 . At this time, the second protrusion 152a is arranged to face the space between the adjacent first protrusions 151a as described above, so that the oil passing between the adjacent first protrusions 151a is transferred to the second protrusion 152a. can collide with At this time, the highest part of the second protrusion 152a is disposed between adjacent first protrusions 151a, thereby blocking the flow of oil. In particular, oil colliding with the second protrusion 152a may move to both ends of the second protrusion 152a, thereby increasing the moving distance.

The oil moving as described above may collide with the second protrusion 152a and move to the third trap part 153 . In this case, the third trap part 153 may be disposed between adjacent second protrusions 152a. In particular, the third trap part 153 is formed in the shape of a groove as described above to temporarily contain oil. As the oil passes through the third trap part 153 as described above, a portion of the oil enters the inside of the groove and the speed is reduced, and air bubbles inside the oil can be removed by mixing the oil in the groove while entering the inside of the groove. The oil that has moved to the third trap part 153 as described above may enter between the second protrusions 152a and pass through the second trap part 152 .

As described above, while the oil passes through the first trap part 151 to the third trap part 153, the moving speed of the oil may decrease. In addition, while the oil passes through the first trap part 151 to the third trap part 153, air bubbles inside may be removed or reduced.

When the above process is completed, the oil may move from the first moving plate 131a to the second moving plate 132a along the first bent plate 131b. Thereafter, while passing through the third trap unit 153 to the sixth trap unit 156, the oil may move in the same or similar manner as when passing through the first trap unit 151 to the third trap unit 153 described above. there is.

As described above, the oil passing through the induction step portion 130 moves along the second bent plate 132b to the induction slant 140 and can move to the lower surface of the oil tank 110 through the induction slant 140. there is. At this time, as the tip of the induction slant 140 is disposed below the operating oil line 112 as described above, the oil does not fall to the surface of the oil in the oil tank 110, so that the oil stored in the oil tank 110 The generation of air bubbles can be minimized.

Accordingly, the oil recovery device 100 can remove or minimize air bubbles contained in the oil when recovering and supplying the oil, thereby reducing vibration and noise of the pipe due to the oil.

The oil recovery device 100 can reduce the generation of bubbles in the oil inside the oil tank 110 by not allowing the oil to fall to the surface of the oil within the oil tank 110 .

The oil recovery device 100 can minimize the flow of oil in the oil tank 110 by reducing the speed of the oil supplied from the inlet 111 to minimize the flow speed of the oil.

Although the present invention has been described with respect to the preferred embodiments mentioned above, various modifications and variations are possible without departing from the spirit and scope of the invention. Accordingly, the scope of the appended claims will include such modifications and variations as long as they fall within the gist of the present invention.

100: oil recovery device 140: induction thrust
110: oil tank 141: inclined plate
111: inlet 142: inclined guide
112: operating oil line 150: trap part
120: supporting part 151: first trap part
121: supporting plate 152: second trap part
122: connecting plate 153: third trap part
123: blocking plate 154: fourth trap part
130: induction step unit 155: fifth trap unit
131: first induction step unit 156: sixth trap unit
132: second induction step unit

Claims (6)

an oil tank having an inlet through which oil is recovered and storing the introduced oil;
a support portion disposed inside the oil tank to face the inlet and disposed in a first direction parallel to a bottom surface of the oil tank;
At least one guide disposed on the support and connected to the oil tank, a part formed parallel to the first direction, and a part connected to the other part bent in a second direction different from the first direction step part;
an induction slant extending from another part of the induction step portion; and
A trap part disposed on at least one of the support part, the induction step part, and the induction slant to reduce the flow rate of the oil;
The trap part,
A first trap unit including a plurality of first protrusions disposed in a line and spaced apart from each other to change a flow direction of the oil; and
A second trap unit including a plurality of second protrusions disposed in a different row from the first trap unit and spaced apart from each other to change a flow direction of the oil;
Each of the second projections is disposed between the first projections adjacent to each other,
The height of each of the first projection and the height of each of the second projection is the highest at one part, and gradually decreases from one part to the end of each of the first projection and the end of each of the second projection. . delete According to claim 1,
The oil recovery device of claim 1, wherein the trap unit further includes a groove disposed in at least one of the supporting unit, the induction step unit, and the induction slant. delete delete delete

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