KR20170022610A - Oil filtering apparatus and control method thereof - Google Patents

Abstract

Disclosed is an oil filtration apparatus. The oil filtration apparatus of the present invention comprises: a guide duct portion for guiding the movement of oil; a magnetization filter portion located inside the guide duct portion and collecting metal powder included in the oil by being magnetized in a magnetic field; a moving magnet portion located on the outside of the guide duct portion and for forming the magnetic field magnetizing the magnetization filter portion; and a driving portion for moving the moving magnet portion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil filtration apparatus,

The present invention relates to an oil filtration apparatus and a control method thereof, and more particularly, to an oil filtration apparatus and an oil filtration apparatus capable of alternately performing an operation for easily removing metal powder contained in oil and a cleaning operation without stopping the mechanical equipment And a control method thereof.

Generally, the oil filtering apparatus filters out impurities such as sludge, carbon, dust, and metal powder contained in the oil, thereby maintaining the oiliness of the high-purity oil. In addition, moisture contained in the oil is removed to ensure the stability of the device.

Conventionally, when the metal powder contained in the oil is removed, the filter is clogged when the metal powder is accumulated in the filter above the set value, and the mechanical equipment is stopped to replace the filter. Therefore, there is a need for improvement.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2014-0118576 (titled, Oil Filter and Oil Filtration Apparatus Including It, published on October 10, 2014).

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a method and an apparatus for removing metal powder contained in oil, And a control method thereof.

The oil filtering apparatus according to the present invention comprises: a guide conduit portion for guiding the movement of oil; a magnetization filter portion which is located inside the guide conduit portion and is magnetized in the magnetic field to collect the metal powder contained in the oil; And includes a moving magnet portion for forming a magnetic field for magnetizing the magnetization filter portion and a driving portion for moving the moving magnet portion.

The guide conduit portion includes a guide conduit body made of a material that is not magnetized in the magnetic field to guide the movement of the oil, an oil supply conduit connected to the guide conduit body and supplying oil to the inside of the guide conduit body, And an oil discharge pipe connected to the guide pipe body in a direction to discharge the oil to the outside of the guide pipe body.

The control unit may further include a differential pressure measuring unit connected to the oil supply pipe and the oil discharge pipe to measure the pressure difference of the oil and a control unit for operating the driving unit based on the measured value of the differential pressure measuring unit.

In addition, the guide duct portion, the magnetization filter portion, the moving magnet portion, the driving portion and the differential pressure measuring portion form one filter module, and a plurality of filter modules are preferably installed in parallel.

Preferably, the control unit controls the normal operation and the cleaning operation of the filter module based on the measured value of the differential pressure measurement unit.

The guide conduit portion is connected to the guide conduit body and connected to the guide conduit body in a direction opposite to the cleaning conduit conduit for supplying the cleaning solution to the inside of the guide conduit body and discharging the cleaning solution to the outside of the guide conduit body And a washing and discharging pipe line for discharging the washing water.

In addition, a valve is provided in the conduit connected to the oil supply pipe and the oil discharge pipe to control the movement of the oil passing through the guide pipe body, and a valve is also provided in the conduit connected to the cleaning pipe It is desirable to control the movement of the wash solution.

The present invention further includes an air supply pipe connected to the guide pipe body and supplying pressurized air to the inside of the guide pipe body, and an air control valve installed in the air supply pipe to control the movement of the pressurized air.

The magnetizing filter unit is further provided with a filter member which is located inside the guide conduit and is magnetized by the magnetic field generated by the moving magnet to collect the metal powder contained in the oil, A first partition member which uniformly distributes the magnetic force lines from one side to the filter member and a second partition member which is located inside the guide passage portion together with the first partition member and uniformly distributes magnetic force lines from the other side of the filter member toward the filter member .

The filter member preferably includes a stainless steel material magnetized in a magnetic field, and preferably includes a ball or mesh shape.

It is preferable that the first partition member and the second partition member have a hole through which the oil passes and include a material magnetized in the magnetic field.

The moving magnet portion includes a first magnet portion that is formed in a shape that surrounds the outer circumferential surface of the guide duct portion and forms a magnetic field toward the magnetization filter portion and a second magnet portion that is spaced apart from the first magnet portion to surround the outer circumferential surface of the guide duct portion, And a yoke member including a second magnet portion forming a magnetic field and a magnetizable material connecting the first magnet portion and the second magnet portion.

It is preferable that a plurality of permanent magnets are provided along the circumferential direction of the guide channel portion in the first magnet portion and the second magnet portion.

The driving unit may include a pair of driving bodies located on both sides of the yoke member, and a rod member extending upward from the driving body and connected to the yoke member and moving the moving magnet unit up and down along the guide channel portion.

The control method of the oil filtration apparatus according to the present invention is characterized in that: the moving magnet section magnetizes the magnetization filter section located inside the guide conduit section and the metal powder contained in the oil passing through the guide conduit section is collected in the magnetization filter section; A step of determining whether or not a pressure difference of the oil is greater than a predetermined value by receiving the measured value of the differential pressure measuring unit for measuring the difference between the supply pressure and the discharge pressure, A cleaning step of operating the driving part in the control part to move the moving magnet part in a direction away from the magnetizing filter part and supplying the cleaning solution instead of the oil to the inside of the guide tube part by supplying the pressurized air to the inside of the guide path part after the completion of the cleaning step After the air supplying step and the air supplying step are completed, the driving unit is operated to move the moving magnet unit to the magnetizing filter unit See the position of the main sikimyeo characterized in that it comprises a re-filtration step for supplying oil back to the inner guide conduit portion.

It is also preferable that the cleaning solution supplied in the cleaning step is moved along the guide channel portion in a direction opposite to the movement path of the oil moved along the guide channel portion.

In addition, in the air supply step, the pressurized air is preferably moved along the guide channel portion in a direction opposite to the movement path of the oil moved along the guide channel portion.

The oil filtration apparatus and the control method thereof according to the present invention can remove the metal powder contained in the oil in the magnetization filter unit magnetized by the moving magnet unit, thereby improving the cleanliness of the oil.

Further, in the present invention, when the magnetizing filter unit is washed, the magnetizing filter unit is cleaned by supplying the cleaning solution in a state where the magnetizing filter unit is not magnetized by moving the moving magnet unit, so that the metal powder It is possible to shorten the working time by alternately performing the operation of easily removing and the cleaning operation.

1 is a cross-sectional view schematically showing a state in which an oil filtering apparatus according to an embodiment of the present invention filters oil.
2 is a cross-sectional view schematically showing a state in which a cleaning solution is supplied to an oil filtering apparatus according to an embodiment of the present invention.
3 is a cross-sectional view schematically showing a state in which pressurized air is supplied to an oil filtering apparatus according to an embodiment of the present invention.
4 is a circuit diagram schematically illustrating a state where the first filter module according to an embodiment of the present invention is operated in a filtering step and the second filter module is stopped.
5 is a circuit diagram schematically illustrating a state in which the first filter module according to an embodiment of the present invention is operated as a filtering step and the second filter module is operated as a washing step.
6 is a circuit diagram schematically illustrating a state in which the first filter module according to an embodiment of the present invention is operated as a filtering step and the second filter module is operated as an air supplying step.
7 is a circuit diagram schematically illustrating a state in which the first filter module according to an embodiment of the present invention is operated as a washing step and the second filter module is operated as a filtering step.
8 is a block diagram of an oil filtration apparatus according to an embodiment of the present invention.
9 is a flowchart of a method for controlling an oil filtering apparatus according to an embodiment of the present invention.

Hereinafter, an oil filtering apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

Further, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a cross-sectional view schematically showing a state in which an oil filtering apparatus according to an embodiment of the present invention is filtering oil. FIG. 2 is a view showing a state in which a washing solution is supplied to an oil filtering apparatus according to an embodiment of the present invention 3 is a cross-sectional view schematically showing a state in which pressurized air is supplied to an oil filtering apparatus according to an embodiment of the present invention. FIG. 4 is a cross- 5 is a schematic view of a first filter module according to an embodiment of the present invention operated in a filtration step and a second filter module is operated in a filtration step, FIG. 6 is a circuit diagram schematically illustrating a state in which the first filter module is operated as a filtering step and the second filter module is operated as an air supplying step; 7 is a circuit diagram schematically illustrating a state in which a first filter module according to an embodiment of the present invention is operated as a cleaning step and a second filter module is operated as a filtering step, FIG. 2 is a block diagram of an oil filtering apparatus according to an embodiment of the present invention.

1, 4 and 8, the oil filtering apparatus 1 according to the embodiment of the present invention includes a guide duct portion 10, a magnetization filter portion 20, a moving magnet portion 30, A driving unit 40, a differential pressure measuring unit 50, and a controller 60. The oil 130 used in the wind turbine generator is supplied to the machine including the turbine and rotated at a high speed, so that the metallic powder, which is the abrasion metal, is continuously contained inside the oil 130. If the metal powder contained in the oil 130 is higher than the reference value, the metal powder contained in the oil 130 is removed using the oil filtration apparatus 1 because it is a cause of failure of the mechanical equipment.

The guide conduit section 10 may be formed in various shapes within a technical idea having a conduit for guiding the movement of the oil 130, the cleaning solution 135, and the pressurized air 140. The guide duct portion 10 according to one embodiment includes a guide pipe body 11, a cap member 12, a support member 13, an oil supply pipe passage 14, an oil discharge pipe passage 15, And a cleaning discharge path 17.

The guide channel body 11 guides the movement of the oil 130 and is formed into a material which is not magnetized in the magnetic field. The guide channel body 11 according to one embodiment is formed in a cylindrical shape and made of a high-quality nickel steel material such as STS 316 which is excellent in corrosion resistance and is not magnetized and has no magnetic property. The guide pipe body 11 extends in the vertical direction and the oil 130 is moved upward along the guide pipe body 11 and the cleaning solution 135 and the pressurized air 140 pass through the guide pipe body 11 And then moved downward.

The upper open portion of the guide duct body 11 is shielded by the cap member 12 and the lower side of the guide duct body 11 is connected to the oil discharge pipe passage 14 and the washing discharge pipe passage 17, Shaped.

The support member 13 surrounds the outside of the guide duct body 11 and is installed in a vertical direction. The support member 13 is formed in a tubular shape, and the lower side of the support member 13 is fixed to a support base 46 provided in a horizontal direction. Since the guide channel body 11 is provided inside the support member 13, the guide channel body 11 can be protected from an external impact.

The oil supply pipe passage 14 is connected to the guide pipe body 11 and may be formed in various shapes within the technical idea of supplying the oil 130 to the inside of the guide pipe body 11. The oil supply line 14 according to one embodiment extends from the lower side of the guide duct body 11 to one side (left side in FIG. 1).

The oil discharge pipe 15 is connected to the guide pipe body 11 in a direction opposite to the oil supply pipe 14 and discharges the oil 130 to the outside of the guide pipe body 11. The guide pipe body 11 and the oil supply pipe passage 14 and the oil discharge pipe passage 15 extend from the lower side of the guide pipe body 11 to the other side T "shape.

The cleaning supply pipe passage 16 is connected to the guide pipe body 11 and supplies the cleaning solution 135 to the inside of the guide pipe body 11. The cleaning supply pipe path 16 is connected to the upper side of the guide pipe body 11 and supplies the cleaning solution 135 to the upper side of the guide pipe body 11.

The cleaning discharge pipe passage 17 is connected to the guide pipe body 11 in a direction opposite to the cleaning pipe passage 16 and discharges the cleaning solution 135 to the outside of the guide pipe body 11. An air supply pipe 80 for supplying the pressurized air 140 is connected to the upper side of the guide duct body 11 so that the pressurized air 140 is supplied from the upper side to the lower side of the guide duct body 11.

The magnetization filter unit 20 is located inside the guide conduit unit 10 and can be manufactured into various shapes using various materials within the technical idea of magnetizing the metal powder contained in the oil 130 in the magnetic field have. The magnetization filter unit 20 according to one embodiment includes a filter member 22, a first partition member 24, and a second partition member 26.

The filter member 22 is located inside the guide conduit portion 10 and is magnetized by the magnetic field generated by the moving magnet portion 30 to collect the metal powder contained in the oil 130. The filter member 22 is made of a magnetizable material filled in the inside of the guide pipe body 11 and has a passage through which the oil 130 moves upward and downward of the filter member 22. The filter member 22 according to one embodiment includes a stainless steel material magnetized in a magnetic field, and includes a ball or mesh shape. The filter member 22 may be used in a shape in which a ball and a mesh shape are mixed, A porous member may be provided. Since the filter member 22 includes a ball or mesh shape, the area of contact between the ball and the oil 130 is increased so that the metal powder contained in the oil 130 can be easily attached to the surface of the magnetized filter member 22 have. The filter member 22 according to one embodiment is a porous matrix that is mounted inside the guide pipe body 11 and uses stainless steel material of 400 series which is excellent in corrosion resistance and can be easily magnetized in a magnetic field, Shape.

The first partition member 24 is located inside the guide conduit portion 10 together with the filter member 22 and has a line of magnetic force directed toward the filter member 22 from one side of the filter member 22 Uniform distribution. The first partitioning member (24) is made of a magnetizable material and has a plurality of holes communicated in the vertical direction. The first partition member 24 has a plurality of holes through which the oil 130, the cleaning solution 135 and the like are moved up and down, and is installed in a plate shape on the upper side of the filter member 22.

The second partitioning member 26 is located inside the guide duct portion 10 together with the first partitioning member 24 and is located on the other side (reference lower side in FIG. 1) of the filter member 22 toward the filter member 22 Distributes magnetic lines evenly. The second partition member 26 is also made of a magnetizable material and has a plurality of holes communicated in the vertical direction.

That is, the first partition member 24 and the second partition member 26 include a hole through which the oil 130 passes, and include a material magnetized in the magnetic field. The first partition member 24 and the second partition member 26 are mounted on the upper and lower portions of the filter member 22 to uniformly distribute magnetic force lines to the filter member 22, It is molded with 400 series of stainless steel as possible.

The moving magnet unit 30 is located outside the guide duct unit 10 and may be formed in various shapes within a technical concept of forming a magnetic field for magnetizing the magnetization filter unit 20. [ The moving magnet portion 30 according to one embodiment includes a first magnet portion 32, a second magnet portion 34, a yoke member 36, and an outer member 38.

The first magnet portion 32 is installed to surround the outer circumferential surface of the guide duct portion 10 and forms a magnetic field toward the magnetization filter portion 20. The first magnet portion 32 and the second magnet portion 34 include a neodymium permanent magnet and a neodymium permanent magnet is applied to the filter member 22 in a range of 100 to 300 mm to generate a magnetic field of 1.2 tesla or more As shown in FIG.

The second magnet portion 34 is spaced apart from the first magnet portion 32 so as to surround the outer circumferential surface of the guide duct portion 10 and forms a magnetic field toward the magnetization filter portion 20. The first magnet portion 32 and the second magnet portion 34 are provided in a ring shape surrounding the outer circumferential surface of the guide pipe body 11 and the second magnet portion 34 is provided below the first magnet portion 32 Located. A plurality of permanent magnets are provided along the circumferential direction of the guide duct portion 10 in the first magnet portion 32 and the second magnet portion 34 so that a magnetic field for magnetizing the magnetization filter portion 20 is formed.

The yoke member 36 molded from a magnetizable material connects the first magnet portion 32 and the second magnet portion 34 and is disposed between the first magnet portion 32 and the second magnet portion 34 Or to surround the outside of the first magnet portion 32 and the second magnet portion 34. The yoke member 36 including the iron core of the magnetizable carbon steel material is installed on the outer surface of the first magnet portion 32 and the second magnet portion 34 so that there is no loss of magnetic force lines to the outside of the moving magnet portion 30 And is disposed between the first magnet portion 32 and the second magnet portion 34. [

The moving magnet unit 30 is installed to move up and down along the guide pipe body 11 provided with the magnetizing filter unit 20. In the operation of filtering the oil 130, The filter member 22 is magnetized at 1.2 tesla or more to remove the metal powder as the metal abrasive particles in the oil 130. [ When the metal powder is immersed in the filter member 22 in a large amount, the moving magnet 30 is moved to the upper portion or the lower portion of the guide pipe body 11 without the magnetizing filter portion 20, The cleaning solution 135 is supplied in a state where the magnetism is removed and the filter member 22 is cleaned.

The outer member 38 is installed so as to surround the upper side, the lower side and the side surfaces of the first magnet portion 32 and the second magnet portion 34 and is connected to the driving portion 40. Accordingly, The magnet portion 30 can be moved up and down along the guide duct portion 10. [

Various types of driving devices may be used in the driving part 40 within the technical idea of moving the moving magnet part 30 along the guide path part 10. The driving unit 40 according to one embodiment includes a pair of driving bodies 42 positioned on both sides of the yoke member 36 and extending upward from the driving body 42 to be connected to the yoke member 36, And a rod member 44 for moving the moving magnet portion 30 up and down along the portion 10.

A rod member 44 is connected to both sides of the moving magnet unit 30 and a driving body 42 for moving the rod member 44 up and down is provided below the rod member 44. The driving body 42 is operated in a cylinder manner and the lower side of the driving body 42 is fixed to the supporting base 46.

The moving magnet section 30 is moved in the linear direction to move to the outside of the guide pipe body 11 facing the magnetization filter section 20 by the operation of the driving section 40, And is moved to the outside of the body 11.

The differential pressure measuring unit 50 is connected to the oil supply pipe 14 and the oil discharge pipe 15 to measure the pressure difference of the oil 130. The differential pressure measuring unit 50 is connected to both the upper and lower portions of the magnetizing filter unit 20 to measure the pressure difference to determine the cleaning time of the magnetizing filter unit 20. The control unit 60 measures the difference between the pressure of the oil 130 before passing through the magnetizing filter unit 20 and the pressure difference of the oil 130 passing through the magnetizing filter unit 20, The operator is informed that the filter unit 20 needs to be cleaned, and the magnetizing filter unit 20 is cleaned.

The control unit 60 operates the driving unit 40 based on the measured value of the differential pressure measuring unit 50 and controls the normal operation and the cleaning operation of the filter module 70.

The filter module 70 is formed by bundling the guide duct portion 10, the magnetizing filter portion 20, the moving magnet portion 30, the driving portion 40 and the differential pressure measuring portion 50 into one module. 70 are installed in parallel so that the filtering operation of the oil 130 can be continuously performed. When two filter modules 70 are connected in parallel, the filter module 70 consists of a first filter module 72 and a second filter module 74. The differential pressure measuring unit 50 includes a first differential pressure measuring unit 52 provided in the first filter module 72 and a second differential pressure measuring unit 54 installed in the second filter module 74. [

The air supply pipe path 80 is connected to the upper side of the guide pipe body 11 and supplies the pressurized air 140 to the inside of the guide pipe body 11. The air supply line 80 is connected to the tank member 88 in which the pressurized air 140 is stored and can receive the pressurized air 140. The pressurized air 140 is supplied to the air supply line 80 by using a separate compression pump 140).

The air control valve 82 is installed in the air supply line 80 to control the movement of the pressurized air 140. The air control valve 82 according to one embodiment includes a first valve 84 installed in an air supply line 80 connected to the first filter module 72 to control the movement of the pressurized air 140, And a second valve 86 installed in the air supply line 80 connected to the filter module 74 to control the movement of the pressurized air 140.

A valve is provided in a conduit connected to the oil supply conduit 14 and the oil discharge conduit 15 to control the movement of the oil 130 passing through the guide conduit body 11, A valve is also provided in the conduit connected to the guide tube 17 to control the movement of the cleaning solution 135 passing through the guide tube body 11.

The oil supply valve 90 for controlling the supply of the oil 130 moves the oil 130 supplied to the first filter module 72 And a second inlet valve 94 for controlling the movement of the oil 130 supplied to the second filter module 74. [

The oil drain valve 100 for controlling the discharge of the oil 130 includes a first outlet valve 102 for controlling the movement of the oil 130 discharged from the first filter module 72, And a second outlet valve (104) for controlling the movement of the oil (130) discharged from the first oil passage (74).

The cleaning valve 110 for controlling the movement of the cleaning solution 135 supplied to the filter module 70 is provided with a first cleaning inlet valve 131 for controlling the movement of the cleaning solution 135 supplied to the first filter module 72, And a second cleaning inlet valve 114 for controlling the movement of the cleaning solution 135 supplied to the second filter module 74.

A first cleaning outlet valve 116 for controlling the movement of the cleaning solution 135 discharged from the first filter module 72 and a second cleaning outlet valve 116 for controlling the movement of the cleaning solution 135 discharged from the second filter module 74 A second cleaning outlet valve 118 is installed in the pipeline connecting the waste solution reservoir 125 and the filter module 70.

The cleaning solution 135 is stored in the cleaning reservoir 120 and the cleaning solution 135 is supplied to the filter module 70 by the operation of the supply pump 122 and the cleaning valve 110 or the like. The waste solution reservoir 125 is supplied with the cleaning solution 135 that has washed the filter module 70 and the pressurized air 140 that dries the filter module 70.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an operation state of an oil filtering apparatus 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1, the oil 130 supplied to the lower side of the guide duct body 11 through the oil supply pipe 14 is moved upward along the guide pipe body 11, 20). The metal powder contained in the oil 130 adheres to the surface of the magnetizing filter unit 20 and the oil 130 from which the metal powder has been removed is moved to the outside of the guide duct unit 10 through the oil discharge pipe 15 do. For the magnetization of the magnetization filter unit 20, the moving magnet unit 30 is stopped at a position facing the magnetization filter unit 20. [

As shown in FIG. 2, when the metal powder in the magnetizing filter unit 20 is equal to or higher than the set value, the supply of the oil 130 is cut off and the cleaning solution 135 is supplied through the cleaning supply pipe passage 16. The cleaning solution 135 is moved from the upper side to the lower side of the guide duct body 11 and is discharged to the outside of the guide duct portion 10 through the cleaning discharge pipe passage 17. The cleaning solution 135 passes through the magnetizing filter portion 20 and is moved to the outside of the guide conduit portion 10 together with the metal powder present on the surface of the magnetizing filter portion 20.

The moving magnet section 30 is moved to the lower side of the magnetization filter section 20 so that the magnetic field of the moving magnet section 30 is shifted to the magnetization of the magnetizing filter section 20 Do not influence.

3, when the cleaning of the magnetizing filter unit 20 by the cleaning solution 135 is completed, the supply of the cleaning solution 135 is cut off and the pressurized air 140 is supplied to the guide channel unit 10 Respectively. The pressurized air 140 moves from the upper side to the lower side of the guide channel body 11 and moves the cleaning solution 135 inside the guide channel body 11 including the magnetization filter unit 20 to the guide channel body 11, As shown in Fig. Therefore, when the oil 130 is filtered again, the cleaning solution 135 can be prevented from being mixed with the oil 130.

Hereinafter, a control method when the oil filtering apparatus 1 according to an embodiment of the present invention is installed in parallel will be described in detail with reference to the accompanying drawings.

9 is a flowchart of a method of controlling an oil filtering apparatus 1 according to an embodiment of the present invention.

The control method of the oil filtration apparatus 1 according to the embodiment of the present invention is such that the moving magnet unit 30 is disposed on the side of the guide conduit unit 10 as shown in FIGS. 1, 4, 8, The metal powder included in the oil 130 that magnetizes the magnetization filter unit 20 located inside the guide pipe unit 10 and passes through the guide pipe unit 10 has a filtration step of collecting the metal powder in the magnetization filter unit 20. [

The oil 130 is supplied to the first filter module 72 under the control of the controller 60 and the operation of the second filter module 74 is stopped. The part where the color of each valve is black is the state where the flow path of the valve is blocked, and the part where the color of each valve is whitened is the state that the flow path of the valve is opened. The first filter module 72 filters the oil 130 and operates the oil supply valve 90 and the first inlet valve 92 and the second outlet valve 92 in a state in which the operation of the second filter module 74 is stopped 104 and the oil discharge valve 100 only allow passage of the oil 130 by opening the channel.

The control unit 60 receives the measurement value of the differential pressure measurement unit 50 that measures the difference between the supply pressure and the discharge pressure of the oil 130 and determines whether or not a pressure difference of the oil 130 occurs (S20). ≪ RTI ID = 0.0 >

The measured values of the first and second differential pressure measurement units 52 and 54 are transmitted to the control unit 60. The control unit 60 controls the first differential pressure measurement unit 52 and the second differential pressure measurement unit 54 And controls the operations of the first filter module 72 and the second filter module 74. The first filter module 72 and the second filter module 74 are operated by the first filter module 72 and the second filter module 74, respectively.

When the pressure difference between the oil 130 and the first filter module 72 and the second filter module 74 is greater than a preset value, the controller 60 operates the driving unit 40 to move the moving magnet 30 And a cleaning step of supplying the cleaning solution 135 instead of the oil 130 to the inside of the guide duct part 10 by moving the magnetization filter part 20 in a direction away from the magnetization filter part 20. [

As shown in FIGS. 2, 5, 8, and 9, when the value measured by the second differential pressure measuring unit 54 is equal to or larger than a predetermined value, or when the second filter module 74 needs to be cleaned , The cleaning valve 110 and the second cleaning inlet valve 114 are opened to supply the cleaning solution 135 to the second filter module 74. The cleaning solution 135 is discharged to the waste solution reservoir 125 through the second cleaning outlet valve 118 after cleaning the second filter module 74.

The cleaning solution 135 supplied in the cleaning step S30 is moved along the guide duct portion 10 in the direction opposite to the movement path of the oil 130 moved along the guide duct portion 10. [ In one embodiment, the oil 130 is moved from the lower side to the upper side of the guide channel portion 10, and the cleaning solution 135 is moved from the upper side to the lower side of the guide channel portion 10. The washing solution 135 passing through the guide duct portion 10 and the magnetizing filter portion 20 is moved downward together with the foreign substance including the metal powder and discharged to the outside of the guide duct portion 10 easily have.

And an air supply step of supplying pressurized air 140 to the inside of the guide duct part 10 after completion of the cleaning step. (S40)

3, 6, 8, and 9, the second filter module 74 is supplied with pressurized air 140 in place of the cleaning solution 135, And the solution 135 is discharged to the outside of the second filter module 74.

The pressurized air 140 supplied in the air supply step S40 is moved along the guide duct portion 10 in a direction opposite to the movement path of the oil 130 moving along the guide duct portion 10. [ The oil 130 is moved from the lower side to the upper side of the guide duct portion 10 and the pressurized air 140 is moved from the upper side to the lower side of the guide duct portion 10 in one embodiment. The pressurized air 140 passing through the guide duct portion 10 and the magnetizing filter portion 20 is moved downward together with the cleaning solution 135 remaining in the guide duct portion 10 and the magnetization filter portion 20 The operation of discharging to the outside of the guide duct portion 10 can be easily performed.

The pressurized air 140 stored in the tank member 88 is moved along the air supply line 80 to the second filter module 74 and is supplied to the second filter module 74 together with the remaining cleaning solution 135. [ And is then transferred to the waste solution storage tank 125. [

As shown in FIGS. 1 and 7 to 9, after the completion of the air supplying step, the driving unit 40 is operated to move the moving magnet unit 30 to a position facing the magnetizing filter unit 20, And a re-filtration step of supplying the oil 130 again to the inside of the oil separator 10. (S50)

The cleaning solution 135 is supplied to the first filter module 72 through the second filter module 74 which has been cleaned and dried to remove the solvent from the magnetization filter part 20, A cleaning operation is performed.

The first filter module 72 and the second filter module 74 are connected in parallel so that the filter module 70 can be cleaned and operated continuously without stopping the mechanical equipment so that the performance of filtering the oil 130 is improved And the cleaning of the magnetization filter unit 20 is automatically performed, thereby reducing the maintenance cost.

As described above, according to the present invention, the metal powder contained in the oil 130 is removed from the magnetization filter unit 20 magnetized by the moving magnet unit 30, so that cleanliness of the oil 130 can be enhanced. When the magnetizing filter unit 20 is cleaned, the moving magnet unit 30 is moved to supply the cleaning solution 135 in a state in which the magnetizing filter unit 20 is not magnetized to remove the magnetizing filter unit 20 It is possible to shorten the working time by alternately performing the operation of easily removing the metal powder contained in the oil 130 and the cleaning operation without stopping the mechanical equipment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. will be. Accordingly, the true scope of the present invention should be determined by the following claims.

1: Oil filtration device
[0001] The present invention relates to a guide pipe member, and more particularly, to a guide pipe member,
20: Magnetization filter unit 22: Filter member 24: First partition member 26: Second partition member
30: moving magnet section 32: first magnet section 34: second magnet section 36: yoke member 38: outer member
40: driving part 42: driving body 44: rod member 46: supporting base
50: differential pressure measuring unit 52: first differential pressure measuring unit 54: second differential pressure measuring unit
60: control unit 70: filter module 72: first filter module 74: second filter module
80: air supply line 82: air control valve 84: first valve 86: second valve 88: tank member
A second inlet valve, a second outlet valve, a second outlet valve, and a second outlet valve, wherein the first outlet valve is connected to the first inlet valve, Inlet valve 116: first cleaning outlet valve 118: second cleaning outlet valve
120: cleaning tank 122: supply pump 125: waste solution reservoir 130: oil 135: cleaning solution 140: pressurized air
S10: Filtration Step S20: Detecting Need for Cleaning S30: Cleaning Step S40: Air Supply Step S50: Re-Filtration Step

Claims (17)

A guide conduit portion for guiding the movement of the oil;
A magnetization filter portion located inside the guide conduit portion and magnetized in the magnetic field to collect the metal powder contained in the oil;
A moving magnet portion located outside the guide duct portion and forming a magnetic field for magnetizing the magnetization filter portion; And
And a driving unit for moving the moving magnet unit.
The method according to claim 1,
Wherein the guide conduit portion comprises: a guide conduit body made of a material that guides the movement of oil and is not magnetized in a magnetic field;
An oil supply pipe connected to the guide conduit body and supplying oil to the inside of the guide conduit body; And
And an oil discharge pipe connected to the guide pipe body in a direction opposite to the oil supply pipe and discharging oil to the outside of the guide pipe body.
3. The method of claim 2,
A differential pressure measuring unit connected to the oil supply pipe and the oil discharge pipe to measure a pressure difference of the oil; And
And a control unit for operating the driving unit based on the measured value of the differential pressure measuring unit.
The method of claim 3,
Wherein the guide duct portion, the magnetization filter portion, the moving magnet portion, the driving portion, and the differential pressure measuring portion form one filter module, and a plurality of the filter modules are installed in parallel.
5. The method of claim 4,
Wherein the control unit controls the normal operation and the cleaning operation of the filter module based on the measurement value of the differential pressure measurement unit.
3. The method of claim 2,
The guide conduit portion includes a cleaning supply pipe connected to the guide conduit body and supplying the cleaning solution to the inside of the guide conduit body; And
Further comprising a cleaning discharge pipe connected to the guide conduit body in a direction opposite to the cleaning supply pipe path and discharging the cleaning solution to the outside of the guide pipe body.
The method according to claim 6,
Wherein a valve is provided in the conduit connected to the oil supply conduit and the oil drain conduit to control the movement of the oil passing through the conduit conduit body,
Wherein a valve is also provided in the conduit connected to the cleaning supply pipe and the cleaning discharge pipe so as to control the movement of the cleaning solution passing through the guide pipe body.
The method according to claim 6,
An air supply pipe connected to the guide duct body and supplying pressurized air to the inside of the guide duct body; And
Further comprising: an air control valve installed at the air supply line to control the movement of the pressurized air.
The method according to claim 1,
Wherein the magnetization filter unit includes: a filter member which is located inside the guide conduit and is magnetized by a magnetic field generated by the moving magnet to collect metal powder contained in the oil;
A first partition member located inside the guide conduit portion together with the filter member and uniformly distributing magnetic force lines from one side of the filter member to the filter member; And
And a second partition member located inside the guide passage portion together with the first partition member and uniformly distributing magnetic force lines from the other side of the filter member toward the filter member.
10. The method of claim 9,
Wherein the filter member comprises a stainless steel material magnetized in a magnetic field and includes a ball or mesh shape.
10. The method of claim 9,
Wherein the first partition member and the second partition member include a material through which the oil passes, the material being magnetized in a magnetic field.
The method according to claim 1,
Wherein the moving magnet unit includes a first magnet unit installed to surround the outer circumferential surface of the guide duct part and forming a magnetic field toward the magnetization filter unit;
A second magnet part spaced apart from the first magnet part to surround the outer circumferential surface of the guide conduit part and forming a magnetic field toward the magnetization filter part; And
And a yoke member connecting the first magnet portion and the second magnet portion and including a magnetizable material.
13. The method of claim 12,
Wherein a plurality of permanent magnets are provided in the first magnet portion and the second magnet portion along the circumferential direction of the guide conduit portion.
13. The method of claim 12,
The driving unit may include: a pair of driving bodies positioned on both sides of the yoke member; And
And a rod member extending upward from the driving body to be connected to the yoke member and moving the moving magnet part up and down along the guide channel part.
The magnetizing filter portion magnetizing the magnetizing filter portion located inside the guide channel portion of the moving magnet portion and collecting the metal powder contained in the oil passing through the guide channel portion into the magnetizing filter portion;
A washing necessity sensing step of receiving a measured value of a differential pressure measuring unit for measuring a difference between a supply pressure of the oil and a discharge pressure of the oil and determining whether a pressure difference of the oil is greater than a set value;
A cleaning step of operating the driving part in the control part to move the moving magnet part in a direction away from the magnetizing filter part when the oil pressure difference is greater than the set value and supplying the cleaning solution instead of oil to the inside of the guide channel part;
An air supply step of supplying pressurized air to the inside of the guide duct part after completion of the cleaning step; And
And a re-filtration step of operating the drive unit after the completion of the air supply step to move the moving magnet unit to a position facing the magnetization filter unit, and supplying oil to the inside of the guide channel unit again. A method of controlling a filtration device.
16. The method of claim 15,
Wherein the cleaning solution supplied in the cleaning step is moved along the guide conduit part in a direction opposite to the movement path of the oil moved along the guide conduit part.
16. The method of claim 15,
Wherein the pressurized air in the air supply step is moved along the guide conduit part in a direction opposite to the movement path of the oil moved along the guide conduit part.

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