WO2007129462A1 - 導電体濃度計測装置及び磁性体濃度計測装置 - Google Patents
導電体濃度計測装置及び磁性体濃度計測装置 Download PDFInfo
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- WO2007129462A1 WO2007129462A1 PCT/JP2007/000461 JP2007000461W WO2007129462A1 WO 2007129462 A1 WO2007129462 A1 WO 2007129462A1 JP 2007000461 W JP2007000461 W JP 2007000461W WO 2007129462 A1 WO2007129462 A1 WO 2007129462A1
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- fluid
- reservoir
- flow path
- detection unit
- concentration
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
- G01N27/08—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid which is flowing continuously
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel
- G01N33/2858—Oils, i.e. hydrocarbon liquids specific substances contained in the oil or fuel metal particles
Definitions
- the present invention relates to a conductor concentration measuring device and a magnetic substance concentration measuring device.
- the concentration of the magnetic material is measured by manually sampling the lubricating oil or drain oil, or in the vicinity of the flow path through which the lubricating oil or drain oil flows.
- a magnetic substance concentration measuring device is installed to measure the magnetic substance concentration.
- an LC oscillation circuit for actual measurement in which the first coil is arranged near the drain oil flow path, and a position not affected by the magnetic substance of the drain oil.
- a correction LC generator circuit with a second coil is provided, and the concentration of the magnetic substance is detected by utilizing the difference between the oscillation frequency of the actual LC generator circuit and the oscillation frequency of the correction LC generator circuit.
- a magnetic field applying means and a magnetic measuring means including a magnetic sensor of a superconducting quantum interference element are provided in the vicinity of the flow path through which the drain oil flows, and only the magnetic field of the magnetized magnetic component is detected. For example, the following are listed.
- Patent Document 1 Japanese Patent Laid-Open No. 2 085 _ 8 3 8 9 7
- Patent Document 2 Japanese Patent Laid-Open No. 10-2 6 8 0 1 3 Disclosure of the invention
- the present invention has been made in view of such circumstances, and provides a conductor concentration measuring device that continuously and accurately measures the concentration of a conductor of a fluid, and also determines the concentration of a magnetic substance of a fluid.
- An object of the present invention is to provide a magnetic substance concentration measuring apparatus that continuously and accurately measures.
- the present invention relates to a flow path through which a fluid containing a conductor flows, or to a reservoir part in which a fluid containing a conductor is accumulated, a detection unit including a fluid lead-in / out means and a detection means,
- the present invention relates to a conductor concentration measuring apparatus configured to lead in and out a fluid by means of a fluid lead-in / out means and to detect a concentration of the conductor through a detecting means.
- the detection unit is connected to a reservoir for storing fluid in the flow path so as to prevent air from entering.
- the reservoir section includes a first reservoir section that stores an old fluid and a second reservoir section that receives and stores a new fluid, and the detection section is a second reservoir section. It is preferable to connect to.
- the reservoir is formed in the flow path via a closing means.
- the fluid is introduced into and introduced into the detection unit by the fluid introduction / extraction means, the introduction and introduction of the fluid in the detection unit is facilitated, and the flow path is different from the flow path. Since the concentration of the fluid conductor is detected by the detector, the concentration of the fluid conductor can be measured continuously and accurately, and as a result, the abnormality of the device can be detected quickly. Also, since the deposits such as solids are eliminated by the operation of the fluid lead-in / out means, periodic air blowing and mechanical removal are unnecessary, and further generation of deposits is prevented, and fluid conduction is prevented. The body concentration can be continuously and accurately measured. Furthermore, even when the fluid has a high viscosity, the fluid can be reliably introduced and introduced at regular intervals by the fluid introduction and introduction means, so that the concentration of the conductor of the fluid can be continuously and accurately measured.
- a detection unit including a piston and a detection unit is connected to a flow path through which a fluid containing a magnetic material flows, and the detection unit guides the fluid by the piston and uses the detection unit.
- a magnetic substance concentration measuring device configured to detect the concentration of the magnetic substance through the medium.
- the detection unit is connected to a reservoir for storing fluid in the flow path so as to prevent air from entering.
- the reservoir includes a first reservoir that stores an old fluid and a second reservoir that receives and stores a new fluid, and connects the detection unit to the second reservoir. It is preferable.
- the reservoir is formed in the flow path via a closing means.
- the detection unit detects the concentration of the magnetic substance in the fluid, so the concentration of the magnetic substance in the fluid can be measured continuously and accurately, and as a result, abnormalities in the equipment can be detected quickly. it can.
- the reciprocating motion of the piston eliminates deposits such as solids, which eliminates the need for periodic air blowing and mechanical removal, prevents further deposits, Concentration can be measured continuously and accurately. Furthermore, even if the fluid is highly viscous, the fluid can be reliably introduced and introduced at regular intervals by the reciprocating motion of the piston, so that the concentration of the magnetic substance in the fluid can be measured continuously and accurately.
- the detection unit when the detection unit is connected to a reservoir for collecting fluid in the flow path so as to prevent air from being mixed, air is mixed into the detection unit by a fluid lead-in / out means such as a piston. Since the fluid is led in and out, the fluid can be easily replaced at the detection section, and the concentration of the conductor (or magnetic material) of the fluid can be measured continuously and accurately. In addition, since the detector is connected to the reservoir, it is possible to prevent air from being mixed even when the equipment is shaken.
- the reservoir includes a first reservoir for storing old fluid and a second reservoir for receiving and storing new fluid, and the detection unit is connected to the second reservoir. Then, since a new fluid is introduced into the detection unit by means of fluid extraction / introduction such as a piston, the old fluid and the new fluid are prevented from being mixed, and the concentration of the conductor (or magnetic material) of the fluid is continuously accurate. It can measure well.
- the concentration of the fluid conductor (or magnetic material) is continuously and accurately measured by the detection unit having the fluid lead-in / out means, and the abnormality of the device is detected quickly.
- the detection unit equipped with the piston can continuously measure the concentration of the conductor (or magnetic substance) of the fluid with high accuracy, and has an excellent effect that the abnormality of the device can be detected quickly. obtain.
- FIG. 1 is a schematic diagram showing a first example of an embodiment of the present invention.
- FIG. 2 is a schematic view showing a second example of the embodiment of the present invention.
- FIG. 3 is a schematic view showing another configuration in the second example of the embodiment of the present invention.
- FIG. 4 is a schematic view showing a third example of the embodiment of the present invention.
- FIG. 5 is a schematic view showing a fourth example of the embodiment of the present invention.
- FIG. 6 is a view taken in the direction of arrows V I -V I in FIG.
- FIG. 7 is a schematic view showing a fifth example of the embodiment of the present invention.
- a conductor concentration measuring apparatus as a first example of the embodiment of the present invention will be described.
- the conductor concentration measuring apparatus of the first example is configured as a magnetic substance concentration measuring apparatus so as to measure the concentration of the magnetic substance powder from the lubricating oil containing the magnetic substance powder, and FIG. It is the schematic which shows the 1st example of an Example.
- the conductor concentration measuring apparatus of the first example is configured by connecting a detection unit 4 including a piston (fluid lead-in / out means) 2 and a detection means 3 to a flow path 1 of a pipe through which a fluid such as lubricating oil containing a conductor flows.
- a detection unit 4 including a piston (fluid lead-in / out means) 2 and a detection means 3 to a flow path 1 of a pipe through which a fluid such as lubricating oil containing a conductor flows.
- the conductor is not limited to a magnetic material such as iron, cobalt, or nickel, but may be any nonmagnetic material such as aluminum, copper, or stainless steel as long as it has conductivity.
- the fluid is not limited to lubricating oil or drain oil, and any fluid may be used as long as it contains a conductor.
- the flow path 1 of the piping is used to flow the lubricating oil into and out of a device (not shown) provided with a sliding object, and is closed so as to form a lubricating oil reservoir 5 downstream of the flow path 1.
- a branch flow path 7 arranged so as to avoid the on-off valve 6.
- the branch flow path 7 includes a branch port 8 formed on the upstream side of the reservoir 5, and A junction 9 formed on the downstream side of the on-off valve 6 is provided to allow the lubricating oil overflowing from the reservoir 5 to flow downstream.
- the sliding object is not limited to the driving piston and the driving cylinder, and any object may be used as long as it slides.
- the detection section 4 is a cylindrical detection section main body (fluid lead-in / out) that forms an opening 10 in the reservoir section 5 so as to be disposed in the flow path 1 between the on-off valve 6 and the branch port 8.
- Means) 1 with 1 A piston (fluid lead-in / out means) 2 sliding inside the detection unit main body 1 1, a drive means (not shown) for driving the piston 2, and an outer peripheral part of the detection unit main body 1 1 1
- Detecting means 1 2 of detecting means 3 signal processing circuit 13 of detecting means 3 for controlling detecting object 1 2, and measurement value display and abnormality determining device 14 connected to signal processing circuit 1 3 ing.
- the detection body 12 of the detection means 3 measures the concentration of the magnetic powder by a detection method such as a differential transformer method, but it can measure the concentration of the magnetic powder. If it is, it will not specifically limit.
- the on-off valve 6 of the flow path 1 is closed in advance with the piston 2 of the detection unit 4 pushed out, and Accumulate a certain amount of lubricating oil.
- the determination as to whether or not a predetermined amount of lubricating oil has been accumulated in the reservoir 5 may be based on the passage of a certain time, or the state where the lubricating oil overflows into the branch flow path 7 as shown in FIG. It may be detected, or other judgment means may be used.
- the lubricating oil in the reservoir 5 is introduced into the detecting unit 4 by pulling in the piston 2 of the fluid lead-in / out means, and the magnetic powder concentration of the lubricating oil is detected by the detecting body 12 of the detecting means 3 etc.
- the detection means 3 measures the output signal of the detection body 1 2 through the signal processing circuit 1 3 etc., and the output signal of the detection body 1 2 corresponds to the concentration of the magnetic substance powder in the detection section 4. Since it changes accordingly, the output signal of the detector 12 is subjected to functional processing or contrast processing using the correlation of the concentration of the magnetic powder, and the concentration of the magnetic powder is measured.
- the reciprocating motion of the piston 2 is continued to continuously measure the concentration of the magnetic powder of the lubricating oil. If the concentration of the magnetic powder exceeds a certain value, the sliding portion Assuming that the equipment equipped with a large amount of wear has reached the time for maintenance, Value display and anomaly judgment device 1 4 Notify the administrator via warning display, warning sound, warning light.
- the time interval of the reciprocating motion of the piston 2 varies depending on the viscosity of the fluid to be measured, but it is preferably performed at intervals of several seconds to several tens of seconds.
- the back and forth movement of the piston (fluid lead-in / out means) 2 facilitates the lead-in / out of the lubricating oil fluid in the detection unit 4. Therefore, the replacement of the lubricating oil in the detection unit 4 is promoted, and the concentration of the magnetic powder in the fluid is stably detected in the detection unit 4 in a path different from the flow path 1. Concentration can be measured continuously and accurately, and as a result, equipment abnormalities can be detected quickly. In addition, since abnormalities in the sliding parts of equipment are detected promptly, maintenance can be performed before serious damage is done to the equipment. Furthermore, since the concentration of the magnetic powder in the fluid is detected by the detection unit 4 in a path different from the flow path 1, it is possible to eliminate the influence of disturbances such as magnetic noise, electromagnetic wave noise, temperature change, and electrical noise. it can
- the reciprocating motion of the piston 2 eliminates solids and other deposits, eliminating the need for periodic air blowing and mechanical removal, and preventing further deposits and changes in measurement conditions.
- the concentration of magnetic powder in the fluid can be measured continuously and accurately.
- the fluid can be reliably led out at regular intervals by the reciprocating motion of the piston 2, so that the concentration of magnetic powder in the fluid can be measured continuously and accurately.
- the reciprocating motion of the piston 2 allows the air initially accumulated in the flow path 1 and the detection section 4 to be easily discharged, smoothing the movement of the fluid, and continuously and accurately adjusting the concentration of the magnetic powder of the fluid. It can be measured.
- a device such as a diesel engine is used to drive the measured value of the concentration of the magnetic powder contained in the lubricating oil, as well as the force supplying the lubricating oil with the rotational speed of the motor and the degree of fuel injection as parameters. It is also possible to adjust the supply of lubricating oil using the cylinder cylinder (cylinder liner) condition parameter. Also, by providing a means to measure the amount of drain oil and measuring the amount of drain oil together with the concentration of magnetic material, it is possible to estimate the amount of wear on the equipment, so it is possible to accurately grasp the timing of equipment maintenance. And during maintenance You can also save time and money.
- the detection unit 4 when the detection unit 4 is connected to the reservoir 5 for storing the fluid in the flow path 1 so as to prevent air from entering, the detection unit 4 is connected to the detection unit 4 by the piston 2 of the fluid lead-in / out means. Since the fluid is led in and out without mixing air into 4, the fluid can be easily replaced at the detection unit 4, and the concentration of magnetic powder in the fluid can be measured continuously and accurately. In addition, since the detector 4 is connected to the reservoir 5, the air can be prevented from being mixed even when the engine or other equipment is shaken. Furthermore, even when the fluid has a high viscosity, the fluid can be suitably led out from the fluid reservoir 5 by the reciprocating motion of the biston 2, so that the concentration of the magnetic powder in the fluid can be continuously increased. Can be measured accurately.
- the reservoir 5 when the reservoir 5 is formed in the flow path 1 via the on-off valve 6 of the closing means, the reservoir 5 is easily formed in the flow path 1, Fluid replacement in part 4 can be performed easily, and the concentration of magnetic powder in the fluid can be measured continuously and accurately.
- the fluid can be suitably introduced and introduced at regular intervals from the fluid reservoir 5 by the reciprocating motion of the piston 2 of the fluid introducing and introducing means. Can be measured continuously and accurately.
- FIG. 2 is a schematic diagram showing a second example of the embodiment of the present invention
- FIG. 3 is a schematic diagram showing another configuration in the second example of the embodiment of the present invention.
- the same reference numerals as those in FIG. 1 denote the same items.
- the conductor concentration measuring apparatus of the second example is obtained by modifying the flow path 1 of the pipe through which a fluid such as lubricating oil containing a conductor flows.
- the flow path 21 of the second example includes the first Detection unit 4 that is almost the same as the example is connected.
- the conductor is not limited to a magnetic material such as iron, cobalt, or nickel, but may be any nonmagnetic material such as aluminum, copper, or stainless steel as long as it has conductivity.
- the fluid is lubricating oil or drain oil. It is not limited to, but any material that contains a conductor is acceptable.
- the flow path 21 of the piping of the second example is for discharging lubricating oil from a device (not shown) provided with a sliding object, and downstream of the flow path 21 from the horizontal direction to the vertical direction.
- the main flow path 2 2 that is curved and extends, the on-off valve 2 3 of the closing means disposed in the vertical portion of the main flow path 2 2, and the first example so as to avoid the on-off valve 2 3
- a branch channel 2 6 arranged to form a branch port 2 4 and a junction port 25, and an extended flow extending in a horizontal direction at a predetermined length from between the on-off valve 2 3 and the branch port 2 4
- the passage 27 is provided with a small-diameter communication passage 28 connecting the end of the extended passage 27 and the horizontal portion of the main passage 22.
- the sliding object is not limited to the driving piston and the driving cylinder, and any sliding object may be used.
- the main flow path 2 2 from the branch port 2 4 to the on-off valve 2 3 of the closing means becomes a first reservoir 2 9 for accumulating old lubricant fluid
- the communication channel 28 is a second reservoir 30 that receives and accumulates new lubricating fluid.
- the branch flow path 26 allows the lubricating oil overflowing from the first reservoir 29 to flow downstream as in the first example.
- the connecting flow path 28 is arranged so that the lubricating oil flows first than the vertical portion of the main flow path 22.
- the detection section 4 is a cylindrical detection that forms an opening 10 in the second reservoir 30 so that it is arranged at the junction of the extended flow path 27 and the communication flow path 28.
- Body (fluid derivation / injection means) 1 piston (fluid derivation stage) 2 that slides inside the detection section body 1 1, drive means (not shown) for driving the piston 2, and detection section body 1
- Detecting body 3 of detecting means 3 placed on the outer periphery of 1 1 2
- signal processing circuit 1 3 of detecting means 3 for controlling detecting body 1 2
- measurement value display connected to signal processing circuit 1 3
- an abnormality determination device 14 the detection unit main body 11 of the detection unit 4 is preferably arranged so as to extend from the end of the extension flow path 27 in order to increase the reliability of fluid introduction / extraction.
- the detection body 12 of the detection means 3 is substantially the same as in the first example.
- the concentration of the magnetic powder is measured by a detection method such as an equation, but is not particularly limited as long as the concentration of the magnetic powder can be measured.
- the conductor concentration measuring apparatus of the second example has another configuration, and the other configuration has a predetermined length between the on-off valve 23 and the branch port 24 as shown in FIG.
- An extended flow path 2 7 a extending in the horizontal direction, and a small-diameter communication flow path 2 8 connecting the intermediate position of the extended flow path 2 7 a and the horizontal portion of the main flow path 2 2
- the extended flow path 2 7 a and the communication flow path 2 8 constitute a second reservoir 30 a for receiving and storing a new lubricating oil fluid.
- the detection unit 4 having another configuration has a cylindrical shape in which an opening 10 is formed in the second reservoir 30 so that the detection unit 4 is disposed upward on the end side of the extended flow path 27a.
- Detection unit body (fluid lead-in / out means) 1 1 piston (fluid lead-in / out means) 2 sliding up and down inside the detection unit main body 1 1, and drive means for driving piston 2 (not shown)
- the signal processing circuit 1 3 of the detection means 3 for controlling the detection body 1 2, and the signal processing circuit 1 3
- the measured value display and abnormality determination device 14 is provided.
- the remaining part of the other configuration has substantially the same configuration as the previous example of the second example.
- the on-off valve 2 3 of the main flow path 2 2 of the pipe is closed with the piston 2 of the detection unit 4 pushed in advance, A certain amount of lubricating oil is accumulated in the reservoir portion 29 and the second reservoir portion 30.
- the determination as to whether or not a predetermined amount of lubricating oil has been accumulated in the second reservoir 30 may be based on the passage of a certain time, or as shown in FIG. The state of overflowing may be detected, or other determination means may be used.
- the lubricating oil in the second reservoir 30 is introduced into the detection unit 4 by pulling in the piston 2 of the fluid lead-in / out means, and the magnetism of the lubricating oil is detected by the detection body 12 etc. of the detection unit 3.
- Measure body powder concentration the detection means 3 measures the output signal of the detection body 1 2 via the signal processing circuit 1 3 etc., and the output signal of the detection body 1 2 Since the signal changes according to the concentration of the magnetic powder in the detection unit 4, the output signal of the detector 1 2 is subjected to function processing or contrast processing using the correlation of the concentration of the magnetic powder. Measure the concentration of.
- the lubricating oil in the detection unit 4 is discharged (derived) to the second reservoir 30, and the deposit in the detection unit 4 is discharged.
- the lubricating oil in the detector 4 and the second reservoir 30 is replaced.
- the lubricating oil discharged from the detection unit 4 to the second reservoir 30 is discharged to the branch channel 26 via the first reservoir 29.
- the reciprocating motion of the piston 2 is continued to continuously measure the concentration of the magnetic powder of the lubricating oil. If the concentration of the magnetic powder exceeds a certain value, sliding is performed. If the equipment equipped with the parts is worn out and the time for maintenance is reached, the measured value display and abnormality determination device 14 will notify the administrator via a warning display, warning sound, and warning light. Note that the time interval of the reciprocating motion of the piston 2 varies depending on the viscosity of the fluid to be measured, but it is preferably performed at intervals of several seconds to several tens of seconds.
- the reservoir portion is a first reservoir portion that stores an old fluid. 2 9 and a second reservoir 30 for receiving and storing a new fluid, and when detecting unit 4 is connected to second reservoir 30, new lubricating oil is introduced into detecting unit 4 by piston 2. Since the fluid is introduced, the old fluid and the new fluid can be prevented from being mixed, and the concentration of the magnetic substance in the fluid can be measured continuously and accurately. In addition, since the first reservoir 29 and the second reservoir 30 together with the arrangement of the detector 4 suitably prevent air contamination into the fluid, the concentration of magnetic powder in the fluid can be continuously and Measurements can be made with extremely high accuracy. In addition, since the detector 4 is connected to the second reservoir 30, it is possible to prevent air from being mixed even when the engine or other equipment is shaken.
- the detection unit 4 is disposed above the second reservoir 30a so that the piston 2 faces downward. Accumulation of solid content (sludge) and the like can be more suitably prevented.
- FIG. 4 is a schematic view showing a third example of the embodiment of the present invention.
- the same reference numerals as those in Fig. 1 represent the same items.
- the conductor concentration measuring device of the third example is obtained by further modifying the flow path 1 of the pipe through which a fluid such as lubricating oil containing a conductor flows.
- the detector 4 is connected almost as in the example.
- the conductor is not limited to a magnetic material such as iron, cobalt, or nickel, but may be any non-magnetic material such as aluminum, copper, or stainless steel as long as it has electrical conductivity.
- the fluid is not limited to lubricating oil or drain oil, and any fluid may be used as long as it contains a conductor.
- the flow path 3 1 of the pipe of the third example discharges lubricating oil from a device (not shown) provided with a sliding object, and the downstream of the flow path 3 1 extends from the horizontal direction to the vertical direction.
- a first flow path 3 2 extending in a curved manner, an intermediate flow path 3 3 bent from the first flow path 3 2 and extending in the horizontal direction, and further bent from the intermediate flow path 3 3 in the vertical direction Second extended
- the branch channel 3 6 includes a branch port 3 7 formed at the other end of the intermediate channel 3 3 and a junction port 3 8 formed downstream of the on-off valve 3 5.
- the sliding object is not limited to the driving piston and the driving cylinder, and any sliding object may be used as long as it slides.
- the second flow path 3 4 from the middle position of the intermediate flow path 3 3 to the on-off valve 3 5 of the closing means becomes a first reservoir 3 9 for accumulating old lubricant fluid
- the first flow From the path 3 2 to the middle position of the intermediate flow path 3 3 is a second reservoir 40 for receiving and storing new lubricating oil.
- the branch flow path 36 allows the lubricating oil overflowing from the first reservoir 39 to flow downstream.
- the detection unit 4 is a cylindrical detection unit that forms an opening 10 in the second reservoir 40 so that the detection unit 4 is disposed at the junction of the intermediate flow path 3 3 and the first flow path 32.
- An abnormality determination device 14 is provided.
- the detection unit main body 11 of the detection unit 4 is preferably arranged so as to extend from the end side of the intermediate flow path 33 in order to increase the reliability of fluid introduction / extraction.
- the detection body 12 of the detection means 3 measures the concentration of the magnetic powder by a detection method such as a differential transformer method, as in the first example.
- a detection method such as a differential transformer method
- the concentration of can be measured.
- the second reservoir 40 may be extended, and the detector 4 may be disposed above the second reservoir 40.
- the on-off valve 3 5 of the pipe 3 1 is closed with the piston 2 of the detection unit 4 pushed in advance, Reservoir A certain amount of lubricating oil is accumulated in the part 39 and the second reservoir 40.
- the determination as to whether or not a predetermined amount of lubricating oil has been accumulated in the second reservoir section 40 may be based on the passage of a certain period of time. Alternatively, as shown in FIG. The state where oil overflows may be detected, or other judgment means may be used.
- the lubricating oil in the second reservoir 40 is introduced into the detection unit 4 by pulling in the piston 2 of the fluid lead-in / out means, and the magnetic property of the lubricating oil is detected by the detection body 12 of the detection unit 3 and the like.
- Measure body powder concentration the detection means 3 measures the output signal of the detection body 1 2 via the signal processing circuit 1 3 etc., and the output signal of the detection body 1 2 is the concentration of the magnetic powder in the detection section 4 Therefore, the output signal of the detector 12 is function-processed or contrast-processed using the correlation of the concentration of the magnetic powder, and the concentration of the magnetic powder is measured.
- the lubricating oil in the detection unit 4 is discharged (derived) to the second reservoir 40, and the deposit in the detection unit 4 is discharged.
- the lubricating oil in the detection unit 4 and the second reservoir 40 is replaced.
- the lubricating oil discharged from the detection unit 4 to the second reservoir 40 is discharged to the branch channel 36 via the first reservoir 39.
- the reciprocating motion of the piston 2 is continued to continuously measure the concentration of the magnetic powder of the lubricating oil. If the concentration of the magnetic powder exceeds a certain value, sliding is performed. If the equipment equipped with the parts is worn out and the time for maintenance is reached, the measured value display and abnormality determination device 14 will notify the administrator via a warning display, warning sound, and warning light. Note that the time interval of the reciprocating motion of the piston 2 varies depending on the viscosity of the fluid to be measured, but it is preferably performed at intervals of several seconds to several tens of seconds.
- substantially the same effect as the first example and the second example can be obtained. Also, it can be configured in the same way as the other configurations in the second example, An effect can also be obtained.
- the concentration of the magnetic substance of the fluid can be measured continuously and accurately.
- FIG. 1 is a schematic view showing a fourth example of the embodiment of the present invention.
- the same reference numerals as those in FIG. 1 represent the same items.
- the electric conductor concentration measuring device of the fourth example is obtained by modifying the fluid introduction / introduction means 2 and 11 for introducing and introducing a fluid such as a lubricating oil containing an electric conductor, and also deforming the flow path 1.
- a detecting section 44 comprising a rotating body (fluid lead-in / out means) 4 2 and a detecting means 4 3 is connected to a flow path 41 of a pipe through which a fluid such as lubricating oil flows.
- the conductor may be not only a magnetic material such as iron, cobalt, and nickel, but also a non-magnetic material such as aluminum, copper, and stainless steel as long as it has conductivity.
- the fluid is not limited to lubricating oil or drain oil, and any fluid may be used as long as it contains a conductor.
- the flow path 4 1 of the pipe of the fourth example is for discharging lubricating oil from a device (not shown) provided with a sliding object.
- the downstream of the flow path 4 1 is from the horizontal direction to the vertical direction.
- First flow path 45 extending in a curved manner, a measurement flow path 4 6 extending in the vertical direction from the first flow path 4 5 and having a detection portion 4 4, and before the measurement flow path 4 6 Is formed in an intermediate flow path 47 that extends in the horizontal direction by branching at a second flow path 4 8 that is further bent from the intermediate flow path 47 and extends in the vertical direction, and a second flow path 48.
- the measurement flow path 4 6 includes the on-off valve 4 9 is provided with a connection port 51 formed on the downstream side of 9, and the branch channel 50 is formed on the downstream side of the on-off valve 4 9 with the branch port 52 formed on the other end of the intermediate channel 47.
- the sliding object is not limited to the driving piston and the driving cylinder, and any sliding object can be used.
- the second flow from the middle position of the intermediate flow path 4 7 to the on-off valve 4 9 of the closing means becomes the first reservoir portion 5 4 for storing the old lubricating fluid, and the second reservoir for receiving and storing the new lubricating fluid from the first passage 45 to the measuring passage 46.
- Part 5 is 5.
- the branch channel 50 allows the lubricating oil overflowing from the first reservoir 54 to flow downstream.
- the detection unit 4 4 has a circular space detection unit body formed in the measurement flow channel 4 6.
- the rotating body 4 2 and the shaft portion 5 7 are made of a nonmagnetic material, and drive means
- a drive source that does not use electromagnetic force such as pneumatic, hydraulic, or ultrasonic motors.
- the reason why a drive source that does not use electromagnetic force is used is that if a drive source that uses electromagnetic force such as an electric motor is used, the coil is affected and the detection accuracy of the conductor concentration is lowered.
- the detection bodies 5 8 and 5 9 of the detection means 4 3 measure the concentration of the conductor powder by a detection method such as a differential transformer method, as in the first example. , Conductive It will not specifically limit if the density
- the flow rate is measured in a state where the side with the larger amount of eccentricity with respect to the axis of the rotating body 42 is positioned on the inflow side (upper side in the figure).
- the on-off valve 4 9 in the passage 4 1 is closed, and a certain amount of lubricating oil is stored in the second reservoir portion 5 5 and the first reservoir portion 5 4.
- the determination as to whether or not a predetermined amount of lubricating oil has been stored in the second reservoir 55 may be based on the passage of a certain time, or as shown in FIG. It is possible to detect a state in which overflow occurs, or to use other judgment means.
- the lubricating oil in the second reservoir 55 is moved into the detector 44 by rotating the side with the large eccentricity with respect to the shaft of the rotating body 42 to the discharge side (lower in the figure). Then, the concentration of the conductor of the lubricating oil is measured by the detection bodies 5 8 and 5 9 of the detection means 4 3.
- the detection means 4 3 measures the output signals of the detection bodies 5 8 and 5 9 via the signal processing circuit 1 3 etc., and the output signals of the detection bodies 5 8 and 5 9 are detected by the detection section 4 4.
- the output signal of the detectors 5 8 and 5 9 is function-processed or contrast-processed using the correlation of the concentration of the conductor powder. Measure.
- the lubricating oil in the detection unit 44 is discharged from the connection port 51 to the downstream side by rotating the side with the large eccentric amount with respect to the axis of the rotating body 42 to the inflow side (upper side in the figure). (Derivation) Then, the deposit in the detector 44 is discharged and the lubricating oil in the detector 44 is replaced.
- the concentration of the conductive powder of the lubricating oil is continuously measured by continuously performing the eccentric rotational motion of the rotating body 42.
- concentration of the conductive powder exceeds a certain value, Notify the administrator via the warning display, warning sound, and warning light from the measured value display and abnormality judgment device 14 that the amount of wear of the equipment with the sliding part is large and the time for maintenance is reached.
- the time interval of the rotational movement of the rotating body 42 varies depending on the viscosity of the fluid to be measured, but is preferably performed every several seconds to several tens of seconds.
- the rotating body (fluid lead-in / out means) 42 The rotational movement of the center facilitates the introduction and replacement of the lubricating oil fluid in the detection unit 44. Therefore, the replacement of the lubricating oil in the detection unit 44 is facilitated, so the concentration of the conductive powder in the fluid is reduced. Measurements can be made continuously and accurately, and as a result, device abnormalities can be detected quickly. In addition, since abnormalities in the sliding parts of equipment are detected promptly, maintenance can be carried out before seriously damaging the equipment. In addition, since the concentration of the conductive powder in the fluid is detected by the detection unit 4 4 at a position different from the flow path 4 1, the influence of disturbance such as magnetic noise, electromagnetic wave noise, temperature change, and electrical noise is eliminated. can do.
- a device such as a diesel engine is used to drive the measured value of the concentration of the conductive powder contained in the lubricating oil, as well as the force that supplies lubricating oil with the rotational speed of the motor and the degree of fuel injection as parameters. It is also possible to adjust the supply of lubricating oil using the cylinder cylinder (cylinder liner) condition parameter. Also, by providing a means for measuring the amount of drain oil and measuring the amount of drain oil together with the concentration of the conductor, it is possible to estimate the amount of wear on the equipment, so it is possible to accurately grasp the timing of equipment maintenance. In addition, maintenance time and costs can be reduced.
- the detection unit 4 4 when the detection unit 4 4 is connected to the second reservoir unit 5 5 that stores the fluid in the flow path 41 so as to prevent air from being mixed,
- the rotating body 4 2 allows the fluid to be led in and out without mixing air into the detection unit 44. Therefore, the fluid in the detection unit 44 can be easily replaced, and the concentration of the conductive powder in the fluid can be reduced. It is possible to measure continuously and accurately.
- the detection unit 44 since the detection unit 44 is connected to the second reservoir 55, the entry of air can be prevented even when the equipment such as the engine shakes.
- the fluid even when the fluid has a high viscosity, the fluid can be suitably led out at regular intervals by the eccentric rotational movement of the rotating body 42 from the second reservoir 55 of the fluid. Concentration can be measured continuously and accurately.
- the second reservoir portion 55 when the second reservoir portion 55 is formed in the channel 41 via the opening and closing valve 49 of the closing means, the second reservoir 55 is provided in the channel 41. Since the part 55 is easily formed, the fluid in the detection part 44 can be easily replaced, and the concentration of the conductor powder in the fluid can be continuously measured with high accuracy. Further, even when the fluid has a high viscosity, the fluid can be suitably led in and out at regular intervals by the rotational movement of the rotating body 42 of the fluid lead-in / out means from the second reservoir 55 of the fluid. Therefore, it is possible to continuously measure the concentration of the conductive powder.
- FIG. 7 is a schematic view showing a fifth example of the embodiment of the present invention.
- the same reference numerals as those in Fig. 1 denote the same items.
- a detection unit substantially similar to the detection unit 44 of the fifth example is provided in the flow path 1 of the pipe of the first example through which a fluid such as lubricating oil containing a conductor flows. 6 0 connected.
- the conductor is not limited to a magnetic material such as iron, cobalt, or nickel, but may be any nonmagnetic material such as aluminum, copper, or stainless steel as long as it has conductivity.
- the fluid is not limited to lubricating oil or drain oil, and any fluid may be used as long as it contains a conductor.
- the detection unit 60 is a circular space detection unit main body (fluid lead-in / out means) that forms an opening 61 in the reservoir 5 so as to be disposed in the flow path 1 between the on-off valve 6 and the branch port 8. 6 2 and shaft part (fluid lead-in / out means) penetrating in the axial direction of the circular space (vertical direction in FIG. 7) inside the detection part body 6 2 and the inside of the detection part body 6 2 are eccentric.
- the rotating body 6 4 and the shaft portion 6 3 are made of a non-magnetic material, and drive means
- a drive source that does not use electromagnetic force such as pneumatic, hydraulic, or ultrasonic motors.
- the reason why a drive source that does not use electromagnetic force is used is that if a drive source that uses electromagnetic force such as an electric motor is used, the coil is affected and the detection accuracy of the conductor concentration is lowered.
- the rotating body 6 4 when the rotating body 6 4 is rotated, as shown by the solid line in FIG. 7, when the side with the larger eccentricity with respect to the shaft is located on one side (right side in the figure), the rotating body 6 4 is detected on the right side. It faces the body 6 7 and does not face the left detection body 6 6, and the rotating body 64 rotates, and as shown by the phantom line in FIG. When it is positioned (left side in the figure), the rotating body 64 is formed so as to face the left detection body 66 and not to face the right detection body 67. Further, when the side with the large eccentricity with respect to the axis of the rotating body 64 is positioned on the opening side (left side in the figure), the introduction of fluid into the detection unit main body 62 is prevented.
- the detection bodies 6 6 and 6 7 of the detection means 65 are for measuring the concentration of the conductive powder by a detection method such as a differential transformer method, as in the first example. If it can measure the density
- the side with the large amount of eccentricity with respect to the axis of the rotating body 64 is previously positioned on the opening side (left side in FIG. 7). Close the on-off valve 6 of the flow path 1 and store a certain amount of lubricating oil in the reservoir 5.
- the determination as to whether or not a predetermined amount of lubricating oil has been accumulated in the reservoir 5 may be based on the passage of a certain time, or the state in which the lubricating oil overflows into the branch flow path 7 as shown in FIG. It may be detected or other determination means may be used.
- the lubricating oil in the reservoir 5 is introduced into the detector 60 by rotating the side with the large eccentricity with respect to the axis of the rotating body 64 to the opposite opening side (the right side in FIG. 7). Measure the concentration of the conductor of the lubricating oil using the detecting bodies 6 6 and 6 7 of the detecting means 65.
- the detection means 6 5 measures the output signals of the detection bodies 6 6 and 6 7 via the signal processing circuit 13 etc., and the output signals of the detection bodies 6 6 and 6 7 are detected by the detection section 6 0.
- the output signal of the detectors 6 6 and 6 7 is function-processed or contrast-processed using the correlation of the concentration of the magnetic powder, and the concentration of the magnetic powder is changed. Measure.
- the lubricating oil in the detector 60 is discharged to the reservoir 5 by introducing the large eccentricity with respect to the axis of the rotating body 64 to the opening side (left side in FIG. 7). Then, the deposit in the detector 60 is discharged and the lubricating oil in the detector 60 and the reservoir 5 is replaced.
- the eccentric rotational motion of the rotating body 64 is continuously measured to continuously measure the magnetic powder concentration of the lubricating oil.
- concentration of the conductive powder exceeds a certain value, Notify the administrator via the warning display, warning sound, and warning light from the measured value display and abnormality judgment device 14 that the amount of wear of the equipment with the sliding part is large and the time for maintenance is reached.
- the time interval of the eccentric rotational motion of the rotating body 64 varies depending on the viscosity of the fluid to be measured, but is preferably performed every several seconds to several tens of seconds.
- the fifth example of the embodiment includes a detection unit 60 including a rotating body (fluid lead-in / out means) 6 4 and a detection means 65, and a flow path 21 in the second example or the third example. It may be combined with the flow path 31, and in this case, substantially the same operational effects as those in the second or third example can be obtained.
- the conductor concentration measuring apparatus and the magnetic substance concentration measuring apparatus of the present invention are not limited to the above-described embodiments, and the flow path is not limited to the embodiments. Other shapes and configurations that extend in the horizontal and diagonal directions may be used as long as they have the same effect, and the fluid is not limited to lubricating oil, but other oils, aqueous solutions, water, powders, etc.
- the closing means is not limited to the on-off valve, and may be a stop channel switching structure, and other various modifications may be made without departing from the scope of the present invention. It is.
- the magnetic substance concentration measuring device of the present invention can measure the concentration of a magnetic material generated by sliding of a component
- the conductor concentration measuring device of the present invention can measure the concentration of a conductor generated by sliding of a component.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07737118A EP2015062A4 (en) | 2006-04-28 | 2007-04-26 | DEVICE FOR MEASURING THE CONCENTRATION IN CONDUCTIVE MATERIAL AND DEVICE FOR MEASURING THE CONCENTRATION IN MAGNETIC MATERIAL |
US12/297,451 US8037740B2 (en) | 2006-04-28 | 2007-04-26 | Conductive material concentration measuring device and magnetic material concentration measuring device |
KR1020087028500A KR101320912B1 (ko) | 2006-04-28 | 2007-04-26 | 도전체 농도 계측 장치 및 자성체 농도 계측 장치 |
CN2007800154826A CN101432621B (zh) | 2006-04-28 | 2007-04-26 | 导电体浓度测量装置及磁性体浓度测量装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006124883 | 2006-04-28 | ||
JP2006-124883 | 2006-04-28 |
Publications (1)
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WO2007129462A1 true WO2007129462A1 (ja) | 2007-11-15 |
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PCT/JP2007/000461 WO2007129462A1 (ja) | 2006-04-28 | 2007-04-26 | 導電体濃度計測装置及び磁性体濃度計測装置 |
Country Status (5)
Country | Link |
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US (1) | US8037740B2 (ja) |
EP (1) | EP2015062A4 (ja) |
KR (1) | KR101320912B1 (ja) |
CN (1) | CN101432621B (ja) |
WO (1) | WO2007129462A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US8659287B2 (en) | 2009-03-12 | 2014-02-25 | Ihi Corporation | Hard particle concentration detecting method |
JP5467857B2 (ja) | 2009-12-24 | 2014-04-09 | 株式会社Ihi | 粒子の濃度検出方法およびその装置 |
CN103728343B (zh) * | 2014-01-15 | 2016-04-20 | 南京工业大学 | 一种回转支承润滑脂中铁屑含量的在线检测方法及其润滑脂在线检测装置 |
US20150346181A1 (en) * | 2015-08-14 | 2015-12-03 | Caterpillar Inc. | Device and system to determine engine lubrication health |
CN108442920B (zh) * | 2018-02-08 | 2021-07-06 | 天津大学 | 垂直上升管中含水相多相流的水相电导率测量装置 |
JP7245916B2 (ja) * | 2019-08-19 | 2023-03-24 | 株式会社Ihi原動機 | 磁性体濃度計測装置 |
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JPH08201245A (ja) * | 1995-01-26 | 1996-08-09 | Kooa Kogyo Kk | 濾液測定方法およびその装置 |
JPH10268013A (ja) | 1997-03-26 | 1998-10-09 | Sumitomo Electric Ind Ltd | 磁性体濃度の検出方法及び装置 |
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DE2726370C2 (de) * | 1977-06-10 | 1981-09-24 | Basf Ag, 6700 Ludwigshafen | Meßverfahren und Meßeinrichtung zur Bestimmung der Homogenität von Magnetdispersionen |
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JPS5885314A (ja) * | 1981-11-17 | 1983-05-21 | Nissan Motor Co Ltd | エンジンオイルの劣化検知装置 |
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2007
- 2007-04-26 CN CN2007800154826A patent/CN101432621B/zh active Active
- 2007-04-26 US US12/297,451 patent/US8037740B2/en not_active Expired - Fee Related
- 2007-04-26 WO PCT/JP2007/000461 patent/WO2007129462A1/ja active Application Filing
- 2007-04-26 KR KR1020087028500A patent/KR101320912B1/ko active IP Right Grant
- 2007-04-26 EP EP07737118A patent/EP2015062A4/en not_active Withdrawn
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JPH08201245A (ja) * | 1995-01-26 | 1996-08-09 | Kooa Kogyo Kk | 濾液測定方法およびその装置 |
JPH10268013A (ja) | 1997-03-26 | 1998-10-09 | Sumitomo Electric Ind Ltd | 磁性体濃度の検出方法及び装置 |
JP2004333280A (ja) * | 2003-05-07 | 2004-11-25 | Mitsubishi Electric Corp | 濃度測定装置 |
JP2005083897A (ja) | 2003-09-09 | 2005-03-31 | Diesel United:Kk | 磁性体濃度計測装置 |
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Also Published As
Publication number | Publication date |
---|---|
KR20090015072A (ko) | 2009-02-11 |
US20090100913A1 (en) | 2009-04-23 |
EP2015062A4 (en) | 2010-04-21 |
CN101432621B (zh) | 2011-12-14 |
CN101432621A (zh) | 2009-05-13 |
US8037740B2 (en) | 2011-10-18 |
EP2015062A1 (en) | 2009-01-14 |
KR101320912B1 (ko) | 2013-10-21 |
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