CN112505303A - Testing device for simulating quality fault of lubricating oil on line and using method thereof - Google Patents
Testing device for simulating quality fault of lubricating oil on line and using method thereof Download PDFInfo
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- CN112505303A CN112505303A CN202011393276.2A CN202011393276A CN112505303A CN 112505303 A CN112505303 A CN 112505303A CN 202011393276 A CN202011393276 A CN 202011393276A CN 112505303 A CN112505303 A CN 112505303A
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 106
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000003921 oil Substances 0.000 claims abstract description 185
- 239000002923 metal particle Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 17
- 230000032683 aging Effects 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000004088 simulation Methods 0.000 claims description 35
- 238000005485 electric heating Methods 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 229910052755 nonmetal Inorganic materials 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 13
- 238000003745 diagnosis Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 230000006866 deterioration Effects 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract description 2
- 230000009545 invasion Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 15
- 230000001050 lubricating effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010700 blended lubricating oil Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- -1 oxides Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- 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
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
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Abstract
The invention discloses a test device for simulating quality faults of lubricating oil on line and a use method thereof. The invention has the following beneficial effects: the fault of aging and deterioration of the oil liquid caused by long-term work or water mixing can be identified; the failure of the oil tank due to respiration or pipeline sealing can be identified; the sudden invasion of metal particles and external pollution particles generated by the abrasion of the friction pair can be identified; the system can be ensured to normally run for a long time under the condition of lubricating oil pollution; the complex fault of the lubricating oil can be detected.
Description
Technical Field
The invention relates to a test device, in particular to a test device for simulating quality faults of lubricating oil on line and a using method thereof.
Background
Lubricating oil is widely applied to various mechanical equipment, plays roles in lubrication, cooling, cleaning, sealing and rust prevention, and has severe working conditions, such as high temperature, high pressure, poor sealing performance or no sealing, mechanical part abrasion and the like, due to some lubricating oil. This causes the deterioration, water emulsification, incorporation of impurities such as metal particles, oxides, sludge precipitates, etc., and the contamination and deterioration cause the change of the physical and chemical properties of the lubricating oil, resulting in the deterioration of the lubricating effect. In practical application, monitoring the viscosity, water content, metal granularity and nonmetal granularity of lubricating oil and giving an alarm in time are necessary to ensure the reliable operation of mechanical equipment, prolong the service life and reduce the occurrence of major accidents.
The existing oil quality monitoring has two modes of on-line real-time monitoring and off-line analysis and measurement, and the on-line real-time monitoring is generally applied to critical equipment which has severe working environment, short lubricating oil replacement period and easy failure of a lubricated object, such as a high-speed diesel engine, a high-power steam turbine and the like; the off-line analysis and determination can be applied to the detection of the quality of the lubricating oil in industry, and can also be used in other industries such as food, medicine and the like, and the two industries respectively have the following advantages and disadvantages:
1. on-line real-time supervision can each parameter of real-time supervision lubricating oil, simple structure, and the response is fast, can in time feed back the problem that lubricating oil appears, convenient operation, nevertheless need additionally install the pipeline that is used for the test under some environment.
2. Off-line analysis and measurement are easy to maintain, extra pipelines do not need to be installed in a lubricating system, sampling and analysis are needed firstly, operation is complex, and the return of a measurement result has time lag, so that the method is not suitable for real-time monitoring.
According to the analysis, for the high-power and high-speed rotating gas turbine, online real-time monitoring is more suitable for being installed on a corresponding lubricating pipeline for a long time, on one hand, the physical and chemical properties of the lubricating oil can be known in real time by monitoring the viscosity, the water content and the non-metal granularity of the lubricating oil, and the lubricating oil is replaced on time according to the monitoring result; on the other hand, the metal granularity in the monitoring lubricating oil can effectively reflect the surface wear and fatigue state of the mechanical part, and the mechanical part is overhauled or replaced in time. The existing online lubricating oil monitoring system has few simulated fault types and a narrow application range, for example, in the article of application of an engine oil iron particle content and viscosity sensor in a diesel engine protection instrument, the iron particle sensor and the viscosity sensor can be used for effectively simulating and monitoring the lubricating oil quality and mechanical wear faults, but the system can not detect the specific reasons of the deterioration of the lubricating oil, and the simulated lubricating oil failure faults in the article are few, so that the change of the lubricating oil quality can not be comprehensively analyzed. And the traditional lubricating oil fault simulation method has the following defects:
1. impurities such as metal particles, water, non-metal particles and the like are directly put into the oil tank, cannot be fully mixed into oil, and cannot truly reflect the pollution degree of the lubricating oil.
2. Impurities are directly doped into a real unit, and permanent damage to unit components is easily caused.
3. The simulation fault types are few, the detection method of the sensor is single, and multiple faults cannot be simulated simultaneously.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to realize online real-time monitoring without installing additional pipelines and how to detect the specific reasons of the deterioration of the lubricating oil and comprehensively analyze the change of the quality of the lubricating oil.
In order to solve the technical problems, the technical scheme of the invention is to provide a test device for simulating the quality fault of lubricating oil on line, which comprises an oil tank, wherein an oil adding port and an oil discharging port are arranged on the oil tank.
Preferably, the lubricating oil viscosity sensor and the water content sensor are both arranged at the bottom of the oil tank.
Preferably, the driving mechanism comprises a motor and a reduction gear box which are arranged on the outer side of the oil tank, the driving end of the motor is connected with one end of the reduction gear box, and the other end of the reduction gear box penetrates through the outer wall of the oil tank to enter the oil tank and is connected with the stirring blades.
Preferably, one end of the oil tank is sequentially connected with the first adjustable electric valve, the granularity detection unit, the oil pump, the second adjustable electric valve, the flowmeter and the other end of the oil tank through pipelines.
Preferably, the particle size detection unit is provided with an optical particle size sensor and a metal particle size sensor.
The use method of the test device for simulating the quality fault of the lubricating oil on line is characterized by comprising an oil aging fault simulation method, and comprises the following steps:
a. cleaning an oil tank, and injecting aged lubricating oil into the oil tank;
b. starting an electric heating pipe, and heating the oil to 38-42 ℃;
c. opening the first adjustable electric valve and the second adjustable electric valve, starting the oil pump, adjusting the oil pump to work under a rated working condition, and identifying an oil aging fault by a matched fault diagnosis system through test data of a lubricating oil viscosity sensor, a water content sensor, an optical granularity sensor and a metal granularity sensor;
d. and (5) stopping the electric heating pipe and the oil pump to finish the oil aging fault simulation test.
The use method of the test device for simulating the quality fault of the lubricating oil on line is characterized by comprising an oil watering fault simulation method, wherein the oil watering fault simulation method comprises the following steps:
a. cleaning the oil tank, and injecting water-doped lubricating oil into the oil tank;
b. starting an electric heating pipe, and heating the oil to 38-42 ℃;
c. opening the first adjustable electric valve and the second adjustable electric valve, starting the oil pump, adjusting the oil pump to work under a rated working condition, and identifying an oil aging fault by a matched fault diagnosis system through test data of a lubricating oil viscosity sensor, a water content sensor, an optical granularity sensor and a metal granularity sensor;
d. and (5) stopping the electric heating pipe and the oil pump to finish the oil water mixing fault simulation test.
The use method of the test device for simulating the quality fault of the lubricating oil on line is characterized by comprising a simulation method for simulating the non-metal particle size of the oil doped with the lubricating oil, wherein the simulation method for simulating the non-metal particle size of the oil doped with the lubricating oil comprises the following steps:
a. cleaning an oil tank, and injecting lubricating oil doped with non-metal particles into the oil tank;
b. starting an electric heating pipe, and heating the oil to 38-42 ℃;
c. starting a motor to fully stir the lubricating oil in the oil tank;
d. opening the first adjustable electric valve and the second adjustable electric valve, starting the oil pump, adjusting the oil pump to work under a rated working condition, and identifying the fault that the oil is doped with the nonmetal particles through the test data of the lubricating oil viscosity sensor, the water content sensor, the optical particle size sensor and the metal particle size sensor by the matched fault diagnosis system;
e. and (5) stopping the electric heating pipe and the oil pump to finish the simulation test of the non-metal particle size doped in the oil.
The use method of the test device for simulating the quality fault of the lubricating oil on line is characterized by comprising a simulation method of the metal particle size doped with the oil, wherein the simulation method of the metal particle size doped with the oil comprises the following steps:
a. cleaning an oil tank, and injecting lubricating oil doped with metal particles into the oil tank;
b. starting an electric heating pipe, and heating the oil to 38-42 ℃;
c. starting a motor to fully stir the lubricating oil in the oil tank;
d. opening the first adjustable electric valve and the second adjustable electric valve, starting the oil pump, adjusting the oil pump to work under a rated working condition, and identifying the fault that the oil is doped with the metal granularity by the matched fault diagnosis system through the test data of the lubricating oil viscosity sensor, the water content sensor, the optical granularity sensor and the metal granularity sensor;
e. and (5) stopping the electric heating pipe and the oil pump to finish the simulation test of the metal particle size doped in the oil liquid.
According to the test device for simulating the quality faults of the lubricating oil on line, faults such as aging and deterioration of the lubricating oil, watering of the lubricating oil, pollution of nonmetallic particles of the lubricating oil, abrasion of a mechanical system and the like are simulated by replacing the lubricating oil with different pollution types in the oil tank; the method and the standard for diagnosing the quality faults of the lubricating oil are formed by monitoring the physical and chemical parameter characteristics of the lubricating oil under various typical faults on line through a viscosity sensor, a water content sensor, an optical granularity sensor and an electromagnetic metal abrasive particle sensor which are arranged in a lubricating oil circulating system.
Compared with the prior art, the invention has the following beneficial effects:
1. the lubricating oil viscosity change fault can be simulated, the fault of aging and deterioration of oil caused by long-term work or water mixing can be identified through monitoring the viscosity of the lubricating oil in real time, and mechanical abrasion caused by reduction of lubricating effect of the lubricating oil is avoided.
2. Can simulate lubricating oil and mix the water trouble, through the real-time supervision to lubricating oil water content, can discern the oil tank because of breathing action or pipeline seal inefficacy, the fluid water pollution that leads to is revealed to the cooler, in time overhauls lubricating system's sealing performance.
3. Can simulate lubricating oil particle pollution trouble, through the real-time supervision to granularity content and metal particle size content in the lubricating oil, can discern because of the vice wearing and tearing of friction produce metal particle and external pollution granule invade suddenly, estimate mechanical equipment life, prevent to cause major accident because of equipment serious friction.
4. The lubricating oil circulation power device adopts a single-screw pump which has higher reliability and lower requirement on a transport medium. The system can be ensured to normally run for a long time under the condition of lubricating oil pollution.
5. The stirring impeller is arranged at the oil tank, so that water, solid impurities and the like mixed with lubricating oil can be uniformly distributed in the lubricating oil, and the authenticity of a detection signal is ensured.
6. The oil quality analysis sensor can be used for simulating various faults of the lubricating oil at the same time, and the complex faults of the lubricating oil can be detected through four different oil quality analysis sensors.
Drawings
FIG. 1 is a schematic diagram of a testing apparatus for on-line simulation of oil quality failure.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Example 1
The invention provides a test device for simulating quality faults of lubricating oil on line, which comprises an oil tank 1, wherein an oil adding port 16 is arranged at the top of the oil tank 1, an oil discharging port 17 is arranged at the bottom of the oil tank 1, and one end of the oil tank 1 is sequentially connected with a first adjustable electric valve 9, a granularity detection unit 11, an oil pump 14, a second adjustable electric valve 15, a flow meter 10 and the other end of the oil tank 1 through pipelines.
The lubricating oil viscosity sensor 6 and the water content sensor 7 are both arranged at the bottom of the oil tank 1, the optical granularity sensor 12 and the metal granularity sensor 13 are both arranged on the granularity detection unit 11, the granularity sensor requires that the detected lubricating oil must flow, and strict requirements are provided for the flow and pressure of the lubricating oil at the installation position, and the granularity detection unit 11 is used for controlling the flow and pressure of the lubricating oil, so that the two granularity sensors can detect the granularity of the lubricating oil under the optimal working condition; motor 2 and reduction gear 3 are installed at the top in the 1 outside of oil tank, and reduction gear 3's one end is connected to motor 2's drive end, and reduction gear 3's the other end passes in oil tank 1's outer wall gets into oil tank 1 to be connected with stirring vane 4, the effect do: the motor 2 and the reduction gear box 3 drive the stirring blades 4 to stir the oil in the oil tank 1, so that particles can be fully circulated in a pipeline, and the particles are prevented from precipitating when the fault of the particles doped in the simulated lubricating oil occurs; the first adjustable electric valve 9 is arranged on a pipeline between the oil tank 1 and the granularity detection unit 11, the second adjustable electric valve 15 is arranged on a pipeline between the flowmeter 10 and the oil pump 14, and the first adjustable electric valve 9 and the second adjustable electric valve 15 control the operation condition of the system by changing the opening degree; temperature sensor 5 is fixed on oil tank 1, and temperature sensor 5 one end is passed oil tank 1 outer wall and is located in oil tank 1 for detect the temperature in the oil tank 1, and electrothermal tube 8 is located in oil tank 1, and temperature sensor 5, electrothermal tube 8 are used for controlling and monitoring lubricating oil temperature.
The oil pump 14 and the motor 2 are respectively controlled by two frequency converters, and the frequency converters are controlled by a PLC (programmable logic controller); the switches of the first adjustable electric valve 9, the second adjustable electric valve 15 and the electric heating pipe 8 are all directly controlled by a PLC; the PLC is connected with the electric heating pipe 8, the first adjustable electric valve 9, the second adjustable electric valve 15 and the frequency converter, and the frequency converter is connected with the oil pump 14 and the motor 2 through cables.
In this embodiment, the oil pump 14 is a single screw pump.
In each case, the specific steps for using the invention are as follows:
1. the oil aging fault simulation method comprises the following steps: a. cleaning the oil tank 1, and injecting aged No. 68 lubricating oil into the oil tank 1; b. starting an electric heating pipe 8, and heating the oil to 40 ℃; c. opening the first adjustable electric valve 9 and the second adjustable electric valve 15, starting the oil pump 14, adjusting the oil pump 14 to work under a rated working condition, and identifying an oil aging fault by a matched fault diagnosis system through test data of the lubricating oil viscosity sensor 6, the water content sensor 7, the optical granularity sensor 12 and the metal granularity sensor 13; d. the electric heating tube 8 and the oil pump 14 are shut down, and the oil aging fault simulation test is completed;
2. the method for simulating the fault of oil water mixing comprises the following steps: a. cleaning the oil tank 1, and injecting No. 68 water-blended lubricating oil into the oil tank 1; b. starting an electric heating pipe 8, and heating the oil to 40 ℃; c. opening the first adjustable electric valve 9 and the second adjustable electric valve 15, starting the oil pump 14, adjusting the oil pump 14 to work under a rated working condition, and identifying an oil aging fault by a matched fault diagnosis system through test data of the lubricating oil viscosity sensor 6, the water content sensor 7, the optical granularity sensor 12 and the metal granularity sensor 13; d. the electric heating tube 8 and the oil pump 14 are stopped to complete the simulation test of the oil water mixing fault;
3. the simulation method of the oil doping nonmetal granularity comprises the following steps: a. cleaning the oil tank 1, and injecting No. 68 lubricating oil doped with nonmetallic particles with the diameter of 20-200 microns into the oil tank 1; b. starting an electric heating pipe 8, and heating the oil to 40 ℃; c. starting the motor 2 to fully stir the lubricating oil in the oil tank 1; d. opening the first adjustable electric valve 9 and the second adjustable electric valve 15, starting the oil pump 14, adjusting the oil pump 14 to work under a rated working condition, and identifying the fault that the oil is doped with the nonmetal particles by the matched fault diagnosis system through the test data of the lubricating oil viscosity sensor 6, the water content sensor 7, the optical particle size sensor 12 and the metal particle size sensor 13; e. stopping the electric heating tube 8 and the oil pump 14 to finish the simulation test of the non-metal particle size doped with the oil;
4. the oil liquid doping metal granularity simulation method comprises the following steps: a. cleaning the oil tank 1, and injecting No. 68 lubricating oil doped with metal particles with the diameter of 20-100 mu m into the oil tank 1; b. starting an electric heating pipe 8, and heating the oil to 40 ℃; c. starting the motor 2 to fully stir the lubricating oil in the oil tank 1; d. opening the first adjustable electric valve 9 and the second adjustable electric valve 15, starting the oil pump 14, adjusting the oil pump 14 to work under a rated working condition, and identifying the fault of the metal granularity doped in the oil liquid by the matched fault diagnosis system through the test data of the lubricating oil viscosity sensor 6, the water content sensor 7, the optical granularity sensor 12 and the metal granularity sensor 13; e. and (5) stopping the electric heating pipe 8 and the oil pump 14 to finish the simulation test of the metal particle size doped in the oil liquid.
And the above faults are injected simultaneously, so that the simulation diagnosis of the compound fault of the lubricating oil can be realized.
Wherein, the flow of the lubricating oil is as follows: 108-112L/min; the pressure of the lubricating oil is: 0.9 to 1.1 MPa.
The rated operation of the oil pump 14 is as follows: the rated power of the driving motor is 4KW, and the rotating speed is 2800 r/min; at this time, the working conditions of the screw pump are as follows: the flow rate is 110L/min, and the pressure is 1 MPa.
Example 2
In this embodiment, the temperature of the heating oil is 38 ℃ in each case.
The rest is the same as in example 1.
Example 3
In the embodiment, the heating oil temperature is 42 ℃ under all conditions.
The rest is the same as in example 1.
Claims (9)
1. The utility model provides a test device of on-line simulation lubricating oil quality trouble, includes oil tank (1), is equipped with on oil tank (1) and adds hydraulic fluid port (16) and oil drain port (17), its characterized in that, oil tank (1) in be equipped with stirring vane (4), stirring vane (4) are connected with actuating mechanism, still are equipped with temperature sensor (5), lubricating oil viscosity sensor (6), water content sensor (7), electrothermal tube (8) in oil tank (1), the both ends of oil tank (1) are passed through the pipeline switch-on, series connection has first adjustable motorised valve (9), granularity detecting element (11), oil pump (14), the adjustable motorised valve of second (15), flowmeter (10) on the pipeline.
2. The test device for simulating the quality fault of the lubricating oil on line as claimed in claim 1, wherein the lubricating oil viscosity sensor (6) and the water content sensor (7) are arranged at the bottom of the oil tank (1).
3. The testing device for simulating the quality fault of the lubricating oil on line according to claim 1, wherein the driving mechanism comprises a motor (2) and a reduction gear box (3) which are arranged outside the oil tank (1), the driving end of the motor (2) is connected with one end of the reduction gear box (3), and the other end of the reduction gear box (3) penetrates through the outer wall of the oil tank (1) to enter the oil tank (1) and is connected with the stirring blade (4).
4. The testing device for simulating the quality fault of the lubricating oil on line as claimed in claim 1, wherein one end of the oil tank (1) is sequentially connected with the first adjustable electric valve (9), the granularity detection unit (11), the oil pump (14), the second adjustable electric valve (15), the flowmeter (10) and the other end of the oil tank (1) through pipelines.
5. An on-line simulation test device for oil quality faults according to any one of claims 1 to 4, wherein the granularity detection unit (11) is provided with an optical granularity sensor (12) and a metal granularity sensor (13).
6. The use method of the test device for simulating the quality fault of the lubricating oil on line according to claim 5 is characterized by comprising an oil aging fault simulation method, and comprises the following steps:
a. cleaning the oil tank (1), and injecting aged lubricating oil into the oil tank (1);
b. starting an electric heating tube (8) and heating the oil to 38-42 ℃;
c. opening the first adjustable electric valve (9) and the second adjustable electric valve (15), starting the oil pump (14), adjusting the oil pump (14) to work under a rated working condition, and identifying the oil aging fault by the matched fault diagnosis system through the test data of the lubricating oil viscosity sensor (6), the water content sensor (7), the optical particle size sensor (12) and the metal particle size sensor (13);
d. and (5) stopping the electric heating pipe (8) and the oil pump (14) to finish the oil aging fault simulation test.
7. The use method of the test device for simulating the quality fault of the lubricating oil on line according to claim 5 is characterized by comprising an oil watering fault simulation method, wherein the oil watering fault simulation method comprises the following steps:
a. cleaning the oil tank (1), and injecting water-doped lubricating oil into the oil tank (1);
b. starting an electric heating tube (8) and heating the oil to 38-42 ℃;
c. opening the first adjustable electric valve (9) and the second adjustable electric valve (15), starting the oil pump (14), adjusting the oil pump (14) to work under a rated working condition, and identifying the oil aging fault by the matched fault diagnosis system through the test data of the lubricating oil viscosity sensor (6), the water content sensor (7), the optical particle size sensor (12) and the metal particle size sensor (13);
d. and (5) stopping the electric heating pipe (8) and the oil pump (14) to finish the oil water mixing fault simulation test.
8. The use method of the test device for simulating the quality fault of the lubricating oil on line according to claim 5 is characterized by comprising a simulation method of the non-metal particle size mixed with the oil, wherein the simulation method of the non-metal particle size mixed with the oil comprises the following steps:
a. cleaning an oil tank (1), and injecting lubricating oil doped with non-metal particles into the oil tank (1);
b. starting an electric heating tube (8) and heating the oil to 38-42 ℃;
c. starting the motor (2) to fully stir the lubricating oil in the oil tank (1);
d. opening the first adjustable electric valve (9) and the second adjustable electric valve (15), starting the oil pump (14), adjusting the oil pump (14) to work under a rated working condition, and identifying the fault of the non-metal granularity doped in the oil liquid by the matched fault diagnosis system through the test data of the lubricating oil viscosity sensor (6), the water content sensor (7), the optical granularity sensor (12) and the metal granularity sensor (13);
e. and (5) stopping the electric heating tube (8) and the oil pump (14) to finish the simulation test of the non-metal particle size doped in the oil liquid.
9. The use method of the test device for simulating the quality fault of the lubricating oil on line according to claim 5 is characterized by comprising a simulation method of the oil liquid doped metal particle size, wherein the simulation method of the oil liquid doped metal particle size comprises the following steps:
a. cleaning the oil tank (1), and injecting lubricating oil doped with metal particles into the oil tank (1);
b. starting an electric heating tube (8) and heating the oil to 38-42 ℃;
c. starting the motor (2) to fully stir the lubricating oil in the oil tank (1);
d. opening the first adjustable electric valve (9) and the second adjustable electric valve (15), starting the oil pump (14), adjusting the oil pump (14) to work under a rated working condition, and identifying the fault of metal granularity doped in oil liquid by a matched fault diagnosis system through test data of a lubricating oil viscosity sensor (6), a water content sensor (7), an optical granularity sensor (12) and a metal granularity sensor (13);
e. and (5) stopping the electric heating pipe (8) and the oil pump (14) to finish the simulation test of the metal particle size doped in the oil liquid.
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| US20210254519A1 (en) * | 2020-02-14 | 2021-08-19 | Cummins Inc. | Systems and methods for reliably detecting wear metal particles in lubrication systems to avoid progressive damage |
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| CN113625596A (en) * | 2021-08-03 | 2021-11-09 | 中国航发湖南动力机械研究所 | Semi-physical simulation system for health management system of aircraft engine |
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| CN116380449B (en) * | 2023-03-03 | 2023-12-29 | 中国航空发动机研究院 | Transmission system fault simulation equipment and system |
| CN116577088A (en) * | 2023-07-12 | 2023-08-11 | 天津联维乙烯工程有限公司 | Lubricating oil system detection device and lubricating oil system operation fault information generation method |
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