CN111238881B - Online monitoring system for in-use paint film tendency index of lubricating and hydraulic system - Google Patents

Abstract

A set of lubricating and hydraulic system in-use paint film propensity index online monitoring system, including controller, drum, membrane filter, solvent storage tank, waste liquid storage tank and paint film propensity index tester, membrane filter through pipeline and The first quantitative pump is connected with the oil circulation pipeline of the oil-using equipment, the solvent storage barrel is connected with the membrane filter through the pipeline and the second quantitative pump, and the waste liquid storage barrel is connected with the membrane filter through the waste liquid pipeline. There is a roll of filter membrane, the drum is driven to rotate by a stepping motor, and the roll of filter membrane is transferred from the right to the left, and the controller is electrically connected with the first quantitative pump, the second quantitative pump and the stepping motor, respectively. The membrane filter and the paint film propensity index tester are respectively provided with a first linear motor and a second linear motor, and the first linear motor and the second linear motor are respectively electrically connected with the controller. The present invention can automatically sample and detect lubrication on-line in real time. The tendency index of paint film solves the problems of long period of traditional manual inspection and insufficient representativeness of inspection results.

Description

A set of lubricating and hydraulic system in-use paint film tendency index online monitoring system

technical field

The invention relates to the field of oil product testing, in particular to a set of on-line monitoring system for in-use paint film tendency index of lubricating and hydraulic systems.

Background technique

The lubricating oil paint film is a polar high molecular hydrocarbon polymer produced by the oxidation of lubricating oil, which will cause the lubricating parts to reduce the gap, increase the friction, lead to the failure of the valve core bonding operation, and block the filter and cause problems such as poor equipment lubrication. The Film Tendency Index is used to characterize the tendency of a lubricating oil to form a paint film during use. The existing paint film index test instrument manufacturers mainly include FLUITEC in the United States, and the product is MPC paint film index tester (divided into a separate pretreatment device and a colorimeter); the existing paint film inspection methods mainly include ASTMD7843-16 Standard Test Method for Measurement of Lubricant Generated Insoluble Color Bodies in In-Service Turbine Oils Using Membrance Patch Colorimetry and GBT34580-2017 Method for the Determination of Lubricant Generated Insoluble Color Bodies in In-Service Turbine Oils Using Membrance Patch Colorimetry and GBT34580-2017 Method for the Determination of Insoluble Color Bodies in Turbine Oils-Membrane Colorimetry; The main test process is manual sampling from the equipment and then sending it to the laboratory , in the laboratory, take 50mL of the sample and mix it with 50mL of solvent and filter it with a microporous membrane. After filtration, the filter membrane retains the colored substances in the sample to form a sample membrane, and then uses a colorimeter (spectrophotometer) to measure the membrane. The chromaticity of the flakes was used to calculate the film propensity index of the sample. The existing sampling, processing, and testing process can only be manually sampled for sample processing and testing. This testing process has the following drawbacks: (1) Manual sampling and testing may result in insufficient sampling; laboratory and laboratory testing process, the testing period is generally about 3 to 5 days); (3) it cannot be installed in oil-using equipment to achieve online testing; (4) it cannot continuously test the paint film tendency index of the oil in use; (5) the test data is manually transmitted to the user. Oil equipment management personnel cannot transmit to the designated equipment monitoring system in real time; it cannot meet the requirements of automatic continuous sampling and processing, continuous testing, and real-time data remote transmission of equipment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a set of on-line monitoring system for the in-use paint film tendency index of lubricating and hydraulic systems, so as to solve the problems raised in the above-mentioned technical background.

The purpose of this invention is to realize through the following technical solutions:

A set of lubricating and hydraulic system in-use paint film propensity index online monitoring system, including controller, drum, membrane filter, solvent storage tank, waste liquid storage tank and paint film propensity index tester. The first quantitative pump is connected with the oil circulation pipeline of the oil-using equipment, the solvent storage barrel is connected with the membrane filter through the pipeline and the second quantitative pump, and the waste liquid storage barrel is connected with the membrane filter through the waste liquid pipeline. There is a packaged filter membrane, the drum is driven to rotate by a stepping motor, and the packaged filter membrane is transferred from the right to the left, and the controller is respectively electrically connected with the first quantitative pump, the second quantitative pump and the stepping motor.

Further, the filter membrane filter and the paint film propensity index tester are respectively provided with a first linear motor and a second linear motor, and the first linear motor and the second linear motor are respectively electrically connected to the controller.

Further, a vacuum pump is provided on the waste liquid storage barrel, and the vacuum pump is electrically connected with the controller.

Further, the controller is used to control the first quantitative pump to draw quantitative oil samples from the oil circulation pipeline of the oil-using equipment to the membrane filter.

Further, the controller is used to control the second quantitative pump to extract the quantitative solvent from the solvent storage tank to the membrane filter.

Further, the controller is used to control the rotation of the stepper motor, thereby controlling the drum to transfer the packaged filter membrane from the right to the left of the drum.

Further, the controller is used to control the first linear motor, thereby controlling the separation and combination of the filter components in the membrane filter.

Further, the controller is used to control the second linear motor, thereby controlling the paint film propensity index tester to move up and down.

Further, the controller is used to control the opening and closing of the vacuum pump.

Further, the controller is used for summarizing and transmitting the detection results of the paint film index tester to the monitoring terminal.

The beneficial effects of the present invention are: the present invention is connected with the oil circulation pipeline of the oil-using equipment through the pipeline, and can continuously and real-timely take samples from the oil-using equipment oil circulation pipeline on-line, which saves the sampling time and also avoids the insufficient representativeness of manual sampling. The disadvantage is that the test starts automatically after the sampling is completed, which shortens the oil sample testing period.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure, 1-controller, 2-drum, 3-membrane filter, 4-solvent storage bucket, 5-waste liquid storage bucket, 6-paint film tendency index tester, 7-first quantitative pump, 8 - Oil circulation pipeline of oil equipment, 9- Second quantitative pump, 10- Waste liquid pipeline, 11- Roll filter membrane, 12- Stepper motor, 13- First linear motor, 14- Second linear motor, 15 - Vacuum pump, 16 - Monitoring terminal.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.

It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic way, so the drawings only show the components related to the present invention rather than the number, shape and number of components in actual implementation. For dimension drawing, the type, quantity and proportion of each component can be changed at will in actual implementation, and the component layout may also be more complicated.

Example:

A set of lubricating and hydraulic system in-use paint film propensity index online monitoring system, please refer to Figure-1, including controller 1, drum 2, membrane filter 3, solvent storage tank 4, waste liquid storage tank 5 and The paint film tendency index tester 6, the membrane filter 3 is connected to the oil circulation pipeline 8 of the oil-using equipment through the pipeline and the first quantitative pump 7, and the solvent storage tank 4 is connected to the membrane filter through the pipeline and the second quantitative pump 9. 3 is connected, the waste liquid storage tank 5 is connected to the membrane filter 3 through the waste liquid pipeline 10, the drum 2 is provided with a rolled filter membrane 11, the drum 2 is driven to rotate by the stepping motor 12, and the rolled membrane 11 is rotated from the right. The side is transferred to the left, and the controller 1 is electrically connected with the first quantitative pump 7, the second quantitative pump 9 and the stepping motor respectively.

Further, the membrane filter 3 and the paint film propensity index tester 6 are respectively provided with a first linear motor 13 and a second linear motor 14, and the first linear motor 13 and the second linear motor 14 are respectively electrically connected to the controller 1. .

Further, a vacuum pump 15 is provided on the waste liquid storage tank 5 , and the vacuum pump 15 is electrically connected with the controller 1 .

Further, the controller 1 is used to control the first quantitative pump 7 to draw quantitative oil samples from the oil circulation pipeline 8 of the oil-using equipment to the membrane filter 3 .

Further, the controller 1 is used to control the second quantitative pump 9 to extract the quantitative solvent from the solvent storage tank 4 to the membrane filter 3 .

Further, the controller 1 is used to control the rotation of the stepping motor 12 , and then control the drum 2 to transfer the packaged filter membrane 11 from the right side of the drum 2 to the left side.

Further, the controller 1 is used to control the first linear motor 13 to control the separation and combination of the filter components in the membrane filter 3 .

Further, the controller 1 is used to control the second linear motor 14, thereby controlling the paint film propensity index tester to move up and down.

Further, the controller 1 is used to control the opening and closing of the vacuum pump 15 .

Further, the controller 1 is used for summarizing and transmitting the detection results of the paint film index tester 3 to the monitoring terminal 16 .

Specifically, the controller 1 controls the first quantitative pump 7 to extract 50 ml of sample oil from the oil circulation pipeline 8 of the oil-using equipment and injects it into the membrane filter 3 , and then controls the second quantitative pump 9 to extract from the solvent storage tank 4 50ml of solvent is put into the membrane filter 3, the drum 2 is driven by the stepping motor 12, and the membrane filter 11 is transferred to the membrane filter 3. The membrane filter 3 starts to mix the solution and passes through the membrane filter 11. The mixed solution is filtered. During the solution mixing process, the controller 1 controls the first linear motor, and then controls the separation and combination of the filter components in the membrane filter. After the mixed solution is completely filtered, the second quantitative pump 9 starts again and flows to the filter. 50ml of solvent is injected into the membrane filter 3 for secondary filtration. After the solvent filtration is completed, the filter membrane section after the filtration of the sample oil is obtained. The paint film propensity index tester 6 performs the film chromaticity (paint film propensity index) test. During the transmission process, the controller 1 controls the second linear motor 14, and then controls the up and down movements of the paint film index tester 6, so as to filter the filter. The film is sent to the detection part of the paint film index tester 6. After the detection is completed, the controller 1 summarizes the detection results of the paint film index tester 6 and transmits it to the monitoring terminal 16. During this process, the filtered waste liquid is discarded. The liquid pipeline 10 is drawn into the solvent storage tank 5 by the vacuum pump 15 for collection, so as to prevent the environment from being polluted.

To sum up, the present invention communicates with the oil circulation pipeline 8 of the oil-using equipment through a pipeline, and can continuously and real-timely take samples from the oil-circulating pipeline 8 of the oil-using equipment online, which saves the sampling time and also avoids the disadvantage of insufficient representativeness of manual sampling. Automatically start the test after sampling, shortening the oil sample testing period.

The above-mentioned embodiments only represent specific embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention.

Claims (3)

1. An on-line paint film tendency index monitoring system for a lubricating and hydraulic system comprises a controller (1), a roller (2), a filter membrane filter (3), a solvent storage barrel (4), a waste liquid storage barrel (5) and a paint film tendency index tester (6), and is characterized in that the filter membrane filter (3) is connected with an oil circulation pipeline (8) of oil consumption equipment through a pipeline and a first dosing pump (7), the solvent storage barrel (4) is connected with the filter membrane filter (3) through a pipeline and a second dosing pump (9), the waste liquid storage barrel (5) is connected with the filter membrane filter (3) through a waste liquid pipeline (10), a coiled filter membrane (11) is arranged on the roller (2), the roller (2) is driven to rotate through a stepping motor (12) and conveys the coiled filter membrane (11) to the left from the right, and the controller (1) is respectively connected with the first dosing pump (7), The second fixed displacement pump (9) is electrically connected with the stepping motor;

the filter membrane filter (3) and the paint film tendency index tester (6) are respectively provided with a first linear motor (13) and a second linear motor (14), and the first linear motor (13) and the second linear motor (14) are respectively electrically connected with the controller (1); a vacuum pump (15) is arranged on the waste liquid storage barrel (5), and the vacuum pump (15) is electrically connected with the controller (1); the controller (1) is used for controlling a first fixed displacement pump (7) to pump a fixed displacement oil sample from an oil circulation pipeline (8) of the oil consumption equipment into the filter membrane filter (3); the controller (1) is used for controlling the second quantitative pump (9) to pump quantitative solvent from the solvent storage barrel (4) to the filter membrane filter (3); the controller (1) is used for controlling the stepping motor (12) to rotate, and further controlling the roller (2) to convey the wound filter membrane (11) from the right side to the left side of the roller (2); the controller (1) is used for controlling the first linear motor (13) so as to control the separation and combination of the filtering components in the filter membrane filter (3); the controller (1) is used for controlling the second linear motor (14) so as to control the paint film tendency index tester (6) to move up and down;

specifically, the controller (1) controls a first quantitative pump (7) to extract 50ml of sample oil from an oil circulation pipeline (8) of oil equipment and inject the sample oil into a filter membrane filter (3), then controls a second quantitative pump (9) to extract 50ml of solvent from a solvent storage barrel (4) and inject the solvent into the filter membrane filter (3), a roller (2) is driven by a stepping motor (12) to convey a packaged filter membrane (11) to the filter membrane filter (3), the filter membrane filter (3) is started to start mixed solution and filter the mixed solution through the packaged filter membrane (11), in the solution mixing process, the controller (1) controls a first linear motor to further control separation and combination of filter parts in the filter membrane filter, after the mixed solution is completely filtered, the second quantitative pump (9) is started again and injects 50ml of solvent into the filter membrane filter (3) for secondary filtration, after the solvent filtration is completed, the filter membrane section after sample oil filtration treatment is obtained, the roller (2) is driven by the stepping motor (12), the treated filter membrane section is conveyed to the paint film tendency index tester (6) to be subjected to paint film tendency index test, the controller (1) controls the second linear motor (14) in the conveying process, the vertical motion of the paint film tendency index tester (6) is further controlled, so that the filter membrane is conveyed to the detection part of the paint film tendency index tester (6), after the detection is finished, the controller (1) collects the detection result of the paint film tendency index tester (6) and conveys the detection result to the monitoring terminal (16), and in the process, the filtered waste liquid is extracted to the waste liquid storage barrel (5) through the waste liquid pipeline (10) by the vacuum pump (15) to be collected, so that the environment pollution is prevented.

2. The set of on-line monitoring systems for the tendency of a lubricating and hydraulic system to use a paint film according to claim 1, characterized in that the controller (1) is adapted to control the opening and closing of the vacuum pump (15).

3. The set of on-line monitoring system for the paint film tendency index of the lubricating and hydraulic system according to claim 1, characterized in that the controller (1) is used for summarizing and transmitting the detection result of the paint film index tester (6) to the monitoring terminal (16).

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