CN101363464B - Oil liquid pollution monitoring, cleaning and filtrating apparatus for embedded hydraulic power system - Google Patents
Oil liquid pollution monitoring, cleaning and filtrating apparatus for embedded hydraulic power system Download PDFInfo
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- CN101363464B CN101363464B CN2008101511174A CN200810151117A CN101363464B CN 101363464 B CN101363464 B CN 101363464B CN 2008101511174 A CN2008101511174 A CN 2008101511174A CN 200810151117 A CN200810151117 A CN 200810151117A CN 101363464 B CN101363464 B CN 101363464B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 47
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 title claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 61
- 238000011109 contamination Methods 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 37
- 238000004891 communication Methods 0.000 claims description 7
- 238000011156 evaluation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000010729 system oil Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses an oil pollution monitoring and cleaning and filtering device of an embedded hydraulic power system, which comprises a main oil way A of the hydraulic system, a second electronic-magnetic or electronic-liquid steering valve which is arranged between the inlet and the outlet of the main oil way A of the hydraulic system. The device is characterized in that a branch oil way B is parallelly arranged on the inlet and the outlet of main oil way A of the hydraulic system, a branch oil way B is provided with a first electronic-magnetic or electric-liquid steering valve, a filter or a one-way valve and the filter is parallelly connected with a pressure gradient oil pollution monitoring and display device. The filtering device aims at not influencing the normal operation of the system when the attachment as the hydraulic equipment is embedded into the design of the hydraulic power system, monitoring results can better show the practical operation of oil.
Description
Technical field
The present invention relates to the pollution monitoring and the filtering and cleaning device of hydraulic equipment, particularly a kind of embedded hydraulic power system monitoring oil contamination and cleaning and filtering device.
Background technique
In modern hydraulic equipment, the pollution of fluid is controlled and is recycled extremely important.The rate of fault that hydraulic equipment causes owing to oil contamination accounts for more than 80% of total failare, many factory and enterprises or unit in charge of construction do not carry out contamination monitoring to the employed fluid of hydraulic equipment, and this makes contaminated fluid have a strong impact on the usability and the life-span of each hydraulic element in the system.And the factory and enterprise hydraulic oil or the fluid that behind certain hour, will more renew employed fluid, used fluid is done discarded the processing, cause waste and environmental pollution, strengthened the factory and enterprise cost of production.Therefore, under the prerequisite that guarantees the hydraulic equipment functional reliability, how to control oil contamination, and fluid is fully utilized, will become and reduce the oil contamination infringement, improve the key issue of hydraulic element working life and assurance hydraulic system maximum utility.Hydraulic oil pollution monitoring and filter cleaning are that modern hydraulic systems obtains the technical measures that the best effort effect must be taked, and from the angle of academic significance and technical meaning, still are from the angle of economic benefit no matter, all are crucial.
The claimant is by the analysis to domestic and international existing oil contamination detection of part and control technique, existing oil contamination detecting method and technology have following characteristics: detection principle, method and apparatus have certain use value in various occasion, but most detection devices all belong to offline inspection, the equipment complexity, the cost height, detecting method is loaded down with trivial details, relies on manual sampling and obtains to detect data, sense cycle is long, can not accomplish real time on-line monitoring.And the online monitoring device of minority all is not embedded into the sampling of hydraulic power system working connection, can not objectively respond the fluid actual state usually, does not have the function of on-line filtration cleaning fluid yet.
Summary of the invention
Loaded down with trivial details at equipment complexity, cost height, determining method that the oil contamination detection device of above-mentioned prior art exists, can not control defective or deficiency such as oil contamination, the objective of the invention is to, a kind of embedded hydraulic power system monitoring oil contamination and cleaning and filtering device are provided, this device can on-line monitoring fluid pollution level (slight, moderate and serious), and can select automatically that hydraulic system is normally moved according to pollution level, online cleaning, overload alarm function, realize that oil contamination detects and controls integrated.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of embedded hydraulic power system monitoring oil contamination and cleaning and filtering device, comprise hydraulic system working connection A, be provided with second electromagnetism/electro-hydraulic reversing valve between the filler opening of hydraulic system working connection A and the oil outlet, it is characterized in that, on the filler opening of hydraulic system working connection A and oil outlet, also be arranged in parallel an oil circuit B, on an oil circuit B, be provided with first electromagnetism/electro-hydraulic reversing valve, filter and one-way valve, on filter, be connected in parallel to differential monitoring oil contamination and display unit.
Above-mentioned filter is used for the filter cleaning of fluid, and differential monitoring oil contamination and display unit are used for the pressure difference signal at on-line measurement filter two ends and utilize the fuzzy classification technology to represent the contaminated degree of hydraulic oil according to the measured value of pressure difference signal.
Embedded hydraulic power system monitoring oil contamination of the present invention and cleaning and filtering device, annex as hydraulic equipment is embedded in the design of hydraulic power system, normally move in the system that do not influence, monitoring result more can reflect under the prerequisite of fluid actual operating state, creationary oil contamination on-line monitoring and the incorporate concrete thinking of control of having proposed.This device can on-line monitoring goes out fluid in the hydraulic work system process pollution level, can realize functions such as demonstration, storage, wireless transmission; Can behind renew cartridge more, clean filtration, realize that fluid utilizes again contaminated fluid; Can use single-chip microcomputer to pressure difference signal gather, function such as storage and signal processing, when oil contamination transfinites, can provide alarm signal, remind operator in time to clean or change fluid, take place with the prevention major accident, can also guarantee the hydraulic system proper functioning by two bi-bit bi-pass solenoid directional control valve control monitorings and clean time simultaneously.Compared with prior art, it makes that with the consideration of uniting of oil liquid monitoring and filtering technique oil contamination control is more effective; Each hydraulic element is installed on the integrated package, has optimized structure, process and install very convenient; Computer and microelectronic technology are introduced this device, provide new way for carrying out monitoring oil contamination and controlling Study of intelligent.Embedded hydraulic power system monitoring oil contamination of the present invention and cleaning and filtering device are intended to be embedded in the design of hydraulic power system as the annex of hydraulic equipment, do not influence the normal operation of system, and monitoring result more can reflect the fluid actual operating state.
Description of drawings
Fig. 1 is embedded hydraulic power system monitoring oil contamination of the present invention and cleaning and filtering device structural representation; Among the figure, A is a working connection, and B is oil circuit, and label is wherein represented respectively: 1, one-way valve, 2, filter, 3, differential monitoring oil contamination and display unit, 4, the first bi-bit bi-pass selector valve, 5, the second bi-bit bi-pass selector valve;
Fig. 2 is the structural representation of Fig. 1 middle filtrator; Label among the figure is represented respectively: 21, filter housing, 22, oil liquid monitoring filter element μ
The monitoring oil purifier, 23, fluid filter rinsed filter core μ
The cleaning oil purifier, 24, the filter core fixing bolt, 25, differential pressure pickup, 26, the pressure difference signal Out let.
Fig. 3 is the executive circuit structural representation of differential monitoring oil contamination and display unit among Fig. 1.
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment
Embedded hydraulic power system monitoring oil contamination of the present invention and cleaning and filtering device, comprise hydraulic system working connection A, be provided with second electromagnetism/electro-hydraulic reversing valve 5 between the filler opening of hydraulic system working connection A and the oil outlet, on the filler opening of hydraulic system working connection A and oil outlet, also be arranged in parallel an oil circuit B, on an oil circuit B, be provided with first electromagnetism/electro-hydraulic reversing valve 4, filter 2 and one-way valve 1, on filter 2, be connected in parallel to differential monitoring oil contamination and display unit 3.
Differential oil contamination display unit 3 comprises differential pressure pickup and measures display device and executive circuit, executive circuit (Fig. 3) comprises A/D sampler, AD converter, low-pass filter, wireless singlechip ED, be provided with the fuzzy evaluation algorithm among the wireless singlechip ED, wireless singlechip ED is connected with the LED liquid crystal display, and by wireless transmission port and wireless singlechip AP communication, wireless singlechip AP connects the PC terminal by the RS232 communication interface.
Differential pressure pickup is used to measure the pressure difference signal at filter 2 two ends, the pressure difference signal that records is delivered to executive circuit, the A/D sampler carries out digitized processing, after the AD converter conversion, send in the low-pass filter, utilize fuzzy evaluation algorithm classification among the wireless singlechip ED to deliver to the pollution level of LED LCD fluid, and send into wireless singlechip AP, send into the PC terminal through the RS232 communication interface by wireless transmission.
The filter core of filter 2 can be replaced by monitoring filter core or cleaning filter core by the filter precision requirement, becomes oil liquid monitoring and filters the cleaning filter with filter or fluid.
Greater than fluid filter cleaning Filter Precision, fluid filters to clean uses Filter Precision greater than hydraulic power system oil suction Filter Precision to oil liquid monitoring with Filter Precision, and promptly Filter Precision satisfies μ
Monitoringμ
Cleaningμ
Oil suction
Differential oil contamination display unit 3 is used to measure the pressure difference signal at filter 2 two ends, the A/D sampler that the pressure difference signal that records is outputed to executive circuit (Fig. 3) carries out digitized processing, after the AD converter conversion, send in the low-pass filter, utilize fuzzy evaluation algorithm classification among the wireless singlechip ED to deliver to the pollution level of LED LCD fluid, and send into wireless singlechip AP by wireless transmission, send into the PC terminal through the RS232 communication interface.
In each measuring period, can obtain a differential pressure curve, utilize this curve to draw pressure reduction maximum value, average and slope, utilize the fuzzy evaluation algorithm queries among the wireless singlechip ED can draw corresponding oil contamination degree according to the database of testing and fuzzy classification is set up.Fluid was controlled by two bi-bit bi-pass electromagnetism/electro-hydraulic reversing valves 4,5 by the time of filter 2, and the function that can reach monitoring and filter by the different filter cores of changing in the filter 2.
Embedded hydraulic power system monitoring oil contamination of the present invention and cleaning and filtering device have two kinds of working methods:
First kind of working method: oil contamination state on_line monitoring: set the turn around time of switching at first for first, second two bi-bit bi-pass electromagnetism/electro-hydraulic reversing valves 4,5, and power on for two electromagnetism/electro-hydraulic reversing valves 4,5 simultaneously, hydraulic system oil liquid flows to and switches to the oil liquid monitoring function, and fluid flows back to working connection A through bi-bit bi-pass solenoid directional control valve 4, filter 2 and one-way valve 1.By experimental data base and the fuzzy evaluation method that the executive circuit of observing on differential monitoring oil contamination and the display unit 3 is provided with, the degree of judging monitored oil contamination is slight, and moderate is still serious.Whether final decision cleans filtration to monitored fluid, still renew oil more, as shown in Figure 2.Then with 4, the 5 outage commutations of two bi-bit bi-pass solenoid directional control valves, apparatus of the present invention off-line.
Second kind of working method: fluid filters the cleaning state: at first according to the filter core of the suitable filter (2) of the described replacing of claim 6, set two bi-bit bi-pass solenoid directional control valves 4, (5) energising turn around time, power on for then bi-bit bi-pass solenoid directional control valve (4), (5) simultaneously, the hydraulic power system fluid flow direction is switched to fluid filter washing function, fluid flows back to working connection through bi-bit bi-pass solenoid directional control valve (4), filter (2) and one-way valve (1).After solenoid directional control valve (4), (5) outage commutation, expression is filtered fluid filtration cleaning and finishes at last, and fluid can continue to use, and hydraulic system is recovered proper functioning.
Below only be a kind of more representational embodiment of the present invention; obviously; the invention is not restricted to the foregoing description; many kind distortion can also be arranged, for example, change the structural type of oil purifier and the method for measurement of pressure difference etc.; therefore; under the prerequisite of the structure thinking that the application provides, a certain technical characteristics is done some corresponding adjustment or replacement, be the scope of the application's protection.
Claims (1)
1. embedded hydraulic power system monitoring oil contamination and cleaning and filtering device, comprise hydraulic system working connection (A), be provided with second electromagnetism/electro-hydraulic reversing valve (5) between the filler opening of hydraulic system working connection (A) and the oil outlet, on the filler opening of hydraulic system working connection (A) and oil outlet, also be arranged in parallel an oil circuit (B), on an oil circuit (B), be provided with first electromagnetism/electro-hydraulic reversing valve (4), filter (2) and one-way valve (1), on filter (2), be connected in parallel to differential monitoring oil contamination and display unit (3);
Described filter (2) is used for the filtration and the cleaning of fluid; Described differential monitoring oil contamination and display unit (3) are used for the pressure difference signal at on-line measurement filter (2) two ends, and show the contaminated degree of hydraulic oil according to this pressure difference signal measured value;
It is characterized in that:
Described differential monitoring oil contamination and display unit (3) comprise differential pressure pickup, measure display device and executive circuit, wherein, executive circuit comprises A/D sampler, AD converter, low-pass filter, wireless singlechip (ED), be provided with the fuzzy evaluation algorithm in the wireless singlechip (ED), wireless singlechip (ED) is connected with the LED liquid crystal display, and by wireless transmission port and wireless singlechip AP communication, wireless singlechip AP connects the PC terminal by the RS232 communication interface;
Differential pressure pickup is used to measure the pressure difference signal at filter (2) two ends, the pressure difference signal that records is delivered to executive circuit, the A/D sampler carries out digitized processing, after the AD converter conversion, send in the low-pass filter, utilize the fuzzy evaluation algorithm classification among the wireless singlechip ED to deliver to the pollution level that the LED liquid crystal display shows fluid, and send into wireless singlechip AP, send into the PC terminal through the RS232 communication interface by wireless transmission;
The filter core of described filter (2) can be replaced by monitoring filter core or cleaning filter core by the filter precision requirement, become oil liquid monitoring and filter the cleaning filter with filter or fluid, greater than fluid filter cleaning Filter Precision, fluid filters and cleans with Filter Precision greater than hydraulic power system oil suction Filter Precision described oil liquid monitoring with Filter Precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101511174A CN101363464B (en) | 2008-09-26 | 2008-09-26 | Oil liquid pollution monitoring, cleaning and filtrating apparatus for embedded hydraulic power system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101511174A CN101363464B (en) | 2008-09-26 | 2008-09-26 | Oil liquid pollution monitoring, cleaning and filtrating apparatus for embedded hydraulic power system |
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| CN101363464A CN101363464A (en) | 2009-02-11 |
| CN101363464B true CN101363464B (en) | 2011-06-08 |
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| CN2008101511174A Expired - Fee Related CN101363464B (en) | 2008-09-26 | 2008-09-26 | Oil liquid pollution monitoring, cleaning and filtrating apparatus for embedded hydraulic power system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541951A (en) * | 2013-09-30 | 2014-01-29 | 王君 | Hydraulic oil pollution monitoring system |
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| CN101533003B (en) * | 2009-04-09 | 2012-07-04 | 西安建筑科技大学 | Device for monitoring oil contamination |
| CN101539565B (en) * | 2009-04-28 | 2012-07-04 | 西安建筑科技大学 | Oil pollution monitoring device of hydraulic system |
| CN102829030B (en) * | 2012-09-13 | 2014-10-29 | 大连海事大学 | An open seawater hydraulic pollution control system for deep sea operation equipment |
| CN103541947A (en) * | 2013-09-30 | 2014-01-29 | 陈咸均 | Device for detecting and treating mine machine hydraulic oil pollution |
| CN103743793A (en) * | 2013-12-31 | 2014-04-23 | 南通大学 | Online detection device for hydraulic pipeline washing oil for ship |
| CN103742485B (en) * | 2014-01-20 | 2016-03-16 | 中国重型机械研究院股份公司 | Led display hydraulic oil quality detection monitoring instrument |
| CN105757059A (en) * | 2016-05-12 | 2016-07-13 | 陈连萍 | Oil filtering method achieving filtration, magnetization, adsorption, magnetic field rotation and centrifugation with variable structures |
| CN105889186A (en) * | 2016-05-12 | 2016-08-24 | 李�昊 | Filtering method adopting full-frequency-band variable-structure filtering, electrification, adsorption and rotating magnetic field |
| CN105889198A (en) * | 2016-05-12 | 2016-08-24 | 浙江工业职业技术学院 | Filter device adopting filter, electrification, separation, adsorption and centrifugation |
| CN106050810A (en) * | 2016-07-23 | 2016-10-26 | 唐山工业职业技术学院 | Hydraulic actuator pollution detection and treatment device |
| CN111765147B (en) * | 2020-06-02 | 2021-10-15 | 美钻能源科技(上海)有限公司 | Underwater hydraulic oil control device and control method |
| CN112428161A (en) * | 2020-11-18 | 2021-03-02 | 安徽信息工程学院 | A pre-mixed abrasive jet abrasive concentration monitoring system and monitoring method |
| CN113062902A (en) * | 2021-03-12 | 2021-07-02 | 美钻能源科技(上海)有限公司 | Underwater control module |
| CN113685396A (en) * | 2021-09-06 | 2021-11-23 | 中国空气动力研究与发展中心低速空气动力研究所 | Oil pipeline filter |
| CN114776668A (en) * | 2022-05-06 | 2022-07-22 | 河南德玛隆滤器设备有限公司 | Hydraulic oil filter |
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| FR2292833A1 (en) * | 1974-11-27 | 1976-06-25 | Digi France | Lock with bolt movable by electric motor - has control microswitches for end of travel of bolt driven via cam plate and rollers |
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Cited By (2)
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| CN103541951A (en) * | 2013-09-30 | 2014-01-29 | 王君 | Hydraulic oil pollution monitoring system |
| CN103541951B (en) * | 2013-09-30 | 2015-09-16 | 王君 | A kind of hydraulic oil fouling monitoring system |
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| CN101363464A (en) | 2009-02-11 |
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