CN103321988B - A kind of filter purification method of hydraulic oil - Google Patents
A kind of filter purification method of hydraulic oil Download PDFInfo
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Abstract
A filter purification method for hydraulic oil, step is as follows: (1) application electric heating system, heats, first fluid is heated to 60 DEG C to fluid; (2) by first level filtering device, carry out single filter, novel high gradient electromagnetic filter, multiple parallel connection, carries out single filter, to be oxidized the large molecule of generation in ferromagnetism corrosion products in filtering fluid and hydraulic oil using process; (3) by two-stage filter, carry out cascade filtration, eliminate larger solid particle; (4) by three-level filter device, the filter adopting common filter precision higher is in parallel, forms redundancy, filters; (5) open outlet valve, the gaseous impurity of removing fluid, be arranged on after filtration at different levels completes, eliminate the bubble produced in filter process; (6) by oil-water separation system, moisture in removing fluid; (7) adopting contamination particle counter, Real-Time Monitoring fluid lustration class, when reaching requirement purification levels necessitate, closing the solenoid valve of return tube.
Description
Technical field
Relate to a kind of hydraulic oil filtering purification method herein, be specifically related to adopt Magnetic filter, coarse filtration and secondary filter three grades of redundant cyclic filter methods to obtain requiring the fluid of lustration class.The pollution sources of hydraulic oil mainly contain: the large molecule etc. that solid particle, water, air, oxidation produce, by the discarded Hydraulic oil pollutants of industry through the method filtering contaminants, and realize fuzzy control, be used for purifying the pollution fluid for hydraulic element and system, realize again utilizing.The method adopts fuzzy control model, can realize automatic control.The advantages such as this filter method cost is low, the time is short, the life-span is long, reliability is high, automatic control, belong to the technical field of auxiliary facilities of Aero-Space, automobile, machine tool mechanical.
Background technique
Compared with traditional filter method, combination of filters method has that filtrate precision is higher, advantages of simple structure and simple.Along with deepening continuously of research work, deficiency and the weakness of filtration combination method come out gradually, as short in the life-span, reliability is low, filter efficiency is low, can not realize automation etc.Meanwhile, multistage filtering method and intelligently filters method are developed and apply, and multistage filtering method has the high feature of filter precision.Smart filter can realize automatic control, does not rely on people, filter efficiency high.
Current existing multistage filtering method is three-stage filtration method, if application number is " hydraulic oil purifying system " of CN200320124413, proposes multistage purification method, but there is not realization control automatically, needs often to clean, the shortcomings such as the life-span is short.Application number be 2012201811044 " intelligent control Combined oil purification apparatus " devise an intelligent control, but filter precision is not high enough, the life-span is short, filter efficiency is low.Fuzzy control model seldom occurs in hydraulic oil filtration system, so the present invention proposes the fuzzy control method that a kind of three grades of redundant cyclic filter.
Summary of the invention
A. goal of the invention
The object of this invention is to provide a kind of filter purification method of hydraulic oil, it is a kind of purification method for hydraulic element and systemic contamination fluid, the feature that three grades of redundant cyclic with fuzzy control function filter.The method has the advantages such as reliability is high, the life-span is long, purification efficiency is high, automatic control.
B. technological scheme
The filter purification method of a kind of hydraulic oil of the present invention, its step is as follows:
Step one: application electric heating system, heats fluid
Described electric heating system comprises: electric heater 2, thermometer 3 and fuzzy control model 15.Described electric heater 2, it is that a kind of common temperature is adjustable, has the electric heater of heating fluid function, is arranged on the position near filler opening, is connected with fuzzy control model 15.First fluid is heated to 60 DEG C; Described thermometer 3, it is a kind of common thermometer, and range is 0 DEG C ~ 100 DEG C, is arranged on the outlet of electric heater 2, the change of monitoring oil liquid temperature; Described fuzzy control model 15, it a kind ofly has the integrated software multiple hydraulic element and parameter to fuzzy control function, its function is function hydraulic filtering system being realized to fuzzy control, and the valve opening that automatically can process filtration system is closed, reported to the police and the function such as system heating, exhaust;
Step 2: by first level filtering device, carries out single filter
Described first level filtering device comprises: electromagnetic filter 4, solenoid valve 1, warning device 8, fuzzy control model 15.Described electromagnetic filter 4, it is a kind of novel high gradient electromagnetic filter, adopt multiple parallel connection (being generally 3 ~ 5 electromagnetic filter parallel connections), carry out single filter, to be oxidized the large molecule of generation in ferromagnetism corrosion products in filtering fluid and hydraulic oil using process; Described solenoid valve 1, it is that a kind of common tool controls the flow of fluid and the solenoid valve 1 of flow rate function, is arranged near filler opening position; Described warning device 8, it is a kind of warning device made according to differential pressure characteristics, is analyzed, judges whether to exceed threshold value by fuzzy control model 15, when exceeding threshold value, closes the solenoid valve 1 of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 3: by two-stage filter, carries out cascade filtration
Described two-stage filter comprises: motor-drive pump 5, relief valve 6, coarse-grain filtering device 7, solenoid valve 1, warning device 8, fuzzy control model 15.Described motor-drive pump 5, it is a kind of electric fuel punp, and for system provides power, multiple motor-drive pump parallel connection (being generally 2 motor-drive pump parallel connections), forms redundancy, improves reliability; Described relief valve 6, it is that YF type three saves concentric pilot-type relief valve (tubular type), is connected in parallel on the two ends of pump, protection filter core; Described coarse-grain filtering device 7, it is the filter that a kind of common filter precision is lower, adopt the parallel connection of multiple same size (being generally 3 ~ 5 coarse-grain filtering device parallel connections), to increase filter area and pollutant holding capability, the large molecule that the larger solid particle in filtering fluid and fluid oxidation produce.The above each coarse-grain filtering device 7 is all connected with fuzzy control model 15 with solenoid valve 1, and on every first level filtering device, warning device 8 is installed, being analyzed by fuzzy control model 15, judge whether to exceed threshold value, when exceeding threshold value, closing the solenoid valve 1 of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 4: by three-level filter device, carries out three-stage filtration
Described three-level filter device comprises: motor-drive pump 5, relief valve 6, accurate filter 10, solenoid valve 1, warning device 8, fuzzy control model 15.Described accurate filter 10, it is the filter that a kind of common filter precision is higher, its filter core adopts long fibre, in-depth filtration structure, make through high density HIGH PRESSURE TREATMENT, the parallel connection (being generally 3 ~ 5 accurate filter parallel connections) of multiple same size, to increase filter area, improve its reliability; Above-mentioned each accurate filter 10 is all connected with fuzzy control model 15 with solenoid valve 1, and on one, two and three-level filter device, warning device 8 is installed, being analyzed by fuzzy control model 15, judge whether to exceed threshold value, when exceeding threshold value, closing the solenoid valve 1 of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 5: open outlet valve, the gaseous impurity of removing fluid
Described outlet valve 9, it is a kind of common outlet valve, is arranged on after filtration at different levels completes, eliminates the bubble produced in filter process, analyze judgement, if gas content is many in fluid, then open outlet valve by fuzzy control model 15, otherwise, close;
Step 6: by oil-water separation system, moisture in removing fluid
Described oil-water separation system comprises: oily-water seperating equipment 12, tank 13, fuzzy control model 15; Described oily-water seperating equipment 12, it is a kind of common oily-water seperating equipment, is connected with fuzzy control model 15, if moisture content is higher by analysis, then closes bypass solenoid valve 1, the oil after purification is carried out oil-water separation; When low to a certain specified value, then open bypass solenoid valve 1; Described tank 13, it is a kind of common tank, is connected with oily-water seperating equipment, collects the waste water produced in oil water separation process;
Step 7: adopt contamination particle counter, Real-Time Monitoring fluid lustration class
Described contamination particle counter 11, it be a kind of common can the particle collector of the granule number of different size pollutant in real time on-line monitoring fluid, be connected with fuzzy control model 15, when reaching requirement purification levels necessitate, close the solenoid valve 1 of return tube, open the solenoid valve 1 of oil exit pipe, the fluid after filtration flows into fuel tank 14, otherwise, continue circularly purifying.
C. beneficial effect
The filter purification method of a kind of hydraulic oil of the present invention, three grades of redundant cyclic of, the coarse filtration overanxious through electromagnetism of heating fluid and secondary filter filter and oil-water separation is filtered.Filter parallel redundancy can increase filter area, improves filter efficiency; In this external system, certain filter reaches and receives the dirty limit, and the method does not need to stop filtration carrying out filter rinsed, can work on, and can increase the reliability of filtration and filter efficiency and life-span.Motor redundancy can reduce the wearing and tearing of motor, improves the life-span of motor, increases its reliability.Fuzzy control model is connected with electric heater, filter, warning device, solenoid valve, contamination particle counter etc., can realize the function such as online automatic detection, fuzzy control, can obtain required standard fluid efficiently, reliably.In addition, according to Environmental capacity equation, the downstream contamination concentration time curve obtained can estimate the time obtaining the purification requiring lustration class fluid.Oil outlet tube and return tube are provided with protection and warning device and detecting method, to exercise supervision oil quality protect filter core not to be destroyed, can reduce unnecessary economic loss to filtration system.Advantage of the present invention and effect are: this mechanism can realize high efficiency filter, and the filtration system life-span long, automatic control can be realized, reliability is high, pollutant holding capability is large, purification efficiency is high, in addition, also can realize time Estimate.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of purification method of the present invention.
Fig. 2 is the flow chart of purification method of the present invention.
Fig. 3 is the software flow block diagram in fuzzy control model of the present invention.
In figure: 1, solenoid valve 1,2, electric heater, 3, thermometer, 4, electromagnetic filter, 5, motor-drive pump, 6, relief valve, 7, coarse-grain filtering device, 8, warning device, 9, outlet valve, 10, accurate filter, 11, contamination particle counter, 12, oily-water seperating equipment, 13, tank, 14, fuel tank, 15, fuzzy control model.
D. embodiment
The present invention is used for the purification method of hydraulic element and systemic contamination fluid, the filtrating equipment of use as shown in Figure 1, concrete purification process as shown in Figure 2: below in conjunction with accompanying drawing, this method is described in further detail.
Step one: application electric heating system, heats fluid
Described electric heating system comprises: electric heater 2, thermometer 3 and fuzzy control model 15.Described electric heater 2, it is that a kind of common temperature is adjustable, has the electric heater of heating fluid function, is arranged on the position near filler opening, is connected with fuzzy control model 15; Described fuzzy control model 15, it a kind ofly has the integrated software multiple hydraulic element and parameter to fuzzy control function, it mainly comprises the process description of heating, single filter, cascade filtration, three-stage filtration, profit filtration, its function is function hydraulic filtering system being realized to fuzzy control, the valve opening that automatically can process filtration system is closed, is reported to the police and the function such as system heating, exhaust, and the software flow block diagram in this fuzzy control model as shown in Figure 3; Described thermometer 3, it is a kind of common thermometer, and range is 0 DEG C ~ 100 DEG C, is arranged on the outlet of electric heater 2, the change of monitoring oil liquid temperature;
Step 2: by first level filtering device, carries out single filter
Described first level filtering device comprises: electromagnetic filter 4, solenoid valve 1, warning device 8, fuzzy control model 15.Described electromagnetic filter 4, it is a kind of novel high gradient electromagnetic filter, and 3 parallel connections, carry out single filter, with ferromagnetism corrosion products in filtering fluid; Described solenoid valve 1, it is that a kind of common tool controls the flow of fluid and the solenoid valve 1 of flow rate function, is arranged near filler opening position; Described warning device 8, it is a kind of warning device made according to differential pressure characteristics, is analyzed by fuzzy control model 15, judges whether to exceed threshold value, when exceeding threshold value, closes the solenoid valve 1 of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 3: by two-stage filter, carries out cascade filtration
Described two-stage filter comprises: motor-drive pump 5, relief valve 6, coarse-grain filtering device 7, solenoid valve 1, warning device 8, fuzzy control model 15.Described motor-drive pump 5, it is a kind of electric fuel punp, and for system provides power, 2 motor-drive pump parallel connections, form redundancy, improve reliability; Described relief valve 6, it is that YF type three saves concentric pilot-type relief valve (tubular type), is connected in parallel on the two ends of motor-drive pump 5, protection filter core; Described coarse-grain filtering device 7, it is the filter that a kind of common filter precision is lower, adopts the coarse-grain filtering device 7 of 3 same sizes in parallel, to increase filter area and pollutant holding capability.The above each coarse-grain filtering device 7 is all connected with fuzzy control model 15 with solenoid valve 1, and on every first level filtering device, warning device 8 is installed, being analyzed by fuzzy control model 15, judge whether to exceed threshold value, when exceeding threshold value, closing the solenoid valve 1 of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 4: by three-level filter device, carries out three-stage filtration
Described three-level filter device comprises: motor-drive pump 5, relief valve 6, accurate filter 10, solenoid valve 1, warning device 8, fuzzy control model 15.Described accurate filter 10, it is the filter that a kind of common filter precision is higher, and its filter core adopts long fibre, in-depth filtration structure, makes, with the parallel connection of 3 same sizes, to increase filter area, improve its reliability through high density HIGH PRESSURE TREATMENT; Above-mentioned each accurate filter 10 is all connected with fuzzy control model 15 with solenoid valve 1, and on one, two and three-level filter device, warning device 8 is installed, being analyzed by fuzzy control model 15, judge whether to exceed threshold value, when exceeding threshold value, closing the solenoid valve 1 of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 5: open outlet valve, the gaseous impurity of removing fluid
Described outlet valve 9, it is a kind of common outlet valve, is arranged on after filtration at different levels completes, eliminates the bubble produced in filter process, analyzed, if gas content is many in fluid, then open outlet valve by fuzzy control model 15, otherwise, close;
Step 6: by oil-water separation system, moisture in removing fluid
Described oil-water separation system comprises: oily-water seperating equipment 12, tank 13, fuzzy control model 15; Described oily-water seperating equipment 12, it is a kind of common oily-water seperating equipment, is connected with fuzzy control model 15, if moisture content is higher by analysis, then closes bypass solenoid valve 1, the oil after purification is carried out oil-water separation; When low to a certain specified value, then open bypass solenoid valve 1; Described tank 13, it is a kind of common tank, is connected with oily-water seperating equipment, collects the waste water produced in oil water separation process;
Step 7: adopt contamination particle counter, Real-Time Monitoring fluid lustration class
Described contamination particle counter 11, it be a kind of common can the particle collector of the granule number of different size pollutant in real time on-line monitoring fluid, be connected with fuzzy control model 15, when reaching requirement purification levels necessitate, close the solenoid valve 1 of return tube, open the solenoid valve 1 of oil exit pipe, the fluid after filtration flows into fuel tank 14, otherwise, continue circularly purifying.
Claims (5)
1. a filter purification method for hydraulic oil, is characterized in that: the concrete implementation step of the method is as follows:
Step one: application electric heating system, heats fluid:
Described electric heating system comprises: electric heater (2), thermometer (3) and fuzzy control model (15); Described electric heater (2), it is that a kind of common temperature is adjustable, has the electric heater of heating fluid function, is arranged on the position near filler opening, is connected with fuzzy control model (15); First fluid is heated to 60 DEG C; Described thermometer (3), it is a kind of common thermometer, and range is 0 DEG C ~ 100 DEG C, is arranged on the outlet of electric heater (2), the change of monitoring oil liquid temperature; Described fuzzy control model (15), it a kind ofly has integrated software hydraulic element and parameter to fuzzy control function, its function is function hydraulic filtering system being realized to fuzzy control, automatically can process the valve opening closedown of filtration system, warning and system heating and degassing function;
Step 2: by first level filtering device, carry out single filter:
Described first level filtering device comprises: electromagnetic filter (4), solenoid valve (1), warning device (8), fuzzy control model (15); Described electromagnetic filter (4), it is a kind of novel high gradient electromagnetic filter, and multiple parallel connection, carries out single filter, to be oxidized the large molecule of generation in ferromagnetism corrosion products in filtering fluid and hydraulic oil using process; Described solenoid valve (1), it is that a kind of common tool controls the flow of fluid and the solenoid valve (1) of flow rate function, is arranged near filler opening position; Described warning device (8), it is a kind of warning device made according to differential pressure characteristics, is analyzed by fuzzy control model (15), is judged whether to exceed threshold value, when exceeding threshold value, closes the solenoid valve (1) of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device (8) is reported to the police and is stopped filtering;
Step 3: by two-stage filter, carry out cascade filtration:
Described two-stage filter comprises: motor-drive pump (5), relief valve (6), coarse-grain filtering device (7), solenoid valve (1), warning device (8), fuzzy control model (15); Described motor-drive pump (5), it is a kind of electric fuel punp, and for system provides power, multiple motor-drive pump (5) is in parallel, forms redundancy, improves reliability; Described relief valve (6), it is that YF type three saves concentric pilot-type relief valve, is connected in parallel on the two ends of pump, protection filter core; Described coarse-grain filtering device (7), it is the filter that a kind of common filter precision is lower, adopts the parallel connection of multiple same size, to increase filter area and pollutant holding capability, the large molecule that the larger solid particle in filtering fluid and fluid oxidation produce; The above each coarse-grain filtering device (7) is all connected with fuzzy control model (15) with solenoid valve (1), and warning device (8) is installed on every first level filtering device, analyze by fuzzy control model (15), judge whether to exceed threshold value, when exceeding threshold value, close the solenoid valve (1) of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 4: by three-level filter device, carry out three-stage filtration:
Described three-level filter device comprises: motor-drive pump (5), relief valve (6), accurate filter (10), solenoid valve (1), warning device (8), fuzzy control model (15); Described accurate filter (10), it is the filter that a kind of common filter precision is higher, its filter core adopts long fibre, in-depth filtration structure, make through high density HIGH PRESSURE TREATMENT, in parallel with the accurate filter (10) of multiple same size, to increase filter area, improve its reliability; Above-mentioned accurate filter (10) is all connected with fuzzy control model (15) with solenoid valve (1), and warning device (8) is installed on one, two and three-level filter device, analyze by fuzzy control model (15), judge whether to exceed threshold value, when exceeding threshold value, close the solenoid valve (1) of connecting with it; Otherwise, do not act on; After all solenoid valves all cut out, warning device is reported to the police and is stopped filtering;
Step 5: open outlet valve, the gaseous impurity of removing fluid:
Described outlet valve, it is a kind of common outlet valve, is arranged on after filtration at different levels completes, eliminates the bubble produced in filter process, judged, if gas content is many in fluid, then open outlet valve by fuzzy control model (15) analysis, otherwise, close;
Step 6: by oil-water separation system, moisture in removing fluid:
Described oil-water separation system comprises: oily-water seperating equipment (12), tank (13), fuzzy control model (15); Described oily-water seperating equipment (12), it is a kind of common oily-water seperating equipment, is connected, if moisture content is high by analysis with fuzzy control model (15), then close bypass solenoid valve (1), the oil after purification is carried out oil-water separation; When low to a certain specified value, then open bypass solenoid valve (1); Described tank (13), it is a kind of common tank, is connected with oily-water seperating equipment, collects the waste water produced in oil water separation process;
Step 7: adopt contamination particle counter, Real-Time Monitoring fluid lustration class:
Described contamination particle counter (11), it be a kind of common can the particle collector of the granule number of different size pollutant in real time on-line monitoring fluid, be connected with fuzzy control model (15), when reaching requirement purification levels necessitate, close the solenoid valve (1) of return tube, open the solenoid valve (1) of oil exit pipe, the fluid after filtration flows into fuel tank (14), otherwise, continue circularly purifying.
2. the filter purification method of a kind of hydraulic oil according to claim 1, is characterized in that: electromagnetic filter (4) the multiple parallel connection described in step 2, refers to the parallel connection of 3 ~ 5 electromagnetic filters (4).
3. the filter purification method of a kind of hydraulic oil according to claim 1, is characterized in that: motor-drive pump (5) the multiple parallel connection described in step 3, refers to the parallel connection of 2 motor-drive pumps (5).
4. the filter purification method of a kind of hydraulic oil according to claim 1, is characterized in that: the coarse-grain filtering device (7) of the multiple same size of the employing described in step 3 is in parallel, refers to the parallel connection of employing 3 ~ 5 coarse-grain filtering devices (7).
5. the filter purification method of a kind of hydraulic oil according to claim 1, it is characterized in that: the accurate filter (10) described in step 4 adopts the parallel connection of multiple same size, refers to the parallel connection of employing 3 ~ 5 accurate filters (10).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105251788A (en) * | 2015-10-24 | 2016-01-20 | 江阴科玛金属制品有限公司 | Cyclic utilization method and device of cold rolling system lubricating oil |
| CN105889233B (en) * | 2016-05-31 | 2018-09-07 | 广东润田高新科技有限公司 | A kind of high-pressure installation and method for purifying hydraulic oil |
| CN106194904B (en) * | 2016-09-29 | 2018-01-16 | 安徽合力股份有限公司 | A kind of hydraulic transmission box testing stand uses filter online |
| CN106621529B (en) * | 2017-03-02 | 2023-04-11 | 龙岩市海特叉车有限公司 | Centrifugal fluid automatic filtration circulating device |
| CN108479154B (en) * | 2018-06-21 | 2023-05-12 | 农业部规划设计研究院 | Pyrolysis oil high-pressure continuous filtering and dedusting system and method |
| CN109882473B (en) * | 2019-03-19 | 2020-06-19 | 首钢集团有限公司 | Pollution balance control method for hydraulic system |
| CN111875182B (en) * | 2020-08-07 | 2023-07-04 | 南京天河水环境科技有限公司 | Operation method of micro-polluted water body treatment system |
| CN112807840B (en) * | 2020-12-31 | 2022-05-27 | 飞潮（无锡）过滤技术有限公司 | Recovery of Fe3O4Nano particle filtering and separating system and method |
| CN114962099B (en) * | 2021-12-22 | 2024-06-18 | 中国船舶集团有限公司第七一一研究所 | Fuel pretreatment system of high-power diesel engine |
| CN115111517A (en) * | 2022-06-16 | 2022-09-27 | 九江七所精密机电科技有限公司 | Oil liquid filtering device with online monitoring function and method |
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| US5330636A (en) * | 1992-12-04 | 1994-07-19 | Adfiltech Corporation | Apparatus for continuous reconditioning of hydrocarbon fluids |
| US6478953B2 (en) * | 2000-11-30 | 2002-11-12 | Porous Media Corporation | Oil filter and dehydrator |
| CN2467153Y (en) * | 2001-02-19 | 2001-12-26 | 重庆华能滤油机制造有限公司 | Computer detection vacuum oil filter |
| CN102606561B (en) * | 2012-02-24 | 2015-09-02 | 北京市三一重机有限公司 | Oil contamination control system and controlling method thereof |
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