CN112984361A - Lubricating oil purification system - Google Patents
Lubricating oil purification system Download PDFInfo
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- CN112984361A CN112984361A CN202110350659.XA CN202110350659A CN112984361A CN 112984361 A CN112984361 A CN 112984361A CN 202110350659 A CN202110350659 A CN 202110350659A CN 112984361 A CN112984361 A CN 112984361A
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 132
- 238000000746 purification Methods 0.000 title claims abstract description 70
- 239000003921 oil Substances 0.000 claims abstract description 282
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000012546 transfer Methods 0.000 claims description 46
- 238000002955 isolation Methods 0.000 claims description 14
- 239000010724 circulating oil Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000018044 dehydration Effects 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000003749 cleanliness Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000011109 contamination Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012864 cross contamination Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N2039/007—Using strainers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
Abstract
The invention belongs to the field of liquid medium purification, and discloses a lubricating oil purification system which comprises an oil inlet pipe, a heat exchanger, a waste oil tank, a primary filter, a heater, a vacuum separator, a multi-stage filter and a clean oil tank which are sequentially connected; the multi-stage filter comprises a filtering pipe, an oil outlet pump, a one-way valve and a plurality of secondary filters; one end of the filtering and cleaning pipe is connected with the vacuum separator, and the other end of the filtering and cleaning pipe is sequentially connected with the oil outlet pump, the one-way valve, the secondary filters and the clean oil tank. The lubricating oil purification system disclosed by the invention realizes the combination of triple purification of heating evaporation, vacuum dehydration and filtration through the heater, the vacuum separator and the multi-stage filter, greatly improves the lubricating oil purification efficiency, and can fully meet the design and use requirements through repeated tests, and simultaneously achieves the purposes of reducing the shutdown time, improving the productivity, reducing the consumption of the product filter and the like.
Description
Technical Field
The invention belongs to the field of liquid medium purification, and relates to a lubricating oil purification system.
Background
Various contaminants are present in the hydraulic system medium, the most significant of which are solid particles, in addition to water, air, and harmful chemicals. The main sources of the pollutants are as follows: self-contamination, normal contamination, intrusive contamination, abrasive contamination and catalytic effect. The oil contamination directly affects the operational reliability of the hydraulic system and the service life of the components. The existing data show that about 70% -80% of the faults of the hydraulic system are caused by oil pollution, further causing the pollution abrasion of elements, the blockage faults of the elements, the clamping faults of the elements and the performance degradation of accelerated oil.
Therefore, the cleanliness of the lubricating oil has great influence on the service life of the product, and meanwhile, the oil change period can be prolonged, and the cost is reduced. However, the existing lubricating oil over-purification system generally has low filtration efficiency, and it is difficult to effectively ensure the purification result after filtration.
Disclosure of Invention
The invention aims to overcome the defects that the lubricating oil purification system in the prior art has low filtration efficiency and is difficult to effectively ensure the purification result after filtration, and provides a lubricating oil purification system.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a lubricating oil purification system comprises an oil inlet pipe, a heat exchanger, a waste oil tank, a primary filter, a heater, a vacuum separator, a multi-stage filter and a clean oil tank which are connected in sequence; the multi-stage filter comprises a filtering pipe, an oil outlet pump, a one-way valve and a plurality of secondary filters; one end of the filtering and cleaning pipe is connected with the vacuum separator, and the other end of the filtering and cleaning pipe is sequentially connected with the oil outlet pump, the one-way valve, the secondary filters and the clean oil tank.
The invention further improves the following steps:
a first branch pipe is arranged at one end of the filtering pipe connected with the oil outlet pump, a plurality of secondary branch pipes are arranged at the other end of the first branch pipe, and the other ends of the plurality of secondary branch pipes are respectively connected with a pipeline between the one-way valve and the secondary filter and a pipeline between two adjacent secondary filters; each secondary branch pipe is provided with an isolation valve; a first pressure sensor and a pressure gauge are arranged on a pipeline between the one-way valve and the secondary filter; and pressure gauges are arranged on the pipelines between all two adjacent secondary filters.
The oil inlet pipe is provided with an oil inlet valve, a first temperature sensor is arranged on a pipeline between the heater and the vacuum separator, the heater is provided with a heater blow-down valve, the waste oil tank is provided with a waste oil tank exhaust valve, the vacuum separator is provided with a vacuum separator exhaust valve and a vacuum separator blow-down valve, and each secondary filter is provided with a secondary filter blow-down valve.
And an oil outlet electromagnetic valve and an oil outlet valve which are connected in parallel are arranged on a pipeline between the heater and the vacuum separator.
The inlet of the transfer oil tank is connected with a pipeline between the secondary filter and the clean oil tank, and the outlet of the transfer oil tank is connected with the primary filter; a transfer oil inlet valve is arranged at the inlet of the transfer oil tank, and a transfer oil outlet valve is arranged at the outlet of the transfer oil tank; a clean oil tank oil inlet valve is arranged on a pipeline between the clean oil tank and the secondary filter; and a transfer oil tank exhaust valve and a transfer oil tank blow-down valve are arranged on the transfer oil tank.
The circulating pipeline is provided with a circulating valve, one end of the circulating pipeline is connected with an inlet of the heater, the other end of the circulating pipeline is connected with a pipeline between the tail end secondary filter and the adjacent secondary filter, and the tail end secondary filter is a secondary filter connected with the clean oil tank in the secondary filters.
And a sampling valve is arranged on a pipeline between the clean oil tank and the secondary filter.
The outlet of the oil purification tank is connected with the inlet of the primary filter, and an oil outlet valve of the oil purification tank is arranged on a pipeline between the oil purification tank and the primary filter.
The device also comprises a circulating oil pump, a test piece, an oil discharge pump, a first clean oil tank branch pipe, a second clean oil tank branch pipe and a test oil pipe; one end of the first clean oil tank branch pipe is connected with a clean oil tank, the other end of the first clean oil tank branch pipe is sequentially connected with a circulating oil pump and one end of the second clean oil tank branch pipe, and a clean oil tank oil inlet valve is arranged on the first clean oil tank branch pipe; the other end of the second clean oil tank branch pipe is connected with a clean oil tank, and a clean oil tank return valve is arranged on the second clean oil tank branch pipe; one end of the oil testing pipe is connected with the first clean oil tank branch pipe and the second clean oil tank branch pipe, and the other end of the oil testing pipe is connected with the test piece, the oil drainage pump and the heat exchanger in sequence.
A second pressure sensor and a second temperature sensor are arranged on the first clean oil tank branch pipe, a clean oil tank exhaust valve and a clean oil tank blow-down valve are arranged on the clean oil tank, and an oil inlet electromagnetic valve is arranged on a pipeline between the oil drainage pump and the heat exchanger.
Compared with the prior art, the invention has the following beneficial effects:
the lubricating oil purification system heats the lubricating oil through the heater, reduces the viscosity of the lubricating oil, enhances the fluidity, evaporates the water in the lubricating oil, and is beneficial to the purification work of the lubricating oil; after vacuum flash evaporation is carried out by using a vacuum separator, water in the lubricating oil can be separated from the lubricating oil, so that the water in the lubricating oil is further taken out; under the higher temperature of lubricating oil temperature, make impurity and lubricating oil separation in the lubricating oil under the effect of low viscosity filter core through multistage filter, the lubricating oil impurity can be less and less under the filter core effect under multistage filtration to get rid of the effect of moisture and impurity in the lubricating oil, reach the purpose of purifying lubricating oil. Realize the combination of heating evaporation, vacuum dehydration and filtration triple purification through heater, vacuum separator and multistage filter, very big promotion lubricating oil purification efficiency to, repeated test shows, can fully reach design and operation requirement, realize reducing the time of shutting down, productivity gain and reduce the consumption of product filter.
Further, still include the transfer oil tank, the import of transfer oil tank and the tube coupling between secondary filter and the clean oil case through setting up the transfer oil tank, prevent lubricating oil cross contamination, improve the reliability of lubricating oil.
The device further comprises a circulating pipeline, a circulating valve is arranged on the circulating pipeline, one end of the circulating pipeline is connected with an inlet of the heater, the other end of the circulating pipeline is connected with a pipeline between the tail end secondary filter and the adjacent secondary filter, and the circulating purification of the lubricating oil is realized by arranging the circulating pipeline so as to ensure that the lubricating oil can meet the final purification requirement.
Further, set up the sample valve on the pipeline between clean oil case and the secondary filter, through setting up the sample valve, can follow the sample in the pipeline and survey, in time know the current purifying conditions of lubricating oil.
Further, set up the test piece, realize the experimental use of the lubricating oil after the purification to guarantee that the lubricating oil after the purification can satisfy the user demand.
Drawings
FIG. 1 is a schematic diagram of a lubricating oil purification system according to the present invention.
Wherein: 1-an oil inlet valve; 2-oil inlet electromagnetic valve; 3-a heat exchanger; 4-heat exchanger water inlet valve; 5-heat exchanger outlet valve; 6-exhaust valve of waste oil tank; 7-a waste oil tank; 8-an oil outlet valve of the waste oil tank; 9-transfer oil tank delivery valve; 10-oil outlet valve of the clean oil tank; 11-a primary oil filter; 12-a heater; 13-heater blowdown valve; 14-a first temperature sensor; 15-oil outlet electromagnetic valve; 16-an oil outlet valve; 17-vacuum separator exhaust valve; 18-a vacuum separator; 19-vacuum separator blowdown valve; 20-oil outlet pump; 21-a one-way valve; 22-a first pressure sensor; 23-a first isolation valve; 24-a first pressure gauge; 25-a secondary filter; 26-secondary filter blowdown valve; 27-a second isolation valve; 28-a second pressure gauge; 29-three stage filter; 30-a three-stage filter blowdown valve; 31-a third isolation valve; 32-a third pressure gauge; 33-a four-stage filter; 34-a four-stage filter blowdown valve; 35-a fourth isolation valve; 36-circulation valve; 37-a fourth pressure gauge; 38-five stage filter; 39-fifth stage filter blowoff valve; 40-a sampling valve; 41-a transfer oil inlet valve; 42-oil inlet valve; 43-a transfer oil tank; 44-transfer oil tank exhaust valve; 45-a transfer oil tank blow-down valve; 46-clean oil tank return valve; 47-a clean oil tank; 48-purge valve of clean oil tank; 49-clean oil tank blowoff valve; 50-a circulating oil pump; 51-a second pressure sensor; 52-a second temperature sensor; 53-clean oil tank inlet valve; 54-oil tank cleaning electromagnetic valve; 55-test piece; and 56-oil discharge pump.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, in an embodiment of the present invention, a lubricating oil purifying system is provided, which is mainly used for improving the cleanliness of lubricating oil, and meanwhile, the power assembly can be flushed, so that the whole power assembly and the cleanliness of the lubricating oil can be improved. Specifically, the lubricating oil purification system comprises an oil inlet pipe, a heat exchanger 3, a waste oil tank 7, a primary filter 11, a heater 12, a vacuum separator 18, a multi-stage filter and a clean oil tank 47 which are connected in sequence; the multi-stage filter comprises a filtering pipe, an oil outlet pump 20, a one-way valve 21 and a plurality of secondary filters; one end of the filter pipe is connected with the vacuum separator 18, and the other end is sequentially connected with the oil outlet pump 20, the one-way valve 21, the plurality of secondary filters and the clean oil tank 47.
The lubricating oil purification system of the invention adopts the heating evaporation principle, the vacuum dehydration principle and the filtration principle to realize the purification purpose of oil, wherein the heating evaporation principle is as follows: the heater 12 heats the lubricating oil, reduces the viscosity of the lubricating oil, enhances the fluidity, evaporates the water in the lubricating oil, and is beneficial to the purification work of the lubricating oil; according to the vacuum dehydration principle, after vacuum flash evaporation is carried out on the lubricating oil by using the vacuum separator 18, water in the lubricating oil can be separated from the lubricating oil, so that the water in the lubricating oil is further taken out; the filtration principle makes impurity and lubricating oil separation in the lubricating oil under the effect of low viscosity filter core through multistage filter under the higher temperature of lubricating oil temperature, and lubricating oil impurity can be less and less under the filter core effect under multistage filtration to get rid of the effect of moisture and impurity in the lubricating oil, reach the purpose of purifying lubricating oil. The lubricating oil purification system disclosed by the invention greatly improves the lubricating oil purification efficiency by combining triple purification of heating evaporation, vacuum dehydration and filtration, and repeated tests show that the lubricating oil purification system can fully meet the design and use requirements, and simultaneously achieves the purposes of reducing the shutdown time, improving the productivity, reducing the consumption of a product filter and the like.
Preferably, in another embodiment of the present invention, a first branch pipe is disposed at one end of the filtering pipe connected to the oil outlet pump 20, a plurality of secondary branch pipes are disposed at the other end of the first branch pipe, and the other ends of the plurality of secondary branch pipes are respectively connected to a pipeline between the check valve 21 and a secondary filter and a pipeline between two adjacent secondary filters; each secondary branch pipe is provided with an isolation valve; a first pressure sensor 22 and a pressure gauge are arranged on a pipeline between the one-way valve 21 and the secondary filter; and pressure gauges are arranged on the pipelines between all two adjacent secondary filters. By arranging the first pressure sensor 22 and the pressure gauge, the pressure of the lubricating oil in the pipeline between the one-way valve 21 and the secondary filter and the pressure of the lubricating oil in the pipeline between two adjacent secondary filters can be monitored conveniently in real time.
Through setting up secondary branch pipe, prevent that the system from influencing normal function because a pipeline blocks up, based on the setting of secondary branch pipe, under a pipeline block up's condition, the system still can normally operate. The isolation valves are arranged on the secondary branch pipes to bypass, so that the fluid is normally prevented from entering the secondary branch pipes, and the fluid enters the secondary branch pipes through the isolation valves when the main pipeline is blocked.
Specifically, in this embodiment, 4 secondary filters are provided, which are the secondary filter 25, the tertiary filter 29, the quaternary filter 33 and the quintuple filter 38, 4 isolation valves are provided, which are the first isolation valve 23, the second isolation valve 27, the third isolation valve 31 and the fourth isolation valve 35, and 4 pressure gauges are provided, which are the first pressure gauge 24, the second pressure gauge 28, the third pressure gauge 32 and the fourth pressure gauge 37.
Preferably, in another embodiment of the present invention, an oil inlet valve 1 is disposed on an oil inlet pipe, a first temperature sensor 14 is disposed on a pipeline between a heat exchanger inlet valve 4 and a heat exchanger outlet valve heater 5, 12 disposed on a heat exchanger 3 and a vacuum separator 18, a heater blow-off valve 13 is disposed on the heater 12, a waste oil tank vent valve 6 is disposed on a waste oil tank 7, a vacuum separator vent valve 17 and a vacuum separator blow-off valve 19 are disposed on the vacuum separator 18, and a secondary filter blow-off valve is disposed on each secondary filter.
The first temperature sensor 14 is arranged to facilitate real-time monitoring of the temperature of the lubricant oil heated by the heater 12, so as to adjust the power of the heater 12.
Preferably, in a further embodiment of the present invention, an oil outlet solenoid valve 15 and an oil outlet valve 16 are connected in parallel to a pipeline between the heater 12 and the vacuum separator 18. Remote control is realized by arranging the oil outlet electromagnetic valve 15, redundancy is realized by arranging the oil outlet valve 16, and control can be realized by manually operating the oil outlet valve 16 when the oil outlet electromagnetic valve 15 fails or is necessary.
Preferably, in a further embodiment of the present invention, the filter further comprises a transfer oil tank 43, an inlet of the transfer oil tank 43 is connected to a pipeline between the secondary filter and the clean oil tank 47, and an outlet is connected to the primary filter 11; a transfer oil inlet valve 41 is arranged at the inlet of the transfer oil tank 43, and a transfer oil tank outlet valve 9 is arranged at the outlet; a clean oil tank inlet valve 42 is arranged on a pipeline between the clean oil tank 47 and the secondary filter; and a transfer oil tank vent valve 44 and a transfer oil tank blow-down valve 45 are arranged on the transfer oil tank 43. Through setting up transfer oil tank 43, prevent lubricating oil cross contamination, improve the reliability of lubricating oil.
Preferably, in another embodiment of the present invention, the present invention further comprises a circulation pipeline, wherein the circulation pipeline 36 is disposed on the circulation pipeline, one end of the circulation pipeline is connected to the inlet of the heater 12, and the other end of the circulation pipeline is connected to a pipeline between the terminal secondary filter and the adjacent secondary filter, wherein the terminal secondary filter is a secondary filter connected to the clean oil tank 47 in the plurality of secondary filters. Through setting up circulation pipeline, realize the circulation purification of lubricating oil to guarantee that lubricating oil can reach final purification requirement.
Preferably, in a further embodiment of the invention, a sampling valve 40 is provided in the line between the clean oil tank 47 and the secondary filter. Through setting up sample valve 40, can follow the pipeline and take a sample and observe, in time know the present purification condition of lubricating oil.
Preferably, in a further embodiment of the present invention, the outlet of the clean oil tank 47 is connected to the inlet of the primary filter 11, and the clean oil tank outlet valve 10 is provided in the pipeline between the clean oil tank 47 and the primary filter 11. By connecting the outlet of the clean oil tank 47 to the inlet of the primary filter 11, re-purification of the lubricating oil in the clean oil tank 47 is achieved.
Preferably, in another embodiment of the present invention, the test device further includes a circulating oil pump 50, a test piece 55, an oil drain pump 56, a first clean oil tank branch pipe, a second clean oil tank branch pipe, and a test oil pipe; one end of the first clean oil tank branch pipe is connected with the clean oil tank 47, the other end of the first clean oil tank branch pipe is sequentially connected with the circulating oil pump 50 and one end of the second clean oil tank branch pipe, and a clean oil tank oil inlet valve 53 is arranged on the first clean oil tank branch pipe; the other end of the second clean oil tank branch pipe is connected with a clean oil tank 47, and a clean oil tank return valve 46 is arranged on the second clean oil tank branch pipe; one end of the oil test pipe is connected with the first clean oil tank branch pipe and the second clean oil tank branch pipe, and the other end of the oil test pipe is sequentially connected with the test piece 55, the oil drain pump 56 and the heat exchanger 3. Through setting up test piece 55, realize the experimental use of the lubricating oil after the purification to guarantee that the lubricating oil after the purification can satisfy the user demand.
Preferably, in a further embodiment of the present invention, a second pressure sensor 51 and a second temperature sensor 52 are disposed on the first clean oil tank branch pipe, a clean oil tank vent valve 48 and a clean oil tank drain valve 49 are disposed on the clean oil tank 47, and an oil inlet solenoid valve 2 is disposed on a pipeline between the oil drain pump 56 and the heat exchanger 3. By arranging the second pressure sensor 51 and the second temperature sensor 52, the temperature and the pressure of the pipeline are monitored in real time, and the safety of the system is improved. Remote control is realized by arranging the oil inlet electromagnetic valve 2, redundancy is realized by arranging the oil inlet valve 1, and the oil inlet electromagnetic valve 2 can be manually operated to realize control when a fault occurs or is necessary.
The following describes the lubricating oil purification system of the present invention with reference to specific working processes:
the lubricating oil purification system comprises a waste oil tank purification process, a transfer oil tank purification process, a clean oil tank purification process and an oiling process, wherein the waste oil tank purification process comprises the following steps: the circulation purification function of the lubricating oil in the waste oil tank is realized, the polluted lubricating oil is mainly extracted from the waste oil tank 7, the purification work of the polluted lubricating oil in the waste oil tank 7 is completed through the coarse filter, the heater 12, the vacuum separator 18 and the multi-stage filter, the purified lubricating oil can be stored in the transfer oil tank 43 or the clean oil tank 47, and the purification work of the lubricating oil in the waste oil tank 7 is completed. Purifying a transfer oil tank: the circulation purification function of the lubricating oil in the transfer oil tank 47 is realized, the lubricating oil which is polluted or meets the requirement of cleanliness is mainly extracted from the transfer oil tank 43, the purification work of the polluted lubricating oil in the transfer oil tank 43 is completed through the coarse filter, the heater 12, the vacuum separator 18 and the multi-stage filter, the purified lubricating oil can be stored in the transfer oil tank 43 or the clean oil tank 47, and the purification work of the lubricating oil in the transfer oil tank 43 is completed. Purification process of the clean oil tank 47: the realization is to the circulation purification performance of lubricating oil in the oil purification case 47, samples lubricating oil in the oil purification case 47, detects its cleanliness, monitors whether it reaches technical requirement, according to the testing result, carries out the purification of lubricating oil. The purification of the contaminated lubricating oil in the clean oil tank 47 is completed by mainly completing the extraction of the contaminated lubricating oil from the clean oil tank 47 or the extraction of the lubricating oil which does not reach the cleanliness requirement, passing through the strainer, the heater 12, the vacuum separator 18 and the multi-stage filter, and the purification of the contaminated lubricating oil in the clean oil tank 47 can be completed by storing the purified lubricating oil in the intermediate oil tank 43 or the clean oil tank 47, thereby completing the purification of the lubricating oil in the clean oil tank 47.
Specifically, the purification process of the waste oil tank is as follows: contaminated lubricating oil enters a heat exchanger 3 through an oil inlet valve 1, is cooled and then enters a waste oil tank 7 to finish the filling of the contaminated lubricating oil, meanwhile, a waste oil tank exhaust valve 6 can exhaust to avoid over-high pressure, the contaminated lubricating oil enters a primary oil filter 11 through a waste oil tank outlet valve 8, enters a heater 12 to heat the lubricating oil after being primarily filtered, a heater blow-down valve 13 is used for blow-down when impurities are more, simultaneously, a first temperature sensor 14 measures the temperature of the lubricating oil, the lubricating oil enters a vacuum separator 18 through an oil outlet electromagnetic valve 15 or an oil outlet valve 16 to realize the separation process of gas and the lubricating oil, the exhaust and blow-down can be carried out through a vacuum separator exhaust valve 17 and a vacuum separator blow-down valve 19, the lubricating oil flows into a one-way valve 21 through an oil outlet pump 20 at the moment, and a first pressure sensor 22 measures the system pressure, the lubricating oil respectively passes through a secondary filter 25, a tertiary filter 29 and a quaternary filter 33 to complete the filtering work of the lubricating oil, meanwhile, a first pressure gauge 24, a second pressure gauge 28 and a third pressure gauge 32 measure the pressure of respective pipelines, a secondary filter blow-down valve 26, a tertiary filter blow-down valve 30 and a quaternary filter blow-down valve 34 respectively blow down, the lubricating oil enters a fifth filter 38 at the moment, a fourth pressure gauge 37 and a fifth filter blow-down valve 39 measure the pressure and blow-down, the lubricating oil can enter a transit oil tank 43 or a clean oil tank 47 at the moment to complete the purification work of the lubricating oil, and the lubricating oil meeting the requirements can be filled into a test piece 55.
Purifying a transfer oil tank: the lubricating oil which needs to be filtered or in other states is stored in a transfer oil tank 43, enters a primary oil filter 11 through an oil outlet valve 9 of the transfer oil tank, enters a heater 12 for heating the lubricating oil after being primarily filtered, is discharged by using a heater blow-down valve 13 when impurities are more, simultaneously, the temperature of the lubricating oil is measured by a first temperature sensor 14, the lubricating oil enters a vacuum separator 18 through an oil outlet electromagnetic valve 15 or an oil outlet valve 16 at the moment, the separation process of gas and the lubricating oil is realized, the air and the sewage can be discharged through an exhaust valve 17 of the vacuum separator and a blow-down valve 19 of the vacuum separator, the lubricating oil flows into a one-way valve 21 through an oil outlet pump 20 at the moment, a first pressure sensor 22 measures the system pressure, the lubricating oil respectively passes through a secondary filter 25, a tertiary filter 29 and a quaternary filter 33, The second pressure gauge 28 and the third pressure gauge 32 measure the pressure of respective pipelines, the second filter blow-down valve 26, the third filter blow-down valve 30 and the fourth filter blow-down valve 34 blow-down respectively, the lubricating oil enters the fifth filter 38, the fifth pressure gauge 37 and the fifth filter blow-down valve 39 measure the pressure and blow-down, at the moment, the lubricating oil can enter the transit oil tank 43 or the clean oil tank 47 to finish the purification work of the lubricating oil, and the lubricating oil meeting the requirements can be filled into the test piece 55.
Purifying the clean oil tank: the oil in the purified oil tank 47 is periodically detected to see whether the cleanliness requirement is met, if not, the oil outlet valve 10 of the purified oil tank is opened, the oil enters the primary oil filter 11, after primary filtration, the oil enters the heater 12 to heat the lubricating oil, when the impurities are more, the heater blow-down valve 13 is used for blow-down, meanwhile, the first temperature sensor 14 measures the temperature of the lubricating oil, the lubricating oil enters the vacuum separator 18 through the oil outlet electromagnetic valve 15 or the oil outlet valve 16, the separation process of gas and the lubricating oil is realized, the air and blow-down can be performed through the exhaust valve 17 of the vacuum separator and the blow-down valve 19 of the vacuum separator, at the moment, the lubricating oil flows into the one-way valve 21 through the oil outlet pump 20, the first pressure sensor 22 measures the system pressure, and the lubricating oil respectively passes through the secondary filter 25, the tertiary filter, meanwhile, the first pressure gauge 24, the second pressure gauge 28 and the third pressure gauge 32 measure respective pipeline pressures, the second-stage filter blowdown valve 26, the third-stage filter blowdown valve 30 and the fourth-stage filter blowdown valve 34 respectively blowdown, lubricating oil enters the fifth-stage filter 38, the pressure gauge 437 and the fifth-stage filter blowdown valve 39 measure pressure and blowdown, the lubricating oil can enter the clean oil tank 47 to complete the purification work of the lubricating oil, and the lubricating oil meeting requirements can be filled into the test piece 55.
An oiling loop: and the circulating oil pump 50 and the clean oil tank electromagnetic valve 54 are opened, so that lubricating oil meeting the requirements can be filled into the test piece 55. Meanwhile, after the test of the test piece 55 is finished, the contaminated lubricating oil can enter the waste oil tank 7 through the oil discharge pump 56, and the collection of the waste oil is completed.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. A lubricating oil purification system is characterized by comprising an oil inlet pipe, a heat exchanger (3), a waste oil tank (7), a primary filter (11), a heater (12), a vacuum separator (18), a multi-stage filter and a clean oil tank (47) which are sequentially connected; the multi-stage filter comprises a filtering pipe, an oil outlet pump (20), a one-way valve (21) and a plurality of secondary filters; one end of the filtering and cleaning pipe is connected with the vacuum separator (18), and the other end is sequentially connected with the oil outlet pump (20), the one-way valve (21), the secondary filters and the clean oil tank (47).
2. The lubricating oil purification system of claim 1, wherein a first branch pipe is arranged at one end of the filtering pipe connected with the oil outlet pump (20), a plurality of secondary branch pipes are arranged at the other end of the first branch pipe, and the other ends of the plurality of secondary branch pipes are respectively connected with a pipeline between the one-way valve (21) and the secondary filter and a pipeline between two adjacent secondary filters; each secondary branch pipe is provided with an isolation valve; a first pressure sensor (22) and a pressure gauge are arranged on a pipeline between the one-way valve (21) and the secondary filter; and pressure gauges are arranged on the pipelines between all two adjacent secondary filters.
3. The system for purifying lubricating oil according to claim 1, wherein an oil inlet valve (1) is arranged on the oil inlet pipe, a first temperature sensor (14) is arranged on a pipeline between the heater (12) and the vacuum separator (18), a heater blow-off valve (13) is arranged on the heater (12), a waste oil tank vent valve (6) is arranged on the waste oil tank (7), a vacuum separator vent valve (17) and a vacuum separator blow-off valve (19) are arranged on the vacuum separator (18), and a secondary filter blow-off valve is arranged on each secondary filter.
4. The system according to claim 1, wherein the outlet solenoid valve (15) and the outlet valve (16) are connected in parallel in a line between the heater (12) and the vacuum separator (18).
5. The system for purifying lubricating oil according to claim 1, further comprising a transfer oil tank (43), wherein an inlet of the transfer oil tank (43) is connected to a pipe between the secondary filter and the clean oil tank (47), and an outlet thereof is connected to the primary filter (11); a transfer oil inlet valve (41) is arranged at the inlet of a transfer oil tank (43), and an oil outlet valve (9) of the transfer oil tank is arranged at the outlet of the transfer oil tank; a clean oil tank inlet valve (42) is arranged on a pipeline between the clean oil tank (47) and the secondary filter; and a transfer oil tank exhaust valve (44) and a transfer oil tank blow-down valve (45) are arranged on the transfer oil tank (43).
6. The system of claim 1, further comprising a circulation line, wherein the circulation line has a circulation valve (36) disposed thereon, one end of the circulation line is connected to the inlet of the heater (12), and the other end of the circulation line is connected to a line between the terminal secondary filter and an adjacent secondary filter, wherein the terminal secondary filter is one of the plurality of secondary filters connected to the clean oil tank (47).
7. The system for purification of lubricating oil according to claim 1, characterized in that a sampling valve (40) is arranged in the line between the clean oil tank (47) and the secondary filter.
8. The system for purification of lubricating oil according to claim 1, characterized in that the outlet of the clean oil tank (47) is connected to the inlet of the primary filter (11) and a clean oil tank outlet valve (10) is arranged in the line between the clean oil tank (47) and the primary filter (11).
9. The lubricating oil purification system according to claim 1, further comprising a circulating oil pump (50), a test piece (55), a drain pump (56), a first clean oil tank branch pipe, a second clean oil tank branch pipe, and a test oil pipe; one end of the first clean oil tank branch pipe is connected with a clean oil tank (47), the other end of the first clean oil tank branch pipe is sequentially connected with a circulating oil pump (50) and one end of the second clean oil tank branch pipe, and a clean oil tank oil inlet valve (53) is arranged on the first clean oil tank branch pipe; the other end of the second clean oil tank branch pipe is connected with a clean oil tank (47), and a clean oil tank return valve (46) is arranged on the second clean oil tank branch pipe; one end of the oil testing pipe is connected with the first clean oil tank branch pipe and the second clean oil tank branch pipe, and the other end of the oil testing pipe is sequentially connected with a test piece (55), an oil drainage pump (56) and the heat exchanger (3).
10. The system for purifying lubricating oil according to claim 9, characterized in that a second pressure sensor (51) and a second temperature sensor (52) are arranged on the first clean oil tank branch, a clean oil tank vent valve (48) and a clean oil tank blow-off valve (49) are arranged on the clean oil tank (47), and an oil inlet solenoid valve (2) is arranged on the pipeline between the oil drain pump (56) and the heat exchanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110350659.XA CN112984361A (en) | 2021-03-31 | 2021-03-31 | Lubricating oil purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110350659.XA CN112984361A (en) | 2021-03-31 | 2021-03-31 | Lubricating oil purification system |
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| Publication Number | Publication Date |
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| CN112984361A true CN112984361A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110350659.XA Pending CN112984361A (en) | 2021-03-31 | 2021-03-31 | Lubricating oil purification system |
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| CN (1) | CN112984361A (en) |
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| JPH10122487A (en) * | 1996-10-14 | 1998-05-15 | Abe Jiyunji | Oil purifying device |
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| KR20160005410A (en) * | 2014-07-07 | 2016-01-15 | 전덕진 | Lubricant Dehydrating Device using Vacuum |
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| CN108970234A (en) * | 2018-08-21 | 2018-12-11 | 河北科技师范学院 | A kind of photovoltaic laminating machine pumping fluid filtration system |
| CN111001217A (en) * | 2019-12-20 | 2020-04-14 | 紫荆三益过滤技术有限责任公司 | Dirty oil filtering and purifying device polluted by high-concentration ultrafine particle pollutants |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10122487A (en) * | 1996-10-14 | 1998-05-15 | Abe Jiyunji | Oil purifying device |
| CN201997184U (en) * | 2010-12-13 | 2011-10-05 | 重庆高智滤油机设备制造有限公司 | Purifying equipment for engine lubricating oil and lifting system hydraulic oil of mining dumper |
| CN203373325U (en) * | 2013-07-01 | 2014-01-01 | 中国十七冶集团有限公司 | Device for filtering and purifying industrial hydraulic oil and lubricating oil |
| CN203663559U (en) * | 2013-12-18 | 2014-06-25 | 杨继新 | Energy-saving oil purifier |
| CN103790898A (en) * | 2014-02-26 | 2014-05-14 | 安徽合力股份有限公司 | Cleaning and purifying device used for hydrodynamic transmission |
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| CN108970234A (en) * | 2018-08-21 | 2018-12-11 | 河北科技师范学院 | A kind of photovoltaic laminating machine pumping fluid filtration system |
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Application publication date: 20210618 |