CN106092690A - A kind of method of automatic classification collection test waste oil under negative pressure of vacuum - Google Patents
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum Download PDFInfo
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- CN106092690A CN106092690A CN201610503555.7A CN201610503555A CN106092690A CN 106092690 A CN106092690 A CN 106092690A CN 201610503555 A CN201610503555 A CN 201610503555A CN 106092690 A CN106092690 A CN 106092690A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The present invention relates to a kind of method of automatic classification collection test waste oil under negative pressure of vacuum, test waste oil is carried out detection zone through oil trap inflow oil colours detection device and separates fresh oil or old oil；If fresh oil, then flow into fresh oil tight storage case through oil distributing pipe and store；Otherwise flow into old oil seal fuel reserve tank through oil distributing pipe to store；Monitored the vacuum in fresh oil tight storage case and old oil seal fuel reserve tank simultaneously by pressure transmitter in real time, if the vacuum in fresh oil or old oil seal fuel reserve tank is less than 0.05Mpa, then starts vacuum pump and carry out evacuation；Fresh oil and old oil seal fuel reserve tank are respectively communicated with a fresh oil and old oil floating ball lever meter, for monitoring fresh oil and the oil mass of old oil seal fuel reserve tank, if the oil mass in current fresh oil or old oil seal fuel reserve tank reaches specific threshold, then carry out oil extraction by an oil drain pump；The beneficial effects of the present invention is: realize automatic classification collection test waste oil, delay the speed of waste oil oxidation Decomposition, reduce the generation of volatile oil steam.
Description
Technical field
The present invention relates to oil for electric power test specimen processing means, particularly relate to a kind of receipts of automatically classifying under negative pressure of vacuum
The method of collection test waste oil.
Background technology
In oil for electric power experiment work, it is often necessary to the pretreatment operation that insulating oil sample is correlated with, as to oil
The part of detecting of test apparatus, test vessel carry out oil cleaning, the volume of insulating oil sample are carried out regulation accurately etc..Due to
Pilot project is more, adds that test apparatus distribution ratio is relatively decentralized, and testing crew it is frequently necessary to the mobile glass equipped with insulating oil sample
Glass container carries out the test of oil sample on different test apparatuses.In the most mobile insulating oil sample, easily because of test
Human users is improper occurs that insulating oil sample surprisingly runs off, sample is contaminated, shuttle and the phenomenon such as tester is broken, sternly
Ghost image rings carrying out of oil test work.
Additionally, also can produce substantial amounts of test waste oil in insulating oil process of the test, conventional way is these to be tested
Waste oil is collected, then by direct for oil waste treatment in being poured directly into unlimited interim waste oil bucket.Owing to interim waste oil bucket does not has
Complete seal approach so that test waste oil exposes the most in atmosphere to be deposited, and it is continuous under the effect of various extraneous factors
Oxidation Decomposition, produce the most harmful volatile oil steam, the severe contamination environment of test chamber.And many test is given up
Oil itself or fresh oil, after being introduced into interim waste oil bucket, it mixes with old oil, due to cannot categorised collection, lose recycling
It is worth, waste treatment can only be made together with old oil, not only cause a large amount of meaningless loss of insulating oil, the most easily because dealing with improperly
Leakage is occurred to pollute environment.
Summary of the invention
It is an object of the invention to for above weak point, it is provided that a kind of automatic classification collection test under negative pressure of vacuum
The method of waste oil, it is achieved automatic classification collection test waste oil, and store.
The present invention solves the scheme that technical problem used: a kind of automatic classification collection test waste oil under negative pressure of vacuum
Method, comprise the following steps:
Step S1: before starting to collect test waste oil, to being respectively used to store fresh oil and the fresh oil tight storage case of old oil and old oil
Tight storage case carries out extracting vacuum by a vacuum pump, monitors fresh oil tight storage case respectively by a pressure transmitter simultaneously
With the vacuum in old oil seal fuel reserve tank；
Step S2: start to collect test waste oil；
Step S3: test waste oil is flowed into an oil colours detection device through an oil trap and carries out detection zone and separate fresh oil or old oil；If
The testing result that oil colours detection device obtains is fresh oil, then the oil distributing pipe by being connected with oil colours detection device flows into fresh oil
Tight storage case stores；Otherwise flow into old oil seal fuel reserve tank through oil distributing pipe to store；
Step S4: simultaneously monitored the vacuum in fresh oil tight storage case and old oil seal fuel reserve tank by pressure transmitter in real time
Degree, if the vacuum in fresh oil tight storage case or old oil seal fuel reserve tank is less than-0.05Mpa, then starts vacuum pump and takes out
Vacuum；
Step S5: fresh oil tight storage case and old oil seal fuel reserve tank are respectively communicated with a fresh oil floating ball lever meter and old oil float ball liquid
Position meter, for monitoring fresh oil tight storage case and the oil mass of old oil seal fuel reserve tank, if current fresh oil tight storage case or old oil
Oil mass in tight storage case reaches specific threshold, then stored up reply fresh oil tight storage case or old oil seal by an oil drain pump
Fuel tank carries out oil extraction；
Step S6: go to step S3, continues test waste oil is carried out classification storage.
Further, described oil colours detection device includes an oil colours detection pipe, is arranged at the infrared of oil colours detection pipe outer wall
Photosensitive detector, described oil colours detection pipe two ends are connected with oil trap and oil distributing pipe respectively.
Further, described oil colours detection pipe with connection screw thread and is square colourless transparent resin glass for two ends
Pipe；Described infrared light responsive detectors is made up of a pair infrared light emission pipe and light sensor, and a pair infrared light emission pipe is respectively
Be symmetricly set in the square outer wall both sides of oil colours detection pipe through a fixed mount, described light sensor and a controller are electrically connected.
Further, described oil distributing pipe is inverted T shape, and upper end one check valve of described oil distributing pipe is examined with described oil colours
Test tube is connected, and the outlet of two other lower end is close with described fresh oil through a fresh oil branch electromagnetic valve and old oil branch electromagnetic valve respectively
Envelope fuel reserve tank and an old oil seal fuel reserve tank connection, described check valve, fresh oil branch electromagnetic valve and old oil branch electromagnetic valve all with
Described controller is electrically connected.
Further, described fresh oil tight storage case and old oil seal fuel reserve tank through a T-shaped vacuum-pumping tube with described
Vacuum pump is connected；Described pressure transmitter is arranged on described vacuum-pumping tube, and is additionally provided with a vacuum on described vacuum-pumping tube
Stop valve, described vacuum pump, vaccum stop valve are electrically connected with described controller with pressure transmitter.
Further, the entrance of described oil drain pump is in charge of and fresh oil tight storage case and old oil seal fuel reserve tank through an oil extraction
Be connected, described oil extraction be in charge of be provided with new fuel tank oil drain solenoid valve and old fuel tank oil drain solenoid valve respectively with fresh oil tight storage
Case is connected with the bottom of old oil seal fuel reserve tank, and described oil extraction delivery side of pump and an oil drain hose are connected；Described oil drain pump,
New fuel tank oil drain solenoid valve and old fuel tank oil drain solenoid valve are electrically connected with described controller.
Further, described controller is also electrically connected a charging module, described charging module through a telescopic attaching plug with
External power source is electrically connected.
Compared with prior art, the present invention has following beneficial effect: by automatic classification collection oil storage in negative pressure of vacuum,
The waste oil produced in test can be carried out categorised collection vacuum sealed storage automatically, effectively delay waste oil oxidation Decomposition, subtract
Few volatile oil steam pollution to the working environment of test chamber, the most farthest improves the recycling of test waste oil
Rate.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings patent of the present invention is further illustrated.
Fig. 1 is the operational block diagram of the oil storage method of automatically classifying of the embodiment of the present invention.
Detailed description of the invention
The present invention is further described with detailed description of the invention below in conjunction with the accompanying drawings.
The embodiment of the present invention provides a kind of method of automatic classification collection test waste oil under negative pressure of vacuum, including following step
Rapid:
Step S1: before starting to collect test waste oil, to being respectively used to store fresh oil and the fresh oil tight storage case of old oil and old oil
Tight storage case carries out extracting vacuum by a vacuum pump, monitors fresh oil tight storage case respectively by a pressure transmitter simultaneously
With the vacuum in old oil seal fuel reserve tank；
Step S2: start to collect test waste oil；
Step S3: test waste oil is flowed into an oil colours detection device through an oil trap and carries out detection zone and separate fresh oil or old oil；If
The testing result that oil colours detection device obtains is fresh oil, then the oil distributing pipe by being connected with oil colours detection device flows into fresh oil
Tight storage case stores；Otherwise flow into old oil seal fuel reserve tank through oil distributing pipe to store；
Step S4: simultaneously monitored the vacuum in fresh oil tight storage case and old oil seal fuel reserve tank by pressure transmitter in real time
Degree, if the vacuum in fresh oil tight storage case or old oil seal fuel reserve tank is less than-0.05Mpa, then starts vacuum pump and takes out
Vacuum；
Step S5: fresh oil tight storage case and old oil seal fuel reserve tank are respectively communicated with a fresh oil floating ball lever meter and old oil float ball liquid
Position meter, for monitoring fresh oil tight storage case and the oil mass of old oil seal fuel reserve tank, if current fresh oil tight storage case or old oil
Oil mass in tight storage case reaches specific threshold, then stored up reply fresh oil tight storage case or old oil seal by an oil drain pump
Fuel tank carries out oil extraction；
Step S6: go to step S3, continues test waste oil is carried out classification storage.
From the foregoing, the beneficial effects of the present invention is: test waste oil detects through oil colours detection pipe through oil trap
Differentiation is fresh oil or old oil, if fresh oil, opens fresh oil branch electromagnetic valve and stores at fresh oil tight storage case, otherwise beat
Open the old oil branch electromagnetic valve old oil seal fuel reserve tank of inflow to store.During collecting storage, when fresh oil tight storage case
Or the vacuum in old oil seal fuel reserve tank is when declining and be less than-0.05Mpa, controller is by the vaccum stop valve on vacuum-pumping tube
Open and start vacuum pump, to fresh oil tight storage case or the old close evacuation of oil seal fuel reserve tank；When vacuum exceed-
Automatically vacuum pump and vacuum cut-off electromagnetic valve being closed after 0.05Mpa, repeating above procedure can be so that the test waste oil collected
All the time store in the environment of constant vacuum negative pressure, thus delay the speed of waste oil oxidation Decomposition, reduce the product of volatile oil steam
Raw.
Further, described oil colours detection device includes an oil colours detection pipe, is arranged at the infrared of oil colours detection pipe outer wall
Photosensitive detector, described oil colours detection pipe two ends are connected with oil trap and oil distributing pipe respectively.
Further, described oil colours detection pipe with connection screw thread and is square colourless transparent resin glass for two ends
Pipe；Described infrared light responsive detectors is made up of a pair infrared light emission pipe and light sensor, and a pair infrared light emission pipe is respectively
Be symmetricly set in the square outer wall both sides of oil colours detection pipe through a fixed mount, described light sensor and a controller are electrically connected.Work
By the infrared beam that sends of infrared light emission pipe of oil colours detection pipe side through internal fluid when making, be mapped in to photosensitive
On sensor receiving plane.When oil-free in oil colours detection pipe, infrared beam is stable, and it is not triggered.When there being long-pending oil due to stream
There is aberration in the oil colours of the fresh oil and old oil that enter oil colours detection pipe, the infrared beam being radiated on light sensor receiving plane is strong and weak
Also different so that the resistance generation respective change of photoconductive resistance, thus change output voltage.When output voltage reaches the number of setting
During value, its control signal produced can control corresponding fresh oil branch electromagnetic valve or old oil branch electromagnetic valve is opened, it is achieved right
The automatic classification of test waste oil.
Further, described oil distributing pipe is inverted T shape, and upper end one check valve of described oil distributing pipe is examined with described oil colours
Test tube is connected, and the outlet of two other lower end is close with described fresh oil through a fresh oil branch electromagnetic valve and old oil branch electromagnetic valve respectively
Envelope fuel reserve tank and an old oil seal fuel reserve tank connection, described check valve, fresh oil branch electromagnetic valve and old oil branch electromagnetic valve all with
Described controller is electrically connected.
Further, described fresh oil tight storage case and old oil seal fuel reserve tank through a T-shaped vacuum-pumping tube with described
Vacuum pump is connected；Described pressure transmitter is arranged on described vacuum-pumping tube, and is additionally provided with a vacuum on described vacuum-pumping tube
Stop valve, described vacuum pump, vaccum stop valve are electrically connected with described controller with pressure transmitter.
Further, the entrance of described oil drain pump is in charge of and fresh oil tight storage case and old oil seal fuel reserve tank through an oil extraction
Be connected, described oil extraction be in charge of be provided with new fuel tank oil drain solenoid valve and old fuel tank oil drain solenoid valve respectively with fresh oil tight storage
Case is connected with the bottom of old oil seal fuel reserve tank, and described oil extraction delivery side of pump and an oil drain hose are connected；Described oil drain pump,
New fuel tank oil drain solenoid valve and old fuel tank oil drain solenoid valve are electrically connected with described controller.New fuel tank floating ball lever meter and old fuel tank float
Ball liquidometer detects the oil mass in fresh oil tight storage case and old oil seal fuel reserve tank respectively, if beyond max-thresholds, by row
Oil pump carries out oil extraction respectively.
Further, described controller is also electrically connected a charging module, described charging module through a telescopic attaching plug with
External power source is electrically connected.Described telescopic power connection is by a long 3m, diameter 2.5mm2Three core power lines and three hole power supplys connect
Head composition, is received by drum, is mainly used in charging module and charges and the external work electricity when charging module electricity exhausts
Source.
In sum, a kind of method of automatic classification collection test waste oil under negative pressure of vacuum that the present invention provides, it is possible to
Realize the test automatic classification collection of waste oil, vacuum sealed storage and fast transfer, use flexibly, easy to operate.
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered
It is understood by, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (7)
1. the method for automatic classification collection test waste oil under negative pressure of vacuum, it is characterised in that comprise the following steps:
Step S1: before starting to collect test waste oil, to being respectively used to store fresh oil and the fresh oil tight storage case of old oil and old oil
Tight storage case carries out extracting vacuum by a vacuum pump, monitors fresh oil tight storage case respectively by a pressure transmitter simultaneously
With the vacuum in old oil seal fuel reserve tank；
Step S2: start to collect test waste oil；
Step S3: test waste oil is flowed into an oil colours detection device through an oil trap and carries out detection zone and separate fresh oil or old oil；If
The testing result that oil colours detection device obtains is fresh oil, then the oil distributing pipe by being connected with oil colours detection device flows into fresh oil
Tight storage case stores；Otherwise flow into old oil seal fuel reserve tank through oil distributing pipe to store；
Step S4: simultaneously monitored the vacuum in fresh oil tight storage case and old oil seal fuel reserve tank by pressure transmitter in real time
Degree, if the vacuum in fresh oil tight storage case or old oil seal fuel reserve tank is less than-0.05Mpa, then starts vacuum pump and takes out
Vacuum；
Step S5: fresh oil tight storage case and old oil seal fuel reserve tank are respectively communicated with a fresh oil floating ball lever meter and old oil float ball liquid
Position meter, for monitoring fresh oil tight storage case and the oil mass of old oil seal fuel reserve tank, if current fresh oil tight storage case or old oil
Oil mass in tight storage case reaches specific threshold, then stored up reply fresh oil tight storage case or old oil seal by an oil drain pump
Fuel tank carries out oil extraction；
Step S6: go to step S3, continues test waste oil is carried out classification storage.
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum the most according to claim 1, its feature exists
In: described oil colours detection device includes an oil colours detection pipe, is arranged at the infrared light responsive detectors of oil colours detection pipe outer wall, described
Oil colours detection pipe two ends are connected with oil trap and oil distributing pipe respectively.
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum the most according to claim 2, its feature exists
In: described oil colours detection pipe with connection screw thread and is square colourless transparent resin glass pipe for two ends；Described infrared photosensitive
Detector is made up of a pair infrared light emission pipe and light sensor, and a pair infrared light emission pipe sets through a fixed mount symmetry respectively
Being placed in the square outer wall both sides of oil colours detection pipe, described light sensor and a controller are electrically connected.
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum the most according to claim 4, its feature exists
In: described oil distributing pipe is inverted T shape, and upper end one check valve of described oil distributing pipe is connected, separately with described oil colours detection pipe
The outlet of outer two lower ends is respectively through a fresh oil branch electromagnetic valve and old oil branch electromagnetic valve and described fresh oil tight storage case and
Old oil seal fuel reserve tank connects, and described check valve, fresh oil branch electromagnetic valve and old oil branch electromagnetic valve are all electric with described controller
Even.
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum the most according to claim 4, its feature exists
In: described fresh oil tight storage case is connected with described vacuum pump through a T-shaped vacuum-pumping tube with old oil seal fuel reserve tank；Described
Pressure transmitter is arranged on described vacuum-pumping tube, and is additionally provided with a vaccum stop valve on described vacuum-pumping tube, described vacuum
Pump, vaccum stop valve are electrically connected with described controller with pressure transmitter.
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum the most according to claim 4, its feature exists
It is in charge of through an oil extraction in: the entrance of described oil drain pump and is connected with fresh oil tight storage case and old oil seal fuel reserve tank, described row
Oil be in charge of be provided with new fuel tank oil drain solenoid valve and old fuel tank oil drain solenoid valve respectively with fresh oil tight storage case and old oil seal
The bottom of fuel reserve tank is connected, and described oil extraction delivery side of pump and an oil drain hose are connected；Described oil drain pump, new fuel tank oil extraction electricity
Magnet valve and old fuel tank oil drain solenoid valve are electrically connected with described controller.
A kind of method of automatic classification collection test waste oil under negative pressure of vacuum the most according to claim 4, its feature exists
Also being electrically connected a charging module in: described controller, described charging module is electrically connected with external power source through a telescopic attaching plug.
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| CN201610503555.7A CN106092690B (en) | 2016-07-01 | 2016-07-01 | A method of automatic classification collection tests waste oil under negative pressure of vacuum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283054A (en) * | 2020-10-12 | 2021-01-29 | 国家电投集团广西金紫山风电有限公司 | Waste oil discharge control method, device, equipment and medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596622A (en) * | 1993-07-13 | 1997-01-21 | David V. Habif, Jr. | Method and system for extending the service life of an x-ray tube |
| CN204039357U (en) * | 2014-08-27 | 2014-12-24 | 国家电网公司 | A kind of waste oil high efficiente callback device |
| CN204891926U (en) * | 2015-08-25 | 2015-12-23 | 李向果 | Chemistry experiment platform |
-
2016
- 2016-07-01 CN CN201610503555.7A patent/CN106092690B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5596622A (en) * | 1993-07-13 | 1997-01-21 | David V. Habif, Jr. | Method and system for extending the service life of an x-ray tube |
| CN204039357U (en) * | 2014-08-27 | 2014-12-24 | 国家电网公司 | A kind of waste oil high efficiente callback device |
| CN204891926U (en) * | 2015-08-25 | 2015-12-23 | 李向果 | Chemistry experiment platform |
Non-Patent Citations (2)
| Title |
|---|
| 张楠: ""基于光谱分析的传动油液污染度传感器技术研究"", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
| 李纪等: "《矿山机电管理工程》", 31 July 1985, 煤炭工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283054A (en) * | 2020-10-12 | 2021-01-29 | 国家电投集团广西金紫山风电有限公司 | Waste oil discharge control method, device, equipment and medium |
| CN112283054B (en) * | 2020-10-12 | 2024-01-30 | 国家电投集团广西金紫山风电有限公司 | Waste oil discharge control method, device, equipment and medium |
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