CN110335746A - A kind of online full-automatic oil filtering machine and its control method - Google Patents
A kind of online full-automatic oil filtering machine and its control method Download PDFInfo
- Publication number
- CN110335746A CN110335746A CN201910608153.7A CN201910608153A CN110335746A CN 110335746 A CN110335746 A CN 110335746A CN 201910608153 A CN201910608153 A CN 201910608153A CN 110335746 A CN110335746 A CN 110335746A
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- Prior art keywords
- oil
- oil storage
- liquid level
- storage tank
- level sensor
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000001914 filtration Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 210000004262 dental pulp cavity Anatomy 0.000 claims abstract description 4
- 238000007872 degassing Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Abstract
A kind of online full-automatic oil filtering machine, there is shell in the outside of oil storage tank, oil storage pot bottom has discharge outlet to stretch out shell, heating system is mounted on the outside of oil storage tank, oil storage tank wall sets temperature sensor and temperature switch, top connects pressure sensor, inside there is height, low liquid level sensor, oil inlet nozzle is located at high liquid level sensor between roof, oil inlet pipe end has strainer in oil storage tank, fuel-displaced nozzle is between low liquid level sensor and oil storage tank lower curtate, flowline concatenates oil drain pump and accurate filter, mixing pump is connected to two root canal roads, one is lower than low liquid level sensor, one is higher than high liquid level sensor, control module is connected with device signal, acquire the switch of data and control connector part.Without human intervention, oil sample filtering degree of purity is higher.Each operational process of the filter method sets Rule of judgment, if the conditions are not met, prompts corresponding exception information, improves equipment safety reliability and stability, and contain automatic cleaning function, non-maintaining.
Description
Technical field
The invention belongs to technical field of power systems, are related to a kind of online full-automatic oil filtering machine.
Background technique
Power transformer is one of capital equipment of electric system, guarantees the safe and reliable operation of transformer, electric to improving
The power supply reliability of Force system has a very important significance.Real-time monitoring is carried out to the gas content dissolved in transformer oil,
It is to ensure safe operation of power system main method.If H2, C2H2, total hydrocarbon content are excessively high in transformer oil, change may cause
Depressor safety accident, that just needs to be filtered transformer oil recycling.
Oil filter filtering technique mainly has hand and two kinds of auto-manual system at present.Hand technology needs manually go to operate
Oil inlet oil extraction, is vacuumized, is heated, and whether is had bubble by the upper liquid level of observation oil, is determined that filtering is completed；Auto-manual system
Technology be it is automatic realize oil inlet, vacuumize, heat, it is artificial need to observe whether the upper liquid level of oil has bubble, determine to filter
It completes, then carries out oil extraction operation.
Prior art there are the problem of: no matter hand technology or auto-manual system technology, require observation liquid level whether
There is bubble to judge whether filtering is completed.This will lead to filtering degree of purity it is not high, some micro bubbles are not easy to be found, and can judge by accident
Oil strain is completed.
No matter hand technology or auto-manual system technology, bottom of device and filter core can all precipitate miscellaneous after long-time oil strain
Matter.It needs to carry out clean and maintenance by provision for disengagement, this will affect device performance.
No matter hand technology or auto-manual system technology, no device fault warning prompt, security reliability is low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of online full-automatic oil filtering machines, are changed by pressure inside the tank
Judge whether oil strain is completed, without human intervention, oil sample filtering degree of purity it is higher.The filter method contains automatic cleaning function, exempts from
Maintenance.Each operational process of the filter method sets Rule of judgment, if the conditions are not met, prompts corresponding abnormal letter
Breath improves equipment safety reliability and stability.
A kind of online full-automatic oil filtering machine is passed by control module, oil storage tank, vacuum pump, mixing pump, oil drain pump, liquid level
The part such as sensor, pressure sensor, heating system, strainer, accurate filter, shell, temperature sensor and temperature switch forms,
There is shell in the outside of the oil storage tank, and oil storage pot bottom has discharge outlet to stretch out shell, and the heating system is mounted on oil storage
On the outside of tank, oil storage tank wall sets temperature sensor, connects pressure sensor at the top of oil storage tank, there is high and low level sensing in oil storage tank
Device, oil inlet nozzle are located at liquid level sensor high liquid level sensor between roof, oil inlet pipe end has filter in oil storage tank
Net, fuel-displaced nozzle are located between the low liquid level sensor and oil storage tank lower curtate of liquid level sensor, and flowline concatenates oil drain pump and essence
Close filter, mixing pump are connected to two root canal roads, and one is lower than low liquid level sensor, and one is higher than high liquid level sensor, described
Control module and vacuum pump, mixing pump, oil drain pump, liquid level sensor, pressure sensor, heating system, temperature sensor and temperature
The device signals such as degree switch are connected, and control its switch.
There are also solenoid is gone out between flowline and oil drain pump, there is oil inlet solenoid valve between oil inlet pipe and oil storage tank, discharges
Mouth is circumscribed with oil drain solenoid valve.And aforementioned three kinds of solenoid valves are connected to control module.Oil inlet pipe rear end strainer, the filtering essence of strainer
Degree is 100um.The filtering accuracy of accurate filter is 50um.
Outer casing inner wall installs oil leakage detector.There is oil leak alarm for detection device, and will test device and be connected to control
Molding block.
The present invention also provides a kind of control methods, use online full-automatic oil filtering machine above-mentioned, wherein oil strain controlled
Oil storage tank internal pressure is evacuated to lower than 1000Pa by vacuum pump, closes vacuum pump, open the oil inlet of oil inlet solenoid valve by journey, when
Liquid level sensor high liquid level sensor-triggered closes oil inlet solenoid valve；During oil inlet, oil storage pressure tank is greater than 3000Pa
When, it opens vacuum pump and is closed to degassing drum pressure lower than 1000Pa, automatic reciprocating operation；
In continuous 10 minutes, oil storage pressure tank is stablized within 3000Pa for control process design, opens mixing pump；Stirred
Cheng Zhong opens vacuum pump and closes to degassing drum pressure lower than 1000Pa if oil storage pressure tank is greater than 3000Pa, automatic reciprocating behaviour
Make.
In continuous 10 minutes, degassing drum pressure is stablized within 3000Pa for control process design, opens heater；Oil storage
Tank is begun to warm up.Degassing tank heating temperature is set in control module sets 60 DEG C, when temperature is raised to 85 DEG C, heater stops working,
It plays a protective role, wherein in continuous 10 minutes, oil storage pressure tank is stablized within 3000Pa for control process design, closes
Heater closes mixing pump, closes vacuum pump, opens out solenoid and oil drain pump, oil is drained into special container.
Control method further includes automatic cleaning process, is that oil storage tank is first packed into clean oil sample, then opens oil extraction electricity
Magnet valve excludes oil and impurity together.
The utility model has the advantages that
1, judge whether oil strain is completed by pressure inside the tank variation, without human intervention；
2, the degree of purity of oil strain is high, the H2 of 15.7ppm in oil can be down to 0.1ppm hereinafter, the C2H2 of 6.3ppm is down in oil
0ppm, the total hydrocarbon of 33.4ppm is down to 0.1ppm or less in oil；
3, automatic cleaning process is set, it can be achieved that device is non-maintaining in control process.
4, each process settings Rule of judgment controlled prompts corresponding exception information if the conditions are not met, improves device
Safe and reliable stability.
Detailed description of the invention
Fig. 1, equipment schematic diagram of the invention
Fig. 2, control method flow chart of the invention
Fig. 3, the control method of cleaning step of the invention
Wherein, 1 is oil storage tank, and 2 be vacuum pump, and 3 be oil drain pump, and 4 be mixing pump, and 5 be control module, and 6 be oil inlet solenoid valve, 7
It is solenoid out, 8 be pressure sensor, and 9 be temperature sensor, and 10 be heating system, and 11 be oil leakage detector, and 12 be oil extraction
Solenoid valve, 13 be strainer, and 14 be liquid level sensor, and 15 be temperature switch, and 16 be accurate filter, and 17 be shell.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of online full-automatic oil filtering machine, by control module 5, oil storage tank 1, vacuum pump 2, mixing pump 4, oil extraction
Pump 3, liquid level sensor 14, pressure sensor 8, heating system 10, strainer 13, accurate filter 16, shell 17, temperature sensor
The part such as 9 and temperature switch 15 forms, and there is shell 17 in the outside of the oil storage tank 1, and it is outer that 1 bottom of oil storage tank has discharge outlet to stretch out
Shell 17, the heating system 10 are mounted on 1 outside of oil storage tank, and 1 outer wall of oil storage tank sets temperature sensor 9 and temperature switch 15,
Pressure sensor 8 is connect at the top of oil storage tank 1, there is high and low liquid level sensor in oil storage tank 1, and oil inlet nozzle is located at liquid level sensor 14
For high liquid level sensor between roof, oil inlet pipe end has strainer 13 in oil storage tank 1, fuel-displaced nozzle is located at level sensing
Between the low liquid level sensor and oil storage tank lower curtate of device 14, flowline concatenation oil drain pump 3 and accurate filter 16, mixing pump 4 are connect
There are two root canal roads, one is lower than low liquid level sensor, and one is higher than high liquid level sensor, the control module 5 and vacuum pump
2, mixing pump 4, oil drain pump 3, liquid level sensor 14, pressure sensor 8, heating system 10, temperature sensor 9 and temperature switch 15
Etc. device signals be connected, control its switch.
There are also solenoid 7 is gone out between flowline and oil drain pump 3, there is oil inlet solenoid valve 6 between oil inlet pipe and oil storage tank 1,
Discharge outlet is circumscribed with oil drain solenoid valve 12.And aforementioned three kinds of solenoid valves are connected to control module 5.Oil inlet pipe rear end strainer 13, filter
The filtering accuracy of net 13 is 100um.The filtering accuracy of accurate filter 16 is 50um.
17 inner wall of shell installs oil leakage detector 11.There is oil leak alarm for detection device, and will test the company of device 11
It is connected to control module 5.
Embodiment 2
As shown in Fig. 2, a kind of control method, uses online full-automatic oil filtering machine above-mentioned, wherein oil strain control process is led to
It crosses vacuum pump oil storage tank internal pressure is evacuated to lower than 1000Pa, closes vacuum pump, open the oil inlet of oil inlet solenoid valve, when liquid level passes
Sensor high liquid level sensor-triggered closes oil inlet solenoid valve；During oil inlet, when oil storage pressure tank is greater than 3000Pa, open
Vacuum pump is closed to degassing drum pressure lower than 1000Pa, automatic reciprocating operation；
In continuous 10 minutes, oil storage pressure tank is stablized within 3000Pa for control process design, opens mixing pump；Stirred
Cheng Zhong opens vacuum pump and closes to degassing drum pressure lower than 1000Pa if oil storage pressure tank is greater than 3000Pa, automatic reciprocating behaviour
Make.
In continuous 10 minutes, degassing drum pressure is stablized within 3000Pa for control process design, opens heater；Oil storage
Tank is begun to warm up.Degassing tank heating temperature is set in control module sets 60 DEG C, when temperature is raised to 85 DEG C, heater stops working,
It plays a protective role, wherein in continuous 10 minutes, oil storage pressure tank is stablized within 3000Pa for control process design, closes
Heater closes mixing pump, closes vacuum pump, opens out solenoid and oil drain pump, oil is drained into special container.
Control method further includes automatic cleaning process, is that oil storage tank is first packed into clean oil sample, then opens oil extraction electricity
Magnet valve excludes oil and impurity together.Specifically as shown in Figure 3.
Claims (10)
1. a kind of online full-automatic oil filtering machine, by control module, oil storage tank, vacuum pump, mixing pump, oil drain pump, level sensing
The part such as device, pressure sensor, heating system, strainer, accurate filter, shell, temperature sensor and temperature switch forms, institute
There is shell in the outside for the oil storage tank stated, and oil storage pot bottom has discharge outlet to stretch out shell, and the heating system is mounted on oil storage tank
Outside, oil storage tank wall set temperature sensor and temperature switch, connect pressure sensor at the top of oil storage tank, have in oil storage tank high and low
Liquid level sensor, oil inlet nozzle are located at liquid level sensor high liquid level sensor between roof, oil inlet pipe end is in oil storage
There is strainer in tank, fuel-displaced nozzle is located between the low liquid level sensor and oil storage tank lower curtate of liquid level sensor, flowline concatenation row
Oil pump and accurate filter, mixing pump are connected to two root canal roads, and one is lower than low liquid level sensor, and one is higher than high liquid level and senses
Device, the control module and vacuum pump, mixing pump, oil drain pump, liquid level sensor, pressure sensor, heating system, temperature pass
Sensor is connected with device signals such as temperature switches, the switch of acquisition data and control connector part.
2. online full-automatic oil filtering machine according to claim 1, which is characterized in that between flowline and oil drain pump also
Solenoid out, there is oil inlet solenoid valve between oil inlet pipe and oil storage tank, fuel-displaced, the oil inlet solenoid valve are connected to control mould
Block.
3. online full-automatic oil filtering machine according to claim 2, which is characterized in that the filtering essence of oil inlet pipe rear end strainer
Degree is 100um.
4. online full-automatic oil filtering machine according to claim 3, which is characterized in that the filtering accuracy of accurate filter is
50um。
5. online full-automatic oil filtering machine according to claim 4, which is characterized in that outer casing inner wall installs Oil Leakage Detecting
Device, the oil leakage detector are connected to control module.
6. online full-automatic oil filtering machine according to claim 5, which is characterized in that the discharge outlet is circumscribed with oil extraction
Solenoid valve, the oil drain solenoid valve are connected to control module.
7. a kind of control method uses online full-automatic oil filtering machine as claimed in claim 6, which is characterized in that oil strain control
Oil storage tank internal pressure is evacuated to lower than 1000Pa by vacuum pump, closes vacuum pump, open the oil inlet of oil inlet solenoid valve by process,
When liquid level sensor high liquid level sensor-triggered, oil inlet solenoid valve is closed；During oil inlet, oil storage pressure tank is greater than 3000Pa
When, it opens vacuum pump and is closed to degassing drum pressure lower than 1000Pa, automatic reciprocating operation.
8. control method according to claim 7, which is characterized in that control process design is in continuous 10 minutes, oil storage
Pressure tank is stablized within 3000Pa, and mixing pump is opened；In whipping process, if oil storage pressure tank is greater than 3000Pa, open true
Sky pump is closed to degassing drum pressure lower than 1000Pa, automatic reciprocating operation.
9. control method according to claim 8, which is characterized in that control process design is in continuous 10 minutes, degassing
Pressure tank is stablized within 3000Pa, and heater is opened；Oil storage tank is begun to warm up；Degassing tank heating temperature is set in control module
60 DEG C are set, when temperature is raised to 85 DEG C, heater stops working, and plays a protective role, wherein control process design works as continuous 10 points
In clock, oil storage pressure tank is stablized within 3000Pa, closes heater, closes mixing pump, closes vacuum pump, opens out electromagnetic oil
Valve and oil drain pump, oil is drained into special container.
10. control method according to claim 8, which is characterized in that the control method further includes cleaning automatically
Journey is that oil storage tank is first packed into clean oil sample, then opens oil drain solenoid valve, and oil and impurity are excluded together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910608153.7A CN110335746A (en) | 2019-07-08 | 2019-07-08 | A kind of online full-automatic oil filtering machine and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910608153.7A CN110335746A (en) | 2019-07-08 | 2019-07-08 | A kind of online full-automatic oil filtering machine and its control method |
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| CN110335746A true CN110335746A (en) | 2019-10-15 |
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| CN201910608153.7A Pending CN110335746A (en) | 2019-07-08 | 2019-07-08 | A kind of online full-automatic oil filtering machine and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650932A (en) * | 2021-08-19 | 2021-11-16 | 国网江西省电力有限公司电力科学研究院 | Pump suction type standard oil sample intelligent oil storage tank |
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| CN106024310A (en) * | 2016-07-18 | 2016-10-12 | 徐州工程学院 | Transformer oil filter electrical control system in wide-input gird-connected inverter and working method thereof |
| CN108987059A (en) * | 2018-08-01 | 2018-12-11 | 罗固事 | A kind of processing method of de- electrostatic oil filter and transformer DC magnetic bias |
| CN210182198U (en) * | 2019-07-08 | 2020-03-24 | 长园深瑞监测技术有限公司 | Online full-automatic oil filter |
-
2019
- 2019-07-08 CN CN201910608153.7A patent/CN110335746A/en active Pending
Patent Citations (7)
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|---|---|---|---|---|
| CN201298426Y (en) * | 2008-11-13 | 2009-08-26 | 济南安塞自动化技术有限公司 | On-line vacuum heating oil filter |
| CN102368416A (en) * | 2011-10-25 | 2012-03-07 | 江苏省电力公司南通供电公司 | Novel online oil filtering and monitoring device for on-load tap changer |
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| CN106024310A (en) * | 2016-07-18 | 2016-10-12 | 徐州工程学院 | Transformer oil filter electrical control system in wide-input gird-connected inverter and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650932A (en) * | 2021-08-19 | 2021-11-16 | 国网江西省电力有限公司电力科学研究院 | Pump suction type standard oil sample intelligent oil storage tank |
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