CN109058769A - A kind of transformer oil leakage on-line monitoring, emergent treatment system and method - Google Patents
A kind of transformer oil leakage on-line monitoring, emergent treatment system and method Download PDFInfo
- Publication number
- CN109058769A CN109058769A CN201810649908.3A CN201810649908A CN109058769A CN 109058769 A CN109058769 A CN 109058769A CN 201810649908 A CN201810649908 A CN 201810649908A CN 109058769 A CN109058769 A CN 109058769A
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- oil
- transformer
- emergency
- pond
- leakage
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title abstract description 5
- 238000004891 communication Methods 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 230000002262 irrigation Effects 0.000 claims description 6
- 238000003973 irrigation Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 96
- 238000005457 optimization Methods 0.000 description 7
- 238000004880 explosion Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of transformer oil leakage on-line monitoring, emergent treatment system and methods, are related to a kind of transformer monitoring field.There has been no the on-line monitoring of a oil leakage, emergent treatment systems at present to monitor whether transformer oil leaks constantly.The present invention includes transformer draining pond, oil-drain pipe, emergency oil pond, oily leak sensor, rain rill, cable duct, communication module, monitoring system, control unit, emergency treatment device and rain rill valve, transformer draining pond is connected with emergency oil pond by oil-drain pipe, oily leak sensor is multiple, it is respectively arranged on transformer draining pond, emergency oil pond, in rain rill and cable duct, communication module and oily leak sensor, monitoring system is connected, control unit is connected with monitoring system and emergency treatment device respectively, rain rill valve is set in rain rill to prevent the transformer oil flow direction station of leakage outer.The technical program structure is simple, reliable operation, can accurately obtain the leak degree and speed of transformer oil.
Description
Technical field
The present invention relates at a kind of transformer monitoring field more particularly to a kind of transformer oil leakage on-line monitoring, emergency
Reason system.
Background technique
Substation is the important component of power grid, and main transformer volume is larger in voltage levels substation, and is mostly
Oil-filled equipment, especially super-pressure, extra-high-voltage alternating current substation, for the weight of main transformer up to several hundred tons, transformer oil is also more
It is tens tons or more.
For transformer due to factors such as short circuit, overloads, it is excessively high to will cause operating temperature, and oil temperature increases, and is easy to appear oil leak
Phenomenon.The reason of oil leak includes that fuel outlet valve is not closed completely, and casing is not matched with conducting rod or washer sealing is not tight, a variety of materials
The reasons such as connecting portion is not firm.Permeability usually occurs in each junction of transformer, since volume of transformer is larger, slight leakage
Oily phenomenon is difficult to find in time sometimes, and to a certain extent, when product full dust can just be found by tour personnel for usually equal oil leaks.Due to
It was found that oil leak is not in time, cannot discovering device defect in time, be easy to cause hidden danger.
Oil sump is unloaded in general, being connected with below transformer, is connected by dedicated oil-drain pipe with emergency oil pond, accident occurs
When, if the oil of oil spout or explosion, transformer can be discharged in oil sump, emergency oil pond is then flowed to, the effect of emergency oil pond is anti-
Only oil, which leaks, causes fire etc. to make fault spread.If transformer occur explosion etc. catastrophe failures cause oil leak into unload oil sump with
Outside, for example cable duct, rain rill, oil can flow out substation with rainwater pipeline, are flowed into rivers by irrigation canals and ditches, be caused serious
Water pollution, generate serious environmental problem.
There has been no on-line monitoring, the emergent treatment systems of a oil leakage to monitor whether transformer oil is let out constantly at present
Leakage, and prevent transformer oil from leaking into irrigation canals and ditches outside substation, guarantee oily leakage pollution is near minimum.
Summary of the invention
The technical problem to be solved in the present invention and the technical assignment of proposition are to be improved and improved to prior art,
A kind of transformer oil leakage on-line monitoring, emergent treatment system are provided, to achieve the purpose that reduce oil contamination.For this purpose, this hair
It is bright to take following technical scheme.
A kind of transformer oil leakage on-line monitoring, emergent treatment system, including transformer draining pond, oil-drain pipe, accident
Oil sump, oily leak sensor, rain rill, cable duct, communication module, monitoring system, control unit, emergency treatment device and rainwater
Ditch valve, transformer draining pond and the emergency oil pond are connected by oil-drain pipe, it is described oil leak sensor be it is multiple,
It is respectively arranged in transformer draining pond, emergency oil pond, rain rill and cable duct, the communication module and the oil leakage pass
Sensor, monitoring system are connected, and described control unit is connected with the monitoring system and emergency treatment device respectively, the rain rill
Valve is set in the rain rill to prevent the transformer oil flow direction station of leakage outer.
As optimization technique means: the monitoring system is equipped with warning device, and the warning device is ring sound loudspeaker.
As optimization technique means: the oily leak sensor being equipped in the rain rill and cable duct is at least 2.To mention
The accuracy of high detection.
As optimization technique means: the oily leak sensor equidistantly distributed being equipped in the rain rill and cable duct.With
Just the case where obtaining oil leakage, obtains the rate of oil leakage, available accurate information.
As optimization technique means: being equipped with oil suction rug in the emergency treatment device.
As optimization technique means: being equipped with active carbon in the emergency treatment device.
The communication module is wireless communication module.Facilitate the transmission of data.
It is a further object of the invention to provide a kind of transformer oil leakage on-line monitorings, emergency processing method comprising
Following steps:
1) the case where oily leak sensor detection transformer draining pond, emergency oil pond, rain rill and cable duct oil liquid；
2) monitoring system monitors the transmission information of oily leak sensor；
If 201) only oil leak signal is transferred to monitoring system by communication module by the oily leak sensor in transformer draining pond,
Then it is considered slight oil leak；Monitoring system alert informs that transformer oil leaks, it is ensured that staff can be
Fuel tank is overhauled at the first time；
202) if positioned at unloading, the oily leak sensor of oil sump, positioned at unloading between oil sump and emergency oil pond, oil leakage is passed in oil line pipe
When oil leak signal is transferred to monitoring system by communication module successively by the oily leak sensor in sensor, emergency oil pond, then recognize
Accident occurs for transformer, monitoring system alert informs that the oil of leakage has flowed into emergency oil pond；
203) if oil leak signal is transferred to monitoring by communication module by the oily leak sensor being located in cable duct and rain rill
System, then it is assumed that transformer oil leakage is serious, and monitoring system sounds an alarm, and transmits information to control unit；
3) after control unit obtains monitoring system information, control unit starts emergency treatment device, and emergency treatment device is closed
Rain rill valve prevents transformer oil from leaking into irrigation canals and ditches outside substation, guarantees oily leakage pollution is near minimum.
As optimization technique means: control unit starts emergency treatment device, and emergency treatment device discharges oil suction rug, and closes
Close rain rill valve.
As optimization technique means: control unit starts emergency treatment device and releases after emergency treatment device discharges oil suction rug
Active carbon is put, and closes rain rill valve.Hydraulic oil leakage can be effectively prevented to reveal to outside station.
The utility model has the advantages that
1, the technical program structure is simple, reliable operation, can accurately obtain the leak degree and speed of transformer oil.
2, not needing manual patrol can find that transformer oil is revealed, and sound an alarm notify staff takes to arrange in time
It applies.
3, it prevents transformer oil from leaking into irrigation canals and ditches outside substation, guarantees oily leakage pollution is near minimum.
4, coherent signal is by wireless transmission, and simple and convenient, without arrangement route, more flexibly, and capital investment is less.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
In figure: 1- transformer draining pond；2- emergency oil pond；3- oil leak sensor；The rain rill 4-；5- monitoring system；6-
Wireless communication module；7- control unit；8- emergency processing module；The rain rill 9- valve；10- cable duct；11- oil-drain pipe；12-
Substation.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with Figure of description.
As shown in Figure 1, a kind of transformer oil leakage on-line monitoring, emergent treatment system, including transformer draining pond 1, row
Oil-piping 11, emergency oil pond 2, oily leak sensor 3, rain rill 4, cable duct 10, wireless communication module 6, monitoring system 5, control
Unit 7, emergency treatment device 8 and rain rill valve 9 processed, transformer draining pond 1 and emergency oil pond 2 are connected by oil-drain pipe 11
It connects, oily leak sensor 3 is set in transformer draining pond 1, emergency oil pond 2, rain rill 4 and cable duct 10, wireless communication module 6
It is connected by signal wire with oily leak sensor 4, monitoring system 5, control unit 7 is filled with monitoring system 5 and emergency processing respectively
It sets 8 to be connected, rain rill valve 9 is set in rain rill 4.Warning device is equipped in monitoring system.It is equipped with and inhales in emergency treatment device 8
Linoleum or active carbon.
When transformer oil leakage on-line monitoring, emergent treatment system through the above arrangement works, if slight oil leak feelings
Condition, when oil, which occurs, for transformer leaks and be discharged into emptying pond 1, the oily leak sensor 4 in transformer draining pond 1 believes oil leak
It number is transferred to wireless communication module 6, wireless communication module 6 transmits information to monitoring system 5, and monitoring system 5 issues alarm signal
Breath informs that transformer oil leaks, it is ensured that staff can overhaul fuel tank in first time.
If accident occurs, the transformer oil such as oil spout or explosion, leakage is relatively more, and the oil of transformer can be discharged to emptying
In pond 1, emergency oil pond 2 is then flowed to, letter will be received successively by unloading the oily leak sensor 3 in oil sump 1 and in emergency oil pond 2 on the way
Number, oil leak signal is transferred to wireless communication module 6, wireless communication module 6 transmits information to monitoring system 5, monitoring system 5
Alert informs that the oil of leakage has flowed into emergency oil pond.
If transformer oil leakage is more serious, unloading oil sump blocking, perhaps oil is ejected to ground nearby or transformer occurs
The catastrophe failures such as explosion, cause oil to leak into and unload other than oil sump 1, such as in cable duct 10, rain rill 4, cable duct 10 and rainwater
Oil leak signal is transferred to wireless communication module 6 by the oily leak sensor 4 in ditch 4, and wireless communication module 6 transmits information to prison
Control system 5, monitoring system 5 sound an alarm, and transmit information to control unit 7, and control unit 7 starts emergency treatment device 8,
Emergency treatment device 8 closes rain rill valve 9, prevents transformer oil from leaking into the outer irrigation canals and ditches of substation 12, guarantees oil leakage is dirty
It contaminates near minimum.It not only ensure that the safety of transformer, stable operation, and saved cost, can remotely monitor.
To cause worker's note that being equipped with warning device in monitoring system, warning device is ring sound loudspeaker.
To improve the accuracy detected, the oily leak sensor being equipped in rain rill and cable duct is at least 2.Rain rill
It is equidistantly distributed with the oily leak sensor being equipped in cable duct.
Effectively to avoid transformer oil from flowing to outside substation 12, environment is polluted, emergency treatment device includes oil suction rug release
Mechanism and/or active carbon relieving mechanism, the oil suction rug relieving mechanism include oil suction rug, traction electric machine, with traction electric machine phase
The shaft for being used to pull oil suction rug even, the active carbon relieving mechanism include active carbon, the cabinet for accommodating active carbon, are set to
The electric controlled door of lower box, the electric controlled door are opposite with rain rill.Oil suction rug is connected by traction rope with shaft.Using traction rope
It can avoid stopping rainwater to flow out substation 12 under normal circumstances.When there is greasy dirt, shaft rotation pulls traction rope, until oil suction
Blanket pulls in rain rill.
The electric controlled door is equipped with electromagnet, to control the unlatching of electric controlled door.When there are greasy dirt, control unit can pass through
Relay control electromagnet obtains power loss, to control the unlatching of electric controlled door.
It can be with when emergency processing:
A control unit 7 starts emergency treatment device 8, and emergency treatment device 8 discharges oil suction rug, and closes rain rill valve 9.
Active carbon can certainly be used, active carbon is equipped in emergency treatment device, control unit 7 starts emergency processing dress
8 are set, emergency treatment device 8 discharges active carbon, and closes rain rill valve 9.
Or set outside oil suction rug in emergency treatment device, it can also set active carbon.
A kind of leakage of transformer oil shown in figure 1 above on-line monitoring, emergent treatment system and method are tools of the invention
Body embodiment has embodied substantive distinguishing features of the present invention and progress, needs can be used according to actual, in enlightenment of the invention
Under, the equivalent modifications of shape, structure etc., the column in the protection scope of this programme are carried out to it.
Claims (10)
1. a kind of transformer oil leakage on-line monitoring, emergent treatment system, it is characterised in that: including transformer draining pond, oil extraction
Pipeline, emergency oil pond, oily leak sensor, rain rill, cable duct, communication module, monitoring system, control unit, emergency processing
Device and rain rill valve, transformer draining pond and the emergency oil pond are connected by oil-drain pipe, and the oil leakage passes
Sensor be it is multiple, be respectively arranged in transformer draining pond, emergency oil pond, rain rill and cable duct, the communication module with
It is described oil leak sensor, monitoring system be connected, described control unit respectively with the monitoring system and emergency treatment device phase
Even, the rain rill valve is set in the rain rill to prevent the transformer oil flow direction station of leakage outer.
2. a kind of transformer oil leakage on-line monitoring according to claim 1, emergent treatment system, it is characterised in that: institute
Monitoring system is stated equipped with warning device, the warning device is ring sound loudspeaker.
3. a kind of transformer oil leakage on-line monitoring according to claim 1, emergent treatment system, it is characterised in that: institute
It states the oily leak sensor being equipped in rain rill and cable duct and is at least 2.
4. a kind of transformer oil leakage on-line monitoring according to claim 1, emergent treatment system, it is characterised in that: institute
State the oily leak sensor equidistantly distributed being equipped in rain rill and cable duct.
5. a kind of transformer oil leakage on-line monitoring according to claim 1, emergent treatment system, it is characterised in that: institute
It states and is equipped with oil suction rug in emergency treatment device.
6. a kind of transformer oil leakage on-line monitoring according to claim 1, emergent treatment system, it is characterised in that: institute
It states and is equipped with active carbon in emergency treatment device.
7. a kind of transformer oil leakage on-line monitoring according to claim 6, emergent treatment system, it is characterised in that: institute
The communication module stated is wireless communication module.
8. a kind of transformer oil leakage on-line monitoring, emergency processing method, it is characterised in that:
1) the case where oily leak sensor detection transformer draining pond, emergency oil pond, rain rill and cable duct oil liquid；
2) monitoring system monitors the transmission information of oily leak sensor；
If 201) only oil leak signal is transferred to monitoring system by communication module by the oily leak sensor in transformer draining pond,
Then it is considered slight oil leak；Monitoring system alert informs that transformer oil leaks, it is ensured that staff can be
Fuel tank is overhauled at the first time；
202) if positioned at unloading, the oily leak sensor of oil sump, positioned at unloading between oil sump and emergency oil pond, oil leakage is passed in oil line pipe
When oil leak signal is transferred to monitoring system by communication module successively by the oily leak sensor in sensor, emergency oil pond, then recognize
Accident occurs for transformer, monitoring system alert informs that the oil of leakage has flowed into emergency oil pond；
203) if oil leak signal is transferred to monitoring by communication module by the oily leak sensor being located in cable duct and rain rill
System, then it is assumed that transformer oil leakage is serious, and monitoring system sounds an alarm, and transmits information to control unit；
3) after control unit obtains monitoring system information, control unit starts emergency treatment device, and emergency treatment device is closed
Rain rill valve prevents transformer oil from leaking into irrigation canals and ditches outside substation, guarantees oily leakage pollution is near minimum.
9. a kind of transformer oil leakage on-line monitoring according to claim 8, emergency processing method, it is characterised in that: control
Unit starting emergency treatment device processed, emergency treatment device discharges oil suction rug, and closes rain rill valve.
10. a kind of transformer oil leakage on-line monitoring according to claim 9, emergency processing method, it is characterised in that: control
Unit starting emergency treatment device processed after emergency treatment device discharges oil suction rug, discharges active carbon, and close rain rill valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649908.3A CN109058769B (en) | 2018-06-22 | 2018-06-22 | Transformer oil leakage online monitoring and emergency treatment system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649908.3A CN109058769B (en) | 2018-06-22 | 2018-06-22 | Transformer oil leakage online monitoring and emergency treatment system and method |
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| Publication Number | Publication Date |
|---|---|
| CN109058769A true CN109058769A (en) | 2018-12-21 |
| CN109058769B CN109058769B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810649908.3A Active CN109058769B (en) | 2018-06-22 | 2018-06-22 | Transformer oil leakage online monitoring and emergency treatment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403154A (en) * | 2020-03-17 | 2020-07-10 | 山东电力设备有限公司 | Quick oil discharge device, control system and control method for transformer body |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202817913U (en) * | 2012-10-19 | 2013-03-20 | 天津市电力公司 | Intelligent component based on traditional substation main transformer |
| US20140233605A1 (en) * | 2013-02-15 | 2014-08-21 | S.D. Myers, Inc. | System for monitoring and treating transformer oil |
| JP2015046458A (en) * | 2013-08-28 | 2015-03-12 | 中国電力株式会社 | Minor oil leakage detection device of transformer |
| US20160047765A1 (en) * | 2014-08-12 | 2016-02-18 | Abb Inc. | Method and Apparatus for Leakage Monitoring for Oil-Immersed Electrical Transformers |
| CN106404318A (en) * | 2016-08-31 | 2017-02-15 | 南京理工大学 | Indoor distribution transformer oil leakage supervision system |
| CN106525123A (en) * | 2016-11-02 | 2017-03-22 | 天津市鸿远电气股份有限公司 | Electrical fire-fighting safety detection method |
| CN106595977A (en) * | 2016-12-16 | 2017-04-26 | 国家电网公司 | Equipment insulation oil leakage monitoring alarm apparatus |
| CN206880975U (en) * | 2017-07-06 | 2018-01-16 | 刘俐红 | A kind of high-power transformer fire control enlarging device |
| CN207248448U (en) * | 2017-07-05 | 2018-04-17 | 辽宁中旭石化科技股份有限公司 | A kind of transformer oil oil leakage monitoring device |
| CN208397711U (en) * | 2018-06-22 | 2019-01-18 | 国网浙江省电力有限公司检修分公司 | A kind of transformer oil leakage on-line monitoring, emergent treatment system |
-
2018
- 2018-06-22 CN CN201810649908.3A patent/CN109058769B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202817913U (en) * | 2012-10-19 | 2013-03-20 | 天津市电力公司 | Intelligent component based on traditional substation main transformer |
| US20140233605A1 (en) * | 2013-02-15 | 2014-08-21 | S.D. Myers, Inc. | System for monitoring and treating transformer oil |
| JP2015046458A (en) * | 2013-08-28 | 2015-03-12 | 中国電力株式会社 | Minor oil leakage detection device of transformer |
| US20160047765A1 (en) * | 2014-08-12 | 2016-02-18 | Abb Inc. | Method and Apparatus for Leakage Monitoring for Oil-Immersed Electrical Transformers |
| CN106404318A (en) * | 2016-08-31 | 2017-02-15 | 南京理工大学 | Indoor distribution transformer oil leakage supervision system |
| CN106525123A (en) * | 2016-11-02 | 2017-03-22 | 天津市鸿远电气股份有限公司 | Electrical fire-fighting safety detection method |
| CN106595977A (en) * | 2016-12-16 | 2017-04-26 | 国家电网公司 | Equipment insulation oil leakage monitoring alarm apparatus |
| CN207248448U (en) * | 2017-07-05 | 2018-04-17 | 辽宁中旭石化科技股份有限公司 | A kind of transformer oil oil leakage monitoring device |
| CN206880975U (en) * | 2017-07-06 | 2018-01-16 | 刘俐红 | A kind of high-power transformer fire control enlarging device |
| CN208397711U (en) * | 2018-06-22 | 2019-01-18 | 国网浙江省电力有限公司检修分公司 | A kind of transformer oil leakage on-line monitoring, emergent treatment system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403154A (en) * | 2020-03-17 | 2020-07-10 | 山东电力设备有限公司 | Quick oil discharge device, control system and control method for transformer body |
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|---|---|
| CN109058769B (en) | 2023-12-12 |
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