CN105552755B - Transformer radiator tube butterfly valve maintenance unit - Google Patents
Transformer radiator tube butterfly valve maintenance unit Download PDFInfo
- Publication number
- CN105552755B CN105552755B CN201510952383.7A CN201510952383A CN105552755B CN 105552755 B CN105552755 B CN 105552755B CN 201510952383 A CN201510952383 A CN 201510952383A CN 105552755 B CN105552755 B CN 105552755B
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- CN
- China
- Prior art keywords
- maintenance
- operation cabin
- transformer
- butterfly valve
- cabin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 163
- 238000000034 method Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000001727 in vivo Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000321885 Lampides boeticus Species 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 241000143987 Parnassiinae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 108010066278 cabin-4 Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention discloses a kind of transformer radiator tube butterfly valve maintenance unit, has a maintenance operation cabin, and maintenance operation cabin sets the flexible operation set being connected with handle hole；Set on maintenance operation cabin and auxiliary operation cabin is connected with maintenance operation cabin, maintenance operation cabin connects position with auxiliary operation cabin and sets closure door, and object access way mouth is set at the top of auxiliary operation cabin；The free end of flexible operation set is connected with gloves, and maintenance operation bilge portion sets telescopic outrigger, and maintenance operation bilge portion sets plug of draining the oil by drain oil, and the top in auxiliary operation cabin sets exhaust plug by steam vent.The method for maintaining of the present invention is without the transformer oil releasing in transformer shell and large scale equipment are coordinated, and whole maintenance activity only needs 2~3 people to coordinate, the maintenance of failure and the replacing of damaged part can be carried out, thus substantial amounts of human and material resources and maintenance cost are saved, the apparatus structure is simple, it is easy to use, it is securely and reliably, simple and practical.
Description
Technical field
The present invention relates to electric equipment maintenance technical field, more particularly to a kind of transformer radiator tube butterfly valve maintenance dress
Put.
Background technology
In technology known to structure, transformer generally comprises transformer shell and is laid in its week side of boss and in communication more
Individual radiating tube, transformer oil is filled with transformer shell and radiating tube, radiating and insulation for Transformer.
The connecting portion of each radiating tube and transformer shell is provided with butterfly valve by adpting flange, the dimension for cooling system
Repair.And in the actual moving process of transformer, generation is the most frequently the seal of the butterfly valve and its connecting portion
It is easily damaged, and causes the failure of leakage or the transformer oil loop control of transformer oil, in addition the number of radiating tube and butterfly valve
Measure it is more, so maintenance the frequency it is a lot.At present to the maintenance of such failure, oil truck, the oil for being typically first equipped with needs
The large scale equipment such as pump, vavuum pump tissue is to scene, and then disconnecting transformer is connected with powered-down road, and the radiating tube that will appear from failure is torn open
Get off, then all evacuated the transformer oil in transformer shell by oil pump, and be put into oil truck, then could be to butterfly
Valve and sealing ring are removed for repair or replacement.Meanwhile after the completion of maintenance work, it is also necessary under the cooperation of vavuum pump, by transformation
Device housing and all radiating tubes are completely filled with transformer oil, can enter the debugging, energization, operation of line transformer.This maintenance side
The major defect of method is：1) need to coordinate the large scale equipments such as oil truck, oil pump, vavuum pump, and need more people to coordinate, workload
Greatly, labor intensity is high；2) several tons at least of the transformer oil in transformer, at most more than ten tons, or even tens of tons, all be vented,
It is completely filled with again, workload is very big, it is necessary to which time length, has a strong impact on maintenance efficiency, and transformer oil easily pollutes；2) due to
Maintenance overall process must be carried out under power down mode, and maintenance time is long, the operation of whole power transmission and transformation system certainly will be influenceed, to confession
Electric enterprise and user bring more serious influence and economic loss.
The content of the invention
The purpose of the present invention is the defects of overcoming prior art, there is provided a kind of without the cooling oil in transformer shell is put
Go out and large scale equipment coordinates, you can carry out the maintenance of failure and the replacing of damaged part, simple in construction, easy to operate, maintenance effect
Rate is high, the low transformer radiator tube butterfly valve maintenance unit of cost.
Technical scheme is used by realizing the purpose of the present invention：A kind of transformer radiator tube butterfly valve maintenance unit, tool
There is a maintenance operation cabin, the side in the maintenance operation cabin sets handle hole, it is characterised in that：The maintenance operation cabin set with
The flexible operation set of handle hole connection, the opposite side in maintenance operation cabin set the flexible sealing for being connected and connecting with maintenance operation cabin
Set；Set on the maintenance operation cabin and auxiliary operation cabin is connected with maintenance operation cabin, maintenance operation cabin connects with auxiliary operation cabin
Position sets closure door, sets object access way mouth at the top of auxiliary operation cabin, and set movable sealing cover plate；Flexible operation set
Free end is connected with gloves, and the maintenance operation bilge portion sets telescopic outrigger, and the maintenance operation bilge portion is by putting
Oilhole sets plug of draining the oil, and the top in the auxiliary operation cabin sets exhaust plug by steam vent.
As further preferred scheme, observation window is set on the maintenance operation cabin.
As further another preferred scheme, the opening of the flexible gland sets clip.
As further another preferred scheme, the maintenance operation cabin is transparent material product.
A kind of method for maintaining using the transformer radiator tube butterfly valve maintenance unit, it is to carry out according to the following steps：
1) maintenance prepares：
A. the outer connecting lines of disconnecting transformer, maintenance tool and new accessory to be replaced are put into the maintenance operation cabin,
The radiating tube of trouble location is pulled down, maintenance operation cabin is sleeved on to the connection of transformer shell together with the flexible gland
On flange and butterfly valve, and the opening of flexible gland is enclosed on to bind on the communicating pipe of adpting flange and fastened；
Or the outer connecting lines of b. disconnecting transformers, maintenance tool and new accessory to be replaced are put into the auxiliary operation cabin
It is interior, the movable sealing cover plate is closed, then the maintenance operation cabin is sleeved on transformer together with the flexible gland
On the adpting flange and butterfly valve of housing, and the opening of flexible gland is enclosed on to bind on the communicating pipe of adpting flange and pricked
Jail；
2) maintenance operation：
A. operator's arm is injected in the flexible operation set, the closure door in the auxiliary operation cabin is opened, from the auxiliary
Maintenance tool of being taken in operational window pulls down butterfly valve and seal, trouble location is overhauled or the seal that more renews or/
And butterfly valve；
Or b. operators arm is injected in the flexible operation set, is taken the gloves, is opened the closure door, is grasped from auxiliary
Make required maintenance tool of being taken in cabin, pull down butterfly valve and seal, trouble location is overhauled, and the damage pulled down is matched somebody with somebody
Part is sent into auxiliary operation cabin, and renewal accessory needed for taking out of auxiliary operation cabin is installed, then by maintenance operation cabin
Maintenance tool be all sent into auxiliary operation cabins, close the closure door；
3) transformer radiating system maintenance unit is pulled down；
A. butterfly valve is closed, unclamps the opening of flexible gland, and the radiating oil discharge in maintenance operation cabin is collected, is taken
Lower maintenance operation cabin and flexible gland, the radiating tube pulled down installation is connected on transformer shell, opens butterfly valve, according to
Conventional method supplements a small amount of transformer oil into transformer shell body.
B. butterfly valve is closed, opens the movable sealing cover plate, all maintenance tools are taken out out of described auxiliary operation cabin
And accessory, then, movable sealing cover plate is closed, open closure door, then drain the oil plug and the exhaust plug are removed, by maintenance operation
Transformer oil in cabin and auxiliary operation cabin is all discharged, and is recycled in access collection vessel, finally, unclamps flexible gland
Opening, remove transformer radiator tube butterfly valve maintenance unit, by the radiating tube pulled down installation be connected on transformer shell, beat
Butterfly valve is driven, a small amount of transformer oil is conventionally supplemented into transformer shell body.
The transformer radiator tube butterfly valve maintenance unit and method for maintaining of the present invention, without by the transformation in transformer shell
Device oil is released and large scale equipment coordinates, and whole maintenance activity only needs 2~3 people to coordinate, you can carries out the maintenance and damage of failure
The replacing of part, substantial amounts of human and material resources and maintenance cost are thus saved, and greatly shorten transformer fault power time, tieed up
Efficiency is repaiied to increase substantially.The apparatus structure is simple, easy to use, securely and reliably, simple and practical.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Referring to Fig. 1, transformer radiator tube butterfly valve maintenance unit of the invention, there is a maintenance operation cabin 5, the maintenance
The side of operational window 5 sets handle hole and flexible operation be connected with handle hole set 6, the opposite side in maintenance operation cabin 6 set and
Connection and the flexible gland 16 that connects.Observation window 10 can be set on the maintenance operation cabin 5, in order to during maintenance operation
Observation.3~4 telescopic outriggers 7 can be set in the bottom in the maintenance operation cabin 5, when maintenance operation cabin 5 is sleeved on transformer shell
After on 1 adpting flange 2 and butterfly valve 4, the position in maintenance operation cabin 5 can be fixed by adjusting telescopic outrigger 7, overcome
The influence of maintenance unit self gravitation, maintenance unit is set to be in the optimum position of maintenance operation all the time.The maintenance operation cabin 5
Lucite or other transparent material products can be used, maintenance observation more facilitates.The opening of the flexible gland 16
Settable clip 17, when flexible gland 16 was enclosed on the communicating pipe of transformer shell adpting flange 2, flexible gland 16
Tie up it is more convenient, sealing it is relatively reliable.The free end of flexible operation set 6 can integrally connected gloves 9, operator holds
It is more convenient, flexible to hold instrument, progress maintenance operation.Auxiliary operation cabin 11 in communication is set on the maintenance operation cabin 5, its
Connect position and closure door 15 is set, the top in auxiliary operation cabin 11 sets object access way mouth, and sets movable sealing cover plate 14.
So, maintenance tool and new and old accessory can be all temporarily stored in auxiliary operation cabin 11, and will not be stored in maintenance operation cabin 5 influences dimension
Operating space is repaiied, or generation maintenance tool or accessory are strayed into the phenomenon in transformer shell 1 during maintenance operation.The dimension
Repair the bottom of operational window 5 and plug 8 of draining the oil is set by drain oil, after the completion of maintenance work, the maintenance operation cabin and auxiliary
Help the discharge of transformer oil in operational window；The top in the auxiliary operation cabin 11 sets exhaust plug 12 by steam vent, is tieing up
, can be by this when the transformer oil in transformer shell 1 enters the maintenance operation cabin 5 and auxiliary operation cabin 11 during repairing
Exhaust plug 12 discharges gas, avoids gas from entering transformer shell 1 and cause the pollution of transformer oil.
Transformer radiator tube butterfly valve method for maintaining of the present invention is described further with reference to embodiment.
Embodiment one
When being used without the transformer radiator tube butterfly valve maintenance unit in auxiliary operation cabin, transformer radiator tube of the present invention
The maintenance of butterfly valve is carried out as follows：
First, the instrument that may be used will be repaired and new accessory to be replaced is put into the maintenance operation cabin 5, will repaired
Operational window 5 is sleeved on the adpting flange 2 and butterfly valve 4 of transformer shell 1 together with the flexible gland 16, and will be soft
Property sealing shroud 16 opening be enclosed on the communicating pipe of adpting flange 2, bound and fastened with tied rope or the clip 17, prevent from becoming
The leakage of depressor oil.So, a closed maintenance work nacelle is just formed.Then, operator's arm injects the flexible behaviour
Make in set 6, wear gloves 9, butterfly valve 4 and seal 3 are pulled down with maintenance tool, trouble location is overhauled or more renewed
Seal 3 or butterfly valve 4.When pulling down butterfly valve 4 and seal 3, the transformer oil in transformer shell 1 will be filled with maintenance behaviour
Make cabin 5, operator will carry out maintenance operation in transformer oil.After the completion of maintenance, first butterfly valve 4 is closed.Then, unclamp
The opening of flexible gland 16, and the transformer oil in maintenance operation cabin 5 is discharged, recycled in access collection vessel.Most
After remove maintenance operation cabin 5 and flexible gland 16, by the radiating tube pulled down installation be connected on transformer shell, either on or off
Butterfly valve, and the transformer oil wiped clean that butterfly valve 4 and the appearance of adpting flange 2 will be sticky deposited in.Due to whole maintenance activity
All being carried out in closed maintenance operation cabin, the number of dropouts of transformer oil is limited with the volume in maintenance operation cabin in transformer shell 1,
0.03% or so of gross weight loading amount only in transformer, therefore after the completion of maintenance, can be according still further to conventional method to transformer shell
The transformer oil of supplement trace in body 1, so far complete transformer radiating system maintenance activity.The transformer radiator tube of the present invention
Butterfly valve method for maintaining, transformer oil is filled with a large amount of without discharge, thus coordinated without large scale equipments such as oil truck and oil pumps,
Whole maintenance activity only needs 2~3 people to coordinate, 20 minutes maintenance activities that can complete butterfly valve.Thus substantially reduce maintenance
Workload and labor intensity, and the efficiency of maintenance activity is greatly improved, shortens power off time, thus also improve
The operational efficiency of transformer.
Embodiment two
When using the transformer radiator tube butterfly valve maintenance unit for carrying auxiliary operation cabin, transformer radiator tube of the present invention
The maintenance of butterfly valve can be carried out as follows：
First, maintenance operation cabin 5 is sleeved on to the adpting flange of transformer shell 1 together with the flexible gland 16
2 and butterfly valve 4 on, and the opening of flexible gland 16 was enclosed on the communicating pipe of adpting flange 2 and uses tied rope or the card
Hoop 17 binds and fastened, then by adjusting the telescopic outrigger 7 that the transformer radiator tube butterfly valve maintenance unit is stable suitable
When position.Then, the movable sealing cover plate 14 in the auxiliary operation cabin 11 is opened, maintenance tool and accessory to be replaced are put into
In auxiliary operation cabin 11, movable sealing cover plate 14 is closed, that is, completes maintenance preparation.Then, described in operator's arm injects
In flexible operation set 6, wear gloves 9, the closure door 15 is opened, required maintenance tool of being taken out of auxiliary operation cabin 11, is pulled down
Butterfly valve 4 and seal 3.After butterfly valve 4 are pulled down, the maintenance operation cabin 5 and auxiliary operation cabin 11 are and transformer shell 1
Connection, transformer oil enter and are full of maintenance operation cabin 5 and auxiliary operation cabin 11.Operator is in transformer oil to failure portion
Position is overhauled, and damage accessory is sent into auxiliary operation cabin 11, then that changes needed for taking out of auxiliary operation cabin 11 new match somebody with somebody
Part is assembled.The maintenance tool in maintenance operation cabin 5 is all sent into auxiliary operation cabin 11 after the completion of maintenance, closes the envelope
Door 15 and butterfly valve 4, open the movable sealing cover plate 14, and all maintenance tools and accessory are taken out from auxiliary operation cabin 11 is interior.
Then, movable sealing cover plate 14 is closed, opens closure door 15, then removes drain the oil plug 8 and the exhaust plug 12, by maintenance operation
Transformer oil in cabin 5 and auxiliary operation cabin 11 is all discharged, and is recycled in access collection vessel.Finally, unclamp flexible close
The opening of big envelope 16, transformer radiator tube butterfly valve maintenance unit is removed, the radiating tube pulled down installation is connected to transformer shell
On body, the butterfly valve of either on or off, and the transformer oil wiped clean that butterfly valve 4 and the appearance of adpting flange 2 will be sticky deposited in.
Whole maintenance activity, the number of dropouts of transformer oil is with the total measurement (volume) in maintenance operation cabin 4 and auxiliary operation cabin 9 in transformer shell 1
It is limited, 0.03% or so of gross weight loading amount only in transformer, therefore after the completion of maintenance can be according still further to conventional method to transformation
Supplement trace transformer oil in device housing 1, so far complete the maintenance activity of transformer radiator tube butterfly valve.Due to the present embodiment
In operation, maintenance tool and the accessory changed are stored in auxiliary operation cabin 11, thus can make full use of maintenance
Space, can also suitably reduce the volume in maintenance operation cabin 5, can also avoid maintenance tool or accessory during maintenance operation from entering
In transformer shell 1.
Claims (5)
1. a kind of transformer radiator tube butterfly valve maintenance unit, there is a maintenance operation cabin, the side in the maintenance operation cabin is set
Put handle hole, it is characterised in that：The maintenance operation cabin sets the flexible operation set being connected with handle hole, maintenance operation cabin it is another
Side sets the flexible gland for being connected and connecting with maintenance operation cabin；Set on the maintenance operation cabin and connect with maintenance operation cabin
Logical auxiliary operation cabin, maintenance operation cabin connect position with auxiliary operation cabin and set closure door, set object to enter at the top of auxiliary operation cabin
Go out passway, and movable sealing cover plate is set；The free end of flexible operation set is connected with gloves, the maintenance operation bilge
Portion sets telescopic outrigger, and the maintenance operation bilge portion sets plug of draining the oil, the top in the auxiliary operation cabin by drain oil
Exhaust plug is set by steam vent.
2. transformer radiator tube butterfly valve maintenance unit as claimed in claim 1, it is characterised in that：On the maintenance operation cabin
Observation window is set.
3. transformer radiator tube butterfly valve maintenance unit as claimed in claim 1, it is characterised in that：The flexible gland
Opening sets clip.
4. transformer radiator tube butterfly valve maintenance unit as claimed in claim 1, it is characterised in that：The maintenance operation cabin is
Transparent material product.
5. the method for maintaining of transformer radiator tube butterfly valve maintenance unit any one of a kind of usage right requirement 1-4, its
It is characterised by：It is to carry out according to the following steps：
A.
1) maintenance prepares：
The outer connecting lines of disconnecting transformer, maintenance tool and new accessory to be replaced are put into the maintenance operation cabin, pull down event
Hinder position radiating tube, by maintenance operation cabin together with the flexible gland be sleeved on transformer shell adpting flange and
On butterfly valve, and the opening of flexible gland is enclosed on to bind on the communicating pipe of adpting flange and fastened；
2) maintenance operation：
Operator's arm is injected in the flexible operation set, the closure door in the auxiliary operation cabin is opened, from the auxiliary operation cabin
Maintenance tool of inside taking pulls down butterfly valve and seal, the seal or/and butterfly for being overhauled to trouble location or more being renewed
Valve；
3) transformer radiator tube butterfly valve maintenance unit is pulled down：
Butterfly valve is closed, unclamps the opening of flexible gland, and the radiating oil discharge in maintenance operation cabin is collected, removes maintenance
Operational window and flexible gland, the radiating tube pulled down installation is connected on transformer shell, butterfly valve is opened, to transformer shell
A small amount of transformer oil is supplemented in vivo；
Or B.
1) maintenance prepares：
The outer connecting lines of disconnecting transformer, maintenance tool and new accessory to be replaced are put into the auxiliary operation cabin, close institute
Movable sealing cover plate is stated, then the maintenance operation cabin is sleeved on to the connection of transformer shell together with the flexible gland
On flange and butterfly valve, and the opening of flexible gland is enclosed on to bind on the communicating pipe of adpting flange and fastened；
2) maintenance operation：
Operator's arm is injected in the flexible operation set, is taken the gloves, is opened the closure door, is taken out of auxiliary operation cabin
Required maintenance tool is taken, butterfly valve and seal is pulled down, trouble location is overhauled, and the damage accessory pulled down feeding is auxiliary
Operational window is helped, and renewal accessory needed for taking out of auxiliary operation cabin is installed, then by the maintenance mans in maintenance operation cabin
Tool is all sent into auxiliary operation cabin, closes the closure door；
3) transformer radiator tube butterfly valve maintenance unit is pulled down：
Butterfly valve is closed, the movable sealing cover plate is opened, all maintenance tools and accessory is taken out out of described auxiliary operation cabin,
Then, movable sealing cover plate is closed, opens closure door, then removes drain the oil plug and exhaust plug, maintenance operation cabin and auxiliary are grasped
The transformer oil made in cabin is all discharged, and is recycled in access collection vessel, finally, is unclamped the opening of flexible gland, take
Lower transformer radiator tube butterfly valve maintenance unit, the radiating tube pulled down installation is connected on transformer shell, opens butterfly
Valve, a small amount of transformer oil is supplemented into transformer shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952383.7A CN105552755B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209565.1A CN102709826B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit and method for maintaining |
| CN201510952383.7A CN105552755B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210209565.1A Division CN102709826B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit and method for maintaining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105552755A CN105552755A (en) | 2016-05-04 |
| CN105552755B true CN105552755B (en) | 2017-11-28 |
Family
ID=46902445
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510952383.7A Active CN105552755B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit |
| CN201210209565.1A Expired - Fee Related CN102709826B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit and method for maintaining |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210209565.1A Expired - Fee Related CN102709826B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit and method for maintaining |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105552755B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104821502B (en) * | 2015-05-27 | 2017-06-23 | 国网山东省电力公司平阴县供电公司 | Fan of dry type transformer apparatus for examination and repair |
| CN108630421A (en) * | 2018-04-24 | 2018-10-09 | 广州发展集团股份有限公司 | Forced oil-circulation transformer oil-immersed pump replacing options |
| CN111515212B (en) * | 2020-04-24 | 2021-11-05 | 中国科学院空天信息创新研究院 | Online cleaning maintenance device and method for side-hung laser |
| CN113266725A (en) * | 2021-05-17 | 2021-08-17 | 点夺机电工程江苏有限公司 | On-line operation zero-leakage sealer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692381A (en) * | 2009-09-11 | 2010-04-07 | 江苏省电力公司句容市供电公司 | Replacing device and replacing method for butterfly valve of main transformer |
| CN201478054U (en) * | 2009-09-11 | 2010-05-19 | 江苏省电力公司句容市供电公司 | Disc valve replacing apparatus for main transformer |
| CN201827390U (en) * | 2010-09-20 | 2011-05-11 | 天工阀门集团有限公司 | Triple eccentric multilayer hard seal butterfly valve with access hole |
| CN201884685U (en) * | 2010-12-01 | 2011-06-29 | 沈阳市银海电器有限公司 | Butterfly valve for transformer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58206844A (en) * | 1982-05-27 | 1983-12-02 | Mikuni Kogyo Co Ltd | Device for controlling supply of fuel for internal- combustion engine |
| JP3716695B2 (en) * | 1999-12-24 | 2005-11-16 | 日本電気株式会社 | Fast Hadamard transformer |
| CN1759996A (en) * | 2005-02-18 | 2006-04-19 | 刘亚州 | Glove box |
| CN101714449A (en) * | 2008-10-08 | 2010-05-26 | 国网运行有限公司上海超高压管理处 | Transformer accessory replacing method |
| CN202668564U (en) * | 2012-06-25 | 2013-01-16 | 河南省电力公司南阳供电公司 | Maintaining device for butterfly valve of radiating pipe of transformer |
-
2012
- 2012-06-25 CN CN201510952383.7A patent/CN105552755B/en active Active
- 2012-06-25 CN CN201210209565.1A patent/CN102709826B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692381A (en) * | 2009-09-11 | 2010-04-07 | 江苏省电力公司句容市供电公司 | Replacing device and replacing method for butterfly valve of main transformer |
| CN201478054U (en) * | 2009-09-11 | 2010-05-19 | 江苏省电力公司句容市供电公司 | Disc valve replacing apparatus for main transformer |
| CN201827390U (en) * | 2010-09-20 | 2011-05-11 | 天工阀门集团有限公司 | Triple eccentric multilayer hard seal butterfly valve with access hole |
| CN201884685U (en) * | 2010-12-01 | 2011-06-29 | 沈阳市银海电器有限公司 | Butterfly valve for transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102709826B (en) | 2016-01-20 |
| CN102709826A (en) | 2012-10-03 |
| CN105552755A (en) | 2016-05-04 |
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