CN105552755A - Apparatus for maintaining radiating tubes and butterfly valves of transformer - Google Patents
Apparatus for maintaining radiating tubes and butterfly valves of transformer Download PDFInfo
- Publication number
- CN105552755A CN105552755A CN201510952383.7A CN201510952383A CN105552755A CN 105552755 A CN105552755 A CN 105552755A CN 201510952383 A CN201510952383 A CN 201510952383A CN 105552755 A CN105552755 A CN 105552755A
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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.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 claims abstract description 163
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 29
- 239000013589 supplement Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000321885 Lampides boeticus Species 0.000 description 1
- 241000143987 Parnassiinae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 108010066278 cabin-4 Proteins 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009466 transformation Effects 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 an apparatus for maintaining radiating tubes and butterfly valves of a transformer. The apparatus is provided with a maintenance operating cabin, wherein an operating hole and a flexible operating sleeve connected with the operating hole are arranged on one side of the maintenance operating cabin; and a flexible sealing sleeve communicated with the maintenance operating cabin is arranged on the other side of the maintenance operating cabin. When the apparatus is used for maintaining a radiating system of the transformer, transformer oil discharge from the transformer shell and matching of large-scale equipment are not required; instead, the maintenance operation only requires 2-3 operators to perform fault overhaul and replacement of damaged parts, so that a large amount of manpower, material resources and maintenance cost can be saved; meanwhile, the apparatus is simple in structure, convenient to use, safe, reliable, simple, convenient and practical; and the maintenance method is simple and convenient to operate, the machine halt time for maintenance of the transformer is greatly shortened, and the maintenance efficiency is greatly improved.
Description
Technical field
The present invention relates to electric equipment maintenance technical field, particularly relate to a kind of transformer radiator tube butterfly valve maintenance unit.
Background technology
In the known technology of structure, transformer generally comprises transformer shell and is laid in its week side and the multiple radiating tubes be communicated with it, is filled with transformer oil, for heat radiation and the insulation of Transformer in transformer shell and radiating tube.All adpting flange is provided with butterfly valve, for the maintenance of cooling system at the connecting portion of each radiating tube and transformer shell.And in the actual moving process of transformer, generation is that the seal of described butterfly valve and connecting portion thereof easily damages the most frequently, and causing the malfunctioning of the leakage of transformer oil or transformer oil loop control, the quantity of radiating tube and butterfly valve is more in addition, so the frequency of maintenance is a lot.Maintenance at present to such fault, normally first will the main equipment such as oil truck, oil pump, vacuum pump be equipped be needed to be organized into scene, then disconnecting transformer connects circuits, the radiating tube broken down is removed, by oil pump, the transformer oil in transformer shell is all found time again, and put into oil truck, then could be removed for repair or replacement butterfly valve and sealing ring.Meanwhile, after maintenance work completes, also need under the cooperation of vacuum pump, transformer shell and all radiating tubes are all full of transformer oil, the debugging of transformer, energising, operation can be carried out.The major defect of this method for maintaining is: 1) need to coordinate the main equipments such as oil truck, oil pump, vacuum pump, and need many people to coordinate, workload is large, and labour intensity is high; 2) several tons at least, the transformer oil in transformer, tens tons at most, even tens of ton, whole emptying, is more all full of, and workload is very large, need the time long, have a strong impact on maintenance efficiency, and transformer oil easily pollutes; 2) because maintenance overall process must be carried out under power down mode, maintenance time is long, certainly will affect the operation of whole power transmission and transformation system, brings comparatively serious impact and economic loss to power supply enterprise and user.
Summary of the invention
The object of the invention is the defect overcoming prior art, there is provided a kind of without the need to being released by the cold oil in transformer shell and main equipment cooperation, the maintenance of fault and the replacing of damaged part can be carried out, structure is simple, easy and simple to handle, maintenance efficiency is high, the transformer radiator tube butterfly valve maintenance unit that cost is low.
Realizing the technical scheme that object of the present invention adopts is: a kind of transformer radiator tube butterfly valve maintenance unit, there is a maintenance operation cabin, the setting operation hole, side in this maintenance operation cabin, it is characterized in that: described maintenance operation cabin arranges the flexible operation cover be connected with handle hole, the opposite side in maintenance operation cabin arranges and is connected and the flexible gland be communicated with maintenance operation cabin; Described maintenance operation cabin is arranged and is communicated with auxiliary operation cabin with maintenance operation cabin, maintenance operation cabin is communicated with position and arranges and seal up a door with auxiliary operation cabin, top, auxiliary operation cabin arranges object access way mouth, and arranges movable sealing cover plate; The free end of flexible operation cover is connected with gloves, and described maintenance operation bilge portion arranges telescopic outrigger, and described maintenance operation bilge portion arranges by drain oil plug of draining the oil, and the top in described auxiliary operation cabin arranges exhaust plug by steam vent.
As further preferred version, described maintenance operation cabin arranges observation window.
As further another preferred version, the opening of described flexible gland arranges clip.
As further another preferred version, described maintenance operation cabin is transparent material product.
Using a method for maintaining for described transformer radiator tube butterfly valve maintenance unit, is carry out according to the following steps:
1) maintenance prepares:
A. the outer line road of disconnecting transformer, maintenance tool and new accessory to be replaced are put into described maintenance operation cabin, pull down the radiating tube of trouble location, on the adpting flange that maintenance operation cabin is sleeved on transformer shell together with described flexible gland and butterfly valve, and the communicating pipe opening of flexible gland being enclosed within adpting flange upper encircling fastens;
Or the outer line road of b. disconnecting transformer, maintenance tool and new accessory to be replaced are put into described auxiliary operation cabin, close described movable sealing cover plate, on the adpting flange more described maintenance operation cabin being sleeved on transformer shell together with described flexible gland and butterfly valve, and the communicating pipe opening of flexible gland being enclosed within adpting flange upper encircling fastens;
2) maintenance operation:
A. operator's arm injects in described flexible operation cover, and open sealing up a door of described auxiliary operation cabin, maintenance tool of taking in described auxiliary operation cabin pulls down butterfly valve and seal, trouble location is overhauled or the seal that more renews or/and butterfly valve;
Or b. operator arm injects in described flexible operation cover, bring described gloves, seal up a door described in opening, to take in auxiliary operation cabin required maintenance tool, pull down butterfly valve and seal, trouble location is overhauled, and the damage accessory pulled down is sent into auxiliary operation cabin, and the required accessory that upgrades of taking in auxiliary operation cabin is installed, and then the maintenance tool in maintenance operation cabin is all sent into auxiliary operation cabin, seals up a door described in closedown;
3) transformer radiating system maintenance unit is pulled down;
A. butterfly valve is closed, unclamp the opening of flexible gland, and the heat radiation oil in maintenance operation cabin is discharged collection, take off maintenance operation cabin and flexible gland, being installed by the radiating tube pulled down is connected on transformer shell, open butterfly valve, conventionally in transformer shell, supplement a small amount of transformer oil.
B. butterfly valve is closed, open described movable sealing cover plate, all maintenance tools and accessory is taken out in described auxiliary operation cabin, then, close movable sealing cover plate, open and seal up a door, drain the oil described in taking off again plug and exhaust plug, transformer oil in maintenance operation cabin and auxiliary operation cabin is all discharged, recycling in access collection container, finally, unclamp the opening of flexible gland, take off transformer radiator tube butterfly valve maintenance unit, being installed by the radiating tube pulled down is connected on transformer shell, open butterfly valve, conventionally in transformer shell, supplement a small amount of transformer oil.
Transformer radiator tube butterfly valve maintenance unit of the present invention and method for maintaining; without the need to the transformer oil in transformer shell being released and main equipment cooperation; whole maintenance activity only needs 2 ~ 3 people to coordinate; the maintenance of fault and the replacing of damaged part can be carried out; save a large amount of human and material resources and maintenance cost thus; and transformer fault power time is shortened greatly, maintenance efficiency increases substantially.This apparatus structure is simple, easy to use, safe and reliable, simple and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Referring to Fig. 1, transformer radiator tube butterfly valve maintenance unit of the present invention, have a maintenance operation cabin 5, the setting operation hole, side in this maintenance operation cabin 5 and the flexible operation be connected with handle hole overlap 6, and the opposite side in maintenance operation cabin 6 arranges and is attached thereto and the flexible gland 16 be communicated with.Described maintenance operation cabin 5 can arrange observation window 10, so that observation during maintenance operation.The bottom in described maintenance operation cabin 5 can arrange 3 ~ 4 telescopic outriggers 7, when maintenance operation cabin 5 is sleeved on after on the adpting flange 2 of transformer shell 1 and butterfly valve 4, position by adjusting telescopic outrigger 7 pairs of maintenance operation cabins 5 is fixed, overcome the impact of maintenance unit self gravitation, make maintenance unit be in the optimum position of maintenance operation all the time.Described maintenance operation cabin 5 also can adopt polymethyl methacrylate or other transparent material product, and maintenance is observed convenient.The opening of described flexible gland 16 can arrange clip 17, and when the communicating pipe that flexible gland 16 is enclosed within transformer shell adpting flange 2 is upper, tying up of flexible gland 16 is more convenient, seals more reliable.The free end of described flexible operation cover 6 can integrally connect gloves 9, and operator's holding tool, to carry out maintenance operation flexibly convenient.Described maintenance operation cabin 5 is arranged and is communicated with auxiliary operation cabin 11 with it, it is communicated with position setting and seals up a door 15, and the top in auxiliary operation cabin 11 arranges object access way mouth, and arranges movable sealing cover plate 14.Like this, maintenance tool and new and old accessory all can be temporarily stored in auxiliary operation cabin 11, and unlikely leaving in maintenance operation cabin 5 affects maintenance operation space, or maintenance tool or accessory occur in maintenance operation process are strayed into phenomenon in transformer shell 1.The bottom in described maintenance operation cabin 5 arranges by drain oil plug 8 of draining the oil, after completing for maintenance work, and the discharge of transformer oil in described maintenance operation cabin and auxiliary operation cabin; The top in described auxiliary operation cabin 11 arranges exhaust plug 12 by steam vent, in maintenance process, when transformer oil in transformer shell 1 enters described maintenance operation cabin 5 and auxiliary operation cabin 11, by this exhaust plug 12, gas is discharged, avoid gas enter transformer shell 1 and cause the pollution of transformer oil.
Below in conjunction with embodiment, transformer radiator tube butterfly valve method for maintaining of the present invention is described further.
Embodiment one
When using the transformer radiator tube butterfly valve maintenance unit not with auxiliary operation cabin, the maintenance of transformer radiator tube butterfly valve of the present invention is carried out as follows:
First, the instrument may use maintenance and new accessory to be replaced put into described maintenance operation cabin 5, on the adpting flange 2 that maintenance operation cabin 5 is sleeved on transformer shell 1 together with described flexible gland 16 and butterfly valve 4, and the opening of flexible gland 16 is enclosed within the communicating pipe of adpting flange 2, bind with tied rope or described clip 17 and fasten, prevent the leakage of transformer oil.Like this, the workover module body that just formation one is airtight.Then, operator's arm injects in described flexible operation cover 6, brings gloves 9, pulls down butterfly valve 4 and seal 3 with maintenance tool, overhauls or the seal 3 that more renews or butterfly valve 4 to trouble location.When pulling down butterfly valve 4 and seal 3, the transformer oil in transformer shell 1 will be full of maintenance operation cabin 5, and operator will carry out maintenance operation in transformer oil.After maintenance completes, first butterfly valve 4 cuts out.Then, unclamp the opening of flexible gland 16, and the transformer oil in maintenance operation cabin 5 is discharged, recycling in access collection container.Finally take off maintenance operation cabin 5 and flexible gland 16, the radiating tube pulled down is installed and is connected on transformer shell, open the butterfly valve of closedown, and will the transformer oil wiped clean of butterfly valve 4 and adpting flange 2 appearance be sticky deposited in.Because whole maintenance activity all carries out in airtight maintenance operation cabin, in transformer shell 1, the number of dropouts of transformer oil is limited with the volume in maintenance operation cabin, be only about 0.03% of gross weight loading amount in transformer, therefore after maintenance completes, again conventionally to the transformer oil of supplement trace in transformer shell 1, so far can namely complete transformer radiating system maintenance activity.Transformer radiator tube butterfly valve method for maintaining of the present invention, without the need to discharging and filling transformer oil in a large number, thus coordinates without the need to the main equipment such as oil truck and oil pump, and whole maintenance activity only needs 2 ~ 3 people to coordinate, and within 20 minutes, can complete the maintenance activity of butterfly valve.Thus substantially reduce workload and the labour intensity of maintenance, and increased substantially the efficiency of maintenance activity, shorten interruption duration, also improve the operational efficiency of transformer thus.
Embodiment two
When using the transformer radiator tube butterfly valve maintenance unit with auxiliary operation cabin, the maintenance of transformer radiator tube butterfly valve of the present invention can be carried out as follows:
First, on the adpting flange 2 that maintenance operation cabin 5 is sleeved on transformer shell 1 together with described flexible gland 16 and butterfly valve 4, and the communicating pipe opening of flexible gland 16 being enclosed within adpting flange 2 bind with tied rope or described clip 17 fasten, then by the described telescopic outrigger 7 of adjustment by stable for described transformer radiator tube butterfly valve maintenance unit in position.Subsequently, open the movable sealing cover plate 14 in described auxiliary operation cabin 11, maintenance tool and accessory to be replaced are put into auxiliary operation cabin 11, close movable sealing cover plate 14, namely complete maintenance preparation.Then, operator's arm injects in described flexible operation cover 6, and bring gloves 9, seal up a door 15 described in opening, required maintenance tool of taking in auxiliary operation cabin 11, pulls down butterfly valve 4 and seal 3.After pulling down butterfly valve 4, namely described maintenance operation cabin 5 is communicated with transformer shell 1 with auxiliary operation cabin 11, and namely transformer oil enters and be full of maintenance operation cabin 5 and auxiliary operation cabin 11.Operator overhauls trouble location in transformer oil, and will damage accessory feeding auxiliary operation cabin 11, the more required new accessory changed of taking in auxiliary operation cabin 11 is assembled.After having keeped in repair, the maintenance tool in maintenance operation cabin 5 is all sent into auxiliary operation cabin 11, seal up a door described in closedown 15 and butterfly valve 4, open described movable sealing cover plate 14, in auxiliary operation cabin 11, take out all maintenance tools and accessory.Then, close movable sealing cover plate 14, open and seal up a door 15, then drain the oil described in taking off plug 8 and exhaust plug 12, the transformer oil in maintenance operation cabin 5 and auxiliary operation cabin 11 is all discharged, recycling in access collection container.Finally, unclamp the opening of flexible gland 16, take off transformer radiator tube butterfly valve maintenance unit, the radiating tube pulled down is installed and is connected on transformer shell, open the butterfly valve of closedown, and will the transformer oil wiped clean of butterfly valve 4 and adpting flange 2 appearance be sticky deposited in.Whole maintenance activity, in transformer shell 1, the number of dropouts of transformer oil is limited with the total measurement (volume) in maintenance operation cabin 4 and auxiliary operation cabin 9, be only about 0.03% of gross weight loading amount in transformer, therefore after maintenance completes, again conventionally to supplement trace transformer oil in transformer shell 1, so far can namely complete the maintenance activity of transformer radiator tube butterfly valve.Due to the present embodiment in operation, the accessory of maintenance tool and replacing all leaves in auxiliary operation cabin 11, thus service clearance can be made full use of, also suitably can reduce the volume in maintenance operation cabin 5, maintenance tool or accessory in maintenance operation process also can be avoided to enter in transformer shell 1.
Claims (5)
1. a transformer radiator tube butterfly valve maintenance unit, there is a maintenance operation cabin, the setting operation hole, side in this maintenance operation cabin, it is characterized in that: described maintenance operation cabin arranges the flexible operation cover be connected with handle hole, the opposite side in maintenance operation cabin arranges and is connected and the flexible gland be communicated with maintenance operation cabin; Described maintenance operation cabin is arranged and is communicated with auxiliary operation cabin with maintenance operation cabin, maintenance operation cabin is communicated with position and arranges and seal up a door with auxiliary operation cabin, top, auxiliary operation cabin arranges object access way mouth, and arranges movable sealing cover plate; The free end of flexible operation cover is connected with gloves, and described maintenance operation bilge portion arranges telescopic outrigger, and described maintenance operation bilge portion arranges by drain oil plug of draining the oil, and the top in described auxiliary operation cabin arranges exhaust plug by steam vent.
2. transformer radiator tube butterfly valve maintenance unit as claimed in claim 1, is characterized in that: described maintenance operation cabin arranges observation window.
3. transformer radiator tube butterfly valve maintenance unit as claimed in claim 1, is characterized in that: the opening of described flexible gland arranges clip.
4. transformer radiator tube butterfly valve maintenance unit as claimed in claim 1, is characterized in that: described maintenance operation cabin is transparent material product.
5. use a method for maintaining for transformer radiator tube butterfly valve maintenance unit according to any one of claim 1-4, it is characterized in that: it carries out according to the following steps:
A.
1) maintenance prepares:
The outer line road of disconnecting transformer, maintenance tool and new accessory to be replaced are put into described maintenance operation cabin, pull down the radiating tube of trouble location, on the adpting flange that maintenance operation cabin is sleeved on transformer shell together with described flexible gland and butterfly valve, and the communicating pipe opening of flexible gland being enclosed within adpting flange upper encircling fastens;
2) maintenance operation:
Operator's arm injects in described flexible operation cover, and open sealing up a door of described auxiliary operation cabin, maintenance tool of taking in described auxiliary operation cabin pulls down butterfly valve and seal, trouble location is overhauled or the seal that more renews or/and butterfly valve;
3) transformer radiator tube butterfly valve maintenance unit is pulled down:
Close butterfly valve, unclamp the opening of flexible gland, and the heat radiation oil in maintenance operation cabin is discharged collection, take off maintenance operation cabin and flexible gland, being installed by the radiating tube pulled down is connected on transformer shell, opens butterfly valve, in transformer shell, supplement a small amount of transformer oil;
Or B.
1) maintenance prepares:
The outer line road of disconnecting transformer, maintenance tool and new accessory to be replaced are put into described auxiliary operation cabin, close described movable sealing cover plate, on the adpting flange more described maintenance operation cabin being sleeved on transformer shell together with described flexible gland and butterfly valve, and the communicating pipe opening of flexible gland being enclosed within adpting flange upper encircling fastens;
2) maintenance operation:
Operator's arm injects in described flexible operation cover, bring described gloves, seal up a door described in opening, to take in auxiliary operation cabin required maintenance tool, pull down butterfly valve and seal, trouble location is overhauled, and the damage accessory pulled down is sent into auxiliary operation cabin, and the required accessory that upgrades of taking in auxiliary operation cabin is installed, and then the maintenance tool in maintenance operation cabin is all sent into auxiliary operation cabin, seals up a door described in closedown;
3) transformer radiator tube butterfly valve maintenance unit is pulled down:
Close butterfly valve, open described movable sealing cover plate, all maintenance tools and accessory is taken out in described auxiliary operation cabin, then, close movable sealing cover plate, open and seal up a door, take off drain the oil plug and exhaust plug again, transformer oil in maintenance operation cabin and auxiliary operation cabin is all discharged, recycling in access collection container, finally, unclamp the opening of flexible gland, take off transformer radiator tube butterfly valve maintenance unit, being installed by the radiating tube pulled down is connected on transformer shell, open butterfly valve, a small amount of transformer oil is supplemented in transformer shell.
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 true CN105552755A (en) | 2016-05-04 |
| CN105552755B CN105552755B (en) | 2017-11-28 |
Family
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Family Applications (2)
| 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 |
| CN201510952383.7A Active CN105552755B (en) | 2012-06-25 | 2012-06-25 | Transformer radiator tube butterfly valve maintenance unit |
Family Applications Before (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) | CN102709826B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515212A (en) * | 2020-04-24 | 2020-08-11 | 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 |
Families Citing this family (2)
| 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 |
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| JP2001184337A (en) * | 1999-12-24 | 2001-07-06 | Nec Corp | High speed hadamard transformer |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 CN201210209565.1A patent/CN102709826B/en not_active Expired - Fee Related
- 2012-06-25 CN CN201510952383.7A patent/CN105552755B/en active Active
Patent Citations (6)
| 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 |
| JP2001184337A (en) * | 1999-12-24 | 2001-07-06 | Nec Corp | High speed hadamard transformer |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515212A (en) * | 2020-04-24 | 2020-08-11 | 中国科学院空天信息创新研究院 | Online cleaning maintenance device and method for side-hung laser |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105552755B (en) | 2017-11-28 |
| CN102709826B (en) | 2016-01-20 |
| CN102709826A (en) | 2012-10-03 |
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Effective date of registration: 20171009 Address after: 400054 democratic Street, Huaxi street, Banan District, Chongqing Applicant after: Chongqing ou Ronglai Auto Parts Co.,Ltd. Address before: 450016 Zhengzhou economic and Technological Development Zone, No. 1356 East Road, sailing, the sea of sand, the Department of park, room, room, No. 217, Henan Applicant before: ZHENGZHOU SIBIAN TECHNOLOGY Co.,Ltd. |
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