CN203119358U - Bell jar type transformer lifting device - Google Patents
Bell jar type transformer lifting device Download PDFInfo
- Publication number
- CN203119358U CN203119358U CN 201320057498 CN201320057498U CN203119358U CN 203119358 U CN203119358 U CN 203119358U CN 201320057498 CN201320057498 CN 201320057498 CN 201320057498 U CN201320057498 U CN 201320057498U CN 203119358 U CN203119358 U CN 203119358U
- Authority
- CN
- China
- Prior art keywords
- transformer
- lifting device
- load voltage
- type transformer
- bell jar
- 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.)
- Expired - Lifetime
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- 230000001681 protective effect Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 5
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model relates to a bell jar type transformer lifting device, and belongs to the field of electric power construction. The lifting device comprises a transformer, two sides of a top end of an oil tank of a transformer on-load voltage regulation switch are provided with mounting flanges, and gaps are arranged between the mounting flanges and a top of a transformer housing. The bell jar type transformer lifting device overcomes drawbacks of the prior art, and is used for shortening the construction period of replacing the on-load voltage regulation switch and improving replacement efficiency.
Description
Technical field
The utility model relates to a kind of bell-jar transformer lifting device, belongs to the power construction field.
Background technology
Along with the fast development of electrical network, higher to the operational reliability requirement of transformer.Move transformer more than 15 years in the transformer station, its on-load voltage regulating switch pressure regulation time number average is more than 20000 times, and reasons such as dynamic and static contact burning and mechanical part wearing and tearing cause ratio of defects to improve year by year, influence the transformer safe and reliable operation.Add the homemade on-load voltage regulating switch manufacturing process in top, the parts quality problems can't reach its designed life.This will badly influence the reliability service of transformer.Now the replacing on-load voltage regulation technology of Zhi Hanging is to carry out when the transformer overhaul, and long in time limit, workload is big.The higher area of air-borne dust content threatens to long-time exposed transformer core and coil cleanliness factor, influences the operational reliability of transformer.How to change on-load voltage regulating switch fast and be the difficult problem that present power construction system runs into.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of bell-jar transformer lifting device that can overcome above-mentioned defective is provided, is used for shortening the construction period of changing on-load voltage regulating switch.
The lifting device that the utility model provides comprises transformer, and there is mounting flange the both sides on the fuel tank top of on-load tap-changer of transformer, and the space is arranged at mounting flange and transformer case top.
The outer casing underpart of described transformer has manhole.
Described on-load tap-changer of transformer is sleeved in the protective jacket, and the bore of described protective jacket is stretched out by the gap at mounting flange and transformer case top.
Bell-jar transformer lifting device provided by the utility model is rationally effective, does not need 220kV or 110kV power transformer carried out large repairs to hang cover work, can finish the bell-jar on-load voltage regulating switch and remove, and new case top formula on-load voltage regulating switch is installed.Present technique is optimized 15 original standard operation flow processs to simplify 6 flow processs.Use this technology, the duration that can change on-load voltage regulating switch shortens 60%, and takies situation the same period that significantly reduces personnel, reduces special vehicle and uses, and reduces the use of all kinds of goods and materials in a large number, and financial resources use manpower and material resources sparingly.Reduce the transformer body exposed time at the scene, and transformer is moved in advance, improved electric network reliability.This replacing technology is to guarantee that no metal dust enters under the prerequisite of transformer inside, use specific purpose tool to separate the on-load voltage regulating switch mounting flange bigger than transformer tank top flange port diameter, make it less than the top flange mouth, the mode that tap changer is hung out with crane is finished the dismounting of bell-jar on-load voltage regulating switch then, installs the case top formula on-load voltage regulating switch that new employing does not have the mounting flange design then.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1, on-load voltage regulating switch; 2, mounting flange; 3, transformer case; 4, space; 5,
Protective jacket; 6, manhole.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Specific embodiment:
At first to the power transformer processing of draining the oil, open manhole then, transformer inside is ventilated.After meeting condition of work, the staff enters transformer inside by manhole, behind dismounting on-load voltage regulating switch lead-in wire and the top cover, flange separate, dedicated protective jacket is sent into from manhole, be inserted in from the bottom with Switch main body integral body, the bore place of protective jacket is stretched out by transformer tank top flange port.Used singly to advance the formula cast-cutting saw mounting flange of bell-jar on-load voltage regulating switch is separated by the staff then, by crane its integral body is hung out then.New case top formula is installed then to be had at tap changer.After installment work is finished, transformer is carried out vacuum oil, work such as venting.After high voltage test was qualified, transformer resumed operation.
Effect:
By to two 110kV transformers, the replacing of three 220kV on-loads tap-changer of transformer, new technology is quoted well.Transformer after the replacing is stable.New technology is simple to operate, workload reduces, realize that first transformer does not fall cover and changes more changing jobs of bell-jar on-load voltage regulating switch, initiative adopts patterning method to carry out more changing jobs of on-load voltage regulating switch at home, finishes more the changing jobs of on-load voltage regulating switch of power transformer first in 5 days.
| Project name | Standard operation | The new technology actual value |
| The operation duration | 14 |
5 days |
| Personnel attrition | 15 |
6 people |
| Resource consumption | 160 kinds | 37 kinds |
| |
6 | 3 |
The effect contrast table
Performance analysis:
Though enforcement complexity, technical equipment, level of skill are had relatively high expectations, The application of new technique can be changed on-load voltage regulating switch work for the transformer of a 220kV save 2,260,000 yuan.New technology has reduced resources consumption, energy resource consumption, manually expended and has significantly improved operating speed.My company has employed new technology comprehensively and has carried out operation at present.
Bell-jar transformer lifting device as shown in Figure 1 comprises transformer, and there is mounting flange 2 both sides on the fuel tank top of on-load tap-changer of transformer 1, and mounting flange 2 has space 4 with transformer case 3 tops.Transformer case 3 bottoms have manhole 6.
On-load tap-changer of transformer 1 is sleeved in the protective jacket 5, and the bore of protective jacket 5 is stretched out by 4 places, space at mounting flange 2 and transformer case 3 tops.
By protective jacket reasonably is set, and for protective jacket 5 provides the installation site, during use mounting flange 2 excision backs just can conveniently be hung out on-load voltage regulating switch 1 by lifting protective jacket 5, be convenient for changing, keep in repair, increase work efficiency.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057498 CN203119358U (en) | 2013-01-31 | 2013-01-31 | Bell jar type transformer lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320057498 CN203119358U (en) | 2013-01-31 | 2013-01-31 | Bell jar type transformer lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119358U true CN203119358U (en) | 2013-08-07 |
Family
ID=48899676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320057498 Expired - Lifetime CN203119358U (en) | 2013-01-31 | 2013-01-31 | Bell jar type transformer lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066514A (en) * | 2013-01-31 | 2013-04-24 | 山东电力集团公司淄博供电公司 | Method and device for lifting immersion bell type transformer |
-
2013
- 2013-01-31 CN CN 201320057498 patent/CN203119358U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066514A (en) * | 2013-01-31 | 2013-04-24 | 山东电力集团公司淄博供电公司 | Method and device for lifting immersion bell type transformer |
| CN103066514B (en) * | 2013-01-31 | 2016-08-24 | 国网山东省电力公司淄博供电公司 | Bell-jar transformer method for improving and lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |