CN2033939U - Full sealing cold expansion device - Google Patents
Full sealing cold expansion device Download PDFInfo
- Publication number
- CN2033939U CN2033939U CN 88210624 CN88210624U CN2033939U CN 2033939 U CN2033939 U CN 2033939U CN 88210624 CN88210624 CN 88210624 CN 88210624 U CN88210624 U CN 88210624U CN 2033939 U CN2033939 U CN 2033939U
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- CN
- China
- Prior art keywords
- expansion joint
- cooling
- oil
- joint
- insulating oil
- 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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Abstract
The utility model belongs to a heat radiation cooling and volume compensation device of the high voltage electrical device product. The exiting device separates heat radiation cooling into volume compensation to solve, and the humidity resistance is not very ideal. The high voltage electrical device product goes on with drying process for the insulating oil at regular intervals. The production is influenced, and as well as the large funds is consumed. The full sealing cold expansion device of the utility model adopts a corrugated plate, and a fully sealed expansion joint is formed. The heat radiation cooling and the volume compensation are solved. Simultaneously the utility model prevents the insulating oil which is contacted with the atmospheric air from wetting. The service life of the high voltage electrical device product of filling the insulating oil is extended. The insulating oil is not required to go on with drying process periodically.
Description
The utility model belongs to the high voltage electric appliance annex, and particularly a kind of assurance is filled with the hermetically sealed heat radiation cooling expansion compensation device of the high voltage electric appliance long-term safety operation of insulating oil.
High voltage electric appliance comprises transformer, instrument transformer, power capacitor etc., in order to insulate and heat conducting needs, fill insulating oil in mostly being, the volume of insulating oil will expand along with variation of temperature or shrink, insulating oil is made moist and destroy insulation in order to compensate its volume-variation, each state is all taking different measures at present.The moistureproof solution of insulating oil is example with the transformer, and having of adopting at present adds encapsulated sealing on oil conservator, nitrogen-filled seal, and devices such as silica dehydrator contact with air and make moist to reduce insulating oil.The heat radiation solution of insulating oil is example with the transformer, that adopts at present has a heat dissipation metal pipe, forced air cooler, water cooler, gilled radiator etc., these devices all are that heat radiation cooling and volume-variation are separately solved, and the device that the solution insulation is made moist is mostly very imperfect, therefore transformer will expend substantial contribution at regular intervals, have a power failure to carry out the dried of insulating oil, recently, development abroad corrugated tank, try hard to heat radiation cooling and volume-variation are solved together, but owing to be stressed and the cubage compensation quantitative limitation, only on probation in miniature transformer at present.
The purpose of this utility model is to provide a kind of heat radiation cooling and cubage compensation that solves insulating oil in the high voltage electric appliance, prevents the hermetically sealed cooling expander that the insulating oil ingress of air makes moist.
Hermetically sealed cooling expander of the present utility model comprises expansion joint, cooling joint, oil inlet pipe, flowline and securing member.Described expansion joint comprises end expansion joint and middle expansion joint, the end expansion joint is by the metal cylinder and is fixed on the corrugated plating at its two ends and the sealed cavity structure of the inflatable and contraction that metallic plate constitutes, middle expansion joint is the inflatable and sealed cavity structure of shrinking that is made of metal cylinder and the corrugated plating that is fixed on its two ends, the cooling joint has air admission hole and steam vent for the metal cylinder on it.Expansion joint and cooling save alternately, and two ends are middle expansion joint for end expansion joint middle part, and are fastenedly connected by screw bolt and nut.Oil inlet pipe and flowline are separately fixed at the above and below of expansion joint, and communicate with each expansion joint with oil distributing pipe, when the outlet of the import of oil inlet pipe and flowline respectively when oil pipe on the oil tank of transformer links to each other, if oily temperature rise in the transformer, the volume of oil increases, oil just by oil inlet pipe and on oil distributing pipe enter in each expansion joint, corrugated plating is outwards heaved.Otherwise if oily temperature drop is low, the volume of oil reduces, and the oil in each expansion joint just enters oil tank of transformer by oil distributing pipe, and corrugated plate just caves inward.Air is then entered by the air admission hole on the cooling joint, is discharged by steam vent, constantly the heat of oil is taken away and is made the insulating oil cooling, and the quantity of expansion joint and the shape of corrugated plating and size are determined by the volume of insulating oil.
The utility model has the advantages that collecting and distributing heat cooling and cubage compensation are in one, adopt full-sealing device, make insulating oil and Atmospheric Long-term isolated, prevent that the insulating oil ingress of air from making moist, therefore needn't regularly carry out dried to insulating oil, save substantial contribution, be applicable to the big medium and small high voltage electric appliance that is filled with insulating oil of new system, also be applicable to the repacking old product.
Fig. 1 is the front view of erect-type hermetically sealed cooling expander of the present utility model, 1 end expansion joint among the figure, 2 oil inlet pipes, expansion joint in 3,4 cooling joints, 5 backplates, 6 bolts, 7 nuts, 8 flowlines.
Fig. 2 is the right view of erect-type hermetically sealed cooling expander of the present utility model, 5 backplates among the figure, 9 oil inlet pipe flanges, 10 reinforcements, 11 flowline flanges.
Fig. 3 is the partial enlarged drawing of I among Fig. 1, among the figure: 12 metal cylinders, 13 corrugated platings.
Fig. 4 is the partial enlarged drawing of II among Fig. 1, among the figure: 12 metal cylinders, 13 corrugated platings, 14 metallic plates.
Fig. 5 is the front view of the hermetically sealed cooling expander of horizontal type of the present utility model.
Fig. 6 is the vertical view of the hermetically sealed cooling expander of horizontal type of the present utility model.
Fig. 7 is the left view of the hermetically sealed cooling expander of horizontal type of the present utility model.1 end expander among the figure, 2 oil inlet pipes, expansion joint in 3,4 cooling joints, 5 guard shields, 6 bolts, 7 nuts, 8 flowlines, 9 oil inlet pipe flanges, 11 flowline flanges.
Embodiment:
Referring to Fig. 1～4, be example with the hermetically sealed cooling expander of erect-type metal that is installed on the transformer, it comprises expansion joint 3,5 joint cooling joints 4, oil inlet pipe 2, flowline 8 and bolt 6, nut 7 in 2 joint end expansion joints, 1,4 joints.End expansion joint 1 is had the Long Circle metal cylinder 12 of outward flange by two ends, Long Circle corrugated plating 13 and Long Circle metallic plate 14 are formed, metal cylinder 12 is made by the thick A3 steel plate of 2mm, be processed with installing hole on its flange, be processed with fuel feed hole and oil outlet on the cylinder, the two ends internal diameter is R95mm, length L is 200mm, height is 24mm, metallic plate 14 is struck out by the thick A3 steel plate of 2mm, the two ends radius is R95mm, and length L is 200mm, and corrugated plating 13 is warded off tin steel plate by the thick stainless steel 1Gr18Ni9Ti of 0.3mm and made, the two ends radius is R105mm, length L is 200mm, and corrugated plating 13 is welded on the outward flange of metal cylinder 12, and metallic plate 14 is welded in the middle of metal cylinder 12 inner chambers.Middle expansion joint 3 has the Long Circle metal cylinder 12 of outward flange by two ends and the Long Circle corrugated plating 13 that is welded on its two end boss is formed, cooling joint 4 is Long Circle metal cylinders that two ends have outward flange, be processed with the installing hole consistent on its flange with metal cylinder 12, be processed with air admission hole and steam vent on its cylinder, the material of cooling joint 4, size is identical with metal cylinder 12.Expansion joint (comprising end expansion joint 1 and middle expansion joint 3) and cooling joint 4 are alternately, two ends are end expansion joint 1, and tighten up by bolt 6 and nut 7, make by steel pipe into and out of oil pipe 2,3, be installed in the upper and lower of expansion joint respectively, and be communicated with each expansion joint with the copper oil distributing pipe, link to each other with the oil pipe of oil tank of transformer upper and lower part respectively into and out of oil pipe flange 9,11, like this, the cooling expander has just replaced the original oil conservator of transformer, backplate (or guard shield) also is equipped with in the expansion joint top, prevents that rainwater from entering the cooling joint.
If in the transformer oil circuit, add oil-immersed pump, externally add fan electromotor, just formed the air-cooled cooling expander of forced oil-circulation.If in the cooling joint, feed cooling water, then constitute water cooling formula cooling expander, cooling effect is better, is applicable to high-power transformer.
Fig. 5～7th, the hermetically sealed cooling expander of horizontal type, its structure and erect-type basic identical, just the installation site of oil inlet pipe and flowline is different.
The shape of the metal cylinder of the metal cylinder 12 of expansion joint, corrugated plating 13, metallic plate 14 and cooling joint 4 also can be ellipse or round rectangle.
Claims (3)
1, a kind of hermetically sealed cooling expander that is used to be filled with the high voltage electric appliance of insulating oil, it is characterized in that comprising expansion joint, cooling joint 4, oil inlet pipe 2, flowline 8 and securing member, described expansion joint is end expansion joint 1 and middle expansion joint 3, end expansion joint 1 is by metal cylinder 12 and is fixed on the corrugated plating 13 at its two ends and the sealed cavity structure of the inflatable and contraction that metallic plate 14 constitutes, middle expansion joint 3 is the inflatable and sealed cavity structures of shrinking that are made of metal cylinder 12 and the corrugated plating 13 that is fixed on its two ends, described cooling joint 4 is the metal cylinders that have air inlet (water) hole and exhaust (water) hole, expansion joint and cooling joint 4 are alternately, two ends are end expansion joint 1, the middle part is middle expansion joint 3, and be fastenedly connected by bolt 6 and nut 7, oil inlet pipe 2 and flowline 8 are installed in the above and below of expansion joint respectively, and communicate with each expansion joint with oil distributing pipe.
2, hermetically sealed cooling expander according to claim 1 is characterized in that the metal cylinder 12 of expansion joint, corrugated plating 13, and the metal cylinder of metallic plate 14 and cooling joint 4 all is Long Circle or ellipse or round rectangle.
3, hermetically sealed cooling expander according to claim 1 is characterized in that oil inlet pipe 2 tops are equipped with oil level indication and pressure relief device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210624 CN2033939U (en) | 1988-06-06 | 1988-06-06 | Full sealing cold expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88210624 CN2033939U (en) | 1988-06-06 | 1988-06-06 | Full sealing cold expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033939U true CN2033939U (en) | 1989-03-08 |
Family
ID=4844111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88210624 Expired - Lifetime CN2033939U (en) | 1988-06-06 | 1988-06-06 | Full sealing cold expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033939U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845544A (en) * | 2010-05-22 | 2010-09-29 | 奉化市光亮热处理电炉有限公司 | Annealing furnace capable of preventing deformation of internal furnaces |
| CN104157405A (en) * | 2014-08-15 | 2014-11-19 | 徐健 | Forced oil circulation finned radiator of oil-immersed transformer |
| CN106057421A (en) * | 2016-07-19 | 2016-10-26 | 山东五岳电器有限公司 | Device for compensating pressure of transformer cooling oil liquid on basis of effect |
-
1988
- 1988-06-06 CN CN 88210624 patent/CN2033939U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845544A (en) * | 2010-05-22 | 2010-09-29 | 奉化市光亮热处理电炉有限公司 | Annealing furnace capable of preventing deformation of internal furnaces |
| CN104157405A (en) * | 2014-08-15 | 2014-11-19 | 徐健 | Forced oil circulation finned radiator of oil-immersed transformer |
| CN106057421A (en) * | 2016-07-19 | 2016-10-26 | 山东五岳电器有限公司 | Device for compensating pressure of transformer cooling oil liquid on basis of effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |