CN207395972U - A kind of oil tank of transformer leakage testing device - Google Patents
A kind of oil tank of transformer leakage testing device Download PDFInfo
- Publication number
- CN207395972U CN207395972U CN201721332698.2U CN201721332698U CN207395972U CN 207395972 U CN207395972 U CN 207395972U CN 201721332698 U CN201721332698 U CN 201721332698U CN 207395972 U CN207395972 U CN 207395972U
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- Prior art keywords
- transformer
- oil tank
- testing device
- oil
- sealing plate
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- 238000012360 testing method Methods 0.000 title claims abstract description 78
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 230000007704 transition Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002828 fuel tank Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 238000001764 infiltration Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model is related to a kind of oil tank of transformer leakage testing device, added cost is manufactured caused by solve the problems, such as to need to be equipped with various sizes of sealing plate in the prior art.Leakage testing device includes testing stand, testing stand is equipped with bottom-up for oil tank of transformer, the opening down sealing plate being placed on above, leakage testing device further includes the appliance stand above testing stand, described device stent is equipped with for the pressing mechanism by the downward top pressure of oil tank of transformer on sealing plate, sealing is coated with to be passed through the medium inlet pipe of leak test medium by the opening of oil tank of transformer on the sealing plate, leakage testing device further includes to be connected with the oil sample valve close to bottom end in oil tank of transformer for the discharge-channel of the air in oil tank of transformer and the discharge of leak test medium, only need to set the sealing plate of large-size that sealing to the oil tank of transformer of different size can be realized, the sealing plate of different size need not be equipped with, reduce manufacture cost, improve leak test efficiency.
Description
Technical field
The utility model is related to a kind of oil tank of transformer leakage testing devices.
Background technology
Oil tank of transformer is welding structural element in power industry, and weld shape is complicated, length is larger.Oil tank of transformer exists
Inside contains transformer oil during use, therefore, after the completion of Product jointing, is leaked weak spot and all excluded, ensure to become
Depressor fuel tank welding quality, so that transformer safety, reliability service.Oil tank of transformer generally includes the babinet with opening,
The smaller oil sample valve in aperture is offered on one end of the close bottom of babinet, can periodically take oil sample, detects transformer oil
Performance.
Pressure testing is generally using the modes such as air pressure, hydraulic pressure or aqueous vapor cooperation leak test, pressure testing after oil tank of transformer welding at present
Principle is all that mating sealing plate, plug or case lid are sealingly mounted to the openend end of oil tank of transformer with fasteners such as bolts
At mouthful, then inflate or water pressurization is added to search leak source.But due to oil tank of transformer specification up to hundreds of, examining
The fasteners fit sealings such as different sealing plate blending bolts are needed replacing in journey, the average fit sealing time is about 30min, this
Pressure testing time length, complex process, cumbersome is resulted in, influences production efficiency and required sealing plate type and quantity
It is more, increase manufacture cost.
Utility model content
The purpose of this utility model is to provide a kind of oil tank of transformer leakage testing device, to solve to need to match somebody with somebody in the prior art
The problem of added cost is manufactured caused by for various sizes of sealing plate.
To achieve the above object, the technical solution of the utility model oil tank of transformer leakage testing device is：A kind of transformer oil
Case leakage testing device, including testing stand, testing stand is equipped with for oil tank of transformer is bottom-up, opening down above close of being placed on
Sealing plate, leakage testing device further include the appliance stand above testing stand, and described device stent is equipped with for by transformer oil
Pressing mechanism of the downward top pressure of case on sealing plate, on the sealing plate sealing be coated with to be led to by the opening of oil tank of transformer
Enter the medium inlet pipe of leak test medium, leakage testing device is further included for the oil sample valve phase with close bottom end in oil tank of transformer
Even for the air in oil tank of transformer and the discharge-channel of leak test medium discharge.
The beneficial effects of the utility model are：Oil tank of transformer leakage testing device provided by the utility model includes testing stand,
Testing stand is equipped with sealing plate, and pressing mechanism is provided with above sealing plate, is sealed on sealing plate and is coated with medium inlet pipe.
In use, pressing mechanism by the opening buckling of oil tank of transformer on sealing plate, discharge-channel is connected to oil tank of transformer
On oil sample valve.Leak test medium is entered by medium inlet pipe in oil tank of transformer, and the air in oil tank of transformer is by oil tank of transformer
Oil sample valve discharge.By by the opening buckling of oil tank of transformer on sealing plate, on the one hand, only need set large-size
Sealing plate sealing to the oil tank of transformer of different size can be realized, the sealing plate of different size need not be equipped with, reduced
Manufacture cost, improves leak test efficiency；On the other hand, oil tank of transformer is hung upside down, oil sample valve can be placed in opening
Top.After oil sample valve to be placed in the top of opening leak test medium can be used to be entered by the opening of lower section, air and examination
Leak the leak testing process that medium is discharged by the oil sample valve of top.Since the latus rectum of oil sample valve is smaller, discharged using oil sample valve
Mode the air in oil tank of transformer can be discharged in time, and will be passed through in the leak test medium short time in oil tank of transformer,
Improve leak test efficiency.
Further, the pressing mechanism includes driving cylinder, and driving cylinder is including the cylinder body on appliance stand and downwards
Flexible output rod, the output rod be equipped with transition bracket, the transition bracket have for hang upside down oil tank of transformer and to
The top pressure end of lower top pressure oil tank of transformer.
Further, the upper end of the transition bracket is articulated on the output rod, and lower end is used for and transformer oil bottom
The chassis carrier setting bolt in portion is connected and forms the top pressure end.
The upper end of transition bracket connects with the chassis carrier setting bolt that output rod is hinged, lower end and oil tank of transformer bottom carry
It connects, realizes the effect not only hung upside down oil tank of transformer but also can pressurizeed to oil tank of transformer.
Further, movable sleeving is equipped with body in the horizontal direction on appliance stand, and the pressing mechanism is fixedly arranged on body.
Further, the discharge-channel is equipped with pressure indicator and the opening/shutting valve arranged on pressure indicator downstream.
Further, the testing stand includes table top, and the sealing plate is installed on table top, and the table top, which is equipped with, to be supplied
Two perforation that medium inlet pipe and discharge-channel pass through, the lower part of the testing stand are equipped with to contain the water tank of leak test medium,
The medium inlet pipe and discharge-channel are connected with water tank, are additionally provided with the leak test medium in water tank being pumped into change in water tank
Water pump in depressor fuel tank.
Sealing plate is located at the top of table top and water tank is arranged on to the lower section of table top, sealing plate and water tank is kept apart, together
When, medium inlet pipe and discharge-channel are connected with water tank, realize the recycling of leak test medium.
Further, testing stand includes the supporting leg being arranged in water tank and the table top being supported on supporting leg, the table top
Circumferential edge and water tank top circumferential edge between have for leak test medium flow into water tank in gap.
There is gap between the circumferential edge of table top and tank top circumferential edge, after the completion of leak test, by transformer
Fuel tank lift-off sealing plate, remaining leak test medium avoids leak test medium by flowing into water tank in the gap in oil tank of transformer
Waste.
Description of the drawings
Fig. 1 is the front view of the utility model oil tank of transformer leakage testing device embodiment；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the left view of Fig. 1.
Specific embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of the oil tank of transformer leakage testing device of the utility model, as shown in Figure 1 to Figure 3, the present embodiment with
It is illustrated exemplified by the hydraulic pressure leak test of oil immersed type ripple oil tank of transformer in the range of realization capacity 80KVA~800KVA.
Leakage testing device includes the gantry of the gantry upright post 1 and bridge joint of relative spacing arrangement between two gantry upright posts 1
Crossbeam 2, gantry beam 2 and two gantry upright posts 1 have been formed by welding portal frame.Walking mechanism is provided on gantry beam,
Walking mechanism can be along the extending direction of gantry beam（Left and right directions i.e. shown in FIG. 1）Walking.In the present embodiment, walking mechanism
To be set in the body 3 on gantry beam.Stretch oil cylinder 4 is installed on body 3, the cylinder body of stretch oil cylinder 4 is fixed on body 3
On, it is fixed with link 5 on the output rod of stretch oil cylinder 4, in the present embodiment, link 5 is the suspension of triangle.Triangle
5 upper end of link is connected by hinge shaft with the output rod of stretch oil cylinder 4, on the chassis bearing of lower end and 6 bottom of oil tank of transformer
Bolt hole carry out bolt and be connected, realize being fixedly linked for link 5 and oil tank of transformer 6.Link 5 can not only play
The effect of projecting oil tank of transformer 6, also can downward power transmission, the active force of 4 output rod of stretch oil cylinder is transferred to transformer oil
On case 6.By the stretching and retraction of 4 output rod of stretch oil cylinder link 5 can be driven to move up and down and by oil tank of transformer 6
Opening compresses are on sealing plate 15.
Multiple supporting legs 13 are provided with below the center of gantry beam, welds and supports in the top of multiple supporting legs 13
There is backing plate 14, the material of backing plate 14 is welding material, and supporting leg 13 can ensure the upward support force of backing plate when in use.
The top of backing plate 14 is bonded with sealing plate 15, and sealing plate 15 has sealing surface upward.In the center of backing plate 14 and sealing plate 15
The heart offers circular hole, and water inlet pipe 12 is coated in the circular hole of backing plate 14 and sealing plate 15, wherein, water inlet pipe 12 and backing plate 14
On circular hole hole wall between sealing is realized by way of full weld, realized between water inlet pipe 12 and sealing plate 15 by gluing close
Envelope.
Water tank 10 is placed in the lower section of backing plate 14, as seen from the figure, each supporting leg 13 is located in water tank 10, in water tank 10
Water pump 11 is inside placed with, water pump 11 is connected with water inlet pipe 12.Backing plate 14 is supported by supporting leg 13, wherein the circumferential edge of backing plate 14 with
There is gap, which can flow into for the clear water on sealing plate 15 in water tank 10 between the circumferential edge at 10 top of water tank.
Outlet pipe 8 is also equipped on backing plate 14, outlet pipe 8 is through backing plate 14 and extend into inside water tank 10, outlet pipe 8
The other end when in use with the oil sample valve of oil tank of transformer bottom sides install connect.Close to transformer oil on outlet pipe
The position of case 6 is equipped with water pressure gauge 7, is equipped with water valve 9 between water pressure gauge 7 and water tank 6 on outlet pipe 8.
Leakage testing device when in use, first hangs upside down oil tank of transformer 6 on link 5, and injection is suitable in advance in water tank
The clear water of amount ensures after filling water in oil tank of transformer that the water surface in water tank remains to flood water pump.Oil tank of transformer 6 is moved
To the top of sealing plate 15, start stretch oil cylinder 4, stretch out the output terminal of stretch oil cylinder 4 and oil tank of transformer is pressed on sealing
On plate 15, make the sealing of fuel tank opening tight.Afterwards, the water valve 9 of outlet pipe 8 is closed, starts water pump 11, by water inlet pipe 12 to change
The pressure value of water pressure gauge is observed in water filling in depressor fuel tank 6, appropriate to open when the pressure value of water pressure gauge reaches 15KPa-20KPa
Water valve 9 makes the stable water pressure in oil tank of transformer in detection pressure limit.Pressurize 20min-25min observes oil tank of transformer
Commissure whether there is infiltration phenomenon, if without infiltration phenomenon, then it is assumed that the qualified ne-leakage of oil tank of transformer sealing；If there is infiltration phenomenon,
Infiltration position then is marked with marking pen, after the water of fuel tank and drying is emptied, repair welding is carried out immediately, is repeated again after repair welding above-mentioned
Leak test step, until oil tank of transformer leak test is qualified.After leak test, the output rod retraction of stretch oil cylinder 4, by transformer oil
6 lift-off sealing plate 15 of case, clear water in oil tank of transformer 6 by the gap reflow tank 10 between backing plate 14 and water tank 10,
The recycling of clear water is realized, avoids wasting.
Oil tank of transformer leakage testing device needs to control the pressing force of stretch oil cylinder when in use, and pressing force is avoided to cause greatly very much
Sealing plate or transformer oil carton deformed moreover, the waterdrainage amount of the water pumping amount of water pump and outlet pipe needs to keep balance, avoid hydraulic pressure
It beats excessive influence test effect, while avoids hydraulic pressure is excessive from causing transformer oil carton deformed.
In the present embodiment, outlet of the oil sample valve in oil tank of transformer normal use as acquisition oil sample uses, aperture
It is smaller.The opening on oil tank of transformer and oil sample valve make use of to carry out Inlet and outlet water, by being progressively full of transformer from the bottom to top
The method of fuel tank can by the air in oil tank of transformer in time by being discharged in oil sample valve, meanwhile, clear water enters by opening,
It is discharged by oil sample valve, also increases the speed of clear water entrance, improve the efficiency of leak test.Oil tank of transformer is hung upside down and is also met
Above-mentioned requirement, and by setting general sealing plate and being compressed by stretch oil cylinder, can realize oil tank of transformer
The sealing of opening.
In the above embodiments, medium is clear water used by leak test is carried out to oil tank of transformer, in other embodiments,
Experiment medium used can be gas, at this time, it may be necessary to which water inlet pipe, outlet pipe, water pressure gauge to be changed to air inlet pipe, the outlet of adaptation
Pipe and air gauge, by being filled with gas into oil tank of transformer, can realize the air pressure leakage check of oil tank of transformer.Above-mentioned
In embodiment, water inlet pipe and air inlet pipe constitute medium inlet pipe, and outlet pipe and air outlet pipe constitute discharge-channel.Water pressure gauge is gentle
Pressure table constitutes pressure indicator.
In the present embodiment, stretch oil cylinder is driving cylinder, constitutes pressing mechanism, and link is transition frame, transition frame
Lower end connection oil tank of transformer and downwards top pressure and form top pressure end.
In the present embodiment, water valve is opening/shutting valve.On backing plate is that medium inlet pipe is worn for the circular hole that water inlet pipe passes through
Hole.
In the present embodiment, stretch oil cylinder is pressing mechanism, and in other embodiments, pressing mechanism can be other knots
Structure, such as using rack and pinion mechanism linear movement output and pressurize.
In the present embodiment, portal frame constitutes appliance stand.
Claims (7)
1. a kind of oil tank of transformer leakage testing device, it is characterised in that：Including testing stand, testing stand is equipped with for transformer oil bottom
Portion upward, the opening down sealing plate being placed on above, leakage testing device further includes the appliance stand above testing stand, described
Appliance stand is equipped with for the pressing mechanism by the downward top pressure of oil tank of transformer on sealing plate, is sealed and is worn on the sealing plate
Equipped with for being passed through the medium inlet pipe of leak test medium by the opening of oil tank of transformer, leakage testing device, which further includes, to be used for and transformer oil
Oil sample valve in case close to bottom end is connected for the discharge-channel of the air in oil tank of transformer and the discharge of leak test medium.
2. oil tank of transformer leakage testing device according to claim 1, it is characterised in that：The pressing mechanism includes driving
Cylinder, driving cylinder include the cylinder body being arranged on appliance stand and output rod flexible downwards, and the output rod is equipped with transition bracket,
The transition bracket has to hang upside down oil tank of transformer and downwards the top pressure end of top pressure oil tank of transformer.
3. oil tank of transformer leakage testing device according to claim 2, it is characterised in that：The upper end of the transition bracket is hinged
In on the output rod, lower end is used to the chassis carrier setting bolt of oil tank of transformer bottom be connected and form the top pressure end.
4. according to the oil tank of transformer leakage testing device described in claim 1 or 2 or 3, it is characterised in that：Along level on appliance stand
Direction movable sleeving is equipped with body, and the pressing mechanism is fixedly arranged on body.
5. oil tank of transformer leakage testing device according to claim 1, it is characterised in that：The discharge-channel is equipped with pressure
Dial gauge and the opening/shutting valve arranged on pressure indicator downstream.
6. oil tank of transformer leakage testing device according to claim 1, it is characterised in that：The testing stand includes table top, platform
The sealing plate is installed on face, the table top is equipped with two perforation passed through for medium inlet pipe and discharge-channel, described
The lower part of testing stand is equipped with to contain the water tank of leak test medium, and the medium inlet pipe and discharge-channel are connected with water tank, water
It is additionally provided with for the leak test medium in water tank to be pumped into the water pump in oil tank of transformer in case.
7. oil tank of transformer leakage testing device according to claim 6, it is characterised in that：Testing stand includes being arranged in water tank
Supporting leg and the table top being supported on supporting leg have between the circumferential edge of the table top and the top circumferential edge of water tank and supply
Leak test medium flows into the gap in water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332698.2U CN207395972U (en) | 2017-10-17 | 2017-10-17 | A kind of oil tank of transformer leakage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332698.2U CN207395972U (en) | 2017-10-17 | 2017-10-17 | A kind of oil tank of transformer leakage testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395972U true CN207395972U (en) | 2018-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721332698.2U Expired - Fee Related CN207395972U (en) | 2017-10-17 | 2017-10-17 | A kind of oil tank of transformer leakage testing device |
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| CN (1) | CN207395972U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956058A (en) * | 2018-09-27 | 2018-12-07 | 湖北迪耐斯通达排放处理系统有限公司 | A kind of preprocessor weld seam leakproofness detection system |
| CN109443649A (en) * | 2018-12-28 | 2019-03-08 | 常德国力变压器有限公司 | A kind of oil tank of transformer air-tightness detection device |
| CN109668689A (en) * | 2017-10-17 | 2019-04-23 | 河南森源重工有限公司 | A kind of oil tank of transformer leakage testing device and leak testing process |
| CN110726514A (en) * | 2019-11-01 | 2020-01-24 | 新昌灵思变压器科技有限公司 | Oil leakage detection device for transformer oil tank |
-
2017
- 2017-10-17 CN CN201721332698.2U patent/CN207395972U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668689A (en) * | 2017-10-17 | 2019-04-23 | 河南森源重工有限公司 | A kind of oil tank of transformer leakage testing device and leak testing process |
| CN108956058A (en) * | 2018-09-27 | 2018-12-07 | 湖北迪耐斯通达排放处理系统有限公司 | A kind of preprocessor weld seam leakproofness detection system |
| CN108956058B (en) * | 2018-09-27 | 2023-12-19 | 湖北迪耐斯通达排放处理系统有限公司 | Post-processor weld tightness detection system |
| CN109443649A (en) * | 2018-12-28 | 2019-03-08 | 常德国力变压器有限公司 | A kind of oil tank of transformer air-tightness detection device |
| CN110726514A (en) * | 2019-11-01 | 2020-01-24 | 新昌灵思变压器科技有限公司 | Oil leakage detection device for transformer oil tank |
| CN110726514B (en) * | 2019-11-01 | 2020-07-28 | 怀来斯达铭数据有限公司 | Oil leakage detection device for transformer oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 |