CN209311600U - High voltage electric field environmental laboratory experimental rig - Google Patents
High voltage electric field environmental laboratory experimental rig Download PDFInfo
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- CN209311600U CN209311600U CN201822093152.7U CN201822093152U CN209311600U CN 209311600 U CN209311600 U CN 209311600U CN 201822093152 U CN201822093152 U CN 201822093152U CN 209311600 U CN209311600 U CN 209311600U
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Abstract
The utility model proposes a kind of high voltage electric field environmental laboratory experimental rig, device includes: geomery identical discoid top crown and bottom crown；The disk of the top crown and bottom crown edge is above each provided with a grading ring；The top crown and bottom crown are tried to get to the heart of a matter parallel and are oppositely arranged；The top crown connects HT testing transformer；The bottom crown ground connection.It is simple to manufacture, is low in cost, takes full advantage of the ordinary elements that can be touched in power test, realizes purpose of design and has superior performance, provides uniform field distribution and suitable test platform.The present embodiment device produces sufficiently uniform electric field between top crown and bottom crown, and electric field strength can be adjusted flexibly by the spacing of control top crown and bottom crown；The chassis of bottom crown provides sufficiently wide operating space as test platform, can be easy to carry out various test operations.
Description
Technical field
The utility model belongs to power test field more particularly to a kind of high voltage electric field environmental laboratory experimental rig.
Background technique
Under high temperature coastal environments, key metal material corrosion is extremely serious in electric system, causes maintenance cost very high.
Current research perhaps concentrates on influence or concentration electric field/magnetic field of the corrosive environment to metal material and uses metal material
The influence of behavior, and electric system metal material is served in strong alternating electric field atmospheric environment, electromagnetic field and use environment are to metal
The influence of the usage behavior of material is at present also in the blank of research.Therefore design it is a kind of it is simple and easy to do, safe and reliable, be applied to
Influence of the corrosion device of high electric field for analog study electric field and corrosive medium to metal material military service behavior is particularly significant.
Utility model content
The main purpose of scheme provided by the utility model is to provide a kind of safe and reliable, Yi Shixian device, can
To be adjusted flexibly and control electric field strength, and the implementation of various types corrosion test can be cooperated, be research electric field strength to gold
The basic practice processes of the offer of the influence of material corrosion behavior are provided.
The utility model specifically uses following technical scheme:
A kind of high voltage electric field environmental laboratory experimental rig characterized by comprising geomery is identical discoid
Top crown and bottom crown；The disk of the top crown and bottom crown edge is above each provided with a grading ring；The top crown and lower pole
Plate is tried to get to the heart of a matter parallel and is oppositely arranged；The top crown connects HT testing transformer；The bottom crown ground connection.
Preferably, the top crown is suspended on insulating support by more insulating cords, and is tried to get to the heart of a matter downward, and pass through level
Bubble leveling；The bottom crown is placed on level board, and chassis is upward.
Preferably, the insulating cord is dustless asbestos twisted rope.
Preferably, the insulating support is barricaded as by insulator.
Preferably, the material of the top crown and bottom crown is stainless steel；The grading ring is surface by copper foil or tinfoil paper
The ring tube of covering.
Preferably, the top crown and bottom crown are tried to get to the heart of a matter as circular flat, and the edge tried to get to the heart of a matter is transitioned into disk with rounded corner
Wall.
Preferably, the top crown connects HT testing transformer by steel pipe, is provided with protective resistance on the steel pipe,
The both ends of the protective resistance are provided with grading ring.
Preferably, the protective resistance is water resistance, resistance value 80K Ω.
Preferably, the top crown and bottom crown have two groups, and two top crowns connect and connect high-potting transformation
Device.
The device design scheme that the utility model and its preferred embodiment provide is simple to manufacture, is low in cost, takes full advantage of
The ordinary elements that can be touched in power test realize purpose of design and have superior performance, provide uniform
Field distribution and suitable test platform.The present embodiment device produces sufficiently uniform electricity between top crown and bottom crown
, and electric field strength can be adjusted flexibly by the spacing of control top crown and bottom crown；The chassis of bottom crown is flat as test
Platform provides sufficiently wide operating space, can be easy to carry out various test operations；Simplified due to Integrated test facility structure and
Small volume, can also be mating with other equipment, simulated environment needed for flexibly building various tests.Utility model device is also
By using the mode at the tips such as grading ring bucking electrode disk, conduit and protective resistance connecting part, keep device more stable
Operation, and safety is greatly improved, utility model device still is able to stablize in the electric field environment of 750KV/m intensity, pacify
Row for the national games.
Detailed description of the invention
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model:
Fig. 1 is the utility model embodiment overall structure stereoscopic schematic diagram；
Fig. 2 is the utility model embodiment overall structure schematic side view；
Fig. 3 is the utility model embodiment protective resistance set-up mode schematic diagram；
Fig. 4 is Potential Distributing simulation result schematic diagram under the utility model embodiment use state；
In figure: 1- top crown；2- bottom crown；3- grading ring (is used for upper bottom crown)；The dustless asbestos twisted rope of 4-；5- steel pipe；
6- protective resistance；61- grading ring (is used for protective resistance)；7- conducting wire.
Specific embodiment
For the feature and advantage of this patent can be clearer and more comprehensible, special embodiment below is described in detail below:
As shown in Figure 1 and Figure 2, the present embodiment device includes: geomery identical discoid top crown 1 and bottom crown
2, top crown 1 and bottom crown 2 are tried to get to the heart of a matter as circular flat, and the edge tried to get to the heart of a matter is transitioned into disk (side) wall with rounded corner；1 He of top crown
The material of bottom crown 2 is stainless steel.
The disk of top crown 1 and bottom crown 2 is surface by copper foil or tinfoil paper along a grading ring 3, grading ring 3 is above each provided with
The ring tube of covering；Top crown 1 and bottom crown 2 are tried to get to the heart of a matter parallel and are oppositely arranged.Wherein, top crown 1 (is at least needed by more
To be in three of triangular symmetrical, four are used in the present embodiment) dustless asbestos twisted rope 4 is suspended on the insulating support that insulator is barricaded as
On, and try to get to the heart of a matter downward, it is leveled by high-precision air level；Bottom crown 2 is placed on level board, to keep horizontality, and bottom
Disk is upward.
As shown in Figure 1, Figure 3, top crown 1 connects protective resistance 6 by steel pipe 5, and protective resistance 6 can also be led to by conducting wire 7(
Cross steel pipe 5) connection HT testing transformer (high pressure generator), the both ends of protective resistance 6 are also equipped with grading ring 61, bottom crown
2 ground connection.
The safe design of test under high pressure, experimental provision is particularly important, and there are subtle leakage electricity at high pressure
Stream can all make control system the electric current of 10-20A or more occur, easily cause safety accident in During Process of Long-term Operation.In this implementation
In the design that example provides, due to the Pan Kou of stainless steel disk, rust steel disk and 7 connecting part of conducting wire and protective resistance 6 and conducting wire 7
Situations such as connecting part is inevitably present tip in the case where lacking retrofit, and tip is easy to produce leakage current.
And the present embodiment shields at tip creatively by increasing grading ring 3 in stainless steel disc mouth, it is ensured that experiment safety fortune
Row.Grading ring 3 shields the tip in experimental provision, improves the safety of device.
In the present embodiment, the insulating cord for hanging top crown 1 can use dustless asbestos twisted rope 4.It is turned round by dustless asbestos
Rope 4 hangs on top crown 1 on overhead support, since the relative dielectric constant of air between upper bottom crown is 1.000585, adopts
It is not easy electric field with suspension design breakdown.Top crown 1 can increase higher voltage at this time, without breakdown.And pass through
Insulating cord adjusts the height of top crown 1, can lower economize on electricity field intensity not changing voltage condition, not only facilitate but also quick.
Protective resistance 6 uses high value water resistance, and solution is deionized water in resistance.Resistance value is about 80K Ω.
Each group of top crown 1 is connected by being wrapped with the heavy gauge wire of balance pipe, also can be reduced the presence at tip.It is more direct
Ground, the present embodiment replace conducting wire as connecting material using steel pipe 5, and since conducting wire is very thin, the diameter of itself is with regard to very little, just at last
A kind of tip, therefore steel pipe 5 is used to have more safety.
The Potential Distributing of the present embodiment device is emulated by simulation software COMSOL Multiphysics 5.2,
For simulation result sectional drawing as shown in figure 3, simulation model uses bottom crown for 100mm, top crown 1 is 40KV, and bottom crown 2 connects
Ground.It can be seen that upper bottom crown intermediate region is essentially uniform electric field distribution.
By adjusting upper bottom crown distance, change external transformer, so that it may obtain different high pressures.
Example 1: being barricaded as bracket using insulator, is hung top crown 1 by dustless asbestos twisted rope 4, and adjust top crown 1
Highly, making bottom crown distance is 8cm and 4cm, and adjusts level with air level.Light-duty transformer is adjusted to virtual value and is
16KV makes electrode plate generate alternating electric field.Electric field strength virtual value is 200KV/m and 400KV/m.Continual and steady operation 14*24
Hour, phenomenon without exception.
Example 2: being barricaded as bracket using insulator, is hung top crown 1 by dustless asbestos twisted rope 4, and adjust top crown 1
Highly, making bottom crown distance is 10cm and 5cm, and adjusts level with air level.Light-duty transformer is adjusted to virtual value and is
30KV makes electrode plate generate alternating electric field.Electric field strength virtual value is 300KV/m and 600KV/m.Continual and steady operation 10*24
Hour, phenomenon without exception.
Example 3: being barricaded as bracket using insulator, is hung top crown 1 by dustless asbestos twisted rope 4, and adjust top crown 1
Highly, making bottom crown distance is 8cm and 5cm, and adjusts level with air level.Light-duty transformer is adjusted to virtual value and is
30KV makes electrode plate generate alternating electric field.Electric field strength virtual value is 375KV/m and 750KV/m.Continual and steady operation 7*24 is small
When, phenomenon without exception.
On this basis, pass through the liquid on experimental material surface on change pole plate, so that it may simulate different corrosive environments.
Top crown 1 and bottom crown 2 can also be had to two groups simultaneously, two top crowns 1 connect and connect HT testing transformer, to obtain
Identical high input voltage, and make the spacing difference of top crown 1 and bottom crown 2 to obtain different Potential Distributings, control group each other,
It can carry out corresponding check experiment.
Thus the basic test method constructed mainly comprises the steps that
Step S1: will corrode the edge seal of sample by insulating cement, and corrosion sample is placed in trying to get to the heart of a matter for bottom crown 2
On；
Step S2: corrosive liquid quantitatively is added dropwise to the upper surface of corrosion sample；
Step S3: being powered to top crown 1, observes and records the corrosion condition of corrosion sample.
In a specific test examples:
Using specification is 5052 aluminium alloy of 20mm × 20mm × 2mm as corrosion sample, specimen enclosure is got up, only
20mm × 20mm surface exposure, which comes out, is used as corrosion area.Light-duty transformer voltage is adjusted to 20KV, and upper bottom crown spacing is adjusted to
100mm and 50mm.Two electric field strong and weaks are respectively 200KV/m and 400KV/m at this time.2 × 8 samples are respectively placed in two samples
Platform is corroded.Corrosive liquid is accurately added dropwise by 100 μ L liquid-transfering guns, and makes corrosive liquid uniform fold.A cycle is followed within 12 hours
Ring.After corrosion 30 days, it is scanned testing electronic microscope.
The results show that aluminum alloy surface has a small number of corrosion oxidation products, matrix surface under 0KV/m electric field strength
Do not occur slight crack.Under 200KV/m electric field strength, there is finer and closely woven corrosion oxidation product in surface, and surface many occurs and splits
Trace.Under 400KV/m electric field strength, aluminum alloy surface has already appeared pit, and partial region shows cellular.It can be seen that in electric field
Condition has facilitation to the corrosion of aluminium alloy.
This patent is not limited to above-mentioned preferred forms, anyone can obtain other under the enlightenment of this patent
Various forms of high voltage electric field environmental laboratory experimental rigs, all equivalent changes done according to present utility model application the scope of the patents
With modification, it should all belong to the covering scope of this patent.
Claims (9)
1. a kind of high voltage electric field environmental laboratory experimental rig characterized by comprising geomery is identical discoid upper
Pole plate and bottom crown；The disk of the top crown and bottom crown edge is above each provided with a grading ring；The top crown and bottom crown
Try to get to the heart of a matter parallel and be oppositely arranged；The top crown connects HT testing transformer；The bottom crown ground connection.
2. high voltage electric field environmental laboratory experimental rig according to claim 1, it is characterised in that: the top crown passes through
More insulating cords are suspended on insulating support, and are tried to get to the heart of a matter downward, and are leveled by air level；The bottom crown is placed on level board
On, and chassis is upward.
3. high voltage electric field environmental laboratory experimental rig according to claim 2, it is characterised in that: the insulating cord is nothing
Dirt asbestos twisted rope.
4. high voltage electric field environmental laboratory experimental rig according to claim 2, it is characterised in that: the insulating support by
Insulator is barricaded as.
5. high voltage electric field environmental laboratory experimental rig according to claim 1, it is characterised in that: the top crown is under
The material of pole plate is stainless steel；The grading ring is the ring tube that surface is covered by copper foil or tinfoil paper.
6. high voltage electric field environmental laboratory experimental rig according to claim 1, it is characterised in that: the top crown is under
Pole plate is tried to get to the heart of a matter as circular flat, and the edge tried to get to the heart of a matter is transitioned into Pan Bi with rounded corner.
7. high voltage electric field environmental laboratory experimental rig according to claim 1, it is characterised in that: the top crown passes through
Steel pipe connects HT testing transformer, is provided with protective resistance on the steel pipe, the both ends of the protective resistance, which are provided with, presses
Ring.
8. high voltage electric field environmental laboratory experimental rig according to claim 7, it is characterised in that: the protective resistance is
Water resistance, resistance value 80K Ω.
9. high voltage electric field environmental laboratory experimental rig according to claim 1, it is characterised in that: the top crown is under
Pole plate has two groups, and two top crowns connect and connect HT testing transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093152.7U CN209311600U (en) | 2018-12-13 | 2018-12-13 | High voltage electric field environmental laboratory experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093152.7U CN209311600U (en) | 2018-12-13 | 2018-12-13 | High voltage electric field environmental laboratory experimental rig |
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| CN209311600U true CN209311600U (en) | 2019-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406914A (en) * | 2018-12-13 | 2019-03-01 | 国网福建省电力有限公司 | High voltage electric field environmental laboratory experimental rig and method |
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2018
- 2018-12-13 CN CN201822093152.7U patent/CN209311600U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406914A (en) * | 2018-12-13 | 2019-03-01 | 国网福建省电力有限公司 | High voltage electric field environmental laboratory experimental rig and method |
| CN109406914B (en) * | 2018-12-13 | 2024-02-09 | 国网福建省电力有限公司 | Laboratory test device and method for high-voltage electric field environment |
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