CN221040835U - Dry-type special high-voltage capacitor for deep sea oil field - Google Patents
Dry-type special high-voltage capacitor for deep sea oil field Download PDFInfo
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- CN221040835U CN221040835U CN202322482999.5U CN202322482999U CN221040835U CN 221040835 U CN221040835 U CN 221040835U CN 202322482999 U CN202322482999 U CN 202322482999U CN 221040835 U CN221040835 U CN 221040835U
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- deep sea
- voltage capacitor
- dry
- explosion
- special high
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- 239000003990 capacitor Substances 0.000 title claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 33
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 239000000741 silica gel Substances 0.000 claims description 15
- 229910002027 silica gel Inorganic materials 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000011889 copper foil Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 5
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 15
- 238000004880 explosion Methods 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 239000011104 metalized film Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model relates to the technical field of special high-voltage capacitors, and discloses a dry special high-voltage capacitor for a deep sea oilfield, which comprises a closed metal shell, wherein a core group is arranged in the shell, and a wiring terminal is arranged at the top of the shell. The dry-type special high-voltage capacitor can greatly reduce potential safety hazards of the capacitor working in extremely severe environments and prolong the service life of the capacitor.
Description
Technical Field
The utility model relates to the technical field of special high-voltage capacitors, in particular to a dry special high-voltage capacitor for a deep sea oil field.
Background
Electronic device capacitors find wide application in high voltage power transmission and distribution systems, and are one of the important components. The special surge absorbing alternating current capacitor of the metallized film polypropylene medium can be used in deep sea bottom drilling, and the dry special high voltage capacitor is required to have higher safety performance and longer service life due to long-time continuous operation on the sea bottom and severe operation environment, so that the accident rate and cost are reduced. In the prior art, the edges of the electrode plates of the capacitor are provided with thickened side layers to prevent the impact of distorted surge current. However, the defects of the dry special high-voltage capacitor in the prior art are obvious, namely, 1, the capacitor generates inrush current harmonic waves in the use process, the existing capacitor cannot effectively filter the inrush current harmonic waves, the service lives of the capacitor and the whole machine are negatively influenced, and even the capacitor is overloaded and burnt out; 2. in the prior art, the edge of the electrode plate of the capacitor is provided with an insulating edge layer consisting of a paper film and an oil gap to prevent the impact of distorted surge current, once the capacitor is cracked and tiny holes due to technological defects, air gap expansion under working condition operation or improper use, insulating oil leaks out, so that the electric performance of the capacitor is poor, ageing and breakdown are caused, the oil is inflammable, fire is easily caused, and more serious, when the capacitor fails, the oil is gasified under the action of an electric arc, explosion, oil injection and fire are easily caused, so that greater potential safety hazard is caused.
Disclosure of utility model
The utility model aims to solve the two technical problems in the background art and provides a dry special high-voltage capacitor for a deep sea oil field, which can greatly reduce potential safety hazards of the capacitor in extremely severe environments and prolong the service life of the capacitor.
In order to achieve the above purpose, the dry special high-voltage capacitor for the deep sea oil field comprises a closed metal shell, wherein a core group is arranged in the shell, a wiring terminal is arranged at the top of the shell, a hollow surge absorbing device is arranged between the core group and the wiring terminal, and the core group, the hollow surge absorbing device and the wiring terminal are arranged in series.
Preferably, the hollow surge absorbing device comprises a hollow vortex coil formed by vortex of a wire between the core group and the connecting terminal, an insulating sheath wrapped outside the hollow vortex coil, and a fixing ring for fixing the shape of the hollow vortex coil.
Preferably, the lead and the hollow vortex coil are both made of special fluorine-proof and salt mist-proof materials.
Preferably, an explosion-proof device is further arranged above the core group, a wiring end of the core group is connected with an output end of the explosion-proof device through a first copper strip, and a wiring terminal is connected with an input end of the explosion-proof device through a wire.
Preferably, the explosion-proof device comprises a base made of bakelite material and a copper foil arranged on the base, wherein the input end and the output end of the copper foil are respectively connected with a lead and a first copper strip, and a V-shaped notch is further arranged between the input end and the output end of the copper foil.
Preferably, the core group comprises three pairs of cores, and the wiring end of each pair of cores is connected with one wiring terminal in series; each pair of cores comprises two cores which are arranged up and down, the two cores in the same pair are connected in series through a second copper strip, the core above each pair is connected with the explosion-proof device through a first copper strip, the bottoms of the three pairs of cores are connected in parallel through a third copper strip, and each core is connected with a discharge resistor.
Preferably, the cores in the core group are rolled by adopting soil and T-shaped metallized safety films.
Preferably, the shell is made of nonmagnetic stainless steel and comprises a shell body and a cover arranged at the upper end of the shell body, and the terminal is arranged at the upper end of the cover.
Preferably, the shell is provided with at least two grooves surrounding the shell.
Preferably, the inner wall of the shell is provided with an insulating protection layer, and the insulating protection layer comprises a plurality of layers sequentially arranged from outside to inside: the anti-explosion device comprises insulating paper, a heat insulation net and a silica gel layer filled in a shell and used for wrapping the core group, wherein the top of the silica gel layer is lower than the anti-explosion device.
The utility model has the beneficial effects that: through the technical scheme, the hollow surge wave absorbing device can absorb and filter distortion waveforms and surge currents which are suddenly generated by a complex power system in a severe environment, so that the temperature rise is reduced, the capacitor can stably work for a long time, and the service lives of the capacitor and the whole machine are prolonged. In the capacitor work, when the electric quantity in the shell is increased sharply due to various complex reasons, the top of the shell is outwards bulged, and as the two ends of the lead are respectively connected with the wiring terminal and the explosion-proof device, the two ends are limited, the lead can be disconnected, so that the capacitor is powered off and does not work, and the safety of a power system is ensured. The dry-type special high-voltage capacitor is wound into a core by adopting the hollow surge absorbing device, the explosion-proof device and the soil and T-shaped metallized safety film, and is triple-protected, so that the potential safety hazard of the capacitor in extremely severe environment is greatly reduced, and the service life of the capacitor is prolonged.
Drawings
FIG. 1 is a schematic view of the external structure of a housing and a terminal in the present utility model;
FIG. 2 is a schematic perspective view of the internal structure of the housing of the present utility model;
FIG. 3 is a schematic front view of FIG. 2;
FIG. 4 is a left side schematic view of FIG. 2;
FIG. 5 is a schematic cross-sectional view of the outer shell and insulation shield of the present utility model (only the general outline of the core assembly is shown, specific details not shown);
FIG. 6 is a schematic view of the structure of the explosion-proof equipment of the present utility model;
FIG. 7 is a schematic diagram of the structure of a "soil, T" type metallized film in the present utility model.
Description of the reference numerals
1-Shell, 2-binding post, 3-explosion-proof device, 4-first copper strip, 5-wire, 6-surge absorbing device, 7-insulating protective layer, 8-base, 9-copper foil, 10-V notch, 11-core group, 12-second copper strip, 13-discharge resistor, 14-groove, 15-heat insulation net, 16-silica gel layer, 17-hollow vortex coil, 18-fixed ring, 19-insulating paper.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In the present utility model, unless otherwise indicated, the terms "upper, lower, top, bottom, far, near, side" and the like are used merely to denote the orientation of the term in a conventional use state or are commonly known to those skilled in the art, and should not be construed as limiting the term.
The utility model provides a dry special high-voltage capacitor for a deep sea oil field, which comprises a closed metal shell 1, wherein a core group 11 is arranged in the shell 1, the core group 11 is used for storing electric energy, a wiring terminal 2 is arranged at the top of the shell 1, and the wiring terminal 2 comprises a metal lead column and an insulating sleeve made of high-density nylon material and sleeved outside the metal lead column. A hollow surge absorbing device 6 is arranged between the core group 11 and the wiring terminal 2, and the core group 11, the hollow surge absorbing device 6 and the wiring terminal 2 are arranged in series. The explosion-proof device 3 is arranged above the core group 11, the wiring end of the core group 11 is connected with the output end of the explosion-proof device 3 through the first copper strip 4, the wiring terminal 2 is connected with the input end of the explosion-proof device 3 through the lead 5, the lead 5 is connected with the hollow surge absorbing device 6 in series, and the inner wall of the shell 1 is provided with the insulating protective layer 7.
In the working process of the dry special high-voltage capacitor, the hollow surge absorbing device 6 can absorb and filter distortion waveforms and surge generated by a complex power system in a severe environment, so that the temperature rise is reduced, the capacitor can work stably for a long time, and the service lives of the capacitor and the whole machine are prolonged.
As one embodiment of the present utility model, the hollow surge absorbing device 6 includes a hollow scroll coil 17 formed by swirling the lead wire 5 between the core group 11 and the connection terminal 2, an insulating sheath wrapping the hollow scroll coil 17, and a fixing ring 18 for fixing the shape of the hollow scroll coil 17. The hollow vortex coil 17 is favorable for cooling, the insulating leather can avoid contact between adjacent spirals in the hollow vortex coil 17, and the fixed ring 18 sleeve can be provided with a plurality of sleeves of coils to avoid loosening of the hollow vortex coil 17.
As an embodiment of the present utility model, the hollow scroll coil 17 is made of a special fluorine-proof salt mist-proof conductor material.
As an embodiment of the utility model, an explosion-proof device 3 is further arranged above the core group 11, a wiring terminal of the core group 11 is connected with an output end of the explosion-proof device 3 through a first copper strip 4, and a wiring terminal 2 is connected with an input end of the explosion-proof device 3 through a wire 5.
In the capacitor work, when the electric quantity in the shell 1 is increased sharply due to various complex reasons, the top of the shell 1 is outwards bulged, and as the two ends of the lead 5 are respectively connected with the wiring terminal 2 and the explosion-proof device 3, the lead 5 is disconnected due to the limitation of the two ends, so that the capacitor is powered off and does not work, and the safety of a power system is ensured.
As an embodiment of the present utility model, the explosion-proof device 3 includes a base 8 made of bakelite material and a copper foil 9 disposed on the base 8, wherein an input end and an output end of the copper foil 9 are respectively connected with the wire 5 and the first copper strip 4, and a V-shaped notch 10 is disposed between the input end and the output end of the copper foil 9.
The copper foil 9 is extremely thin, when the electric quantity in the shell 1 is increased sharply, and the top of the shell 1 is outwards bulged to pull the lead 5, the lead 5 can pull the copper foil 9, so that the copper foil 9 is torn from the V-shaped notch 10, and the purpose of power failure is achieved. The extra thin copper foil 9 provided with the V-shaped notch 10 is easier to tear compared with the lead 5, and can be rapidly powered off when the electric quantity is increased sharply, so that the safety of an electric power system is ensured.
As an implementation mode of the utility model, the core group 11 comprises three pairs of cores, the wiring end of each pair of cores is connected with one wiring terminal 2 in series, each pair of cores comprises two cores which are arranged up and down, the two cores in the same pair are connected in series through a second copper strip 12, the core positioned above in each pair is connected with the explosion-proof device 3 through a first copper strip 4, the bottoms of the three pairs of cores are connected in parallel through a third copper strip, each core is connected with a discharge resistor 13, and the discharge resistor 13 can be rapidly reduced after power failure, so that the safety guarantee is improved.
As an embodiment of the present utility model, the cores in the core group 11 are rolled up using a "earth, T" type metallized film. When discharging, the current can be output according to the sequence of earth and T, two stages of current limiting safety thresholds are arranged in the current limiting safety thresholds, and once abnormality occurs, the current limiting safety thresholds are broken, so that explosion is prevented.
As one embodiment of the present utility model, since it is used in a power system, a general metal generates magnetism under the action of an electric field, resulting in turbulence of a product current, generation of eddy current sound, and heating of a capacitor, which causes a reduction in life, each time it rises by one degree, the life is reduced by 10 hours. The housing 1 is thus made of nonmagnetic stainless steel, and comprises a housing body and a cover provided at the upper end of the housing body, and the connection terminal 2 is provided at the upper end of the cover.
As one embodiment of the utility model, at least two grooves 14 surrounding the shell are arranged outside the shell, and the capacitor is more safely and reliably prevented from slipping off when the capacitor is used on the sea floor with the depth of thousands of meters by binding and installing the capacitor on other parts through the two grooves 14.
As one embodiment of the present utility model, the inner wall of the housing 1 is provided with an insulation protection layer 7, and the insulation protection layer 7 comprises the following components sequentially arranged from outside to inside: the insulating paper 19, the heat insulation net 15 and the silica gel layer 16 filled in the shell 1 and used for wrapping the core group 11 are made of high-pressure silica gel, the silica gel layer 16 is made of high-pressure silica gel, the core group 11 is sealed after the silica gel is cooled, the silica gel layer 16 and the heat insulation net 15 replace paper films and oil gaps, the silica gel is made of solid insulating materials, the leakage risk is avoided, the silica gel is difficult to burn, and explosion, fire and pollution caused by silicone oil leakage are avoided. The top of the silica gel layer 16 is lower than the explosion-proof device 3, and on one hand, the silica gel layer can be prevented from interfering with the normal operation of the explosion-proof device.
The dry-type special high-voltage capacitor is formed by rolling the hollow surge absorbing device 6, the explosion-proof device 3 and the soil and T-shaped metallized film into a core, and is triple-protected, so that potential safety hazards of the capacitor working in extremely severe environments are greatly reduced, and the service life of the capacitor is prolonged.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a plurality of simple variants of the technical solution of the utility model are possible, including that the specific technical features are combined in any suitable way, for example, in order to avoid unnecessary repetition, the utility model is not described in any way. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (10)
1. The utility model provides a dry-type special type high-voltage capacitor for deep sea oil field, includes closed metal casing (1), the inside of casing (1) is provided with core group (11), binding post (2) are installed at the top of casing (1), its characterized in that, core group (11) with be provided with hollow sudden wave absorbing device (6) between binding post (2), core group (11) hollow sudden wave absorbing device (6) with binding post (2) establish ties and set up.
2. A dry special high-voltage capacitor for a deep sea oilfield according to claim 1, characterized in that the hollow surge absorbing device (6) comprises a hollow vortex coil (17) formed by vortex of a wire (5) between the core group (11) and the connection terminal (2), an insulating skin wrapped outside the hollow vortex coil (17), and a fixing ring (18) for fixing the shape of the hollow vortex coil (17).
3. A dry special high-voltage capacitor for a deep sea oilfield according to claim 2, wherein the lead (5) and the hollow vortex coil (17) are both made of special fluorine-proof and salt mist-proof materials.
4. The dry special high-voltage capacitor for the deep sea oil field according to claim 2, wherein an explosion-proof device (3) is further arranged above the core group (11), a wiring terminal of the core group (11) is connected with an output end of the explosion-proof device (3) through a first copper strip (4), and the wiring terminal (2) is connected with an input end of the explosion-proof device (3) through a wire (5).
5. The dry special high-voltage capacitor for the deep sea oil field according to claim 4, wherein the explosion-proof device (3) comprises a base (8) made of electric bakelite material and a copper foil (9) arranged on the base (8), an input end and an output end of the copper foil (9) are respectively connected with a lead (5) and the first copper strip (4), and a V-shaped notch (10) is further arranged between the input end and the output end of the copper foil (9).
6. A dry specialty high voltage capacitor for deep sea fields according to claim 1, characterized in that said core set (11) comprises three pairs of cores, the terminals of each pair of cores being connected in series with one terminal (2); each pair of cores comprises two cores which are arranged up and down, the two cores in the same pair are connected in series through a second copper strip (12), the core above in each pair is connected with the explosion-proof device (3) through a first copper strip (4), the bottoms of the three pairs of cores are connected in parallel through a third copper strip, and each core is connected with a discharge resistor (13).
7. A dry special high-voltage capacitor for deep sea oil fields according to claim 1 or 6, characterized in that the cores in the core group (11) are rolled by using a 'soil, T' -shaped metallized safety film.
8. The dry special high-voltage capacitor for the deep sea oil field according to claim 1, wherein the shell (1) is made of nonmagnetic stainless steel, comprises a shell body and a cover arranged at the upper end of the shell body, and the wiring terminal (2) is arranged at the upper end of the cover.
9. A dry special high-voltage capacitor for deep sea oil field according to claim 8, characterized in that the housing body is provided with at least two grooves (14) surrounding the housing body.
10. The dry special high-voltage capacitor for the deep sea oil field according to claim 4, wherein the inner wall of the shell (1) is provided with an insulating protection layer (7), and the insulating protection layer (7) comprises the following components sequentially arranged from outside to inside: the explosion-proof device comprises insulating paper (19), a heat insulation net (15) and a silica gel layer (16) filled in a shell (1) and used for wrapping the core group (11), wherein the top of the silica gel layer (16) is lower than the explosion-proof device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322482999.5U CN221040835U (en) | 2023-09-13 | 2023-09-13 | Dry-type special high-voltage capacitor for deep sea oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322482999.5U CN221040835U (en) | 2023-09-13 | 2023-09-13 | Dry-type special high-voltage capacitor for deep sea oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221040835U true CN221040835U (en) | 2024-05-28 |
Family
ID=91138715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322482999.5U Active CN221040835U (en) | 2023-09-13 | 2023-09-13 | Dry-type special high-voltage capacitor for deep sea oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221040835U (en) |
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2023
- 2023-09-13 CN CN202322482999.5U patent/CN221040835U/en active Active
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