CN100416721C - Debubbling and drying apparatus for dipping insulative media of power capacitors - Google Patents
Debubbling and drying apparatus for dipping insulative media of power capacitors Download PDFInfo
- Publication number
- CN100416721C CN100416721C CNB031289339A CN03128933A CN100416721C CN 100416721 C CN100416721 C CN 100416721C CN B031289339 A CNB031289339 A CN B031289339A CN 03128933 A CN03128933 A CN 03128933A CN 100416721 C CN100416721 C CN 100416721C
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- casing
- emulsion
- defoaming
- polybutene
- dielectric
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Abstract
The present invention relates to an insulating medium for an electric power capacitor in an electric power system and a defoaming drier used when the insulating medium is immersed. The insulating medium adopts emulsion of polyisobutylene or polybutene with the average molecular weight of 600 to 2400. Before the emulsion of polyisobutylene is filled for immersion, the defoaming drier is used for pretreatment. The defoaming drier comprises a box body 11, a feed pipe 3, a discharge pipe 4, an umbrella-shaped defoaming mechanism 5 which is positioned in the box body 11 and is aligned with the feed pipe 3, a vacuum pumping pipe 10 of the box body 11, and a heating source positioned in a distance sleeve 7 of the box body. The heating source can be hot water, steam or an electric heater, and the temperature of the heating source is from 55 to 85 DEG C. The emulsion of polybutene or polyisobutylene has the advantages of chemical resistant stability, high temperature and low temperature resistant property, favorable electrical property, favorable insulating property, favorable water resistant property, favorable steam resistant property, no toxicity, no smell and rapid heat radiation, and the temperature of a using environment is from-50 to 85 DEG C. Due to the adoption of the defoaming drier, the purity of the emulsion of polybutene or polyisobutylene is also raised, the phenomena of corrosion and expansion of an electric power capacitor can be prevented, and the heat stability and the service life of the electric power capacitor can be improved and extended.
Description
Technical field
The making of the power capacitor that the present invention relates to use in the electric power system, the deaeration drying device that adopts when specifically being meant a kind of dielectric dipping of power capacitor.
Background technology
Power capacitor is a kind of high power capacitor, usually with insulating paper as dielectric, with aluminium foil or other metal formings, roll as electrode as metallized polypropylene film and to form, and be immersed in the dielectric.Power capacitor is widely used in electric power system and the High-Voltage Experimentation device, and effect is to improve the electric power system power factor, reduces the power loss of transmission line, improves the stability of electric power system.
The self-healing low-voltage The parallel power condenser that developed recently gets up is that the polypropylene screen that single face with electrician's level is coated with layer of metal film is an electrode, is immersed in different types of dielectric, is made into power capacitor.The dipping that is adopted has paraffin, mineral oil, silicone oil, vegetable oil, resin, sulfur hexafluoride gas etc. with dielectric, and the most outstanding shortcoming of these dielectrics is that radiating effect is undesirable, influences the stability of power capacitor work when working under the hot environment.
Summary of the invention
The deaeration drying device that adopts when the objective of the invention is to design the varnished insulation dielectric soak of the power capacitor that a kind of excellent performance is provided.
In order to improve the job stability of power capacitor, select the polymer of good heat dissipation effect to make the filling dielectric of dipping usefulness, specifically be that to select mean molecule quantity for use be 600～2400 polybutene or polyisobutene emulsion.
For the weatherability, particularly heat-resisting quantity of the polybutene emulsion that improves filling, do not adopt polybutene or the direct filling of polyisobutene emulsion are poured into the method for capacitor casing dipping, and when dipping, adopt a kind of deaeration drying device to deal with earlier.Described deaeration drying device comprises casing, and the feed pipe of casing top and the discharge nozzle of bottom are positioned at box house and aim at the umbrella shape defoaming mechanism of feed pipe, and the vacuum-pumping tube of connect box is positioned at all parts of thermal source of casing spacer.In order to observe the deaeration dry run in the case, also be provided with transparent visor on the casing.Between defoaming mechanism and casing by the bearing support support fixation.
The environment for use temperature high temperature of concerned countries standard code power capacitor is 40～55 ℃, but the summer in the outdoor reactive-load compensator, high ambient temperature often reached more than 65 ℃, so in the deaeration dry run, molecular weight and power capacitor according to polybutene or polyisobutene emulsion use the difference of region, the heat source temperature that is adopted is controlled at 55～85 ℃, with the end product quality behind the assurance dipping, prolong the useful life of power capacitor.Thermal source can be hot water, steam or electric heater.
Advantage of the present invention is that the polybutene or the polyisobutene emulsion filling dielectric that are adopted have good chemical stability, high temperature resistant under long-time ultraviolet radiation and cryogenic property is all very good, the environment for use temperature range is-50～85 ℃, electrical property, insulation property, resistance to water, anti-steam etc. all meet the requirements, nontoxic, odorless, odorlessness, pollution-free, rapid heat dissipation.
The negative pressure deaeration drying device that adopts can make the polybutene of filling or polyisobutene emulsion improve purity, internal corrosion and the swelling of avoiding minor amount of water molecule vaporization wherein to cause, improve the local discharging level of element, improve the thermal stability and the useful life of power capacitor, serviceability temperature can reach 85 ℃.
Description of drawings
The deaeration drying device schematic diagram that accompanying drawing adopts when flooding for dielectric of the present invention, thermal source used among the figure is a hot water, among the figure:
1, add hot water inlet 2, add hot water outlet 3, charging aperture 4, discharging opening
5, umbrella shape defoaming mechanism 6, bearing support 7, casing spacer 8, visor
9, polybutene emulsion 10, vacuum-pumping tube 11, casing
Embodiment
Embodiment 1
The electrician's grade polypropylene film that is coated with the layer of aluminum film with single face is an electrode material, is that the varnished insulation medium is made power capacitor with the polybutene emulsion of mean molecule quantity ≈ 1000.The filling can in the power capacitor housing of the rolling of electrode, dielectric, operation such as routine such as seal, vacuumize; Just since contained trace water of polybutene emulsion and bubble be difficult in and seal the back and remove with the method that vacuumizes, therefore handle on negative pressure deaeration drying device provided by the present invention before polybutene emulsion filling can, the desiccant hot water temperature of deaeration is controlled at 85 ℃ in advance.
Embodiment 2
As shown in drawings, the casing 11 of deaeration drying device provided by the invention and umbrella shape defoaming mechanism 5 are made by stainless steel, and casing 11 is established spacer 7, can lead to hot water or steam, also can adopt electric heating.The umbrella shape defoaming mechanism is fixing with the inwall welding of casing 11 with 4 bearing supports 6.The outside of casing 11 can be coated with heat-insulating material.
The polyisobutene emulsion property is similar to the polybutene emulsion, and embodiment slightly.
Claims (4)
1. the deaeration drying device that adopts when the dielectric of electric capacitor floods, described dielectric is that a kind of mean molecule quantity is 600～2400 polybutene or polyisobutene emulsion, it is characterized in that described deaeration drying cartridge is equipped with the discharge nozzle (4) of the feed pipe (3) of a casing (11), casing (11) top and bottom, is positioned at umbrella shape defoaming mechanism (5), the vacuum-pumping tube (10) of connect box (11) and the thermal source that is positioned at casing spacer (7) of the inner and aligning feed pipe (3) of casing (11); Between umbrella shape defoaming mechanism (5) and casing (11) by bracing frame (6) support fixation.
2. the deaeration drying device that adopts when the dielectric of power capacitor as claimed in claim 1 floods is characterized in that described casing (11) is provided with visor (8).
3. the deaeration drying device that adopts when the dielectric of power capacitor as claimed in claim 1 floods is characterized in that described thermal source can be hot water, steam or electric heater.
4. the deaeration drying device that adopts during as the dielectric of claim 1 or 3 described power capacitors dipping, the temperature that it is characterized in that described thermal source is 55～85 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031289339A CN100416721C (en) | 2003-05-30 | 2003-05-30 | Debubbling and drying apparatus for dipping insulative media of power capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031289339A CN100416721C (en) | 2003-05-30 | 2003-05-30 | Debubbling and drying apparatus for dipping insulative media of power capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1553461A CN1553461A (en) | 2004-12-08 |
| CN100416721C true CN100416721C (en) | 2008-09-03 |
Family
ID=34322306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031289339A Expired - Fee Related CN100416721C (en) | 2003-05-30 | 2003-05-30 | Debubbling and drying apparatus for dipping insulative media of power capacitors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100416721C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122488B (en) * | 2011-11-18 | 2015-09-23 | 徐茂航 | A kind of Minitype demonomerization tower |
| CN102496460B (en) * | 2011-11-29 | 2013-05-29 | 安徽赛福电子有限公司 | Injection method for injecting polyisobutene impregnant into metallized polypropylene film capacitor |
| CN104795257B (en) * | 2012-08-28 | 2018-04-06 | 苏州工业园区和顺电气股份有限公司 | The impregnation method of power capacitor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996505A (en) * | 1974-08-05 | 1976-12-07 | Mcgraw-Edison Company | Capacitor with liquid polybutene dielectric |
| US4656558A (en) * | 1985-08-02 | 1987-04-07 | Aerovox Incorporated | Electrical capacitor |
| US6347033B1 (en) * | 1998-05-26 | 2002-02-12 | General Electric Company | Thixotropic dielectric fluid for capacitors |
-
2003
- 2003-05-30 CN CNB031289339A patent/CN100416721C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996505A (en) * | 1974-08-05 | 1976-12-07 | Mcgraw-Edison Company | Capacitor with liquid polybutene dielectric |
| US4656558A (en) * | 1985-08-02 | 1987-04-07 | Aerovox Incorporated | Electrical capacitor |
| US6347033B1 (en) * | 1998-05-26 | 2002-02-12 | General Electric Company | Thixotropic dielectric fluid for capacitors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1553461A (en) | 2004-12-08 |
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Addressee: Yang Jinbao Document name: Notification of Termination of Patent Right |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20090630 |