CN204720314U - The power capacitor apparatus of internal pressure can be discharged - Google Patents
The power capacitor apparatus of internal pressure can be discharged Download PDFInfo
- Publication number
- CN204720314U CN204720314U CN201520404608.0U CN201520404608U CN204720314U CN 204720314 U CN204720314 U CN 204720314U CN 201520404608 U CN201520404608 U CN 201520404608U CN 204720314 U CN204720314 U CN 204720314U
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- hemispherical shell
- center
- capacitor
- midair
- fuel tank
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Abstract
The utility model discloses a kind of power capacitor apparatus discharging internal pressure, solve the problem that power capacitor causes internal pressure surge pressure to discharge due to internal discharge.The side of capacitor fuel tank (1) is provided with sleeve pipe (2), capacitor fuel tank end face (3) is provided with center hemispherical shell (4), capacitor fuel tank end face (3) is provided with center hemispherical shell (4), blast pipe (9) and one-way exhaust valve (10) is provided with on the top of center hemispherical shell (4), inclination air flue (13) is provided with in bulbus cordis (11) spheroid in midair, one end of inclination air flue (13) is communicated with the baseplane centre bore (12) of bulbus cordis (11) in midair, the other end outlet of inclination air flue (13) is arranged on semi-hollow sphere, sealing gasket (15) is provided with between the medial surface of center hemispherical shell (4) and the sphere of bulbus cordis (11) in midair.Ensure the personal safety of grid equipment and staff.
Description
Technical field
The present invention relates to a kind of power capacitor, particularly a kind of power capacitor apparatus discharging internal pressure, prevent it from exploding for the timely release pressure of energy during power capacitor internal discharge.
Background technology
Power capacitor is operationally blasted phenomenon sometimes.When power capacitor inner member generation interpolar punctures or casing insulation punctures, gathering pressure can be produced gradually at capacitor internal, run up to and to a certain degree can make capacitor explodes, so that cause fire.Capacitor discharge reason occurs more, main cause is: power capacitor inner member punctures; Power capacitor manufacturing process is bad causes corona, makes oil decomposition, case shell expands, pasta declines and causes and puncture; Other reasons such as the bad and leakage of oil of inner sealing.Cause series of physical, chemistry, electric effect thus, make insulation accelerated aging, decomposition, produce gas, cause capacitor tank internal pressure to increase, so that blast.At present, power capacitor does not have explosion-proof pressure relief device, once there is internal discharge, is easy to cause capacitor to be blasted, causes great property and loss of life or personal injury.
Summary of the invention
The invention provides a kind of power capacitor apparatus discharging internal pressure, solve the technical problem that existing power capacitor causes internal pressure surge pressure to discharge due to internal discharge.
The present invention solves above technical problem by the following technical programs:
A kind of power capacitor apparatus discharging internal pressure, comprise capacitor fuel tank, the side of capacitor fuel tank is provided with sleeve pipe, capacitor fuel tank end face is provided with center hemispherical shell, center hemispherical shell intracoelomic cavity and capacitor oil cabinets cavity are connected together, the top of center hemispherical shell is provided with blast pipe, the exhaust outlet of blast pipe is provided with one-way exhaust valve, bulbus cordis is in midair movably set with in the hemispherical shell intracoelomic cavity of center, extension spring is provided with between the inner chamber of blast pipe and the sphere top of bulbus cordis in midair, inclination air flue is provided with in semi-hollow ball, one end of inclination air flue is communicated with the baseplane centre bore of bulbus cordis in midair, the other end outlet of inclination air flue is arranged on semi-hollow sphere, sealing gasket is provided with between the medial surface of center hemispherical shell and the sphere of bulbus cordis in midair, the center of sealing gasket is provided with through hole, the bottom of center hemispherical shell is provided with ring washer.
Capacitor fuel tank end face is respectively arranged with hemispherical shell on rear side of center, left side hemispherical shell and right side hemispherical shell, and hemispherical shell on rear side of center, left side hemispherical shell are identical with the structure of the structure Jun Shiyu center hemispherical shell of right side hemispherical shell.
In semi-hollow ball, be provided with multiple tracks inclination air flue, these inclination air flues are conically laid.
The present invention can discharge the pressure that capacitor fuel tank internal increases sharply in time, within ensureing that internal pressure is reduced to 1.5 times of atmospheric pressure, prevents the explosion accident of capacitor, has ensured the personal safety of grid equipment and staff.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is capacitor end face pressure relief device distribution schematic diagram of the present invention;
Fig. 3 is hemispherical shell internal structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of power capacitor apparatus discharging internal pressure, comprise capacitor fuel tank 1, the side of capacitor fuel tank 1 is provided with sleeve pipe 2, capacitor fuel tank end face 3 is provided with center hemispherical shell 4, center hemispherical shell intracoelomic cavity and capacitor oil cabinets cavity are connected together, the top of center hemispherical shell 4 is provided with blast pipe 9, the exhaust outlet of blast pipe 9 is provided with one-way exhaust valve 10, bulbus cordis 11 is in midair movably set with in the hemispherical shell intracoelomic cavity of center, extension spring 14 is provided with between the inner chamber of blast pipe 9 and the sphere top of bulbus cordis 11 in midair, inclination air flue 13 is provided with in bulbus cordis 11 spheroid in midair, one end of inclination air flue 13 is communicated with the baseplane centre bore 12 of bulbus cordis 11 in midair, the other end outlet of inclination air flue 13 is arranged on semi-hollow sphere, sealing gasket 15 is provided with between the medial surface of center hemispherical shell 4 and the sphere of bulbus cordis 11 in midair, the center of sealing gasket 15 is provided with through hole 16, the bottom of center hemispherical shell 4 is provided with ring washer 8.
Capacitor fuel tank end face 3 is respectively arranged with hemispherical shell 5 on rear side of center, left side hemispherical shell 6 and right side hemispherical shell 7, and on rear side of center, the structure of hemispherical shell 5, left side hemispherical shell 6 and right side hemispherical shell 7 is identical with the structure of center hemispherical shell 4.
In bulbus cordis 11 spheroid in midair, be provided with multiple tracks or 12 inclination air flues 13, these inclination air flues 13 are conically laid, and the baseplane centre bore 12 of bulbus cordis 11 is these conical summits in midair.
Hemispherical shell 5, left side hemispherical shell 6 and right side hemispherical shell 7 on rear side of center hemispherical shell 4, center, these 4 pressure relief devices are distributed on capacitor fuel tank end face, and structure is just the same.As shown in Figure 2, if the length of dummy capacitor fuel tank end face 3 is b, the width of capacitor fuel tank end face 3 is a to distribution schematic diagram.If set the front long limit of capacitor fuel tank end face 3 as abscissa X, if the left minor face of capacitor fuel tank end face 3 is ordinate Y, the intersection point of front long limit and left minor face is initial point O, then on rear side of center hemispherical shell 4, center, the coordinate of hemispherical shell 5, left side hemispherical shell 6 and right side hemispherical shell 7 is:
(
,
), (
,
), (
,
) and (
,
);
Calculate according to stress analysis, can ensure that the internal pressure energy reliable delivery of whole capacitor is to these 4 pressure relief devices, and ensure that pressure relief device has optimum sensitivity.
The thickness of bulbus cordis in midair 11 that capacitor pressure relief device is arranged, can according to earth pressure release threshold values, and thickness setting is 2-6 millimeter, the pressure of hemispherical shell intracoelomic cavity of the present invention when 1.5 times of atmospheric pressure with regard to release pressure.In bulbus cordis 11 spheroid in midair, be provided with 12 road inclination air flues 13, these 12 exhaust gas inside pipes are uniformly distributed, and make 12 exhaust gas inside pipes every root blast pipe on overlooking differ 30 °.The effect of such design is when making capacitor internal pressure increase to 1.5 times of atmospheric pressure, when the internal pressure in arbitrary orientation promotes semi-hollow Metal Ball, any exhaust gas inside pipe of 12 blast pipes can be made can be communicated with blast pipe 9, thus to discharge internal pressure in time, reliably.The diameter arranging every root inclination air flue 13 is 6 millimeters.The exhaust outlet of blast pipe 9 is provided with one-way exhaust valve 10, prevents outside air from entering in capacitor.
When power capacitor certain position inner have discharge and make internal pressure reach 1.5 times of atmospheric pressure time, first the pressure relief device closed on this position senses pressure and starts working.The bulbus cordis in midair 11 that the pressure that this electric discharge produces is enough to promote earth pressure release rotates, and the inner inclination air flue 13 of semi-hollow Metal Ball is communicated with blast pipe 9 with through hole 16, and internal pressure is discharged respectively by blast pipe 9 immediately.When capacitor internal pressure is reduced to below 1.5 times of atmospheric pressure, bulbus cordis 11 is under the acting in conjunction of gravity and extension spring 14 in midair, return to home position, its inner inclination air flue 13 staggers mutually with blast pipe 9, no longer be communicated with, the sealing of keeping capacitor, now sealed mouth closes, and prevents pressure relief device from entering air and making moist.
Claims (3)
1. one kind can discharge the power capacitor apparatus of internal pressure, comprise capacitor fuel tank (1), the side of capacitor fuel tank (1) is provided with sleeve pipe (2), it is characterized in that, capacitor fuel tank end face (3) is provided with center hemispherical shell (4), center hemispherical shell intracoelomic cavity and capacitor oil cabinets cavity are connected together, the top of center hemispherical shell (4) is provided with blast pipe (9), the exhaust outlet of blast pipe (9) is provided with one-way exhaust valve (10), bulbus cordis (11) is in midair movably set with in the hemispherical shell intracoelomic cavity of center, extension spring (14) is provided with between the inner chamber of blast pipe (9) and the sphere top of bulbus cordis (11) in midair, inclination air flue (13) is provided with in bulbus cordis (11) spheroid in midair, one end of inclination air flue (13) is communicated with the baseplane centre bore (12) of bulbus cordis (11) in midair, the other end outlet of inclination air flue (13) is arranged on semi-hollow sphere, sealing gasket (15) is provided with between the medial surface of center hemispherical shell (4) and the sphere of bulbus cordis (11) in midair, the center of sealing gasket (15) is provided with through hole (16), the bottom of center hemispherical shell (4) is provided with ring washer (8).
2. a kind of power capacitor apparatus discharging internal pressure according to claim 1, it is characterized in that, capacitor fuel tank end face (3) is respectively arranged with hemispherical shell on rear side of center (5), left side hemispherical shell (6) and right side hemispherical shell (7), and on rear side of center, the structure at structure Jun Yu center hemispherical shell (4) of the structure of hemispherical shell (5), the structure of left side hemispherical shell (6) and right side hemispherical shell (7) is identical.
3. a kind of power capacitor apparatus discharging internal pressure according to claim 1, is characterized in that, in bulbus cordis (11) spheroid in midair, be provided with multiple tracks inclination air flue (13), these inclination air flues (13) are conically laid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404608.0U CN204720314U (en) | 2015-06-12 | 2015-06-12 | The power capacitor apparatus of internal pressure can be discharged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520404608.0U CN204720314U (en) | 2015-06-12 | 2015-06-12 | The power capacitor apparatus of internal pressure can be discharged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720314U true CN204720314U (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520404608.0U Withdrawn - After Issue CN204720314U (en) | 2015-06-12 | 2015-06-12 | The power capacitor apparatus of internal pressure can be discharged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882274A (en) * | 2015-06-12 | 2015-09-02 | 国网山西省电力公司电力科学研究院 | Electric power capacitor apparatus capable of releasing internal pressure |
-
2015
- 2015-06-12 CN CN201520404608.0U patent/CN204720314U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882274A (en) * | 2015-06-12 | 2015-09-02 | 国网山西省电力公司电力科学研究院 | Electric power capacitor apparatus capable of releasing internal pressure |
| CN104882274B (en) * | 2015-06-12 | 2017-09-26 | 国网山西省电力公司电力科学研究院 | The power capacitor apparatus of releasable internal pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20170926 |