CN204558259U - For the explosion-proof valve of dry-type capacitor - Google Patents
For the explosion-proof valve of dry-type capacitor Download PDFInfo
- Publication number
- CN204558259U CN204558259U CN201520216025.5U CN201520216025U CN204558259U CN 204558259 U CN204558259 U CN 204558259U CN 201520216025 U CN201520216025 U CN 201520216025U CN 204558259 U CN204558259 U CN 204558259U
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- valve
- capacitor
- valve pocket
- valve body
- explosion
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Abstract
The utility model relates to a kind of explosion-proof valve for dry-type capacitor, comprise valve body and valve body is fixed on the locking nut on capacitor cover plate, the valve pocket being opened on upper end is provided with in the middle of valve body, the steam vent for draining capacitor internal pressure communicated with valve pocket is had in the middle of body base, be provided with in valve pocket, bottom spool, on, between bottom spool, Compress Spring is housed, valve pocket upper inside wall is provided with annular slot, annular slot is built with the circlip spacing to upper valve core, bottom spool bottom end face is provided with the cannelure for installing sealing ring, groove is built with the first sealing ring being used for carrying out valve pocket diapire end face seal.The utility model can adapt to capacitor internal pressure and slowly rise and the two kinds of situations that rise fast, and can not be damaged by available protecting capacitor, use cost is minimized.
Description
Technical field
The utility model relates to the proof assembl of capacitor, specifically a kind of explosion-proof valve for dry-type capacitor.
Background technology
If there is overtension during capacitor work, generate heat excessive, or puncture and wait under extreme case, internal gas expansion, makes pressure raise, very easily causes capacitor explodes, thus need to arrange explosion-protection equipment.For dry-type capacitor, because it can the structure of better fixed capacitor inside in jerk environment, and there will not be oil immersed type capacitor to leak oil condition, thus performance is more stable.But dry-type capacitor shell is all generally stainless steel welded, durable withstand voltage, once pressure is excessive, can cause outer casing rupture, not only can damages capacitor but also can work the mischief to equipment and personnel.Explosion-protection equipment conventional on current capacitor adopts destructive structure usually, the i.e. explosion-protection equipment action when pressure exceeds safe pressure, by cutting off circuit, capacitor internal pressure is no longer raised, or shell is split exhaust pressure relief, although can capacitor explodes be prevented, but capacitor is also destroyed, cannot reuse, thus add the use cost of user.
Summary of the invention
The purpose of this utility model is to provide a kind of explosion-proof valve for dry-type capacitor, can be excreted out by capacitor internal pressure safely, and can not be damaged by capacitor for voltage protection, can reduce the use cost of user.
The utility model is achieved in that the explosion-proof valve for dry-type capacitor, and comprise valve body and valve body is fixed on the locking nut on capacitor cover plate, valve body lower portion has the external screw thread coordinated with locking nut; The valve pocket being opened on upper end is provided with in the middle of valve body, the steam vent for draining capacitor internal pressure communicated with valve pocket is had in the middle of body base, upper and lower spool is provided with in valve pocket, between upper and lower spool, Compress Spring is housed, valve pocket upper inside wall is provided with annular slot, annular slot is built with the circlip spacing to upper valve core, and bottom spool bottom end face is provided with for installing the cannelure of sealing ring, and groove is built with the first sealing ring being used for carrying out valve pocket diapire end face seal.When capacitor internal pressure exceedes safety value, gas promotes bottom spool and overcomes on the elastic force of Compress Spring to move through the air admission hole of body base, to make bottom bottom spool and bottom valve pocket between there is gap, the that gas that continues upwards enters between upper and lower spool through this gap and the gap between bottom spool sidewall and valve pocket, then by outside the gap dump valve between upper valve core sidewall and valve pocket.In case of emergency case causes capacitor internal gas pressure to rise rapidly, then crunch is risen rapidly by bottom spool, Compress Spring promotion upper valve core, is rushed out by circlip from the draw-in groove in valve pocket, thus quick pressure releasing.When situation is recovered normal, again put in draw-in groove by circlip, capacitor can be reused.
For making the gas entered in valve pocket can be expelled to valve body outside in time, upper valve core sidewall has the air discharge duct in longitudinally arranging.
For preventing gas from being discharged by valve body and cover plate gap, valve outer wall has the end face coordinated with capacitor cover plate, described end face is provided with cannelure, and groove is built with the second sealing ring being used for carrying out capacitor cover plate end face seal.
For preventing Compress Spring tilted or skew at valve pocket, the upper end of upper valve core lower end and bottom spool is provided with spring retention posts.
As shown from the above technical solution, the utility model explosion-proof valve can adapt to capacitor internal pressure and slowly rise and the two kinds of situations that rise fast, and can not be damaged by available protecting capacitor, use cost is minimized.And anti-explosion valve structure is simple, and processing cost is low.
Accompanying drawing explanation
Fig. 1 is each assembled schematic diagram of the utility model.
Fig. 2 is the utility model structural representation.
In figure, the implication of label symbol is as follows:
1-circlip 2-upper valve core 21-spring retention posts 22-air discharge duct 3-Compress Spring 4-bottom spool 41-spring retention posts 5-first sealing ring 6-valve body 61-valve pocket 62-annular slot 63-air admission hole 64-end face 65-cannelure 7-second sealing ring 8-capacitor cover plate 9-locking nut
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, 2, the utility model comprises valve body 6 and locking nut 9, and the external screw thread coordinated with locking nut 9 is arranged at valve body 6 bottom, and valve body 6 is fixed on capacitor cover plate 8 by threaded engagement by locking nut 9.Valve body 1 outer wall has the end face 64 coordinated capacitor cover plate 8, end face 64 is provided with cannelure 65, and groove is built with the second sealing ring 7 being used for carrying out with cover plate 8 end face seal.
The valve pocket 61 being opened on upper end is provided with in the middle of valve body 6, the steam vent 63 for draining capacitor internal pressure communicated with valve pocket 61 is had in the middle of bottom valve body 6, upper and lower spool 2,4 is provided with in valve pocket 61, the cross sectional shape of upper and lower spool 2,4 coordinates with valve pocket 61 cross sectional shape, and in this example, valve pocket 61 cross section is rounded.Between upper and lower spool 2,4, Compress Spring 3 is housed, the upper end of upper valve core 2 lower end and bottom spool 4 is provided with spring retention posts 21,41, to locate Compress Spring 3.Valve pocket 61 upper inside wall is provided with annular slot 62, annular slot 62 is built with the circlip 1 spacing to upper valve core 2, bottom spool 4 bottom end face is provided with for installing the cannelure 42 of sealing ring, and groove is built with the first sealing ring 5 being used for carrying out with valve pocket 61 diapire end face seal.
For convenience of exhaust, upper valve core 2 sidewall has the air discharge duct 22 in longitudinally arranging.
First, second sealing ring 5,7 above-mentioned can adopt 0 RunddichtringO.
Claims (4)
1. for the explosion-proof valve of dry-type capacitor, comprise valve body (6) and valve body is fixed on the locking nut (9) on capacitor cover plate (8), the external screw thread coordinated with locking nut (9) is arranged at valve body (6) bottom, it is characterized in that: in the middle of valve body (6), be provided with the valve pocket (61) being opened on upper end, valve body (6) has the steam vent (63) for draining capacitor internal pressure communicated with valve pocket in the middle of bottom, valve pocket is provided with in (61), bottom spool (2, 4), on, bottom spool (2, 4) Compress Spring (3) is housed between, valve pocket (61) upper inside wall is provided with annular slot (62), annular slot (62) is built with the circlip (1) spacing to upper valve core (2), bottom spool (4) bottom end face is provided with the cannelure (42) for installing sealing ring, groove is built with the first sealing ring (5) being used for carrying out valve pocket (61) diapire end face seal.
2. the explosion-proof valve for dry-type capacitor according to claim 1, is characterized in that: upper valve core (2) sidewall has the air discharge duct (22) in longitudinally arranging.
3. the explosion-proof valve for dry-type capacitor according to claim 1, it is characterized in that: valve body (6) outer wall has the end face (64) coordinated with capacitor cover plate (8), described end face (64) is provided with cannelure (65), and groove is built with the second sealing ring (7) being used for carrying out capacitor cover plate (8) end face seal.
4. the explosion-proof valve for dry-type capacitor according to claim 1 or 2 or 3, is characterized in that: the upper end of upper valve core (2) lower end and bottom spool (4) is provided with spring retention posts (21,41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216025.5U CN204558259U (en) | 2015-04-10 | 2015-04-10 | For the explosion-proof valve of dry-type capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216025.5U CN204558259U (en) | 2015-04-10 | 2015-04-10 | For the explosion-proof valve of dry-type capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558259U true CN204558259U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520216025.5U Expired - Fee Related CN204558259U (en) | 2015-04-10 | 2015-04-10 | For the explosion-proof valve of dry-type capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558259U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114514A (en) * | 2015-09-18 | 2015-12-02 | 深圳市中车业成实业有限公司 | Bottom valve unit of oil damper for rail locomotive and vehicle |
| CN105845437A (en) * | 2016-05-19 | 2016-08-10 | 郑州航空工业管理学院 | Metallized film capacitor for track circuit |
| CN106229144A (en) * | 2016-08-24 | 2016-12-14 | 中国船舶重工集团公司第七〇二研究所 | A kind of electric capacity explosion-protection equipment |
| CN109521636A (en) * | 2017-09-19 | 2019-03-26 | 卡西欧计算机株式会社 | Electronic device, light supply apparatus and projection arrangement |
| CN112216509A (en) * | 2020-09-23 | 2021-01-12 | 益阳市中钰科技电子有限公司 | Capacitor with explosion-proof pressure release function |
| CN112366080A (en) * | 2020-11-21 | 2021-02-12 | 无锡市电力滤波有限公司 | Pressure relief valve for direct current support capacitor |
-
2015
- 2015-04-10 CN CN201520216025.5U patent/CN204558259U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114514A (en) * | 2015-09-18 | 2015-12-02 | 深圳市中车业成实业有限公司 | Bottom valve unit of oil damper for rail locomotive and vehicle |
| CN105114514B (en) * | 2015-09-18 | 2018-01-30 | 深圳市中车业成实业有限公司 | A kind of bottom valve unit of rail locomotive vehicle oil-pressure damper |
| CN105845437A (en) * | 2016-05-19 | 2016-08-10 | 郑州航空工业管理学院 | Metallized film capacitor for track circuit |
| CN105845437B (en) * | 2016-05-19 | 2017-11-03 | 郑州航空工业管理学院 | A kind of metallic film capacitor suitable for track circuit |
| CN106229144A (en) * | 2016-08-24 | 2016-12-14 | 中国船舶重工集团公司第七〇二研究所 | A kind of electric capacity explosion-protection equipment |
| CN109521636A (en) * | 2017-09-19 | 2019-03-26 | 卡西欧计算机株式会社 | Electronic device, light supply apparatus and projection arrangement |
| CN109521636B (en) * | 2017-09-19 | 2021-10-08 | 卡西欧计算机株式会社 | Electronic device, light source device and projection device |
| CN112216509A (en) * | 2020-09-23 | 2021-01-12 | 益阳市中钰科技电子有限公司 | Capacitor with explosion-proof pressure release function |
| CN112216509B (en) * | 2020-09-23 | 2022-07-05 | 益阳市中钰科技电子有限公司 | Capacitor with explosion-proof pressure release function |
| CN112366080A (en) * | 2020-11-21 | 2021-02-12 | 无锡市电力滤波有限公司 | Pressure relief valve for direct current support capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20200410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |