CN2487928Y - Directional pressure relief valve - Google Patents
Directional pressure relief valve Download PDFInfo
- Publication number
- CN2487928Y CN2487928Y CN 01235289 CN01235289U CN2487928Y CN 2487928 Y CN2487928 Y CN 2487928Y CN 01235289 CN01235289 CN 01235289 CN 01235289 U CN01235289 U CN 01235289U CN 2487928 Y CN2487928 Y CN 2487928Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- pressure relief
- relief valve
- transformer
- directed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a directional pressure relief valve for a sealed container which comprises a valve body, a rain cover, a valve body base, a plug cover, a return spring and a signal lever, wherein the valve body is provided with an orientation oil drainage steam vent, the valve body base which is in screwed connection with the valve body is in muff coupling with lock nuts by a nut base, the lock nuts are connected with the sealed container, the bottom surface of the valve body base is provided with a seal ring; the orientation oil drainage steam vent can be connected by a connecting pipe with the sealed container which is a transformer oil box to form a loop. When the utility model is used as the directional pressure relief valve for the sealed container, the utility model is capable of reducing the environmental pollution caused by spurting materials out of the container when the container resists pressure; in addition, the transformer is convenient to be maintained and repaired by workers.
Description
The utility model relates to the directed pressure relief valve that a kind of seal container is used.
At present, it is big that more widely used pressure relief valve all exists volume, installs and uses shortcomings such as inconvenience, aging performance instability.Chinese patent notification number CN2081021U has announced " a kind of transformer pressure relief valve ", the valve body of this pressure relief valve all is provided with the oil extraction steam vent four, easily transformer and surrounding environment are polluted, wayward, the seal ring of the connecting part of its attaching nut and housing seat is exposed outside in addition, is subjected to ectocine big, be easy to wear out, cause the seal of vessel performance to reduce, need often to change, increased follow-up maintenance load.
The purpose of this utility model is that a kind of have directed oil extraction vapour function, stable performance, simple in structure, easy for installation, directed pressure relief valve that volume is little will be provided.
The purpose of this utility model realizes with the following methods.This directed pressure relief valve comprises valve body, canopy, valve block, look nut, plug cover, Returnning spring, signal pole, one directed oil extraction steam vent is arranged on valve body, the valve block that is threaded with valve body connects lock nut by the nut cover for seat, lock nut is connected with the connecting base of seal container, on the bottom surface of valve block seal ring is arranged.
With face in conjunction with the embodiments accompanying drawing the utility model is made further detailed description.
Fig. 1 is the utility model plan view
Fig. 2 is the plan view of Fig. 1
Fig. 3 is A-A sectional view among Fig. 2 (when signal pole 1 does not expose canopy 4
State)
Among the figure: the directed oil extraction steam vent of 1-signal pole 2-pressure testing lock nut 3-seal ring 4-canopy 5-valve body 6-look nut 7-Returnning spring 8-plug cover 9-seal ring 10-valve block 11-lock nut 12-nut seat 13-seal ring 14-15-body cavity 16-pressure testing sheet 17-connecting base
Present embodiment is as the transformer pressure relief valve, and look nut (6) is installed in valve body (5) inner chamber by screw thread, and can move up and down in body cavity (15), to regulate cracking pressure and the closing pressure size of Returnning spring (7) to plug cover (8).The one directed oil extraction steam vent (14) that is connected with body cavity (15) is arranged on the valve body (5), and this orientation oil extraction steam vent (14) can be connected to form the loop by connecting tube and oil tank of transformer.There is nut seat (12) bottom of valve block (10), and an end socket of lock nut (11) is stuck on the nut seat (12), and the other end is connected by the connecting base of internal thread with the oil hole of transformer case lid.Seal ring (13) on the bottom surface of valve block (10) is by lock nut (11) and external isolation, is subjected to external environment condition, influence of temperature change less, is difficult for aging.Canopy (4) upper end is connected with pressure testing lock nut (2), can be under pressure testing lock nut (2), signal pole (1) goes up and place pressure testing sheet (16), be convenient to use when the user does the whole bulge test of oil tank of transformer.Do not do bulge test, when transformer normally moves, must remove pressure testing sheet (16).
The utility model in use, determine earlier directed oil extraction steam vent (14) towards, lock nut (11) is enclosed within on the connecting base (17) on the oil hole of transformer case lid, adjusts behind the orientation of directed oil extraction steam vent (14) lock nut (11) to be tightened getting final product with spanner.Transformer is when work, when transformer inside has an accident or fault and cause that oil is vaporized in the fuel tank, pressure sharply raises, this pressure can will be filled in cover (8) breakdown in 1～2ms, pressure is discharged, Returnning spring (7) is compressed simultaneously, signal pole (1) exposes outside the canopy (4), easily make the people observe red-label on the signal pole (1), know fault is arranged in the transformer, after plug cover (8) is opened, the transformer oil that ejects from fuel tank sprays towards fixing direction by directed oil extraction steam vent (14), if when directed oil extraction steam vent (14) had connecting tube to be connected with oil tank of transformer, then transformer oil is got back to oil tank by connecting tube, and was so promptly free from environmental pollution, save transformer oil again; When pressure dropped to the closing pressure value, Returnning spring (7) was being pressed (8) reposition of plug cover in 1～4s, reach reliably and close, and make fuel tank keep malleation, prevents that air, impurity, dust from entering fuel tank.
The utility model is mainly used in oil tank of transformer as a kind of directed pressure relief valve, also can be used for other seal containers, as the directed pressure relief valve, the material ejection in the time of can reducing container and drive to press in the container is to the pollution of surrounding environment, also is convenient to manually maintenance, maintenance etc. to transformer.
Claims (3)
1, a kind of directed pressure relief valve, comprise valve body (5), canopy (4), valve block (10), look nut (6), plug cover (8), Returnning spring (7), signal pole (1), it is characterized in that a directed oil extraction steam vent (14) is arranged on valve body (5), the valve block (10) that is threaded with valve body (5) is by nut seat (12) socket lock nut (11), lock nut (11) is connected with the connecting base (17) of seal container, and seal ring (13) is arranged on the bottom surface of valve block (10).
2, directed pressure relief valve according to claim 1, it is characterized in that directed oil extraction steam vent (14) can by connecting tube be connected to form the loop as the oil tank of transformer of seal container.
3, directed pressure relief valve according to claim 1 is characterized in that canopy (4) upper end is connected with pressure testing lock nut (2), can be under pressure testing lock nut (2), signal pole (1) goes up and place pressure testing sheet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01235289 CN2487928Y (en) | 2001-06-13 | 2001-06-13 | Directional pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01235289 CN2487928Y (en) | 2001-06-13 | 2001-06-13 | Directional pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2487928Y true CN2487928Y (en) | 2002-04-24 |
Family
ID=33648454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01235289 Expired - Fee Related CN2487928Y (en) | 2001-06-13 | 2001-06-13 | Directional pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2487928Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116374879A (en) * | 2023-06-06 | 2023-07-04 | 苏州艾沃意特汽车设备有限公司 | Upright post lifting machine with M-shaped bending arm |
-
2001
- 2001-06-13 CN CN 01235289 patent/CN2487928Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116374879A (en) * | 2023-06-06 | 2023-07-04 | 苏州艾沃意特汽车设备有限公司 | Upright post lifting machine with M-shaped bending arm |
| CN116374879B (en) * | 2023-06-06 | 2023-09-05 | 苏州艾沃意特汽车设备有限公司 | Upright post lifting machine with M-shaped bending arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |