CN101245868A - Pressure release valve with water-proof structure - Google Patents
Pressure release valve with water-proof structure Download PDFInfo
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- CN101245868A CN101245868A CNA2007100376467A CN200710037646A CN101245868A CN 101245868 A CN101245868 A CN 101245868A CN A2007100376467 A CNA2007100376467 A CN A2007100376467A CN 200710037646 A CN200710037646 A CN 200710037646A CN 101245868 A CN101245868 A CN 101245868A
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- cover
- relief valve
- pressure relief
- pressure releasing
- deck
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Abstract
The invention discloses a pressure releasing valve with a waterproof structure, comprising a connecting thread at the lower part of an external circumferential wall, a hex nut at the middle part and a circumferential wall which is adjacent to the hex nut. The upper part of the circumferential wall of the pressure releasing valve is provided with a position limit ring which is radially convex. The pressure releasing valve also comprises a waterproof cover which covers the positions above the hex nut of the pressure releasing valve. The waterproof cover comprises an axial exsection part wall surface, an arch typed cover with the internal circumferential surface matched with the external circumferential surface of the position limit ring, a top cover which is arranged at the upper end of the cover and a ring-shaped clamping frame with an opening. The clamping frame is fixedly arranged on the internal wall of the lower part of the cover; furthermore, when the waterproof cover is arranged on the pressure releasing valve, the clamping frame is clamped on the circumferential wall between the hex nut and the position limit ring of the pressure releasing ring. The pressure releasing valve adopts a waterproof cover which leads the pressure releasing valve which is exposed on the external wall of a transformer oil tank to be covered, thus eliminating the problem that water is accumulated in the internal chamber of the pressure releasing valve, and further avoids insulation accident.
Description
Technical field
The present invention relates to the protective gear on a kind of transformer, be specifically related to a kind of pressure relief valve that is installed on transformer case lid or the tank wall with waterproof construction.
Technical background
At present; on hermetic distribution transformer; set up a protective gear mostly; that is exactly the plain edition pressure relief valve that can open automatically or close, and this plain edition pressure relief valve is when tank internal pressure reaches certain numerical value; can open the pressure that discharges fuel tank internal automatically; after being reduced to certain numerical value when tank internal pressure, can also close automatically, guarantee that transformer is in whole sealing status.But after this plain edition pressure relief valve is installed on the transformer, in transportation process or when being stored in outdoor location, run into rainy weather, in the cavity of this plain edition pressure relief valve, have ponding, if the ponding when transformer puts into operation in its cavity is not dried, when the personnel of putting into operation spur the draw ring release tank internal pressure of pressure relief valve (operation that must finish before putting into operation), ponding can enter along the inwall of this cavity in the oil tank of transformer, can reduce the insulating property of transformer oil like this, also can cause the generation of accident when serious.
Summary of the invention
So the object of the invention is overcoming the deficiencies in the prior art, provide a kind of pressure relief valve that can eliminate pressure relief valve cavity inner product water problems with waterproof construction.
The technological scheme that realizes above-mentioned purpose is: a kind of pressure relief valve with waterproof construction, comprise the connecting thread of periphery wall bottom, the hexagon nut at middle part and the peripheral wall adjacent with hexagon nut, described pressure relief valve is provided with a radially outstanding limited ring on the top of peripheral wall; Comprise that also one covers the water proof cover of the hexagon nut of pressure relief valve with the upper part, this water proof cover comprises that top cover and that an axial cut-away divides the suitable arch formula cover, of wall and inner circumferential surface and limited ring outer circumferential face to be arranged on this cover upper end has the ring type deck of opening, described deck is fixedly mounted on the inwall of cover bottom, and when water proof cover was installed on the pressure relief valve, described deck was fastened on the hexagon nut and the peripheral wall between the limited ring of pressure relief valve.
Above-mentioned pressure relief valve with waterproof construction, wherein, the cover of described water proof cover is made tangent line by a half-round with from the two ends of half-round the straight wall portion that extends to form constitutes; Described deck is made by pipe, its internal diameter equals the outer warp at pressure relief valve peripheral wall position, after in being installed to cover, the half-round internal surface of deck outer surface and cover is tangent, and two free ends of the straight wall portion of cover and deck opening are at a distance of certain span.
Above-mentioned pressure relief valve with waterproof construction, wherein, described top cover be shaped as an oval that matches with the shape of cross section of cover and the whole upper-end surface that covers cover.
The above-mentioned pressure relief valve with waterproof construction, wherein, described water proof cover adopts engineering plastics to make.
After having adopted the technical solution of the pressure relief valve with waterproof construction of the present invention, the pressure relief valve that is exposed on the transformer oil box outer wall is covered by water proof cover, eliminated pressure relief valve cavity inner product water problems, and then the generation of having stopped insulation fault.The water proof cover that the present invention adopts is simple in structure, easy to use, the reliability height.
Description of drawings
Fig. 1 is the structural representation with pressure relief valve of waterproof construction of the present invention;
Fig. 2 is the structural representation of the pressure relief valve in the pressure relief valve with waterproof construction of the present invention;
Fig. 3 is the structural representation of the water proof cover in the pressure relief valve with waterproof construction of the present invention.
Embodiment
See also Fig. 1 to Fig. 3, a kind of pressure relief valve with waterproof construction of the present invention comprises a pressure relief valve 1 and a water proof cover 2.
The periphery wall bottom of pressure relief valve 1 has connecting thread 10, and the middle part has hexagon nut 11, with hexagon nut 11 adjacent be peripheral wall 12, the top of peripheral wall 12 is provided with a radially outstanding limited ring 13,
In one embodiment, water proof cover 2 adopts transparent engineering plastics to make.The cover 20 of water proof cover 2 is made tangent line by a half-round 201 with from the two ends of half-round the straight wall portion 202 that extends to form constitutes.Top cover 21 be shaped as an oval that matches with the shape of cross section of cover 20 and the whole upper-end surface that covers cover 20.Deck 22 is made by pipe, the external diameter of peripheral wall 12 through being slightly less than pressure relief valve 1 in it, highly also be slightly less than hexagon nut 11 to the distance between the limited ring 13, after in being installed to cover 20, deck 22 is tangent with half-round 201 inwalls of cover 20, and two free ends 220 of the straight wall portion 202 of cover 20 and deck 22 openings are at a distance of certain span, so that deck 22 has certain force of strain on the peripheral wall 12 that is engaged to pressure relief valve 1 time, can kayser after engaging in the peripheral wall 12 of pressure relief valve 1.
Owing to adopted at the easy ponding position of original pressure relief valve water proof cover be installed, the draw ring that the structure of this water proof cover does not promptly hinder the personnel of putting into operation to spur pressure relief valve discharges the act of operation of tank internal pressure, has solved the problem of ponding in the pressure relief valve cavity again
Above embodiment is only for the usefulness that the present invention is described, but not limitation of the present invention, person skilled in the relevant technique, under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technological schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (4)
1. the pressure relief valve with waterproof construction comprises the connecting thread of periphery wall bottom, the hexagon nut at middle part and the peripheral wall adjacent with hexagon nut, it is characterized in that,
Described pressure relief valve is provided with a radially outstanding limited ring on the top of peripheral wall;
Comprise that also one covers the water proof cover of the hexagon nut of pressure relief valve with the upper part, this water proof cover comprises that top cover and that an axial cut-away divides the suitable arch formula cover, of wall and inner circumferential surface and limited ring outer circumferential face to be arranged on this cover upper end has the ring type deck of opening, described deck is fixedly mounted on the inwall of cover bottom, and when water proof cover was installed on the pressure relief valve, described deck was fastened on the hexagon nut and the peripheral wall between the limited ring of pressure relief valve.
2. the pressure relief valve with waterproof construction according to claim 1 is characterized in that, the cover of described water proof cover is made tangent line by a half-round with from the two ends of half-round the straight wall portion that extends to form constitutes; Described deck is made by pipe, its internal diameter equals the outer warp at pressure relief valve peripheral wall position, after in being installed to cover, the half-round internal surface of deck outer surface and cover is tangent, and two free ends of the straight wall portion of cover and deck opening are at a distance of certain span.
3. the pressure relief valve with waterproof construction according to claim 1 is characterized in that, described top cover be shaped as an oval that matches with the shape of cross section of cover and the whole upper-end surface that covers cover.
4. the pressure relief valve with waterproof construction according to claim 1 is characterized in that, described water proof cover adopts engineering plastics to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100376467A CN100529491C (en) | 2007-02-16 | 2007-02-16 | Pressure release valve with water-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100376467A CN100529491C (en) | 2007-02-16 | 2007-02-16 | Pressure release valve with water-proof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101245868A true CN101245868A (en) | 2008-08-20 |
| CN100529491C CN100529491C (en) | 2009-08-19 |
Family
ID=39946475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100376467A Active CN100529491C (en) | 2007-02-16 | 2007-02-16 | Pressure release valve with water-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100529491C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871540A (en) * | 2009-04-24 | 2010-10-27 | 美铝公司 | A kind of pressure relief valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2110274U (en) * | 1991-12-28 | 1992-07-15 | 长春市北方变压器组件研究所 | Water-proof cover for transformer fan axial end |
| CN2254980Y (en) * | 1996-02-07 | 1997-05-28 | 湖南省益阳市电器设备厂 | Valve for pressure releasing for transformer |
| ITPD20010014U1 (en) * | 2001-02-27 | 2002-08-27 | Comem Spa | SAFETY VALVE STRUCTURE ESPECIALLY FOR ELECTRIC TRANSFORMERS IN OIL BATH. |
| DE20318265U1 (en) * | 2003-11-26 | 2005-04-14 | Maschinenfabrik Reinhausen Gmbh | Pressure relief valve for oil-filled transformers and step switches has cover arrangement as pot-shaped housing enclosing entire pressure-relief valve directly attached to housing flange |
| CN201021726Y (en) * | 2007-02-16 | 2008-02-13 | 上海置信非晶合金变压器有限公司 | Pressure release valve with waterproof structure |
-
2007
- 2007-02-16 CN CNB2007100376467A patent/CN100529491C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871540A (en) * | 2009-04-24 | 2010-10-27 | 美铝公司 | A kind of pressure relief valve |
| CN101871540B (en) * | 2009-04-24 | 2012-07-18 | 美铝公司 | Pressure relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100529491C (en) | 2009-08-19 |
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Owner name: SHANGHAI ZHIXIN ELECTRICAL CO., LTD. SHANGHAI ZHIX Owner name: SHANGHAI ZHIXIN ELECTRIC AMORPHOUS CO., LTD. Free format text: FORMER OWNER: SHANGHAI ZHIXIN AMORPHOUS ALLOY TRANSFORMER CO., LTD. Effective date: 20100804 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200335 NO.590, -, NO.588, TIANSHAN WEST ROAD, CHANGNING DISTRICT, SHANGHAI CITY TO: 201712 NO.1888, TIANCHEN ROAD, SHANGHAI CITY |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100804 Address after: 201712 Shanghai Tianchen Road No. 1888 Co-patentee after: Shanghai Zhixin Electrical Co., Ltd. Patentee after: Shanghai Zhixin Electric Amorphous Co., Ltd. Co-patentee after: Shanghai Zhixin Amorphous Alloy Transformer Co., Ltd. Address before: 200335 -590, No. 588 Tianshan West Road, Shanghai, Changning District Patentee before: Shanghai Zhixin Amorphous Alloy Transformer Co., Ltd. |