CN201886867U - Rainproof shield of pressure release valve - Google Patents
Rainproof shield of pressure release valve Download PDFInfo
- Publication number
- CN201886867U CN201886867U CN2010206243165U CN201020624316U CN201886867U CN 201886867 U CN201886867 U CN 201886867U CN 2010206243165 U CN2010206243165 U CN 2010206243165U CN 201020624316 U CN201020624316 U CN 201020624316U CN 201886867 U CN201886867 U CN 201886867U
- Authority
- CN
- China
- Prior art keywords
- relief valve
- pressure relief
- pressure release
- rain cover
- release valve
- 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 - Lifetime
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Abstract
The utility model belongs to mechanical tools, in particular to a rainproof shield of a pressure release valve, which is simple in structure and has no affection on function of the pressure release valve, aims to solve problems of sending error, direct-current grounding and the like due to poor insulation of existing large and middle size transformer pressure release valves, and fundamentally overcomes the general defect that joints of the pressure release valve of a main transformer are easy to be damped. The technical scheme includes that the rainproof shield comprises a rainproof shield unit and a supporting plate, wherein one end of the supporting plate is connected with the rainproof cover unit thorough bolts.
Description
Technical field
The utility model belongs to the machine tool class, and concrete is a kind of pressure relief valve rain cover.
Background technology
Pressure relief valve is the requisite safeguard measure of big-and-middle-sized oil tank of transformer, has substituted pressure relief vent at present.When transformer breaks down and make tank pressure be increased to the relief valve operating value, the pressure relief valve breakdown action, the time generally is not more than 2 milliseconds, thus the protection fuel tank.Drive sensitive switch action simultaneously, each side switch of tripping transformer or post a letter.But because of the mistake that transformer pressure relief valve defective insulation causes is posted a letter, the situation of DC earthing happens occasionally, seriously even cause that each side switch of mistake saltus step depressor causes the accident.
How to avoid the generation of this type of accident,, but just can not monitor like this main transformer pressure relief valve actuating signal at present in the method that can only take in the transformer terminal case, to remove the pressure relief valve holding wire on the operating transformer.
Chinese patent 200920307926x discloses a kind of rain insensitive device that is used for the oil level indicator of transformer; it has only carried out rainproof to oil level indicator; to prevent that the rainwater and the sun from entering into oil level indicator; thereby improve the useful life of oil level indicator; can not protect whole transformer, the mistake of effectively avoiding transformer pressure relief valve defective insulation to cause is posted a letter, the situation of DC earthing and mistake saltus step each side switch of depressor and the accident that causes.
Summary of the invention
The purpose of this utility model is often to occur at existing big-and-middle-sized transformer pressure relief valve that the mistake that defective insulation causes is posted a letter, the situation of DC earthing, research and develop a kind of simple in structure, and do not influence the pressure relief valve rain cover of pressure relief valve function, cause the generality defective of defective insulation fundamentally eliminating the easy watered and wetting of main transformer pressure relief valve contact.
Above-mentioned technical problem of the present utility model is implemented by the following technical programs.
The pressure relief valve rain cover comprises rain cover and supporting bracket, and supporting bracket one end is connected with rain cover by bolt.
As preferably, rain cover is that the transparent body is wholely set, and adopts poly-carbon alloy made, has good transparent, rainproof, antistatic, anti-high-temperature behavior, satisfies the power industry requirement, the transparent action situation of observing indicating device that is beneficial to that is provided with.
As preferably, the other end of supporting bracket is connected with the transformer pressure relief valve by flange bolt.
As preferably, rain cover distance from top transformer pressure relief valve height is at least 160mm, and the height of 160mm can not influence transformer pressure relief valve indicator motion.
As preferably, supporting bracket evenly is provided with three, and its purpose is that with firm being installed on the transformer pressure relief valve of pressure relief valve rain cover, three supporting brackets adopt unique L types to add bending, (one man operation was finished in 10 minutes) easy for installation.
In sum, the utility model is compared with prior art and is had following advantage.
The utility model is simple in structure; the convenient installation; and can effectively protect relief valve secondary connection and sensitive switch; it is avoided because of the mistake that defective insulation causes is posted a letter, DC ground fault and mistake saltus step depressor switch failure; do not influence the pressure relief valve function again, in the generality defective of fundamentally eliminating the easy watered and wetting of main transformer pressure relief valve contact.Poly-carbon alloy (PC) material of rain cover has good transparent, rainproof, antistatic, anti-high-temperature behavior, satisfies the power industry requirement.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 is the utility model supporting bracket and transformer pressure relief valve connection diagram.
Fig. 4 is the enlarged drawing of the utility model supporting bracket.
Number in the figure is: 1, rain cover, 2, supporting bracket, 3, bolt, 4, flange bolt, 5, the transformer pressure relief valve.
Embodiment
Below by embodiment, in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of pressure relief valve rain cover comprises rain cover 1 and supporting bracket 2, and supporting bracket one end is connected with rain cover by bolt 3, and the other end of supporting bracket is connected with transformer pressure relief valve 5 by flange bolt 4, and supporting bracket evenly is provided with three.Rain cover is that the transparent body is wholely set, and rain cover distance from top transformer pressure relief valve height is at least 160mm.
When installing and using, equally distributed 3 supporting brackets of prepackage on the pressure relief valve mounting flange are put positive rain insensitive device and fastening bolt, the flange bolt on the even then fastening pressure relief valve are installed by transformer pressure relief valve external form.In case of necessity foreign material are removed in the secondary cable transition joint, and brushing RTV material, after the installation, require rain insensitive device smooth, firm.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. a pressure relief valve rain cover is characterized in that, comprises rain cover (1) and supporting bracket (2), and supporting bracket one end is connected with rain cover by bolt (3).
2. pressure relief valve rain cover according to claim 1 is characterized in that, described rain cover is that the transparent body is wholely set.
3. pressure relief valve rain cover according to claim 1 is characterized in that, the other end of described supporting bracket is connected with transformer pressure relief valve (5) by flange bolt (4).
4. pressure relief valve rain cover according to claim 1 and 2 is characterized in that, described rain cover distance from top transformer pressure relief valve height is at least 160mm.
5. according to claim 1 or 3 described pressure relief valve rain covers, it is characterized in that described supporting bracket evenly is provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206243165U CN201886867U (en) | 2010-11-25 | 2010-11-25 | Rainproof shield of pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206243165U CN201886867U (en) | 2010-11-25 | 2010-11-25 | Rainproof shield of pressure release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886867U true CN201886867U (en) | 2011-06-29 |
Family
ID=44184415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206243165U Expired - Lifetime CN201886867U (en) | 2010-11-25 | 2010-11-25 | Rainproof shield of pressure release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235159A (en) * | 2013-04-23 | 2013-08-07 | 国家电网公司 | Main-transformer non-electricity signal false-transmission prevention device |
| CN104006202A (en) * | 2014-05-30 | 2014-08-27 | 国网四川省电力公司双流县供电分公司 | Pressure relief valve rainproof device |
-
2010
- 2010-11-25 CN CN2010206243165U patent/CN201886867U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235159A (en) * | 2013-04-23 | 2013-08-07 | 国家电网公司 | Main-transformer non-electricity signal false-transmission prevention device |
| CN104006202A (en) * | 2014-05-30 | 2014-08-27 | 国网四川省电力公司双流县供电分公司 | Pressure relief valve rainproof device |
| CN104006202B (en) * | 2014-05-30 | 2016-02-10 | 国网四川省电力公司双流县供电分公司 | Pressure relief valve rain insensitive device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |