CN203258180U - 750kV high-resistance pressure release valve rain cover - Google Patents
750kV high-resistance pressure release valve rain cover Download PDFInfo
- Publication number
- CN203258180U CN203258180U CN 201320277348 CN201320277348U CN203258180U CN 203258180 U CN203258180 U CN 203258180U CN 201320277348 CN201320277348 CN 201320277348 CN 201320277348 U CN201320277348 U CN 201320277348U CN 203258180 U CN203258180 U CN 203258180U
- Authority
- CN
- China
- Prior art keywords
- pressure release
- cover body
- release valve
- cover
- rain cover
- 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 relates to a rain cover device, and in particular relates to a 750kV high-resistance pressure release valve rain cover. The 750kV high-resistance pressure release valve rain cover is provided with an empty cavity cover body; a through hole is formed in the upper end surface of the cover body, and is a pressure release hole; fixing holes are formed in four corners of the lower part of the cover body; the side end surface part of the cover body is communicated with a semi-sealed wiring cover; the connecting part of the wiring cover and the cover body is additionally provided with a seal ring. The 750kV high-resistance pressure release valve rain cover provided by the utility model is simple in structure, is good in integral insulation property, provides great convenience for the production in the future after a model is manufactured, can guarantee that a pressure release valve part of a parallel-connection high-voltage electric reactor neutral point small electric reactor can be prevented from being affected by rainwater and tidal air, and increases guarantee of the safe and reliable running of equipment in a transformer substation.
Description
Technical field
The utility model relates to a kind of rain insensitive device, relates in particular to a kind of 750kV high resistance Rainproof shield of pressure release valve.
Background technique
When power system transmission line is distant, all install the parallel high voltage reactor in the circuit both sides, the area that particularly vast territory and abundant resources like this in Xinjiang, 750 kv grids have become the Xinjiang main grid structure, and successfully network with Northwest Grid, become the unique networking approach in Xinjiang and west area.The nationwide is also progressively to large power network development, and remote, large capacity transmits electric power and loads has been the inevitable development direction.The parallel high voltage reactor is as the main equipment of power equipment, and its safe and reliable operation directly affects the Systems balanth reliable operation.At present, the parallel high voltage reactor neutral point small reactor earth pressure release valve portion that puts into operation exposes in environment, and its wiring part sealing is very poor, is easy to cause dc system grounding in the electric substation after rainwater, moisture enter.Straight-flow system belongs to isolated neutral system, is applied to the important loop such as control loop, signal circuit in the electric substation.If will directly affect the safe operation of equipment after the straight-flow system insulation reduces, very easily cause main equipment to stop transport, cause large-area power-cuts, cause immeasurable economic loss and negative effect.In order to improve power supply quality and grid stability, must eliminate this hidden danger.
Summary of the invention
The purpose of this utility model is to propose a kind of increase small reactor pressure relief valve wiring part sealing, increases the 750kV high resistance Rainproof shield of pressure release valve of straight-flow system insulating properties.
The purpose of this utility model is achieved in that 750kV high resistance Rainproof shield of pressure release valve, and it has a cavity cover body, offers through hole in the cover body upper-end surface, and this through hole is pressure relief opening.Offer fixed hole for four jiaos in the cover body bottom, the place is communicated with semi-enclosed separate terminal enclosure in the cover body side end face, and separate terminal enclosure and cover body joint install seal ring additional.
Owing to implement technique scheme, the utility model is simple in structure, integral insulation is good, easily produce later on after having made model, it can guarantee that parallel high voltage reactor neutral point small reactor earth pressure release valve portion avoids the impact of rainwater, moisture, and the safe and reliable operation of power transformation station equipment has been increased guarantee.
Description of drawings: concrete structure of the present utility model is provided by following drawings and Examples:
Fig. 1 is 750kV high resistance Rainproof shield of pressure release valve structural representation.
Legend: 1, pressure relief opening, 2, separate terminal enclosure, 3, seal ring, 4, cover body, 5, fixed hole.
Embodiment:
The utility model is not subjected to following embodiment's restriction, can determine concrete mode of execution according to the technical solution of the utility model and actual conditions.
Embodiment: as shown in Figure 1, it has a cavity cover body 4 750kV high resistance Rainproof shield of pressure release valve, offers through hole in cover body 4 upper-end surfaces, and this through hole is pressure relief opening 1.Offer fixed hole 5 four jiaos of cover body 4 bottoms, the place is communicated with semi-enclosed separate terminal enclosure 2 in cover body 4 side end faces, and separate terminal enclosure 2 installs seal ring 3 additional with cover body 4 joints.
Described separate terminal enclosure 2 is the uncovered semiclosed cavity in lower end, and its upper-end surface is arc shaped surface.
Pressure relief opening 1 guarantees can discharge smoothly unnecessary pressure behind the earth pressure release valve events.Separate terminal enclosure 2 along 4 centimetres of connection cable extensions, has fully ensured the function of rain cover in wiring place; Fixed hole is used for fixed enclosure 4, prevents that rain cover is owing to the reasons such as strong wind break away from.
Above technical characteristics has consisted of most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs inessential technical characteristics, satisfies the needs of different situations.
Claims (2)
1. 750kV high resistance Rainproof shield of pressure release valve, it is characterized in that: it has a cavity cover body, offer through hole in the cover body upper-end surface, this through hole is pressure relief opening, offer fixed hole for four jiaos in the cover body bottom, the place is communicated with semi-enclosed separate terminal enclosure in the cover body side end face, and separate terminal enclosure and cover body joint install seal ring additional.
2. 750kV high resistance Rainproof shield of pressure release valve as claimed in claim 1, it is characterized in that: described separate terminal enclosure is the uncovered semiclosed cavity in lower end, and its upper-end surface is arc shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320277348 CN203258180U (en) | 2013-05-21 | 2013-05-21 | 750kV high-resistance pressure release valve rain cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320277348 CN203258180U (en) | 2013-05-21 | 2013-05-21 | 750kV high-resistance pressure release valve rain cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258180U true CN203258180U (en) | 2013-10-30 |
Family
ID=49470743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320277348 Expired - Lifetime CN203258180U (en) | 2013-05-21 | 2013-05-21 | 750kV high-resistance pressure release valve rain cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824690A (en) * | 2013-12-09 | 2014-05-28 | 国家电网公司 | Spraying protection method for 66-kilovolt dry-type electric reactor |
| 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 |
-
2013
- 2013-05-21 CN CN 201320277348 patent/CN203258180U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824690A (en) * | 2013-12-09 | 2014-05-28 | 国家电网公司 | Spraying protection method for 66-kilovolt dry-type electric reactor |
| 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 |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |