CN203585626U - Manhole flange protection device of voltage stabilizer of nuclear power plant - Google Patents
Manhole flange protection device of voltage stabilizer of nuclear power plant Download PDFInfo
- Publication number
- CN203585626U CN203585626U CN201320757408.4U CN201320757408U CN203585626U CN 203585626 U CN203585626 U CN 203585626U CN 201320757408 U CN201320757408 U CN 201320757408U CN 203585626 U CN203585626 U CN 203585626U
- Authority
- CN
- China
- Prior art keywords
- flange
- voltage stabilizer
- nuclear power
- power plant
- manhole
- 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
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 48
- 230000001681 protective effect Effects 0.000 claims description 49
- 238000007789 sealing Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model provides a manhole flange protection device of a voltage stabilizer of a nuclear power plant. The manhole flange protection device comprises a flange protection pad. The flange protection pad is mounted on a flange sealing surface, can cover a pressure boundary of the flange sealing surface and is detachably connected with the flange sealing surface, and the shape of the flange protection pad is identical to that of the flange sealing surface. The manhole flange protection device has the advantages that the manhole flange protection device is provided with the flange protection pad, and the flange protection pad covers the flange sealing surface, so that the pressure boundary of the manhole flange sealing surface of the voltage stabilizer of a circuit of the nuclear power plant can be protected and can be effectively prevented from being damaged by other hard objects articles such as tools.
Description
Technical field
The utility model relates to nuclear power plant voltage stabilizer area of maintenance, relates in particular to a kind of nuclear power plant voltage stabilizer manhole flange protective gear.
Background technique
During nuclear power station overhaul, open after a loop main equipment voltage stabilizer manhole, inservice inspection part need be carried out inspection work to voltage stabilizer internal chamber, inspection work need be used relevant special tool, in turnover voltage stabilizer manhole process, there is larger risk in instrument---damage manhole flange sealing surface, the inward flange of manhole flange sealing surface is the pressure boundary in a loop, sealing is play to pass and acted on, once be caused poor sealing by hard objects scratchings such as instruments, pressure boundary damage can cause the bearing capacity of a loop voltage stabilizer to decline, may cause the risk of a circuit cools liquid seepage, but also entail dangers to personal safety, because the sealing surface of voltage stabilizer manhole flange is had relatively high expectations to technical parameter, cause to its damage, repairing by secondary reparation, once sealing surface is damaged, need to change whole voltage stabilizer, the manufacture cost of whole voltage stabilizer is very high, can cause great loss like this.
Model utility content
In order to solve the problems of the prior art, the utility model provides a kind of nuclear power plant voltage stabilizer manhole flange protective gear.
The utility model provides a kind of nuclear power plant voltage stabilizer manhole flange protective gear; comprise the flange protection pad that is arranged on flange facing and can be placed on place, flange facing pressure boundary; described flange protection pad and described flange facing are for removably connecting, and described flange protection pad is identical with described flange facing shape.
As further improvement of the utility model, described flange protection pad is provided with the first fixed hole, and described flange protection pad is through at described the first fixed hole by protective pad fixing bolt and is fixed on described flange facing.
As further improvement of the utility model, the surface of contact of described flange protection pad and described flange facing is provided with anti-slip tank.
As further improvement of the utility model, this voltage stabilizer manhole flange protective gear also comprises the protective housing that covers in voltage stabilizer manhole, and described protective housing is arranged on described flange facing.
As further improvement of the utility model, described protective housing comprises the fixing part that is connected with described flange facing and for preventing that foreign matter from falling to the protection face in voltage stabilizer, described protection face with described fixing part for being fixedly connected with.
As further improvement of the utility model, described flange facing is provided with cover plate fixed bolt hole, and described fixing part is placed on described cover plate fixed bolt hole.
As further improvement of the utility model, described fixing part is provided with the second fixed hole, and described protective housing is fixed in described cover plate fixed bolt hole through described the second fixed hole by protective housing fixing bolt.
As further improvement of the utility model, described protection face is the reticular structure that is provided with vent hole.
As further improvement of the utility model, described protective housing is boss shape.
As further improvement of the utility model, described protection face is welded on described fixing part.
The beneficial effects of the utility model are: flange protection pad is set; flange protection pad covers on flange facing; place, pressure boundary to nuclear power station one loop voltage stabilizer manhole flange sealing surface protects, and can effectively prevent that other hard things such as instrument from causing damage to it.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model nuclear power plant voltage stabilizer manhole flange protective gear;
Fig. 2 is the sectional drawing after the utility model nuclear power plant voltage stabilizer manhole flange protective gear is installed.
Embodiment
Reference character: 1-flange facing 2-flange protection pad 3-protective housing 11-liner plate fixed bolt hole 12-cover plate fixed bolt hole 21-first fixed hole 31-fixing part 32-protection face 33-the second fixed hole.
As depicted in figs. 1 and 2; the utility model discloses a kind of nuclear power plant voltage stabilizer manhole flange protective gear; comprise flange protection pad 2; manhole flange is provided with flange facing 1; the seal degree of flange facing 1 is extremely important; especially the pressure boundary on flange facing is located; pressure boundary is positioned at the inward flange of flange facing; described flange protection pad 2 is arranged on flange facing 1 and is placed on sealing surface pressure boundary, and nuclear power station one loop voltage stabilizer manhole flange sealing surface pressure boundary is protected.
This nuclear power plant voltage stabilizer manhole flange protective gear also comprises the protective housing 3 that covers in voltage stabilizer manhole, and protective housing 3 is arranged on flange facing 1.
Described protective housing 3 comprises fixing part 31 and protection face 32, fixing part 31 with protection face 32 for being fixedly connected with, in the present embodiment, protection face 32 is welded on fixing part 31, fixing part 31 is arranged on flange facing 1, and be placed on the cover plate fixed bolt hole 12 on flange facing 1, protection face 32 is placed on manhole door, flange facing 1 is provided with a plurality of for fixing cover plate fixed bolt hole 12, when people Buddhism is opened, cover plate fixed bolt hole 12 can expose, when the peripheral work of voltage stabilizer, often can make the parts such as instrument or bolt drop in the bolt hole in voltage stabilizer or on flange facing, need to look for like this part or the instrument that drop, increased workload, extended the overhaul time, also easily instrument in voltage stabilizer is damaged, protective housing 3 covers the cover plate fixed bolt hole 12 on its manhole door and flange facing, prevented falling into of instrument or part.
Described fixing part 31 is provided with the second fixed hole 33, protective housing 3 is fixed on flange facing 1 through the second fixed hole 33 by protective housing fixing bolt, protective housing fixing bolt is fixed in cover plate fixed bolt hole 12 through after the second fixed hole 33, has reduced equally the design of the positioning and mounting structure of protective housing 3.
Described protection face 32 is for being provided with the reticular structure of vent hole, vent hole is less, can not affect protection effect, because voltage stabilizer manholes will guarantee ventilation effect after opening, protection face 32 is provided with a plurality of vent holes and has guaranteed that the ventilation of voltage stabilizer manhole is unaffected, and for protective housing 3 in needs the present embodiment of a large opening flow area in loop after meeting voltage stabilizer manholes and opening is set to boss shape, thereby having increased the quantity of vent hole, the area that has increased protection face 32 just can guarantee that the gross area of vent hole is not less than the area of voltage stabilizer manhole like this.
Before protective housing 3 is installed, prime minister will be arranged on flange protection pad 2 on flange facing 1, and its flange protection pad 2 is arranged between protective housing 3 and flange facing 1, prevents the scratching of 3 pairs of flange facings 1 of protective housing.
The utility model voltage stabilizer manhole flange protective gear has not only avoided the damage of a loop voltage stabilizer manhole flange sealing surface also to realize the effect of anti-foreign matter.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a nuclear power plant voltage stabilizer manhole flange protective gear; it is characterized in that: comprise the flange protection pad that is arranged on flange facing and can be placed on place, flange facing pressure boundary; described flange protection pad and described flange facing are for removably connecting, and described flange protection pad is identical with described flange facing shape.
2. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 1; it is characterized in that: described flange protection pad is provided with the first fixed hole, described flange protection pad is through at described the first fixed hole by protective pad fixing bolt and is fixed on described flange facing.
3. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 2, is characterized in that: the surface of contact of described flange protection pad and described flange facing is provided with anti-slip tank.
4. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 2, is characterized in that: this voltage stabilizer manhole flange protective gear also comprises the protective housing that covers in voltage stabilizer manhole, and described protective housing is arranged on described flange facing.
5. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 4; it is characterized in that: described protective housing comprises the fixing part that is connected with described flange facing and for preventing that foreign matter from falling to the protection face in voltage stabilizer, described protection face with described fixing part for being fixedly connected with.
6. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 5, is characterized in that: described flange facing is provided with cover plate fixed bolt hole, and described fixing part is placed on described cover plate fixed bolt hole.
7. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 6; it is characterized in that: described fixing part is provided with the second fixed hole, described protective housing is fixed in described cover plate fixed bolt hole through described the second fixed hole by protective housing fixing bolt.
8. according to the nuclear power plant voltage stabilizer manhole flange protective gear described in claim 6 or 7, it is characterized in that: described protection face is the reticular structure that is provided with vent hole.
9. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 8, is characterized in that: described protective housing is boss shape.
10. nuclear power plant voltage stabilizer manhole flange protective gear according to claim 5, is characterized in that: described protection face is welded on described fixing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757408.4U CN203585626U (en) | 2013-11-27 | 2013-11-27 | Manhole flange protection device of voltage stabilizer of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757408.4U CN203585626U (en) | 2013-11-27 | 2013-11-27 | Manhole flange protection device of voltage stabilizer of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585626U true CN203585626U (en) | 2014-05-07 |
Family
ID=50583541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757408.4U Expired - Lifetime CN203585626U (en) | 2013-11-27 | 2013-11-27 | Manhole flange protection device of voltage stabilizer of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423057A (en) * | 2015-12-24 | 2016-03-23 | 哈尔滨锅炉厂有限责任公司 | Companion flange protective device and protective method |
| CN107214468A (en) * | 2017-08-01 | 2017-09-29 | 芜湖精达机械制造有限公司 | A kind of flange welding protector |
-
2013
- 2013-11-27 CN CN201320757408.4U patent/CN203585626U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423057A (en) * | 2015-12-24 | 2016-03-23 | 哈尔滨锅炉厂有限责任公司 | Companion flange protective device and protective method |
| CN105423057B (en) * | 2015-12-24 | 2018-02-13 | 哈尔滨锅炉厂有限责任公司 | Companion flange protection device and guard method |
| CN107214468A (en) * | 2017-08-01 | 2017-09-29 | 芜湖精达机械制造有限公司 | A kind of flange welding protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhaojun Inventor after: Lu Zhihong Inventor after: Pu Junchun Inventor after: Feng Zhantao Inventor after: Han Jinjin Inventor after: Fan Yuguo Inventor after: Wang Dongli Inventor after: Wu Xiaofei Inventor before: Wang Zhaojun Inventor before: Lu Zhihong Inventor before: Pu Junchun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG ZHAOJUN LU ZHIHONG PU JUNCHUN TO: WANG ZHAOJUN LU ZHIHONG PU JUNCHUN FENG ZHANTAO HAN JINJIN FAN YUGUO WANG DONGLI WU XIAOFEI |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |