CN205226649U - Nuclear power station hole block structure - Google Patents
Nuclear power station hole block structure Download PDFInfo
- Publication number
- CN205226649U CN205226649U CN201520925230.9U CN201520925230U CN205226649U CN 205226649 U CN205226649 U CN 205226649U CN 201520925230 U CN201520925230 U CN 201520925230U CN 205226649 U CN205226649 U CN 205226649U
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- Prior art keywords
- flange
- nuclear power
- power station
- blocking structure
- structure according
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims description 67
- 239000000463 material Substances 0.000 claims description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 12
- 239000002901 radioactive waste Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a nuclear power station hole block structure, its including fix in the civil engineering wall body provide the chuan qiang route for the process line wall bushing, two respectively the welding the mounting flange at wall bushing both ends and two respectively the shutoff can dismantle for can dismantle sealing connection between flange and the mounting flange at the flange dismantled at wall bushing both ends. Compared with the prior art, the utility model discloses consequently nuclear power station hole block structure easy dismounting can satisfy the in -service inspection and the maintenance requirement of process line, but reuse has moreover effectively reduced radioactive waste's quantity.
Description
Technical field
The utility model belongs to the holes blocking field of Nuclear Power Station Factory Building, more particularly, relates to a kind of nuclear power station holes blocking structure.
Background technique
At present, the mechanical pipe holes blocking technology of nuclear power station is very ripe, applies also very extensive.Existing holes blocking technology is mainly according to different shutoff requirements, and such as airtight, watertight, fireproof blocking, biological shield shutoff etc., adopt suitable plugging material by the gap filling between pipeline and hole edge, to ensure the continuity of structure.
But, according to the feedback in construction project, when adopting prior art shutoff hole, just cannot dismantle after shutoff.When needing the pipe welding seam of inservice inspection to be positioned at the scope of shutoff, the requirement of shutoff and the requirement of inservice inspection will clash, and bring difficulty to installation and inspection.
In view of this, necessaryly a kind of nuclear power station holes blocking structure not affecting inservice inspection is provided.
Model utility content
The purpose of this utility model is: provide a kind of dismountable nuclear power station holes blocking structure, to avoid the inservice inspection of holes blocking to pipeline to impact, thus effectively improves speed of application.
To achieve these goals, the utility model provides a kind of nuclear power station holes blocking structure, it comprises and being fixed in civil engineering body of wall as process pipe provides the wall bushing in path through walls, two fastening flanges being welded on wall bushing two ends respectively and two dismountable flange of shutoff at wall bushing two ends respectively, for removable seal is connected between dismountable flange with fastening flange.
One as the utility model nuclear power station holes blocking structure is improved, and also comprises the flange gasket be arranged between fastening flange and dismountable flange.
One as the utility model nuclear power station holes blocking structure is improved, and described flange gasket is fire-retardant non-asbestos flange gasket.
One as the utility model nuclear power station holes blocking structure is improved, and also comprise blocking component, described blocking component is filled in the annular space between process pipe and wall bushing.
One as the utility model nuclear power station holes blocking structure is improved, and the quantity of described blocking component is at least two; The side of each blocking component is bending side at axial direction, makes the approximal surface of adjacent blocking component interlaced with each other.
One as the utility model nuclear power station holes blocking structure is improved, and described blocking component adopts silicone rubber or high density silicone rubber material to process, and the bending side of its side is step surface, male and fomale(M&F), wavy surface or serrated face.
One as the utility model nuclear power station holes blocking structure is improved, the internal diameter of described dismountable flange and the external diameter of process pipe suitable.
One as the utility model nuclear power station holes blocking structure is improved, and described fastening flange and dismountable flange are whole plane flange or the convex flange of thickness 8-25mm, and the two is removably connected by bolt and nut component; Flange gasket is and fastening flange and the supporting whole plane flange gasket of dismountable flange or convex surface pad.
One as the utility model nuclear power station holes blocking structure is improved, the as a whole annulus of described fastening flange, or is combined into by two semi-rings; Dismountable flange is combined into by least two separable semi-rings.
One as the utility model nuclear power station holes blocking structure is improved, and the often end of described wall bushing all exposes in civil engineering body of wall, and exposed length is 80 ~ 150mm.
Compared with prior art, the utility model nuclear power station holes blocking structure easy accessibility, therefore, it is possible to meet inservice inspection and the maintenance requirement of process pipe, and can reuse, effectively reduce the quantity of radioactive waste.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model nuclear power station holes blocking structure and Advantageous Effects thereof are described in detail.
Fig. 1 is the installment state schematic diagram of the utility model nuclear power station holes blocking structure.
Fig. 2 is the structural representation of fastening flange in Fig. 1.
Fig. 3 is two semi-loop schematic diagram of dismountable flange in Fig. 1.
Fig. 4 is the structural representation of flange gasket in Fig. 1.
Fig. 5 is the schematic front view of blocking component in Fig. 1.
Fig. 6 is the schematic top plan view of blocking component in Fig. 5.
Embodiment
In order to make the purpose of this utility model, technological scheme and Advantageous Effects thereof more clear, below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.Should be understood that, the embodiment described in this specification is only used to explain the utility model, is not intended to limit the utility model.
Refer to Fig. 1, the utility model nuclear power station holes blocking structure comprises wall bushing 10, fastening flange 20, dismountable flange 30, flange gasket 40 and blocking component 50.Wherein, fastening flange 20 is fixed on the two ends of wall bushing 10; Blocking component 50 is filled in the annular space between process pipe 60 and wall bushing 10; Dismountable flange 30 is connected with fastening flange 20 removable seal respectively, thus by blocking component 50 shutoff in wall bushing 10; Flange gasket 40 is arranged between fastening flange 20 and dismountable flange 30.
Process pipe 60 can be the pipeline having thermal insulation layer, also can be the pipeline not having thermal insulation layer.
The cross section of wall bushing 10 is ring, and its internal diameter is greater than the external diameter (for the process pipe having thermal insulation layer, the said external diameter of present specification comprises thermal insulation layer) of process pipe 60.The material of wall bushing 10 is preferably steel.
Refer to Fig. 2, fastening flange 20 is whole plane flange, and the internal diameter of its internal diameter and wall bushing 10 is suitable.Fastening flange 20 evenly offers multiple bolt hole 22.The thickness of fastening flange 20 can between 8-25mm value, be 15mm in illustrated embodiment.According to as installed needs, fastening flange 20 can be an overall annulus as shown in Figure 2, but also can be combined into by two semi-rings and (it should be noted that, semi-ring in this specification and claims book not only refers to the ring of 180 degree, also can be greater than or less than the ring of 180 degree, such as fastening flange 20 can be combined into by two 180 degree of semi-rings, also can be combined into by two Length discrepancy semi-rings).The material of fastening flange 20 is preferably carbon steel.
Refer to Fig. 3, dismountable flange 30 and fastening flange 20 support the use, and the structure of the two is substantially identical with material, and just the internal diameter of dismountable flange 30 is less, suitable with the external diameter of process pipe 60.Dismountable flange 30 is non-integral annulus also, but is combined into by two or more separable semi-rings 32; Because two semi-rings 32 can realize the object dismantled, so normally two semi-rings 32.The thickness of dismountable flange 30 can between 8-25mm value, be 20mm in illustrated embodiment, it offer the bolt hole 34 corresponding with the bolt hole 22 of fastening flange 20.
Refer to Fig. 4, flange gasket 40 is whole plane flange gasket, and its size is processed according to the size of process pipe 60 with dismountable flange 30, is certainly also annular and is provided with bolt hole 42.Flange gasket 40 is preferably fire-retardant non-asbestos flange gasket.
Refer to Fig. 5 and Fig. 6, blocking component 50 is filled in the annular space between process pipe 60 and wall bushing 10, and according to fire prevention or the biological shield shutoff demand difference of hole, it adopts silicone rubber or high density silicone rubber material to process.The preferred specification of each blocking component 50 is 1/4th of the annular space between process pipe 60 and wall bushing 10.In order to adapt to the construction error of process pipe 60 and wall bushing 10, and effective the passing of block radiation ray, the side 52 of blocking component 50 is bending side at axial direction, as various step surface, male and fomale(M&F), wavy surface or serrated face etc., makes the approximal surface of adjacent blocking component 50 interlaced with each other.
Understandable, in various embodiments, fastening flange 20 and dismountable flange 30 also can be convex flange; Accordingly, flange gasket 40 is also convex surface pad, and its size is processed according to the size of process pipe 60 with dismountable flange 30, is also annular but does not need bolt hole.
The construction sequence of use the utility model nuclear power station holes blocking structural traps hole is:
1) be reserved in civil engineering body of wall 70 by wall bushing 10, metope certain length is respectively exposed at its two ends, exposed length can between 80 ~ 150mm value, be 100mm in illustrated embodiment;
2) two fastening flanges 20 are weldingly fixed on respectively the two ends of wall bushing 10; If process pipe 60 is constructed before this step, then need fastening flange 20 dimidiation ring, then be welded to connect with wall bushing 10 respectively and be spliced into complete circle;
3) will be filled in the annular space between process pipe 60 and wall bushing 10 with the blocking component 50 of mineral wool or biological shield shutoff; If the requirement of the protection of this hole inanimate object or fireproof blocking, can cancel this step, namely not use blocking component 50;
4) two flange gaskets 40 are fitted respectively (certainly with fastening flange 20, if process pipe 60 is being constructed before, flange gasket 40 also needs dimidiation to assemble), utilize bolt and nut component 80 to be connected with fastening flange 20 respectively by two dismountable flanges 30 afterwards, complete the shutoff of hole.Now, flange gasket 40 between fastening flange 20 and dismountable flange 30, blocking component 50 by flange gasket 40 and dismountable flange 30 shutoff in wall bushing 10.
When needing to carry out inservice inspection to the block section pipe welding seam of process pipe 60, only need take bolt and nut component 80 apart, take off dismountable flange 30, flange gasket 40, blocking component 50 and pipeline external thermal insulation (if there is), inservice inspection can be carried out to process pipe 60.And, after inspection, each element pulled down can be reappeared reinstall, realize the shutoff again of hole.
In sum, the utility model nuclear power station holes blocking structure is applicable to circular process pipe 60 through shutoff during civil engineering body of wall 70, can meet the requirement of airtight, watertight, fire prevention and radiation protection and pressure-bearing shutoff.Therefore, the region needing to carry out hole shutoff in nuclear power station and other industrial premises is highly suitable for.
Compared with prior art, the utility model nuclear power station holes blocking structure at least has following beneficial effect:
1) detachable and can reuse: the hole when some region needs shutoff, and when being had a requirement of inservice inspection and maintain and replace by the some processes pipeline 60 of shutoff, adopt the process pipe of traditional method for blocking to be difficult to meet the demands; The utility model then easily can realize the dismounting of holes blocking structure, thus meets inservice inspection and the maintenance requirement of process pipe;
2) quantity of radioactive waste is reduced: for the hole of some radiation shielding shutoff, when needs keep in repair process pipe 60 or check, tradition method for blocking needs to cut original shutoff, items after cutting are all with radioactivity, and can not reuse again, and the process cut also may produce radioactive dust, increase the radioactive dose of personnel; Holes blocking structure of the present utility model not only can dismounting easily, and can reuse, and has both decreased the quantity of radioactive waste, has again reduced the pollution to environment and the irradiation to human body.
Understandablely be, in other embodiments: the size of wall bushing 10, fastening flange 20, dismountable flange 30, flange gasket 40 and blocking component 50 and material can require to make suitable adjustment according to the size of process pipe 60 and shutoff, and fixing between dismountable flange 30 and fastening flange 20 also can be realized by other removable connectors.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned mode of execution.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (10)
1. a nuclear power station holes blocking structure, comprise and being fixed in civil engineering body of wall as process pipe provides the wall bushing in path through walls, it is characterized in that: also comprise fastening flange and the dismountable flange of two difference shutoff at wall bushing two ends that two are welded on wall bushing two ends respectively, for removable seal is connected between dismountable flange with fastening flange.
2. nuclear power station holes blocking structure according to claim 1, is characterized in that: also comprise the flange gasket be arranged between fastening flange and dismountable flange.
3. nuclear power station holes blocking structure according to claim 2, is characterized in that: described flange gasket is fire-retardant non-asbestos flange gasket.
4. nuclear power station holes blocking structure according to claim 1, it is characterized in that: also comprise blocking component, described blocking component is filled in the annular space between process pipe and wall bushing.
5. nuclear power station holes blocking structure according to claim 4, is characterized in that: the quantity of described blocking component is at least two; The side of each blocking component is bending side at axial direction, makes the approximal surface of adjacent blocking component interlaced with each other.
6. nuclear power station holes blocking structure according to claim 5, is characterized in that: described blocking component adopts silicone rubber or high density silicone rubber material to process, and the bending side of its side is step surface, male and fomale(M&F), wavy surface or serrated face.
7. nuclear power station holes blocking structure according to claim 1, is characterized in that: the internal diameter of described dismountable flange and the external diameter of process pipe suitable.
8. nuclear power station holes blocking structure according to claim 1, is characterized in that: described fastening flange and dismountable flange are whole plane flange or the convex flange of thickness 8-25mm, and the two is removably connected by bolt and nut component; Flange gasket is and fastening flange and the supporting whole plane flange gasket of dismountable flange or convex surface pad.
9. nuclear power station holes blocking structure according to claim 1, is characterized in that: the as a whole annulus of described fastening flange, or is combined into by two semi-rings; Dismountable flange is combined into by least two separable semi-rings.
10. nuclear power station holes blocking structure according to claim 1, it is characterized in that: the often end of described wall bushing all exposes in civil engineering body of wall, and exposed length is 80 ~ 150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925230.9U CN205226649U (en) | 2015-11-19 | 2015-11-19 | Nuclear power station hole block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925230.9U CN205226649U (en) | 2015-11-19 | 2015-11-19 | Nuclear power station hole block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226649U true CN205226649U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925230.9U Expired - Fee Related CN205226649U (en) | 2015-11-19 | 2015-11-19 | Nuclear power station hole block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226649U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069616A (en) * | 2017-06-07 | 2017-08-18 | 国家电网公司 | A kind of GIS pore structures through walls |
| CN108049509A (en) * | 2017-11-29 | 2018-05-18 | 杭州晶索建材有限公司 | A kind of explosion-proof detachable holes blocking system of Novel fireproof and its construction method |
| CN110173597A (en) * | 2019-04-19 | 2019-08-27 | 东莞建晖纸业有限公司 | Paper mill stock tank and white water chest Fast Installation manhole or line process |
| CN110481659A (en) * | 2019-09-24 | 2019-11-22 | 履地科技(天津)有限公司 | A kind of quick-changing type rubber belt track wheel construction |
| CN114636022A (en) * | 2022-05-07 | 2022-06-17 | 山西省安装集团股份有限公司 | Water supply and drainage pipeline structure for building construction |
| RU218420U1 (en) * | 2023-03-27 | 2023-05-25 | Магсумзян Галимзянович Харисов | FIXED SUPPORT FOR HEATING AND WATER SUPPLY PIPELINES |
-
2015
- 2015-11-19 CN CN201520925230.9U patent/CN205226649U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069616A (en) * | 2017-06-07 | 2017-08-18 | 国家电网公司 | A kind of GIS pore structures through walls |
| CN107069616B (en) * | 2017-06-07 | 2018-07-06 | 国家电网公司 | A kind of GIS pore structures through walls |
| CN108049509A (en) * | 2017-11-29 | 2018-05-18 | 杭州晶索建材有限公司 | A kind of explosion-proof detachable holes blocking system of Novel fireproof and its construction method |
| CN110173597A (en) * | 2019-04-19 | 2019-08-27 | 东莞建晖纸业有限公司 | Paper mill stock tank and white water chest Fast Installation manhole or line process |
| CN110481659A (en) * | 2019-09-24 | 2019-11-22 | 履地科技(天津)有限公司 | A kind of quick-changing type rubber belt track wheel construction |
| CN110481659B (en) * | 2019-09-24 | 2024-06-04 | 履地科技(天津)有限公司 | Quick-change rubber crawler wheel structure |
| CN114636022A (en) * | 2022-05-07 | 2022-06-17 | 山西省安装集团股份有限公司 | Water supply and drainage pipeline structure for building construction |
| RU218420U1 (en) * | 2023-03-27 | 2023-05-25 | Магсумзян Галимзянович Харисов | FIXED SUPPORT FOR HEATING AND WATER SUPPLY PIPELINES |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 |