CN203839053U - Protective sealed chamber applied to fractured mechanical penetration part - Google Patents
Protective sealed chamber applied to fractured mechanical penetration part Download PDFInfo
- Publication number
- CN203839053U CN203839053U CN201420085102.3U CN201420085102U CN203839053U CN 203839053 U CN203839053 U CN 203839053U CN 201420085102 U CN201420085102 U CN 201420085102U CN 203839053 U CN203839053 U CN 203839053U
- Authority
- CN
- China
- Prior art keywords
- mechanical penetration
- penetration part
- penetration piece
- sealed chamber
- fractured
- 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 - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model belongs to a layout design of pipelines in reactor buildings of nuclear power plants and in particular relates to a protective sealed chamber applied to a fractured mechanical penetration part. The protective sealed chamber is capable of guaranteeing the sealing function of the mechanical penetration part in a certain period of time in the case of accident of the fractured mechanical penetration part. The side all, top surface and bottom surface of the sealed chamber are respectively connected to an inner shell and an outer shell of a double-layer safety shell so as to form a sealed space which surrounds the mechanical penetration part in an annular area; the protective sealed chamber is capable of buying time for handling accident and reducing damage caused by the fractured mechanical penetration part. On the other hand, the protective sealed chamber is also capable of reducing damage of exterior disaster to the mechanical penetration part.
Description
Technical field
The utility model belongs to the design of nuclear island building of nuclear power plant piping arrangement, and specifically a kind of protection airtight cell for double containment machinery penetration piece, under the accident conditions of breaking at mechanical penetration piece, guarantees the sealing function of mechanical penetration piece within a certain period of time.
Background technology
Machinery penetration piece is to be applied in Containment Isolation System, and while guaranteeing one or several pipeline through double containment, by the inner key seal member linking together with external fluid pipeline of reactor building, it belongs to a part for containment vessel.
Under various operating modes, mechanical penetration piece should meet the requirement of system pipeline design function, must guarantee again impermeability and the integrality of containment.According to the related request of nuclear safety, mechanical penetration piece needs to keep carrying out the ability of function under major accident operating mode.
Double containment machinery penetration piece is a part that realizes containment security function, is also a weak link of containment security function.Machinery penetration piece two ends are pre-buried respectively at containment inside and outside shell, other structure comprises end socket, expansion joints etc. are all arranged on double containment annular space region, this annular space region is easily subject to the impact that outside disaster is destroyed, and, once mechanical penetration piece breaks, can to external environment condition, cause damage due to earth pressure release and whipping again.
Utility model content
The purpose of this utility model is the potential safety hazard existing for double containment machinery penetration piece, a kind of protection airtight cell after being applied to mechanical penetration piece and breaking is provided, in the situation that double containment machinery penetration piece breaks, can guarantee within a certain period of time the security function of containment, the ability that promotes nuclear power station reply accident conditions, strengthens the design safety guarantee of nuclear power station.
The technical solution of the utility model is as follows: a kind of protection airtight cell after being applied to mechanical penetration piece and breaking, annulus between reactor building double containment, the side wall of airtight cell, end face, bottom surface are connected with the inside and outside shell of double containment respectively, form a confined space that surrounds mechanical penetration piece in annulus.
Further, the protection airtight cell after being applied to mechanical penetration piece and breaking as above, wherein, the side wall of described airtight cell is provided with the sealed door for mechanical penetration piece maintenance and operation.
Further, described sealed door is opened to door in being.
The beneficial effects of the utility model are as follows: airtight cell provided by the utility model is arranged on double containment annular space region, for breaking in situation at mechanical penetration piece, guarantee within a certain period of time the sealing function of mechanical penetration piece, for processing accident is raced against time and reduces the infringement that mechanical penetration piece breaks and causes.On the other hand, reduced the destruction of outside disaster to mechanical penetration piece.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Protection airtight cell after being applied to mechanical penetration piece and breaking provided by the utility model, annulus between reactor building double containment, airtight cell side wall, end face, bottom surface are connected with double containment inside and outside shell respectively, form an airtight space.
Described airtight cell adopts high strength design, can bear the pressure after pipeline and mechanical penetration piece break, and does not make pipeline internal medium produce and runs off, and is intended in situation that mechanical penetration piece lost efficacy, one of penetration piece function be supplemented.
Airtight cell design comprises sealed door, for maintenance and the operation of mechanical penetration piece.Described sealed door is opened to door in being, can be used for personnel and enters and mechanical penetration piece installation and maintenance operation; When the situation of breaking of mechanical penetration piece occurs, pipeline medium flows into airtight cell, airtight cell supercharging, and sealed door more closes to stop and leaks.The intensity of airtight cell wall can be born high energy pipeline pressure, whipping and be realized the effect of isolation mutually.
Embodiment
As shown in Figure 1, machinery penetration piece 8 is through the outer built-in steel sleeve 7 of the outer containment reinforced concrete wall 6 of reactor building, penetration piece end socket 13 two ends respectively with run through 11 welding of pipeline and primary containment built-in steel sleeve, in annulus between primary containment reinforced concrete wall 2 and outer containment reinforced concrete wall 6, airtight cell is set, primary containment built-in steel sleeve 11 is embedded in 1 welding in steel lining inside primary containment reinforced concrete wall 2 and primary containment, the side wall 4 of airtight cell and end face 10, bottom surface (not shown) is connected with outer containment reinforced concrete inner wall 5 with primary containment reinforced concrete wall outer wall 3 respectively, the part that mechanical penetration piece 8 is positioned to annulus is surrounded.Primary containment built-in steel sleeve 11 in annulus, waveform expansion gear 12, penetration piece end socket 13 are all enclosed in airtight cell.On the side wall 4 of airtight cell, be provided with the sealed door 9 for mechanical penetration piece maintenance and operation, sealed door 9 is opened to door in being, can be used for personnel and enters and mechanical penetration piece installation and maintenance operation.
The utility model can guarantee within a certain period of time the security function of containment in the situation that double containment machinery penetration piece breaks, and has promoted the ability of nuclear power station at reply accident conditions, has strengthened the design safety guarantee of nuclear power station.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and within modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (3)
1. the protection airtight cell after being applied to mechanical penetration piece and breaking, it is characterized in that: the annulus between reactor building double containment, the side wall of airtight cell, end face, bottom surface are connected with the inside and outside shell of double containment respectively, form a confined space that surrounds mechanical penetration piece in annulus.
2. the protection airtight cell after being applied to mechanical penetration piece and breaking as claimed in claim 1, is characterized in that: the side wall of described airtight cell is provided with the sealed door for mechanical penetration piece maintenance and operation.
3. the protection airtight cell after being applied to mechanical penetration piece and breaking as claimed in claim 2, is characterized in that: described sealed door is opened to door in being.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085102.3U CN203839053U (en) | 2014-02-27 | 2014-02-27 | Protective sealed chamber applied to fractured mechanical penetration part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085102.3U CN203839053U (en) | 2014-02-27 | 2014-02-27 | Protective sealed chamber applied to fractured mechanical penetration part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839053U true CN203839053U (en) | 2014-09-17 |
Family
ID=51516865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085102.3U Expired - Fee Related CN203839053U (en) | 2014-02-27 | 2014-02-27 | Protective sealed chamber applied to fractured mechanical penetration part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737244A (en) * | 2019-02-15 | 2019-05-10 | 中广核工程有限公司 | Nuclear power plant's penetration piece end socket and its penetration piece structure |
-
2014
- 2014-02-27 CN CN201420085102.3U patent/CN203839053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737244A (en) * | 2019-02-15 | 2019-05-10 | 中广核工程有限公司 | Nuclear power plant's penetration piece end socket and its penetration piece structure |
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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 |
Granted publication date: 20140917 Termination date: 20210227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |